Woods Hole Oceanographic Institution

Cruise Planning Synopsis


AT37-08 Cheadle "Pito Deep Gabbros"

Ship

R/V Atlantis

Vehicles

AUV Sentry, ROV Jason
- added ROV Jason on Sep 8, 2016 9:49 AM by Chad Smith
- added AUV Sentry on Sep 8, 2016 9:49 AM by Chad Smith

Cruise Party

Michael Cheadle: Chief Scientist, Principal Investigator
University of Wyoming 1000 E University Ave Laramie, Wyoming USA 82071
+1 307 721 5082
cheadle@uwyo.edu

Jeffrey Gee: Principal Investigator
USA
+1 858 534 4707
jsgee@ucsd.edu

Barbara John: Principal Investigator
University of Wyoming P.O. BOX 3006 Laramie, WY USA 82071
+1 307 766 4232
bjohn@uwyo.edu
- added Michael Cheadle as Chief Scientist on Sep 8, 2016 9:49 AM by Chad Smith
- added Michael Cheadle as Principal Investigator on Sep 8, 2016 9:49 AM by Chad Smith
- added Jeffrey Gee as Principal Investigator on Sep 8, 2016 9:49 AM by Chad Smith
- added Barbara John as Principal Investigator on Sep 8, 2016 9:49 AM by Chad Smith

Departure: Jan 14, 2017

Isla de Pascua (Easter Island)

Arrival: Feb 20, 2017

Arica- Chile

Operations Area

Pito Deep, NE corner of the Easter Microplate EPR
- Pito Deep, NE corner of the Easter Microplate EPR on Sep 8, 2016 9:49 AM by Chad Smith
Lat/Lon: 22° 58.0′ S / 111° 57.0′ W
- set lat to 22° 58.0′ S, set lon to 111° 57.0′ W on Sep 8, 2016 9:49 AM by Chad Smith
Depth Range: 2000m / 6000m
- set min to 2000m, set max to 6000m on Sep 8, 2016 9:49 AM by Chad Smith
Will the vessel be operating within 200 NM of a foreign country? no

Science Objectives

i)   Map, using Sentry, the bathymetry & collect magnetic data along part of the north wall of Pito Deep in order to a) determine the vertical geometry of the magnetic polarity boundaries (stripes),  & b) determine locations for Jason II dives.

ii)   Conduct Jason traverses (& dredges- during Sentry dives if possible) on the north wall  to sample the upper part (1-2km?) of the gabbros that form ocean crust layer 3. The traverses will be spaced over a distance of ~20km allowing us to examine the lateral variation in layer 3 along a flowline & overall determine how ocean crust is accreted.

iii)   Explore for seafloor fluid flow during  Sentry dives; if feasible, prospect for fluid flow with water column sensors.

iv)  Dive with Jason II to sample any new fluid flow sites found in Pito Deep area

Visit the black smoker site on Pito Seamount (2200m), last visited by Nautile 23 years ago to photograph and sample rocks and possibly vent (micro)biological samples. This site is ~50km to the SE of the main work site. (Station 3- Pito Seamount)
Objectives iii, iv and v are secondary to objectives i & ii.

- changed

i)  Map, using Sentry, the bathymetry & collect magnetic data along part of the north wall of Pito Deep in order to a) determine the vertical geometry of the magnetic polarity boundaries (stripes) & b) determine locations for Jason II dives.
ii) Conduct Jason traverses (& dredges) on the north wall  to sample the upper part (1-2km?) of the gabbros that form ocean crust layer 3. The traverses will be spaced over a distance of ~20km allowing us to examine the lateral variation in layer 3 along a flowline & overall determine how ocean crust is accreted.
iii) Explore for seafloor fluid flow at the bottom of Pito Deep (6000m), using Sentry & CTD's, including fluid sampling & shipboard methane analysis
iv) Dive with Jason II to sample any new fluid flow sites found in Pito Deep area
v) Visit the black smoker site on Pito Seamount (2200m), last visited by Nautile 23 years ago to photograph and sample vent fluids & (micro)biological samples. This site is ~50km to the SE of the main work site. (Station 3- Pito Seamount)

 to

i)   Map, using Sentry, the bathymetry & collect magnetic data along part of the north wall of Pito Deep in order to a) determine the vertical geometry of the magnetic polarity boundaries (stripes),  & b) determine locations for Jason II dives.

ii)   Conduct Jason traverses (& dredges- during Sentry dives if possible) on the north wall  to sample the upper part (1-2km?) of the gabbros that form ocean crust layer 3. The traverses will be spaced over a distance of ~20km allowing us to examine the lateral variation in layer 3 along a flowline & overall determine how ocean crust is accreted.

iii)   Explore for seafloor fluid flow during  Sentry dives; if feasible, prospect for fluid flow with water column sensors.

iv)  Dive with Jason II to sample any new fluid flow sites found in Pito Deep area

Visit the black smoker site on Pito Seamount (2200m), last visited by Nautile 23 years ago to photograph and sample rocks and possibly vent (micro)biological samples. This site is ~50km to the SE of the main work site. (Station 3- Pito Seamount)
Objectives iii, iv and v are secondary to objectives i & ii.

 on Jan 9, 2017 9:17 AM by Chad Smith
- changed

i)  Map, using Sentry, the bathymetry & collect magnetic data along part of the north wall of Pito Deep in order to a) determine the vertical geometry of the magnetic polarity boundaries (stripes) & b) determine locations for Jason II dives.
ii) Conduct Jason traverses (& dredges) on the north wall  to sample the upper part (1-2km?) of the gabbros that form ocean crust layer 3. The traverses will be spaced over a distance of ~20km allowing us to examine the lateral variation in layer 3 along a flowline & overall determine how ocean crust is accreted.
iii) Explore for seafloor fluid flow at the bottom of Pito Deep (6000m), using Sentry & CTD's, including fluid sampling & shipboard methane analysis
iv) Dive with Jason II to sample any new fluid flow sites found in Pito Deep area
v) Visit the black smoker site on Pito Seamount (2200m), last visited by Nautile 23 years ago to photograph and sample vent fluids & (micro)biological samples. This site is ~50km to the SE of the main work site. (Station 3- Pito Seamount)
Objectives iii, iv and v are secondary to objectives i & ii and will be overseen by Chris German (WHOI) who is part of the Science Party.

