Accessing BCO-DMO data
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| Dataset Title: | [HADES-K Nereus dives - geo-referenced megafauna counts] - Nereus dive geo- referenced megafaunal transect data from the Kermadec Trench during cruise TN309 on RV/Thompson, May 2014 (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_765656) |
| Range: | longitude = -178.9629 to 179.81921°E, latitude = -37.734146 to -34.339405°N, depth = 3997.2 to 8083.8m |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Data Access Form
| Files
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Zoom: ![[The graph you specified. Please be patient.]](https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_765656.png?longitude,latitude,dive&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff)
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Attributes {
s {
date_start {
String bcodmo_name "date_start";
String description "Date at start of dive (UTC)";
String long_name "Date Start";
String source_name "date_start";
String time_precision "1970-01-01";
String units "unitless";
}
dive {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 64, 74;
String bcodmo_name "dive_id";
String description "Nereus dive number";
String long_name "Dive";
String units "unitless";
}
Time2_GMT {
String bcodmo_name "time_utc";
String description "time of dive (UTC) formatted as HH:MM:SS";
String long_name "Time2 GMT";
String units "unitless";
}
COG {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 356.0;
String bcodmo_name "cog";
String description "Course Over Ground";
String long_name "Course Over Ground";
String units "degrees";
}
SOG {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 30.2;
String bcodmo_name "sog";
String description "Speed Over Ground";
String long_name "Speed Over Ground";
String units "knots";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue NaN;
Float64 actual_range 3997.2, 8083.8;
String axis "Z";
String bcodmo_name "depth";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "pressure depth";
String ioos_category "Location";
String long_name "Depth";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
String positive "down";
String standard_name "depth";
String units "m";
}
Heading {
Float32 _FillValue NaN;
Float32 actual_range 0.7, 359.6;
String bcodmo_name "heading";
String description "compass vector degrees of the vehicle";
String long_name "Heading";
String units "degrees";
}
Temp {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 1.26;
String bcodmo_name "temperature";
String description "temperature";
String long_name "Temperature";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/";
String units "degrees Celsius";
}
Altitude {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 7.5;
String bcodmo_name "altitude";
String description "Doppler Velocity Log (2 beams)";
String long_name "Altitude";
String units "meters";
}
Distance {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 0.503333333;
String bcodmo_name "unknown";
String description "distance traveled; calculated using COS SOG and Heading";
String long_name "Distance";
String units "meters";
}
Distance_x {
Float64 _FillValue NaN;
Float64 actual_range -0.305300776, 0.405;
String bcodmo_name "unknown";
String description "distance in x direction; calculated using COS SOG and Heading";
String long_name "Distance X";
String units "meters";
}
Distance_y {
Float64 _FillValue NaN;
Float64 actual_range -0.498434928, 0.334966668;
String bcodmo_name "unknown";
String description "distance in x direction; calculated using COS SOG and Heading";
String long_name "Distance Y";
String units "meters";
}
Original_x {
Float64 _FillValue NaN;
Float64 actual_range -178.9629002, 179.819213;
String bcodmo_name "unknown";
String description "uncorrected x axis position using layback estimate from ship’s position";
String long_name "Original X";
String units "decimal degrees";
}
Original_y {
Float64 _FillValue NaN;
Float64 actual_range -37.73414749, -34.33940382;
String bcodmo_name "unknown";
String description "uncorrected y axis position using layback estimate from ship’s position";
String long_name "Original Y";
String units "decimal degrees";
}
New_x {
Float64 _FillValue NaN;
Float64 actual_range -178.9629003, 179.819214;
String bcodmo_name "unknown";
String description "corrected x axis position calculated using distance vector from previous position estimate";
String long_name "New X";
String units "decimal degrees";
}
New_y {
Float64 _FillValue NaN;
Float64 actual_range -37.73414775, -34.3394032;
String bcodmo_name "unknown";
String description "corrected x axis position calculated using distance vector from previous position estimate";
String long_name "New Y";
String units "decimal degrees";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue NaN;
Float64 actual_range -178.9629002, 179.819213;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "seafloor position calculated from New x and New y assuming on initial bottom position";
