Easier access to scientific data
Brought to you by NOAA NMFS SWFSC ERD
|
ERDDAP
Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Zooplankton collected with a 1.4 m2 frame, 500-µm mesh Multiple Opening/ Closing Net and Environmental Sensing System (MOCNESS) aboard Palmer LTER annual cruises off the coast of the Western Antarctic Peninsula, 2009-2017 
|
| Institution: | Rutgers University (Dataset ID: CruiseZooplanktonAbundance) |
| Information: | Summary
| License
| FGDC
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
tow_start_datetime {
Float64 actual_range 1.23151926e+9, 1.48483044e+9;
String calendar "proleptic_gregorian";
String column_name "tow_start_datetime";
String comment "created by combiniing tow_start_date and tow_start_time";
String ioos_category "Time";
String long_name "MOCNESS start datetime";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
tow_end_datetime {
Float64 actual_range 1.2315246e+9, 1.48485048e+9;
String calendar "proleptic_gregorian";
String column_name "tow_end_datetime";
String comment "created by combiniing tow_start_date and tow_end_time";
String ioos_category "Time";
String long_name "MOCNESS end datetime";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -69.8516, -64.4374;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String column_name "col_6369";
String comment "Average latitude while individual MOCNESS net was open, measured from the equator in decimal degrees, South is negative";
String ioos_category "Location";
String long_name "Net Lat Avg";
String lter_units "dec degrees lat-lon";
String lter_units_string "decimal degrees latitude or longitude";
String standard_name "latitude";
String units "degrees_north";
String units_convention "AND-LTER,BNZ-LTER";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -76.3688, -64.1874;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String column_name "col_6370";
String comment "Average longitude while individual MOCNESS net was open, measured from the prime meridian in decimal degrees, West is negative";
String ioos_category "Location";
String long_name "Net Lon Avg";
String lter_units "dec degrees lat-lon";
String lter_units_string "decimal degrees latitude or longitude";
String standard_name "longitude";
String units "degrees_east";
String units_convention "AND-LTER,BNZ-LTER";
}
cruise_name {
String cf_role "trajectory_id";
String column_name "col_6345";
String comment "Name of research cruise where samples were collected";
String ioos_category "Unknown";
String long_name "Cruise Name";
}
grid_line {
Int16 _FillValue 32767;
Int16 actual_range 167, 607;
String column_name "col_6349";
String comment "Sampling line on a pre-defined survey grid in the Palmer LTER study area";
String ioos_category "Unknown";
String long_name "Grid Line";
}
grid_station {
Int16 _FillValue 32767;
Int16 actual_range 0, 200;
String column_name "col_6350";
String comment "Sampling station on a pre-defined survey grid in the Palmer LTER study area";
String ioos_category "Unknown";
String long_name "Grid Station";
}
amphipoda {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.32823;
String column_name "col_6384";
String comment "Amphipod numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "amphipoda";
Float64 missing_value -999.0;
}
cacutus {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 26.01473;
String column_name "col_6379";
String comment "Calanoides acutus numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "cacutus";
Float64 missing_value -999.0;
}
chaetognatha {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 3.48952;
String column_name "col_6377";
String comment "Chaetognath numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "chaetognatha";
Float64 missing_value -999.0;
}
cpropinquus {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 3.1895;
String column_name "col_6380";
String comment "Calanus propinquus numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "cpropinquus";
Float64 missing_value -999.0;
}
ecrystal {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 1.12586;
String column_name "col_6385";
String comment "Euphausia crystallorophias numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "ecrystal";
}
gymnosomata {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.49921;
String column_name "col_6375";
String comment "Gymnosome pteropod numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "gymnosomata";
Float64 missing_value -999.0;
}
lhelicina {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.63352;
String column_name "col_6374";
String comment "Limacina helicina antarctica numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "lhelicina";
Float64 missing_value -999.0;
}
mgerlachei {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 38.45506;
String column_name "col_6378";
String comment "Metridia gerlachei numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "mgerlachei";