 to

i)  Map, using Sentry, the bathymetry & collect magnetic data along part of the north wall of Pito Deep in order to a) determine the vertical geometry of the magnetic polarity boundaries (stripes) & b) determine locations for Jason II dives.
ii) Conduct Jason traverses (& dredges) on the north wall  to sample the upper part (1-2km?) of the gabbros that form ocean crust layer 3. The traverses will be spaced over a distance of ~20km allowing us to examine the lateral variation in layer 3 along a flowline & overall determine how ocean crust is accreted.
iii) Explore for seafloor fluid flow at the bottom of Pito Deep (6000m), using Sentry & CTD's, including fluid sampling & shipboard methane analysis
iv) Dive with Jason II to sample any new fluid flow sites found in Pito Deep area
v) Visit the black smoker site on Pito Seamount (2200m), last visited by Nautile 23 years ago to photograph and sample vent fluids & (micro)biological samples. This site is ~50km to the SE of the main work site. (Station 3- Pito Seamount)

 on Jan 9, 2017 9:12 AM by Chad Smith
-

i)  Map, using Sentry, the bathymetry & collect magnetic data along part of the north wall of Pito Deep in order to a) determine the vertical geometry of the magnetic polarity boundaries (stripes) & b) determine locations for Jason II dives.
ii) Conduct Jason traverses (& dredges) on the north wall  to sample the upper part (1-2km?) of the gabbros that form ocean crust layer 3. The traverses will be spaced over a distance of ~20km allowing us to examine the lateral variation in layer 3 along a flowline & overall determine how ocean crust is accreted.
iii) Explore for seafloor fluid flow at the bottom of Pito Deep (6000m), using Sentry & CTD's, including fluid sampling & shipboard methane analysis
iv) Dive with Jason II to sample any new fluid flow sites found in Pito Deep area
v) Visit the black smoker site on Pito Seamount (2200m), last visited by Nautile 23 years ago to photograph and sample vent fluids & (micro)biological samples. This site is ~50km to the SE of the main work site. (Station 3- Pito Seamount)
Objectives iii, iv and v are secondary to objectives i & ii and will be overseen by Chris German (WHOI) who is part of the Science Party.

 on Sep 8, 2016 9:49 AM by Chad Smith

Science Activities

i)  Sentry surveys to collect bathymetric, side-scan, and high-resolution magnetic anomaly data, to identify sampling targets and map reversal boundaries. Sentry surveys will be conducted ~80m above bottom, with contour parallel lines and a nominal vertical spacing of 100m to allow complete bathymetric and side-scan coverage with the Reson 7125 system, and to permit gridding of the near-bottom magnetic anomaly data.  Approx 8-10 x 20hr dives.  Approx 4-5 dives at the start of the cruise. (Area B)  & 4-5 dives midway through the cruise (Area A). These Areas are very close to each other  (10nm)  See supporting figures.
 ii) The new Sentry surveys and all existing DSL-120 side-scan imagery and previous dive transects will be used to select locations for Jason II dives.  We expect sediment cover & mass wasting to be extensive, hence the need for as much information as possible to site the Jason dives. We envisage ~5 Jason dives/transects to photograph & sample the gabbros, spaced approximately 5km apart (from ~6km to 3.5km water depth- maximum possible range) over a distance of ~ 20km. (Areas B & A). Area B is likely to be the main target.
iii) Dredging of the gabbros during Sentry dives, if possible, or during downtime. (Areas B & A). Note, we understand efficiency is the key here & it might turn out that because of the winch issue for Jason & dredging & the difficulty of dredging during Sentry dives that dredging activities become a minor activity & in which case max. efficiency might involve inter-leaved Sentry & Jason dives.
iv) Explore for seafloor fluid flow using  Sentry equipped with available in situ water column sensors, sidescan  to prospect for fluid flow, during the Sentry dives if possible.   Assuming time is available, we would also plan to dive on new sites of fluid flow found within the cruise duration as part of the ongoing Jason dive program at Pito Deep.
v) At the end of the cruise, assuming time permits, we would like to carry out one Jason II dive  on a black smoker site on Pito Seamount (50km to the SE) last visited by Nautille in 1993 (Station 3- Pito Seamount). This site has never previously been sampled. We propose to collect rock samples & “voucher” (micro)-biological samples (collected by slurp sampler and/or bio-box then frozen aboard ship) to colleagues ashore. See supporting figure for location.
Note activities i to iii are the main priority of the cruise. Activities iv & v are ancillary activities to be scheduled as timing permits. 
Also, we would like to carry out dual Sentry & Jason II operations as much as possible given the water depths & logistical limitations.
Maps of areas B & A are attached 

- changed

i)  Sentry surveys to collect bathymetric, side-scan, and high-resolution magnetic anomaly data, to identify sampling targets and map reversal boundaries. Sentry surveys will be conducted ~80m above bottom, with contour parallel lines and a nominal vertical spacing of 100m to allow complete bathymetric and side-scan coverage with the Reson 7125 system, and to permit gridding of the near-bottom magnetic anomaly data.  Approx 8-10 x 20hr dives at the start of the cruise. (Stations 1 & 2 = areas B & A  These Areas are very close to each other  (10nm) and we would prefer to map both areas first before commencing Jason dives-  in order to recognize the best locations for the Jason dives.  See supporting figures.
 ii) The new Sentry surveys and all existing DSL-120 side-scan imagery and previous dive transects will be used to select locations for Jason II dives.  We expect sediment cover & mass wasting to be extensive, hence the need for as much information as possible to site the Jason dives. We envisage ~5 Jason dives/transects to photograph & sample the gabbros, spaced approximately 5km apart (from ~6km to 3.5km water depth- maximum possible range) over a distance of ~ 20km. (Areas B & A)
iii) Dredging of the gabbros between dives. (Areas B & A)
iv) Explore for seafloor fluid flow at the bottom of Pito Deep (6km) using CTD's (6-12 casts total) between Jason dives & later in the cruise, after phase 1 mapping is complete, use Sentry equipped with in situ water column sensors, sidescan & photography to prospect for fluid flow.  Also, sampling and shipboard methane analysis is proposed. See supporting figure.  Assuming time is available, we would also plan to dive to and sample any new sites of fluid flow found within the cruise duration as part of the ongoing Jason dive program at Pito Deep.
v) At the end of the cruise, assuming time permits, we would like to carry out one Jason II dive  on a black smoker site on Pito Seamount (50km to the SE) last visited by Nautille in 1993 (Station 3- Pito Seamount). This site has never previously been sampled. We propose to collect fluids for our own geochemical analyses, using Seewald’s IGT samplers (project funded through WHOI's Ocean Exploration Institute) and to return “voucher” (micro)-biological samples (collected by slurp sampler and/or bio-box then frozen aboard ship) to colleagues ashore. (Led by Chris German). See supporting figure for location.
Note activities i to iii are the main priority of the cruise. Activities iv & v are ancillary activities to be scheduled as timing permits. 
Also, we would like to carry out dual Sentry & Jason II operations as much as possible given the water depths & logistical limitations.
Maps of areas B & A are attached 