String ioos_category "Location";
String long_name "Longitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
String standard_name "longitude";
String units "degrees_east";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range -37.73414749, -34.33940382;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "seafloor position calculated from New x and New y assuming on initial bottom position";
String ioos_category "Location";
String long_name "Latitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
String standard_name "latitude";
String units "degrees_north";
}
Ophiuroid_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 11;
String bcodmo_name "count";
String description "number of Ophiuroid sp1 seen in image";
String long_name "Ophiuroid Sp1";
String units "organisms";
}
Ophiuroid_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 4;
String bcodmo_name "count";
String description "number of Ophiuroid sp2 seen in image";
String long_name "Ophiuroid Sp2";
String units "organisms";
}
Anemone_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Anemone sp1 seen in image";
String long_name "Anemone Sp1";
String units "organisms";
}
Anemone_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Anemone sp2 seen in image";
String long_name "Anemone Sp2";
String units "organisms";
}
Anemone_sp3 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Anemone sp3 seen in image";
String long_name "Anemone Sp3";
String units "organisms";
}
Anemone_sp4 {
String bcodmo_name "count";
String description "number of Anemone sp4 seen in image";
String long_name "Anemone Sp4";
String units "organisms";
}
Anemone_sp5 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Anemone sp5 seen in image";
String long_name "Anemone Sp5";
String units "organisms";
}
Anemone_sp6 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Anemone sp6 seen in image";
String long_name "Anemone Sp6";
String units "organisms";
}
Anemone_sp7 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Anemone sp7 seen in image";
String long_name "Anemone Sp7";
String units "organisms";
}
Tube_Anemone_sp_1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 4;
String bcodmo_name "count";
String description "number of Tube Anemone sp 1 seen in image";
String long_name "Tube Anemone Sp 1";
String units "organisms";
}
Holothurian_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Holothurian sp1 seen in image";
String long_name "Holothurian Sp1";
String units "organisms";
}
Holothurian_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Holothurian sp2 seen in image";
String long_name "Holothurian Sp2";
String units "organisms";
}
Holothurian_sp3 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Holothurian sp3 seen in image";
String long_name "Holothurian Sp3";
String units "organisms";
}
Holothurian_sp4 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 3;
String bcodmo_name "count";
String description "number of Holothurian sp4 seen in image";
String long_name "Holothurian Sp4";
String units "organisms";
}
Holothurian_sp5 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Holothurian sp5 seen in image";
String long_name "Holothurian Sp5";
String units "organisms";
}
Holothurian_sp6 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Holothurian sp6 seen in image";
String long_name "Holothurian Sp6";
String units "organisms";
}
Holothurian_sp7 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 5;
String bcodmo_name "count";
String description "number of Holothurian sp7 seen in image";
String long_name "Holothurian Sp7";
String units "organisms";
}
Holothurian_sp8 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 3;
String bcodmo_name "count";
String description "number of Holothurian sp8 seen in image";
String long_name "Holothurian Sp8";
String units "organisms";
}
Asteroid_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Asteroid sp1 seen in image";
String long_name "Asteroid Sp1";
String units "organisms";
}
Asteroid_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Asteroid sp2 seen in image";
String long_name "Asteroid Sp2";
String units "organisms";
}
Asteroid_sp3 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Asteroid sp3 seen in image";
String long_name "Asteroid Sp3";
String units "organisms";
}
Amphipod_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 16;
String bcodmo_name "count";
String description "number of Amphipod sp1 seen in image";
String long_name "Amphipod Sp1";
String units "organisms";
}
Amphipod_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 3;
String bcodmo_name "count";
String description "number of Amphipod sp2 seen in image";
String long_name "Amphipod Sp2";
String units "organisms";
}
Polychaete_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Polychaete sp1 seen in image";
String long_name "Polychaete Sp1";
String units "organisms";
}