Float64 missing_value -999.0;
}
ostracoda {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 9.38768;
String column_name "col_6383";
String comment "Ostracod numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "ostracoda";
Float64 missing_value -999.0;
}
pantarctica {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 1.21905;
String column_name "col_6382";
String comment "Paraeuchaeta antarctica numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "pantarctica";
Float64 missing_value -999.0;
}
rgigas {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.96525;
String column_name "col_6381";
String comment "Rhincalanus gigas numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "rgigas";
Float64 missing_value -999.0;
}
sthompsoni {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 1.77136;
String column_name "col_6387";
String comment "Salpa thompsoni numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "sthompsoni";
}
tmacrura {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 1.09638;
String column_name "col_6386";
String comment "Thysanoessa macrura numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "tmacrura";
}
tomopteris {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.13445;
String column_name "col_6376";
String comment "Tomopteris spp. polychaete numeric density";
String ioos_category "Zooplankton Abundance";
String long_name "tomopteris";
Float64 missing_value -999.0;
}
depth_min {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -6.57, 741.28;
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String column_name "col_6371";
String comment "Minimum net depth while open in meters";
String ioos_category "Location";
String long_name "Depth Min";
String lter_units "m";
String lter_units_string "meter";
String standard_name "depth";
String units "m";
String units_convention "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
depth_max {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 45.17, 987.63;
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String column_name "col_6372";
String comment "Maximum net depth while open in meters";
String ioos_category "Location";
String long_name "Depth Max";
String lter_units "m";
String lter_units_string "meter";
String standard_name "depth";
String units "m";
String units_convention "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
lat_start {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -69.8606, -64.486;
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String column_name "col_6354";
String comment "Latitude at start of MOCNESS tow, measured from the equator in decimal degrees, South is negative";
String ioos_category "Location";
String long_name "Lat Start";
String lter_units "dec degrees lat-lon";
String lter_units_string "decimal degrees latitude or longitude";
String standard_name "latitude";
String units "degrees_north";
String units_convention "AND-LTER,BNZ-LTER";
}
lat_end {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -69.8301, -64.4352;
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String column_name "col_6357";
String comment "Latitude at end of MOCNESS tow, measured from the equator in decimal degrees, South is negative";
String ioos_category "Location";
String long_name "Lat End";
String lter_units "dec degrees lat-lon";
String lter_units_string "decimal degrees latitude or longitude";
Float64 missing_value -999.0;
String standard_name "latitude";
String units "degrees_north";
String units_convention "AND-LTER,BNZ-LTER";
}
lon_start {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -76.4425, -64.3194;
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String column_name "col_6355";
String comment "Longitude at start of MOCNESS tow, measured from the prime meridian in decimal degrees, West is negative";
String ioos_category "Location";
String long_name "Lon Start";
String lter_units "dec degrees lat-lon";
String lter_units_string "decimal degrees latitude or longitude";
String standard_name "longitude";
String units "degrees_east";
String units_convention "AND-LTER,BNZ-LTER";
}
lon_end {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -76.2062, -64.1764;
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String column_name "col_6358";
String comment "Longitude at end of MOCNESS tow, measured from the prime meridian in decimal degrees, West is negative";
String ioos_category "Location";
String long_name "Lon End";
String lter_units "dec degrees lat-lon";
String lter_units_string "decimal degrees latitude or longitude";
Float64 missing_value -999.0;
String standard_name "longitude";
String units "degrees_east";
String units_convention "AND-LTER,BNZ-LTER";
}
cruise_tow {
Int32 _FillValue 2147483647;
Int32 actual_range 170013, 250084;
String column_name "col_6344";
String comment "Index number for net tows across research cruises";
String ioos_category "Unknown";