 to

i)  Sentry surveys to collect bathymetric, side-scan, and high-resolution magnetic anomaly data, to identify sampling targets and map reversal boundaries. Sentry surveys will be conducted ~80m above bottom, with contour parallel lines and a nominal vertical spacing of 100m to allow complete bathymetric and side-scan coverage with the Reson 7125 system, and to permit gridding of the near-bottom magnetic anomaly data.  Approx 8-10 x 20hr dives.  Approx 4-5 dives at the start of the cruise. (Area B)  & 4-5 dives midway through the cruise (Area A). These Areas are very close to each other  (10nm)  See supporting figures.
 ii) The new Sentry surveys and all existing DSL-120 side-scan imagery and previous dive transects will be used to select locations for Jason II dives.  We expect sediment cover & mass wasting to be extensive, hence the need for as much information as possible to site the Jason dives. We envisage ~5 Jason dives/transects to photograph & sample the gabbros, spaced approximately 5km apart (from ~6km to 3.5km water depth- maximum possible range) over a distance of ~ 20km. (Areas B & A). Area B is likely to be the main target.
iii) Dredging of the gabbros during Sentry dives, if possible, or during downtime. (Areas B & A). Note, we understand efficiency is the key here & it might turn out that because of the winch issue for Jason & dredging & the difficulty of dredging during Sentry dives that dredging activities become a minor activity & in which case max. efficiency might involve inter-leaved Sentry & Jason dives.
iv) Explore for seafloor fluid flow using  Sentry equipped with available in situ water column sensors, sidescan  to prospect for fluid flow, during the Sentry dives if possible.   Assuming time is available, we would also plan to dive on new sites of fluid flow found within the cruise duration as part of the ongoing Jason dive program at Pito Deep.
v) At the end of the cruise, assuming time permits, we would like to carry out one Jason II dive  on a black smoker site on Pito Seamount (50km to the SE) last visited by Nautille in 1993 (Station 3- Pito Seamount). This site has never previously been sampled. We propose to collect rock samples & “voucher” (micro)-biological samples (collected by slurp sampler and/or bio-box then frozen aboard ship) to colleagues ashore. See supporting figure for location.
Note activities i to iii are the main priority of the cruise. Activities iv & v are ancillary activities to be scheduled as timing permits. 
Also, we would like to carry out dual Sentry & Jason II operations as much as possible given the water depths & logistical limitations.
Maps of areas B & A are attached 

 on Jan 9, 2017 9:17 AM by Chad Smith
- changed

i)  Sentry surveys to collect bathymetric, side-scan, and high-resolution magnetic anomaly data, to identify sampling targets and map reversal boundaries. Sentry surveys will be conducted ~80m above bottom, with contour parallel lines and a nominal vertical spacing of 100m to allow complete bathymetric and side-scan coverage with the Reson 7125 system, and to permit gridding of the near-bottom magnetic anomaly data.  Approx 8-10 x 20hr dives at the start of the cruise. (Stations 1 & 2 = areas B & A  These Areas are very close to each other  (10nm) and we would prefer to map both areas first before commencing Jason dives-  in order to recognize the best locations for the Jason dives.  See supporting figures.
 ii) The new Sentry surveys and all existing DSL-120 side-scan imagery and previous dive transects will be used to select locations for Jason II dives.  We expect sediment cover & mass wasting to be extensive, hence the need for as much information as possible to site the Jason dives. We envisage ~5 Jason dives/transects to photograph & sample the gabbros, spaced approximately 5km apart (from ~6km to 3.5km water depth- maximum possible range) over a distance of ~ 20km. (Areas B & A)
iii) Dredging of the gabbros between dives. (Areas B & A)
iv) Explore for seafloor fluid flow at the bottom of Pito Deep (6km) using CTD's (6-12 casts total) between Jason dives & later in the cruise, after phase 1 mapping is complete, use Sentry equipped with in situ water column sensors, sidescan & photography to prospect for fluid flow.  Also, sampling and shipboard methane analysis is proposed. (Led by Chris German). See supporting figure.  Assuming time is available, we would also plan to dive to and sample any new sites of fluid flow found within the cruise duration as part of the ongoing Jason dive program at Pito Deep.
v) At the end of the cruise, assuming time permits, we would like to carry out one Jason II dive  on a black smoker site on Pito Seamount (50km to the SE) last visited by Nautille in 1993 (Station 3- Pito Seamount). This site has never previously been sampled. We propose to collect fluids for our own geochemical analyses, using Seewald’s IGT samplers (project funded through WHOI's Ocean Exploration Institute) and to return “voucher” (micro)-biological samples (collected by slurp sampler and/or bio-box then frozen aboard ship) to colleagues ashore. (Led by Chris German). See supporting figure for location.
Note activities i to iii are the main priority of the cruise. Activities iv & v are ancillary activities to be scheduled as timing permits. 
Also, we would like to carry out dual Sentry & Jason II operations as much as possible given the water depths & logistical limitations.
Maps of areas B & A are attached 