Polychaete_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 3;
String bcodmo_name "count";
String description "number of Polychaete sp2 seen in image";
String long_name "Polychaete Sp2";
String units "organisms";
}
Polychaete_sp3 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Polychaete sp3 seen in image";
String long_name "Polychaete Sp3";
String units "organisms";
}
Polychaete_sp4 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Polychaete sp4 seen in image";
String long_name "Polychaete Sp4";
String units "organisms";
}
Polychaete_sp5 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Polychaete sp5 seen in image";
String long_name "Polychaete Sp5";
String units "organisms";
}
Polychaete_sp6 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Polychaete sp6 seen in image";
String long_name "Polychaete Sp6";
String units "organisms";
}
Polychaete_sp7 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Polychaete sp7 seen in image";
String long_name "Polychaete Sp7";
String units "organisms";
}
Stalked_Sponge_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Stalked Sponge sp1 seen in image";
String long_name "Stalked Sponge Sp1";
String units "organisms";
}
Crinoid_sp1 {
String bcodmo_name "count";
String description "number of Crinoid sp1 seen in image";
String long_name "Crinoid Sp1";
String units "organisms";
}
Crinoid_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Crinoid sp2 seen in image";
String long_name "Crinoid Sp2";
String units "organisms";
}
Shrimp_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Shrimp sp1 seen in image";
String long_name "Shrimp Sp1";
String units "organisms";
}
Isopod_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 1;
String bcodmo_name "count";
String description "number of Isopod sp1 seen in image";
String long_name "Isopod Sp1";
String units "organisms";
}
Medusazoa_sp1 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Medusazoa sp1 seen in image";
String long_name "Medusazoa Sp1";
String units "organisms";
}
Medusazoa_sp2 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Medusazoa sp2 seen in image";
String long_name "Medusazoa Sp2";
String units "organisms";
}
Medusazoa_sp3 {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 0;
String bcodmo_name "count";
String description "number of Medusazoa sp3 seen in image";
String long_name "Medusazoa Sp3";
String units "organisms";
}
Unknown_18_Xeno {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 7;
String bcodmo_name "count";
String description "number of Unknown 18 Xeno seen in image";
String long_name "Unknown 18 Xeno";
String units "organisms";
}
Unknown_6_Enteropnuest {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 2;
String bcodmo_name "count";
String description "number of Unknown 6 Enteropnuest seen in image";
String long_name "Unknown 6 Enteropnuest";
String units "organisms";
}
unknown_plant_material {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 3;
String bcodmo_name "count";
String description "number of unknown plant material seen in image";
String long_name "Unknown Plant Material";
String units "organisms";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
String acquisition_description
"The HROV Nereus was used to conduct exploration and characterization
(including downloading video seafloor transects) of the Kermadec Trench region
in May 2014.\\u00a0\\u00a0Geo-referenced vehicle navigation was conducted using
the R/V Thompson\\u2019s GPS launch position of the vehicle, the estimated
initial on bottom position of the vehicle, the course over ground (determined
by the Gyro heading, Doppler Velocity Profiler, and thruster speed).
The HROV transected between 1 and 5 meters off the seafloor, utilizing a down-
looking Sony 4k HD camera system, in collaboration with the Advanced Imaging
and Visualization Lab at the Woods Hole Oceanographic Institution.\\u00a0
Megafauna was enumerated via direct counts from continuous video. Taxonomic
identifications were based on comparison with published morphological
characters when possible.
Nereus transect video was annotated using CADTV version 11 software and geo-
referencing of continuous navigation was conducted via Matlab (2011 Release;
MathWorks, Inc.) and Microsoft Excel for Mac 14.7.3.\\u00a0
Summary of HADES-K Nereus dives:
Nereus Dive #
|
Date
|
Mission Depth (m)
|
Dive Duration (hrs:min)
|
# of Transects
|
Bottom Duration (hrs:min)
---|---|---|---|---|---
64
|
4/14/2014
|
4000
|
12:00
|
1
|
6:41
72
|
5/2/2014
|
6060
|
17:19
|
4
|
9:28
73
|
5/4/2014
|
7000
|
18:04
|
2
|
8:09
74
|
5/5/2014
|
8100
|
19:57
|
1
|
10:07
75
|
5/8/2014
|
9000
|
13:44
|
0
|
2:16
76
|
5/10/2014
|
10,000
|
11:54
|
2
|
6:28";
String awards_0_award_nid "536451";
String awards_0_award_number "OCE-1131620";
String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1131620";
String awards_0_funder_name "NSF Division of Ocean Sciences";
String awards_0_funding_acronym "NSF OCE";