String long_name "Cruise Tow";
}
event {
Int32 _FillValue 2147483647;
Int32 actual_range 10, 519;
String column_name "col_6346";
String comment "Incrementing number assigned to all sampling events during a single cruise";
String ioos_category "Unknown";
String long_name "event";
}
net {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 8;
String column_name "col_6348";
String comment "Incrementing number assigned to individual net samples within a single MOCNESS tow";
String ioos_category "Unknown";
String long_name "net";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.231521113e+9, 1.484849285e+9;
String axis "T";
String calendar "proleptic_gregorian";
String column_name "col_6367";
String comment "GMT date and time when individual MOCNESS net opened";
String ioos_category "Time";
String long_name "Net Datetime Min";
String source_name "net_datetime_min";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
net_datetime_max {
Float64 actual_range 1.231521396e+9, 1.484850497e+9;
String calendar "proleptic_gregorian";
String column_name "col_6368";
String comment "GMT date and time when individual MOCNESS net closed";
String ioos_category "Time";
String long_name "Net Datetime Max";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
net_depth_start {
Int16 _FillValue 32767;
Int16 actual_range 50, 1000;
String column_name "col_6364";
String comment "Depth where individual MOCNESS net opened in meters";
String ioos_category "Location";
String long_name "Net Depth Start";
String lter_units "m";
String lter_units_string "meter";
String units "m";
String units_convention "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
net_depth_end {
Int16 _FillValue 32767;
Int16 actual_range 0, 750;
String column_name "col_6365";
String comment "Depth where individual MOCNESS net closed in meters";
String ioos_category "Location";
String long_name "Net Depth End";
String lter_units "m";
String lter_units_string "meter";
String units_convention "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
net_sample_id {
Int32 _FillValue 2147483647;
Int32 actual_range 1700131, 2500848;
String column_name "col_6343";
String comment "Unique index number for individual MOCNESS net samples across research cruises";
String ioos_category "Identifier";
String long_name "ctnid";
}
study_id {
Int16 _FillValue 32767;
Int16 actual_range 1663, 1825;
String column_name "col_6388";
String comment "Source ID";
String ioos_category "Identifier";
String long_name "sid";
}
target_depth {
String column_name "col_6363";
String comment "Depth range of sample collection for entire MOCNESS tow in meters";
String ioos_category "Location";
String long_name "Target Depth";
String lter_units_string "meters";
String units_convention "BNZ-LTER";
}
time_open {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 2.0, 51.5;
String column_name "col_6366";
String comment "Length of time that individual MOCNESS net was open in minutes";
String ioos_category "Time";
String long_name "Time Open";
String lter_units "min";
String lter_units_string "minute";
Float64 missing_value -999.0;
String units_convention "EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
tow_duration {
Int16 _FillValue 32767;
Int16 actual_range 80, 334;
String column_name "col_6359";
String comment "MOCNESS tow duration in minutes";
String ioos_category "Unknown";
String long_name "Tow Duration";
String lter_units "min";
String lter_units_string "minute";
String units_convention "EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
tow_number {
Int16 _FillValue 32767;
Int16 actual_range 1, 129;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String column_name "col_6347";
String comment "Incrementing number assigned to net tows during a single cruise";
String ioos_category "Statistics";
String long_name "tow";
}
vol_filtered_max {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 127.607, 2230.931;
String column_name "col_6373";
String comment "Water volume filtered through net mouth in cubic meters";
String ioos_category "Unknown";
String long_name "Vol Filtered Max";
String lter_units "m³";
String lter_units_string "cubicMeter";
String units_convention "AND-LTER,EML-2.0.1,EML-2.1.0,LUQ-LTER,SGS-LTER";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Int16 _FillValue 32767;
Int16 actual_range 211, 3705;
String axis "Z";
Float64 colorBarMaximum 5000.0;
Float64 colorBarMinimum 0.0;
String colorBarPalette "TopographyDepth";
String column_name "col_6360";
String comment "Depth of seafloor at start of MOCNESS tow in meters";
String ioos_category "Location";
String long_name "Water Depth";
String lter_units "m";
String lter_units_string "meter";
String positive "down";
String source_name "water_depth";
String standard_name "depth";
String units "m";
String units_convention "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