 to

i)  Sentry surveys to collect bathymetric, side-scan, and high-resolution magnetic anomaly data, to identify sampling targets and map reversal boundaries. Sentry surveys will be conducted ~80m above bottom, with contour parallel lines and a nominal vertical spacing of 100m to allow complete bathymetric and side-scan coverage with the Reson 7125 system, and to permit gridding of the near-bottom magnetic anomaly data.  Approx 8-10 x 20hr dives at the start of the cruise. (Stations 1 & 2 = areas B & A  These Areas are very close to each other  (10nm) and we would prefer to map both areas first before commencing Jason dives-  in order to recognize the best locations for the Jason dives.  See supporting figures.
 ii) The new Sentry surveys and all existing DSL-120 side-scan imagery and previous dive transects will be used to select locations for Jason II dives.  We expect sediment cover & mass wasting to be extensive, hence the need for as much information as possible to site the Jason dives. We envisage ~5 Jason dives/transects to photograph & sample the gabbros, spaced approximately 5km apart (from ~6km to 3.5km water depth- maximum possible range) over a distance of ~ 20km. (Areas B & A)
iii) Dredging of the gabbros between dives. (Areas B & A)
iv) Explore for seafloor fluid flow at the bottom of Pito Deep (6km) using CTD's (6-12 casts total) between Jason dives & later in the cruise, after phase 1 mapping is complete, use Sentry equipped with in situ water column sensors, sidescan & photography to prospect for fluid flow.  Also, sampling and shipboard methane analysis is proposed. See supporting figure.  Assuming time is available, we would also plan to dive to and sample any new sites of fluid flow found within the cruise duration as part of the ongoing Jason dive program at Pito Deep.
v) At the end of the cruise, assuming time permits, we would like to carry out one Jason II dive  on a black smoker site on Pito Seamount (50km to the SE) last visited by Nautille in 1993 (Station 3- Pito Seamount). This site has never previously been sampled. We propose to collect fluids for our own geochemical analyses, using Seewald’s IGT samplers (project funded through WHOI's Ocean Exploration Institute) and to return “voucher” (micro)-biological samples (collected by slurp sampler and/or bio-box then frozen aboard ship) to colleagues ashore. (Led by Chris German). See supporting figure for location.
Note activities i to iii are the main priority of the cruise. Activities iv & v are ancillary activities to be scheduled as timing permits. 
Also, we would like to carry out dual Sentry & Jason II operations as much as possible given the water depths & logistical limitations.
Maps of areas B & A are attached 

 on Jan 9, 2017 9:12 AM by Chad Smith
-

i)  Sentry surveys to collect bathymetric, side-scan, and high-resolution magnetic anomaly data, to identify sampling targets and map reversal boundaries. Sentry surveys will be conducted ~80m above bottom, with contour parallel lines and a nominal vertical spacing of 100m to allow complete bathymetric and side-scan coverage with the Reson 7125 system, and to permit gridding of the near-bottom magnetic anomaly data.  Approx 8-10 x 20hr dives at the start of the cruise. (Stations 1 & 2 = areas B & A  These Areas are very close to each other  (10nm) and we would prefer to map both areas first before commencing Jason dives-  in order to recognize the best locations for the Jason dives.  See supporting figures.
 ii) The new Sentry surveys and all existing DSL-120 side-scan imagery and previous dive transects will be used to select locations for Jason II dives.  We expect sediment cover & mass wasting to be extensive, hence the need for as much information as possible to site the Jason dives. We envisage ~5 Jason dives/transects to photograph & sample the gabbros, spaced approximately 5km apart (from ~6km to 3.5km water depth- maximum possible range) over a distance of ~ 20km. (Areas B & A)
iii) Dredging of the gabbros between dives. (Areas B & A)
iv) Explore for seafloor fluid flow at the bottom of Pito Deep (6km) using CTD's (6-12 casts total) between Jason dives & later in the cruise, after phase 1 mapping is complete, use Sentry equipped with in situ water column sensors, sidescan & photography to prospect for fluid flow.  Also, sampling and shipboard methane analysis is proposed. (Led by Chris German). See supporting figure.  Assuming time is available, we would also plan to dive to and sample any new sites of fluid flow found within the cruise duration as part of the ongoing Jason dive program at Pito Deep.
v) At the end of the cruise, assuming time permits, we would like to carry out one Jason II dive  on a black smoker site on Pito Seamount (50km to the SE) last visited by Nautille in 1993 (Station 3- Pito Seamount). This site has never previously been sampled. We propose to collect fluids for our own geochemical analyses, using Seewald’s IGT samplers (project funded through WHOI's Ocean Exploration Institute) and to return “voucher” (micro)-biological samples (collected by slurp sampler and/or bio-box then frozen aboard ship) to colleagues ashore. (Led by Chris German). See supporting figure for location.
Note activities i to iii are the main priority of the cruise. Activities iv & v are ancillary activities to be scheduled as timing permits. 
Also, we would like to carry out dual Sentry & Jason II operations as much as possible given the water depths & logistical limitations.
Maps of areas B & A are attached 

 on Sep 8, 2016 9:49 AM by Chad Smith

Additional Info

Pre-cruise Planning Meeting: Teleconference
- Teleconference on Sep 8, 2016 9:49 AM by Chad Smith
Meeting Notes: 3-way: Cheadle & John in Wyoming Gee at Scripps & WHOI
- 3-way: Cheadle & John in Wyoming Gee at Scripps & WHOI on Sep 8, 2016 9:49 AM by Chad Smith
Media personnel on board: Video, Writer, Teacher
- Video, Writer, Teacher on Sep 8, 2016 9:49 AM by Chad Smith
We have discussed (organized) extra bandwidth with Kevin Walsh (Scripps) HSN support. We have extra monies in the grant for this. We plan on taking 3 media/education folks & plan on carrying out some (2 per day?) 2-way ship to shore broadcasts to schools, societies etc. We intend to make videos, podcasts, blogs etc.
- We have discussed (organized) extra bandwidth with Kevin Walsh (Scripps) HSN support. We have extra monies in the grant for this. We plan on taking 3 media/education folks & plan on carrying out some (2 per day?) 2-way ship to shore broadcasts to schools, societies etc. We intend to make videos, podcasts, blogs etc. on Sep 8, 2016 9:49 AM by Chad Smith

Stations:

  Area B
  Distance: 279
  Days: 10
  Latitude: 23° 0.27’ S
  Longitude: 111° 54.219’ W

  Area A
  Distance: 10
  Days: 13
  Latitude: 22° 53.021’ S
  Longitude: 112° 3.595’ W

  Pito Seamount
  Distance: 36
  Days: 2
  Latitude: 23° 19.742’ S
  Longitude: 111° 38.709’ W
- added Name: Area B, Lat: 23° 0.27’ S, Lon: 111° 54.219’ W, Distance: 279, Days: 10
added Name: Area A, Lat: 22° 53.021’ S, Lon: 112° 3.595’ W, Distance: 10, Days: 13
added Name: Pito Seamount, Lat: 23° 19.742’ S, Lon: 111° 38.709’ W, Distance: 36, Days: 2 on Sep 8, 2016 9:49 AM by Chad Smith

Supporting documentation:

»Atlantis_Ver11Aug16_2017.pdf
»Areas-A---B--approx-location-of-Sentry-maps.jpg
»Very-approx-location-of-jason-dives.jpg
»Tentative-location-map-for-CTD's--&-Pito-Seamounta.jpg
- added Atlantis_Ver11Aug16_2017.pdf on Sep 8, 2016 12:30 PM by Chad Smith
- added Areas-A---B--approx-location-of-Sentry-maps.jpg on Sep 8, 2016 9:49 AM by Chad Smith
- added Very-approx-location-of-jason-dives.jpg on Sep 8, 2016 9:49 AM by Chad Smith
- added Tentative-location-map-for-CTD's--&-Pito-Seamounta.jpg on Sep 8, 2016 9:49 AM by Chad Smith
Notes: BOXES - FOR CHEADLE from Dan F
These notes are from email messages:

here is a photo of the science hold with our 3 boxes left for you with the following
1) 1 gray tote with UF microscope and gloves & your 2 microscope lights
2) 1 cardboard box with the shank WHOI microscope
3) 1 large gray case with my 3 monitors (2 work and i have to mail you the dongles)

there will be a 4th box - gray plastic tote in that same place too with the expresso maker and 2 coffee pots,
grinder etc.

there is more coffee beans in with the monitors and #4 and #2 filters and filter holders and 1 grinder

2-Dec-2016 Mike Perfit email
A few notes: The UF binoc focus does not rachet to focus any longer but works by moving the oculars up and down with
the coarse adjustment.Read the instructions for the espresso maker, it’s a bit different than the one I have at home
in terms of “foaming”. It also has sizes for single and double shots.  we are leaving a number of pounds of beans
and also coffee “pods” that are an easy way to make espresso.

2-Dec-2016 email - Dan F
hi sharon OKi’ll put the MAPR case with the other boxes we are leaving for mike and bobbie in the science hold
(coffee makers, microscopes, lights, etc)

i’ll let allison SSSG know too and will mark the box - it is a black pelican case.
- -changed BOXES - FOR CHEADLE from Dan F
These notes are from email messages:

here is a photo of the science hold with our 3 boxes left for you with the following
1) 1 gray tote with UF microscope and gloves & your 2 microscope lights
2) 1 cardboard box with the shank WHOI microscope
3) 1 large gray case with my 3 monitors (2 work and i have to mail you the dongles)

there will be a 4th box - gray plastic tote in that same place too with the expresso maker and 2 coffee pots,
grinder etc.

there is more coffee beans in with the monitors and #4 and #2 filters and filter holders and 1 grinder

2-Dec-2016 Mike Perfit email
A few notes: The UF binoc focus does not rachet to focus any longer but works by moving the oculars up and down with
the coarse adjustment.Read the instructions for the espresso maker, it’s a bit different than the one I have at home
in terms of “foaming”. It also has sizes for single and double shots.  we are leaving a number of pounds of beans
and also coffee “pods” that are an easy way to make espresso.

2-Dec-2016 email - Dan F
hi sharon OKi’ll put the MAPR case with the other boxes we are leaving for mike and bobbie in the science hold
(coffee makers, microscopes, lights, etc)

i’ll let allison SSSG know too and will mark the box - it is a black pelican case.  to BOXES - FOR CHEADLE from Dan F
These notes are from email messages:

here is a photo of the science hold with our 3 boxes left for you with the following
1) 1 gray tote with UF microscope and gloves & your 2 microscope lights
2) 1 cardboard box with the shank WHOI microscope
3) 1 large gray case with my 3 monitors (2 work and i have to mail you the dongles)

there will be a 4th box - gray plastic tote in that same place too with the expresso maker and 2 coffee pots,
grinder etc.

there is more coffee beans in with the monitors and #4 and #2 filters and filter holders and 1 grinder

2-Dec-2016 Mike Perfit email
A few notes: The UF binoc focus does not rachet to focus any longer but works by moving the oculars up and down with
the coarse adjustment.Read the instructions for the espresso maker, it’s a bit different than the one I have at home
in terms of “foaming”. It also has sizes for single and double shots.  we are leaving a number of pounds of beans
and also coffee “pods” that are an easy way to make espresso.

2-Dec-2016 email - Dan F
hi sharon OKi’ll put the MAPR case with the other boxes we are leaving for mike and bobbie in the science hold
(coffee makers, microscopes, lights, etc)

i’ll let allison SSSG know too and will mark the box - it is a black pelican case. on Dec 30, 2016 5:22 PM by Allison Heater
- -added BOXES - FOR CHEADLE from Dan F
These notes are from email messages:

here is a photo of the science hold with our 3 boxes left for you with the following
1) 1 gray tote with UF microscope and gloves & your 2 microscope lights
2) 1 cardboard box with the shank WHOI microscope
3) 1 large gray case with my 3 monitors (2 work and i have to mail you the dongles)

there will be a 4th box - gray plastic tote in that same place too with the expresso maker and 2 coffee pots,
grinder etc.

there is more coffee beans in with the monitors and #4 and #2 filters and filter holders and 1 grinder

2-Dec-2016 Mike Perfit email
A few notes: The UF binoc focus does not rachet to focus any longer but works by moving the oculars up and down with
the coarse adjustment.Read the instructions for the espresso maker, it’s a bit different than the one I have at home
in terms of “foaming”. It also has sizes for single and double shots.  we are leaving a number of pounds of beans
and also coffee “pods” that are an easy way to make espresso.

2-Dec-2016 email - Dan F
hi sharon OKi’ll put the MAPR case with the other boxes we are leaving for mike and bobbie in the science hold
(coffee makers, microscopes, lights, etc)

i’ll let allison SSSG know too and will mark the box - it is a black pelican case.  on Dec 30, 2016 5:22 PM by Allison Heater

Funding

Funding Agency: NSF
Grant or contract number: 1459387
Funding Agency: NSF
Grant or contract number: 1459462

Scientific Instrumentation for R/V Atlantis

Shipboard Equipment

Bathymetry System 3.5 kHz ,
Relay Transponder for Wire Use,
12 kHz Pinger for Wire Use,
Transponder Navigation - Sonardyne USBL,
Navigation - Heading,
Multibeam ,
Navigation - Position,
Towed Magnetometer
-added Multibeam on Sep 8, 2016 9:49 AM by Chad Smith
-added Towed Magnetometer on Sep 8, 2016 9:49 AM by Chad Smith
-added Navigation - Position on Sep 8, 2016 9:49 AM by Chad Smith
-added Transponder Navigation - Sonardyne USBL on Sep 8, 2016 9:49 AM by Chad Smith
-added 12 kHz Pinger for Wire Use on Sep 8, 2016 9:49 AM by Chad Smith
-added Navigation - Heading on Sep 8, 2016 9:49 AM by Chad Smith
-added Relay Transponder for Wire Use on Sep 8, 2016 9:49 AM by Chad Smith
-added Bathymetry System 3.5 kHz on Sep 8, 2016 9:49 AM by Chad Smith