String awards_0_funding_source_nid "355";
String awards_0_program_manager "David L. Garrison";
String awards_0_program_manager_nid "50534";
String cdm_data_type "Other";
String comment
"Nereus dive geo-referenced faunal transect data, Kermadec Trench
TV/Thompson cruise TN309
PI: T. Shank (WHOI)
version date: 2019-04-24
NOTE: Large dataset, slow to load in browser";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_email "info@bco-dmo.org";
String creator_name "BCO-DMO";
String creator_type "institution";
String creator_url "https://www.bco-dmo.org/";
String data_source "extract_data_as_tsv version 2.3 19 Dec 2019";
String date_created "2019-04-24T19:26:36Z";
String date_modified "2020-01-27T14:22:04Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.765656.1";
Float64 Easternmost_Easting 179.819213;
Float64 geospatial_lat_max -34.33940382;
Float64 geospatial_lat_min -37.73414749;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 179.819213;
Float64 geospatial_lon_min -178.9629002;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 8083.8;
Float64 geospatial_vertical_min 3997.2;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2024-11-08T06:16:55Z (local files)
2024-11-08T06:16:55Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_765656.das";
String infoUrl "https://www.bco-dmo.org/dataset/765656";
String institution "BCO-DMO";
String instruments_0_acronym "camera";
String instruments_0_dataset_instrument_nid "765669";
String instruments_0_description "All types of photographic equipment including stills, video, film and digital systems.";
String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/311/";
String instruments_0_instrument_name "Camera";
String instruments_0_instrument_nid "520";
String instruments_0_supplied_name "Sony 4k HD Imaging System with Deep-Sea Power and Light LED lights";
String instruments_1_acronym "HROV Nereus";
String instruments_1_dataset_instrument_nid "765664";
String instruments_1_description
"Nereus is an efficient, multi-purpose “hybrid” vehicle that can explore and operate in the crushing pressures of the greatest ocean depths. An unmanned vehicle, Nereus operates in two complementary modes. It can swim freely as an autonomous underwater vehicle (AUV) to survey large areas of the depths, map the seafloor, and give scientists a broad overview. When Nereus locates something interesting, the vehicle’s support team can bring the vehicle back on board the ship and transforms it into a remotely operated vehicle (ROV) tethered to the ship via a micro-thin, fiber-optic cable. Through this tether, Nereus can transmit high-quality, real-time video images and receive commands from skilled pilots on the ship to collect samples or conduct experiments with a manipulator arm.
Technical specifications:
\tWeight on land: 2,800 kg
\tPayload capacity: 25 kg
\tMaximum speed: 3 knots
\tBatteries: rechargable lithium ion, 15 kilowatt hours in two pressure housings
\tThrusters: 2 fore and aft, 2 vertical, 1 lateral (ROV mode) 2 fore and aft, 1 vertical (AUV mode)
\tLights: variable output LED array, strobes
\tManipulator arm: Kraft TeleRobotics 7-function hydraulic manipulator
\tSonar: scanning sonar, forward look and profile, 675 KHz
\tSensors: magnetometer, CTD (to measure conductivity, temperature, and depth)
Nereus supports a variety of science operations: Push coring, measuring heat flow, geotechnical and geochemical sensing, rock sampling and drilling, biological sampling, water sampling, high resolution acoustic bathymetry, and optical still and video imagery.
More information is available from the operator site at URL.";
String instruments_1_instrument_name "HROV Nereus";
String instruments_1_instrument_nid "706";
String keywords "altitude, amphipod, Amphipod_sp1, Amphipod_sp2, anemone, Anemone_sp1, Anemone_sp2, Anemone_sp3, Anemone_sp4, Anemone_sp5, Anemone_sp6, Anemone_sp7, asteroid, Asteroid_sp1, Asteroid_sp2, Asteroid_sp3, atmosphere, bco, bco-dmo, biological, chemical, COG, course, crinoid, Crinoid_sp1, Crinoid_sp2, data, dataset, date, depth, distance, Distance_x, Distance_y, dive, dmo, earth, Earth Science > Atmosphere > Altitude > Station Height, enteropnuest, erddap, ground, heading, height, holothurian, Holothurian_sp1, Holothurian_sp2, Holothurian_sp3, Holothurian_sp4, Holothurian_sp5, Holothurian_sp6, Holothurian_sp7, Holothurian_sp8, isopod, Isopod_sp1, latitude, longitude, management, material, medusazoa, Medusazoa_sp1, Medusazoa_sp2, Medusazoa_sp3, new, New_x, New_y, oceanography, office, ophiuroid, Ophiuroid_sp1, Ophiuroid_sp2, original, Original_x, Original_y, over, plant, polychaete, Polychaete_sp1, Polychaete_sp2, Polychaete_sp3, Polychaete_sp4, Polychaete_sp5, Polychaete_sp6, Polychaete_sp7, preliminary, science, shrimp, Shrimp_sp1, SOG, sp1, sp2, sp3, sp4, sp5, sp6, sp7, sp8, speed, sponge, stalked, Stalked_Sponge_sp1, start, station, Temp, temperature, time, time2, Time2_GMT, tube, Tube_Anemone_sp_1, Unknown_18_Xeno, Unknown_6_Enteropnuest, unknown_plant_material, xeno";