wind_speed {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 29.0;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String column_name "col_6361";
String comment "Wind speed in nautical miles per hour";
String ioos_category "Wind";
String long_name "Wind Speed";
String lter_units "nm/h";
String lter_units_string "nauticalMilePerHour";
String standard_name "wind_speed";
String units "nm h-1";
String units_convention "CCE-LTER";
}
wind_direction {
Int16 _FillValue 32767;
Int16 actual_range 0, 350;
Float64 colorBarMaximum 360.0;
Float64 colorBarMinimum 0.0;
String column_name "col_6362";
String comment "Wind direction in degrees";
String ioos_category "Wind";
String long_name "Wind Direction";
String lter_units_string "compass degrees";
String standard_name "wind_from_direction";
String units "degree";
String units_convention "BNZ-LTER";
}
}
NC_GLOBAL {
String _NCProperties "version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.6";
String acknowledgement "Funding and support provided by the National Science Foundation";
String cdm_data_type "Trajectory";
String cdm_trajectory_variables "cruise_name";
String comment "The Palmer, Antarctica, Long-Term Ecological Research project is a member site of the Long-Term Ecological Research program, a network of sites investigating diverse biomes. A team of researchers seeks to understand the structure and function of the Western Antarctic Peninsula's marine and terrestrial ecosystems in the context of seasonal-to-interannual atmospheric and sea ice dynamics, as well as long-term climate change. The PAL measurement system (or grid) is designed to study marine and terrestrial food webs consisting principally of diatom primary producers, the dominant herbivore Antarctic krill, and the apex predator Adelie penguin. An attenuated microbial food web is also a focus. PAL studies these ecosystems annually over a regional scale grid of oceanographic stations and seasonally at Palmer Station. \\n\\nPalmer Station is located on Anvers Island west of the Antarctic Peninula. The peninsula runs perpendicular to a strong climatic gradient between the cold, dry continental regime to the south, characteristic of the Antarctic interior, and the warm, moist, maritime regime to the north. North-south shifts in the gradient give rise to large environmental variability to climate change. Sea ice extent and variability affects ecosystem changes at all trophic levels. In addition to the long-term field and research activities, information management, graduate student training, education and outreach are an integral part of the program.";
String contributor_name "Jack Conroy";
String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
String Conventions "CF-1.8, ACDD-1.3";
String creator_country "USA";
String creator_email "kerfoot@marine.rutgers.edu";
String creator_institution "Rutgers University";
String creator_name "John Kerfoot";
String creator_sector "academic";
String creator_type "person";
String creator_url "https://rucool.marine.rutgers.edu";
String datazoo_dataset_id "308";
String datazoo_datatable_id "319";
String datazoo_datatable_label "Depth-discrete Zooplankton Density";
String defaultDataQuery "null";
Float64 Easternmost_Easting -64.1874;
String featureType "Trajectory";
String geospatial_bounds_crs "EPSG:4326";
String geospatial_bounds_vertical_crs "EPSG:5831";
Float64 geospatial_lat_max -64.4374;
Float64 geospatial_lat_min -69.8516;
String geospatial_lat_resolution "0.00001 degree";
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -64.1874;
Float64 geospatial_lon_min -76.3688;
String geospatial_lon_resolution "0.00001 degree";
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 3705.0;
Float64 geospatial_vertical_min 211.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"local files
2025-05-04T14:01:07Z (local files)
2025-05-04T14:01:07Z http://pallter-data.marine.rutgers.edu/erddap/tabledap/CruiseZooplanktonAbundance.html";
String infoUrl "https://pal.lternet.edu/";
String instrument_vocabulary "NASA/GCMD Instrument Keywords Version 8.5";
String keywords "krill, marine, oceans, organic matter, plankton, populations, salps, taxonomy, zooplankton";
String keywords_vocabulary "NASA/GCMD Earth Sciences Keywords Version 8.5";
String license "All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/). In accordance with scientific publishing conventions and professional etiquette, the consumer of these data (the “Data User”) is expected to appropriately cite these data in any publication that results from their use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur and should realize that misinterpretation of data may occur if used out of context of the original study. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the data authors. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available “as is.” The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.";
String license_link "https://lternet.edu/data-access-policy/";