Shipboard Communication

Basic Internet access via HiSeasNet,
Is there an expectation to use Skype or any other real-time video conference program?,
Is there a need to transfer data to shore on a regular basis?
-added Basic Internet access via HiSeasNet on Sep 8, 2016 9:49 AM by Chad Smith
-added Is there an expectation to use Skype or any other real-time video conference program? on Sep 8, 2016 9:49 AM by Chad Smith
-added Is there a need to transfer data to shore on a regular basis? on Sep 8, 2016 9:49 AM by Chad Smith

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors,
Seapoint STM turbidity sensor,
Wet Labs C*Star transmissometer (660nm wavelength)
-added 911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors on Sep 8, 2016 9:49 AM by Chad Smith
-added Seapoint STM turbidity sensor on Sep 8, 2016 9:49 AM by Chad Smith
-added Wet Labs C*Star transmissometer (660nm wavelength) on Sep 8, 2016 9:49 AM by Chad Smith

Critical CTD Sensors

If the STM is not already High-Gain (same as on Sentry) then Chris German can bring his own (2)
- added If the STM is not already High-Gain (same as on Sentry) then Chris German can bring his own (2) on Sep 8, 2016 9:49 AM by Chad Smith

Sediment Sampling

Rock dredges
-added Rock dredges on Sep 8, 2016 9:49 AM by Chad Smith

Sample Storage

Freezer -70°C 25 cu. ft.,
Freezer -70°C 3.2 cu. ft. ea.
-added Freezer -70°C 25 cu. ft. on Sep 8, 2016 9:49 AM by Chad Smith
-added Freezer -70°C 3.2 cu. ft. ea. on Sep 8, 2016 9:49 AM by Chad Smith
Storage Notes: We would like the opportunity to collect voucher biological samples from Pito Seamount since that site has never been sampled previously.  Best practice for DNA analyses of samples (to be offloaded at cruise end and airshipped back to US) would be to freeze samples to -70C while at sea.
- added We would like the opportunity to collect voucher biological samples from Pito Seamount since that site has never been sampled previously.  Best practice for DNA analyses of samples (to be offloaded at cruise end and airshipped back to US) would be to freeze samples to -70C while at sea. on Sep 8, 2016 9:49 AM by Chad Smith

Navigation

Will you be using Long Base Line (LBL) navigation? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
How many nets? null
How many tansponders? null
Will you be using Ultra-short baseline (USBL) navigation?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith

Navigation

GPS,
USBL
-added GPS on Sep 8, 2016 9:49 AM by Chad Smith
-added USBL on Sep 8, 2016 9:49 AM by Chad Smith
Navigation Notes: We will require USBL for Sentry and Jason navigation.
Ideally, we would also like to attach a USBL beacon to the CTD so that if we find signals indicative of seafloor fluid flow, we know where those samples come from, at depth.
- added We will require USBL for Sentry and Jason navigation.
Ideally, we would also like to attach a USBL beacon to the CTD so that if we find signals indicative of seafloor fluid flow, we know where those samples come from, at depth. on Sep 8, 2016 9:49 AM by Chad Smith

Winches

CTD Winch with .322" Electro-mechanical wire,
Trawl Winch with 9/16th trawl wire
-added CTD Winch with .322" Electro-mechanical wire on Sep 8, 2016 9:49 AM by Chad Smith
-added Trawl Winch with 9/16th trawl wire on Sep 8, 2016 9:49 AM by Chad Smith
Winch Notes: a) CTD winch for CTD-rosette operations (vertical casts + Niskin sampling for methane analyses on ship using Jeff Seewald - WHOI MC&G's Gas Chrmatograph, operated by Sean Sylva (WHOI)

b) Trawl winch (presumably) for seafloor dredging - can WHOI provide Dredge Baskets etc?
- added a) CTD winch for CTD-rosette operations (vertical casts + Niskin sampling for methane analyses on ship using Jeff Seewald - WHOI MC&G's Gas Chrmatograph, operated by Sean Sylva (WHOI)

b) Trawl winch (presumably) for seafloor dredging - can WHOI provide Dredge Baskets etc? on Sep 8, 2016 9:49 AM by Chad Smith

Wire use and application

Trawl Winch with 9/16th trawl wire
-added Trawl Winch with 9/16th trawl wire on Sep 8, 2016 9:49 AM by Chad Smith
Winch Notes:
- removed answer Night-time dredging operations. on Sep 8, 2016 9:49 AM by Chad Smith
- added Night-time dredging operations. on Sep 8, 2016 9:49 AM by Chad Smith

Standard Oceanographic Cables

Slip ring required? no
Non-standard wire required? no
Traction winch required? no

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: no Type: 
Cruise Specific Science Winch Required: no Type: 
Nets Required: no Type: 

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? no

Special Requirements

Elecrical Power: no Identify 
Equipment Handling: no Identify: 
Inter/intraship Communications: no Identify: 
Science Stowage: yes Identify: 8 Zarges boxes, 100-200 x 5 gallon sample buckets. & a mini boat (~ 5ft long)
Water: yes Identify: Small amounts of Milli-Q likely to be useful for lab work
Science Stowage Revisions

- Science Stowage : changed from yes to no on Sep 8, 2016 9:49 AM by Chad Smith
- Science Stowage : added yes on Sep 8, 2016 9:49 AM by Chad Smith
- Identify : added 8 Zarges boxes, 100-200 x 5 gallon sample buckets. & a mini boat (~ 5ft long) on Sep 8, 2016 9:49 AM by Chad Smith
Inter/intraship Communications Revisions

- Water : changed from yes to no on Sep 8, 2016 9:49 AM by Chad Smith
- Water : added yes on Sep 8, 2016 9:49 AM by Chad Smith
- Identify : added Small amounts of Milli-Q likely to be useful for lab work on Sep 8, 2016 9:49 AM by Chad Smith