String keywords_vocabulary "GCMD Science Keywords";
String license "https://www.bco-dmo.org/dataset/765656/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/765656";
Float64 Northernmost_Northing -34.33940382;
String param_mapping "{'765656': {'Latitude': 'master - latitude', 'Depth': 'master - depth', 'Longitude': 'master - longitude'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/765656/parameters";
String people_0_affiliation "Woods Hole Oceanographic Institution";
String people_0_affiliation_acronym "WHOI";
String people_0_person_name "Timothy M. Shank";
String people_0_person_nid "536454";
String people_0_role "Principal Investigator";
String people_0_role_type "originator";
String people_1_affiliation "University of Hawaii at Manoa";
String people_1_affiliation_acronym "SOEST";
String people_1_person_name "Jeffrey C. Drazen";
String people_1_person_nid "491313";
String people_1_role "Co-Principal Investigator";
String people_1_role_type "originator";
String people_2_affiliation "Whitman College";
String people_2_person_name "Paul Yancey";
String people_2_person_nid "536477";
String people_2_role "Co-Principal Investigator";
String people_2_role_type "originator";
String people_3_affiliation "Woods Hole Oceanographic Institution";
String people_3_affiliation_acronym "WHOI BCO-DMO";
String people_3_person_name "Nancy Copley";
String people_3_person_nid "50396";
String people_3_role "BCO-DMO Data Manager";
String people_3_role_type "related";
String project "HADES";
String projects_0_acronym "HADES";
String projects_0_description
"Extracted from the NSF award abstract:
Severe technical challenges associated with the extremes of hydrostatic pressure have prevented major advances in hadal ecological studies, and relegated hadal systems to among the most poorly investigated habitats on Earth. Through this project, Hadal Ecosystems Studies (HADES) program, PIs will determine the composition and distribution of hadal species, the role of hadal pressures (piezolyte concentrations, enzyme function under pressure), food supply (distribution of POC with the abundance and biomass of trench organisms, and metabolic rates/energetic demand), and depth/topography (genetic divergence and spatial connectivity of populations) have on impacting deep-ocean community structure. This project will examine these factors using the world's first full-ocean depth hybrid remotely operated vehicle (HROV) in conjunction with the only full-ocean depth imaging lander (Hadal-Lander). This project will provide the first seafloor data and samples in one of the world's best, yet little known trenches- the Kermadec Trench (SW Pacific Ocean). Megafaunal community structure and the relationship between POC and benthic bacterial biomass will be examined as a function of depth and location by systematic high-definition imaging and sediment/faunal sampling transects from abyssal to full trench depths both along and perpendicular to the trench axis. Population genetic approaches will provide levels of genetic divergence and evolutionarily independent lineages to assess the role of depth and topography in trenches and their adjacent abyssal plain in promoting the formation of species. Physiological constraints will be investigated by examining in-situ respiration of selected fauna and tissue concentrations of such protein stabilizers as trimethylamine oxide (TMAO), and the structural adaptations of macromolecules.
Image of NEREUS Deployment Sites. [click on the image to view a larger version]";
String projects_0_end_date "2015-08";
String projects_0_geolocation "Kermadec Trench adjacent to New Zealand: approximately 37 12.75 S and 178 51.43 E to 31 51.29 S and 176 49.07 W";
String projects_0_name "Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography";
String projects_0_project_nid "536452";
String projects_0_project_website "https://www.whoi.edu/hades/";
String projects_0_start_date "2011-09";
String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
String publisher_type "institution";
String sourceUrl "(local files)";
Float64 Southernmost_Northing -37.73414749;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "Holothurian_sp5,Asteroid_sp2,Polychaete_sp5,Polychaete_sp6,Polychaete_sp7,Medusazoa_sp1,Medusazoa_sp2,Medusazoa_sp3";
String summary "Nereus dive geo-referenced megafaunal transect data from the Kermadec Trench during cruise TN309 on RV/Thompson, May 2014.";
String title "[HADES-K Nereus dives - geo-referenced megafauna counts] - Nereus dive geo-referenced megafaunal transect data from the Kermadec Trench during cruise TN309 on RV/Thompson, May 2014 (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)";
String version "1";
Float64 Westernmost_Easting -178.9629002;
String xml_source "osprey2erddap.update_xml() v1.3";
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.