String methods "General Methods: A 1.4 m2 frame, 500-μm mesh Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) was used to collect meso- and macrozooplankton in discrete depth intervals during 2009-2017. Paired day and night MOCNESS tows were conducted at each PAL LTER process study station on annual research cruises. Eight discrete depth intervals were typically sampled during the upcast as follows: 500-400, 400-300, 300-250, 250-200, 200-150, 150-100, 100-50, and 50-0 m. Occasionally, the deeper intervals were not sampled when towing in waters shallower than the deep target depths or depth intervals were combined due to net sampling errors. A pair of day and night tows reaching a maximum depth of 1000 m was also carried out over the continental slope in 2017. Tow-yo casts were conducted at one station in 2009, such that intervals from 150-0 m were each sampled twice on a single MOCNESS cast. Volume filtered for each depth interval was estimated using a flow meter mounted on the MOCNESS. All euphausiids and salps collected in MOCNESS tows were identified and quantified at sea. Samples were then preserved in sodium borate-buffered 4% formaldehyde for later taxonomic analysis of non-euphausiid and salp taxa. Samples were size-fractionated using a 5-mm mesh, with all individuals in this larger size fraction identified and counted. At least 1/64 of the < 5-mm size-fraction was counted under a stereo dissecting microscope after dividing the sample with a Folsom plankton splitter. A minimum of 100 individuals of the most abundant taxon was enumerated in this smaller size fraction. Further description is available in the following paper: Conroy, J. A., D. K. Steinberg, P. S. Thibodeau, O. Schofield. Zooplankton diel vertical migration during Antarctic summer. Deep-Sea Research Part I. 2020. https://doi.org/10.1016/j.dsr.2020.103324. Abundance (individuals m-3) was determined for common taxa. Data includes tow location, time, depth, and volume of water filtered by the net. Taxa include: Lhelicina = Limacina helicina antarctica; Gymnosomata = gymnosome pteropods; Tomopteris = Tomopteris spp. polychaetes; Chaetognatha = Chaetognatha; Mgerlachei = Metridia gerlachei; Cacutus = Calanoides acutus; Cpropinquus = Calanus propinquus; Rgigas = Rhincalanus gigas; Pantarctica = Paraeuchaeta antarctica; Ostracoda = Ostracoda; Amphipoda = Amphipoda; Ecrystal = Euphausia crystallorophias; Tmacrura = Thysanoessa macrura; Sthompsoni = Salpa thompsoni. NA abundance values indicate the sample was not quantitatively analyzed for that taxonomic group.";
String naming_authority "edu.rutgers.rucool";
Float64 Northernmost_Northing -64.4374;
String platform_vocabulary "NASA/GCMD Platforms Keywords Version 8.5";
String product_version "1.0";
String program "LTER";
String project "Palmer LTER";
String publisher_country "USA";
String publisher_email "kerfoot@marine.rutgers.edu";
String publisher_institution "Rutgers University";
String publisher_name "John Kerfoot";
String publisher_type "person";
String publisher_url "https://rucool.marine.rutgers.edu";
String references "https://pal.lternet.edu/";
String sea_name "Southern Ocean";
String source "local files";
String sourceUrl "(local files)";
Float64 Southernmost_Northing -69.8516;
String standard_name_vocabulary "CF Standard Name Table v27";
String subsetVariables "cruise_name,grid_line,grid_station";
String summary "Zooplankton are a morphologically and taxonomically diverse group of animals. Many zooplankton feed on phytoplankton in surface waters and thus provide a link between primary producers and higher trophic levels. Other zooplankton reside in the mesopelagic zone and feed on detritus or on other animals. Depth-discrete density of zooplankton taxa was determined at process study stations on the annual Palmer LTER cruises along the western Antarctic Peninsula. Samples were collected with a 1.4-m2 frame, 500-μm mesh Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) towed obliquely to the surface from a depth of typically 500 m. MOCNESS tows were conducted in consecutive day-night pairs at each process study station. Zooplankton depth distributions vary between day and night as these animals conduct diel vertical migrations. Depth distributions also vary among zooplankton taxa based on species feeding ecology and life history traits. Zooplankton diel vertical migration contributes to the export of carbon and nutrients from the surface ocean to the mesopelagic zone.";
String time_coverage_end "2017-01-19T18:08:05Z";
String time_coverage_start "2009-01-09T17:11:53Z";
String title "Zooplankton collected with a 1.4 m2 frame, 500-µm mesh Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) aboard Palmer LTER annual cruises off the coast of the Western Antarctic Peninsula, 2009-2017";
Float64 Westernmost_Easting -76.3688;
}
}
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.