Additional Cruise Items/Activities

Explosive Devices:no
Portable Air Compressors:no
Flammable Gases:no
Small Boat Operations:no
SCUBA Diving Operations:no

Hazardous Material

Will hazardous material be utilized?yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Describe deployment method and quantity:
Sean Sylva (WHOI MC&G) will be operating a gas chromatograph aboard ship which requires use of compressed gases.  We will complete all necessary paperwork well ahead of the cruise, as required.
- added Sean Sylva (WHOI MC&G) will be operating a gas chromatograph aboard ship which requires use of compressed gases.  We will complete all necessary paperwork well ahead of the cruise, as required. on Sep 8, 2016 9:49 AM by Chad Smith

Radioactive Material

Radioiosotopes:no

Additional Information

Is night time work anticipated on this cruise?yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Specialized tech support (Seabeam, coring, other):
Dredging, Jason, Sentry
CTD casts will be conducted between Jason dives, whenever those opportunities arise.
These casts (up to 5h duration at 5000m depth) may be at night rather than in day time.
- added Dredging, Jason, Sentry
CTD casts will be conducted between Jason dives, whenever those opportunities arise.
These casts (up to 5h duration at 5000m depth) may be at night rather than in day time. on Sep 8, 2016 9:49 AM by Chad Smith
Other required equipment and special needs:
We plan to launch a 5ft long mini-boat/float for middle school kidz at some pt. during the cruise
Also, we will be carrying six Argo floats for James Gilson to launch periodically during the transit to Chile

We will also need the rock saws.  The one that is available on Atlantis & if necc. the 2nd one that will be travelling with the Gregg cruise. To save costs, we plan on sharing some equipment (microscopes etc.).
- changed from We plan to launch a 5ft long mini-boat/float for middle school kidz at some pt. during the cruise
Also, we will be carrying six Argo floats for James Gilson to launch periodically during the transit to Chile

We will also need the rock saws.  The one that is available on Atlantis & if necc. the 2nd one that will be travelling with the Gregg cruise. To save costs, we plan on sharing some equipment (e.g. microscopes). to We plan to launch a 5ft long mini-boat/float for middle school kidz at some pt. during the cruise
Also, we will be carrying six Argo floats for James Gilson to launch periodically during the transit to Chile

We will also need the rock saws.  The one that is available on Atlantis & if necc. the 2nd one that will be travelling with the Gregg cruise. To save costs, we plan sharing equipment like microscopes with the Gregg cruise. on Sep 8, 2016 9:49 AM by Chad Smith
- changed from We plan to launch a 5ft long mini-boat/float for middle school kidz at some pt. during the cruise
Also, we will be carrying six Argo floats for James Gilson to launch periodically during the transit to Chile

We will also need the rock saws.  The one that is available on Atlantis & if necc. the 2nd one that will be travelling with the Gregg cruise. To save costs, we plan on sharing some equipment (microscopes etc.). to We plan to launch a 5ft long mini-boat/float for middle school kidz at some pt. during the cruise
Also, we will be carrying six Argo floats for James Gilson to launch periodically during the transit to Chile

We will also need the rock saws.  The one that is available on Atlantis & if necc. the 2nd one that will be travelling with the Gregg cruise. To save costs, we plan on sharing some equipment (e.g. microscopes). on Sep 8, 2016 9:49 AM by Chad Smith
- added We plan to launch a 5ft long mini-boat/float for middle school kidz at some pt. during the cruise
Also, we will be carrying six Argo floats for James Gilson to launch periodically during the transit to Chile

We will also need the rock saws.  The one that is available on Atlantis & if necc. the 2nd one that will be travelling with the Gregg cruise. To save costs, we plan on sharing some equipment (microscopes etc.). on Sep 8, 2016 9:49 AM by Chad Smith

Scientific Instrumentation for HOV Jason


Current Chart(s):

Site Survey

Will you provide detailed charts of the work area(s)?yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
If no, willl you need R/V Atlantis to generate maps of the work area(s)?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Will you need post-dive maps of the work area generated?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith

Navigation

Will you be using Long Base Line (LBL) navigation? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
How many nets? null
How many tansponders? null
Will you be using Ultra-short baseline (USBL) navigation?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Will you be using Doppler/GPS navigation? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
What type of samples do you expect to collect?Primary objectives: rock sampling (including oriented samples using orientation device described below) Fluid flow sites: sampling of vent-fluids with IGT samplers (Seewald laboratory, WHOI) and biological samples using slurp sampler, bio-boxes
- added Primary objectives: rock sampling (including oriented samples using orientation device described below) Fluid flow sites: sampling of vent-fluids with IGT samplers (Seewald laboratory, WHOI) and biological samples using slurp sampler, bio-boxes on Sep 8, 2016 9:49 AM by Chad Smith

Elevators

Will you be using elevators to transport samples to the surface?yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
If yes, how many would you anticipate? Multiple deployments as necessary to recover rock samples. We plan 5 Jason dives up to 5km long.
- added Multiple deployments as necessary to recover rock samples. We plan 5 Jason dives up to 5km long. on Sep 8, 2016 9:49 AM by Chad Smith

Science Supplied Equipment

Are you supplying equipment to be used on HOV Jason yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Has this equipment been used on Jason before? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Please give a brief description of the equipment, its intended purpose, the cruise # it was last used on if any and its deployment method.
Collecting oriented rock samples is a primary goal of the cruise. We will supply a miniature orientation device and pressure case (with a backup sensor and pressure case) with T-bar for manipulation. We have been in touch with Tito Collasius about the orientation device (power, coms needs).  The sensors (Applied Physics Systems 544 orientation sensors) have been used previously on Jason (cruise AT11-23) mounted on the side of the ROV. In this application, a single sensor will be used with the manipulator arm to record orientation of rock surfaces. Previous pressure tests can be supplied and the pressure cases will be retested if any modifications are made.

We will bring sets of Jeff Seewald's IGT vent-fluid samplers for Pito Seamount and/or any other fluid flow sites that we find.  These samplers have been used repeatedly on numerous past Jason and Alvin cruises aboard the Atlantis.
- added Collecting oriented rock samples is a primary goal of the cruise. We will supply a miniature orientation device and pressure case (with a backup sensor and pressure case) with T-bar for manipulation. We have been in touch with Tito Collasius about the orientation device (power, coms needs).  The sensors (Applied Physics Systems 544 orientation sensors) have been used previously on Jason (cruise AT11-23) mounted on the side of the ROV. In this application, a single sensor will be used with the manipulator arm to record orientation of rock surfaces. Previous pressure tests can be supplied and the pressure cases will be retested if any modifications are made.

We will bring sets of Jeff Seewald's IGT vent-fluid samplers for Pito Seamount and/or any other fluid flow sites that we find.  These samplers have been used repeatedly on numerous past Jason and Alvin cruises aboard the Atlantis. on Sep 8, 2016 9:49 AM by Chad Smith
Does this equipment use an external pressure housing? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
If yes, what is the pressure rating?
and test pressure?
Has the pressure housing been tested per Alvin Pressure Test requirements? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Pressure housing schematic with dimensions and include air and water weights.
Does the equipment have an associated computer or control panel for remote operation from the personnel sphere? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Air weight of this equipment? 10
- added 10 on Sep 8, 2016 9:49 AM by Chad Smith
Water weight of this equipment? 4
- added 4 on Sep 8, 2016 9:49 AM by Chad Smith
Does the equipment require data or a power interface from the vehicle? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Does this equipment require hydraulic inputs from the vehicle? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Hydraulic schematic of the equipment requirements.
Does this equipment require manipulation? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
If yes, please describe how the equipment is to be manipulated:
The orientation devices are housed in cylindrical Ti pressure cases approximately 8" long and 2" in diameter. We intend to construct a T-bar (at least 7" tall and 3.5" wide per communication with WHOI) attachment for manipulation. The base of the cylindrical pressure case will have metal base plate (approximately 6-8" diameter) attached that will be placed against the rock. It would be ideal if real time azimuth and plunge information from the sensor could be displayed/recorded during sampling.
- added The orientation devices are housed in cylindrical Ti pressure cases approximately 8" long and 2" in diameter. We intend to construct a T-bar (at least 7" tall and 3.5" wide per communication with WHOI) attachment for manipulation. The base of the cylindrical pressure case will have metal base plate (approximately 6-8" diameter) attached that will be placed against the rock. It would be ideal if real time azimuth and plunge information from the sensor could be displayed/recorded during sampling. on Sep 8, 2016 9:49 AM by Chad Smith
Will this equipment be deployed off the vehicle? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
If yes, please describe how the equipment is intended for deployment:
If yes, will the equipment be disconnected from the vehicle and left in situ? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
How long will the deployment be?
Will the equipment be recovered by the same vehicle? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
If recovering equipment deployed with another vehicle, provide pressure rating:
and test pressure:
Does this equipment use any glass spheres for either buoyancy or as pressure housings? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith

Hazardous Material

Will hazardous material be utilized?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Describe deployment method and quantity:

Additional Information

Brief operations description or comments:
Require depth & any orientation information to be shown on Jason video.
- added Require depth & any orientation information to be shown on Jason video. on Sep 8, 2016 9:49 AM by Chad Smith

Scientific Instrumentation for AUV Sentry


Current Chart(s):

What type of samples do you expect to collect?None
- added yes on Sep 8, 2016 9:49 AM by Chad Smith

Site Survey

Will you provide detailed charts of the work area(s)?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
If no, willl you need R/V Atlantis to generate maps of the work area(s)?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Will you need post-dive maps of the work area generated?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith

Navigation

Will you be using Long Base Line (LBL) navigation? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
How many nets? null
How many tansponders? null
Will you be using Ultra-short baseline (USBL) navigation?no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Will you be using Doppler/GPS navigation? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
- added None on Sep 8, 2016 9:49 AM by Chad Smith

Science Supplied Equipment

Are you supplying equipment to be used on HOV AbeSentry yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Has this equipment been used on AbeSentry before? no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Please give a brief description of the equipment, its intended purpose, the cruise # it was last used on if any and its deployment method.
J. Gee will supply a Cs magnetometer system and pressure case. This prototype sensor from Geometrics has two small (~1 cubic inch) sensors and will allow total magnetic field intensities to be measured without the need for calibration and may also yield short baseline gradiometry data. We have been in discussion with Carl Kaiser about the sensor mounting, data logging and requirements for the pressure case. The sensor will be delivered in mid Sept. and a pressure case is in design. Because of the length of the pressure case (~36”) we anticipate that pressure tests will be conducted at WHOI. The sensor package is currently under review for export control. We have initiated a license request in the event that the sensor will be subject to ITAR/EAR export control.
- added J. Gee will supply a Cs magnetometer system and pressure case. This prototype sensor from Geometrics has two small (~1 cubic inch) sensors and will allow total magnetic field intensities to be measured without the need for calibration and may also yield short baseline gradiometry data. We have been in discussion with Carl Kaiser about the sensor mounting, data logging and requirements for the pressure case. The sensor will be delivered in mid Sept. and a pressure case is in design. Because of the length of the pressure case (~36”) we anticipate that pressure tests will be conducted at WHOI. The sensor package is currently under review for export control. We have initiated a license request in the event that the sensor will be subject to ITAR/EAR export control. on Sep 8, 2016 9:49 AM by Chad Smith
Does this equipment use an external pressure housing? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith
Has the pressure case been tested to the anticipated depth of deployment?& no
- added no on Sep 8, 2016 9:49 AM by Chad Smith
Pressure housing schematic with dimensions and include air and water weights.
Air weight of this equipment? 30
- added 30 on Sep 8, 2016 9:49 AM by Chad Smith
Water weight of this equipment? 10
- added 10 on Sep 8, 2016 9:49 AM by Chad Smith
Does the equipment require data or a power interface from the vehicle? yes
Does the equipment meet the electrical requirements of the Sentry User Manual? yes
- added yes on Sep 8, 2016 9:49 AM by Chad Smith

Additional Information

Brief operations description or comments:
Primary objectives for Sentry will be seafloor geophysical surveys- bathymetry, sidescan & magnetics.
Secondary objectives will include seafloor fluid flow detection and bottom photography in any candidate fluid flow sites.
- added Primary objectives for Sentry will be seafloor geophysical surveys- bathymetry, sidescan & magnetics.
Secondary objectives will include seafloor fluid flow detection and bottom photography in any candidate fluid flow sites. on Sep 8, 2016 9:49 AM by Chad Smith

Checklist & Notes

Checklist

U.S. Customs Form: no
Diplomatic Clearance: no
Date Submitted:
Date Approved:
Agent Information:
Countries:
Notes:
Isotope Use Approval: no
Isotope Notes:
SCUBA Diving: no

Checklist

SSSG Tech: