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ERDDAP
Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Dissolved inorganic carbon and alkalinity of discrete water column samples, collected aboard Palmer LTER annual cruises of the Western Antarctic Peninsula, 1993, 2018. 
|
| Institution: | National Science Foundation (Dataset ID: CruiseDissolvedInorganicCarbon) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
study_name {
String cf_role "trajectory_id";
String column_name "studyName";
String comment "Cruise name";
String ioos_category "Identifier";
String long_name "Study";
}
event {
Int16 _FillValue 32767;
Int16 actual_range 1, 1311;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String column_name "col_541";
String comment "sequence of cruise happenings ordered by time";
String ioos_category "Statistics";
String long_name "Event Number";
String lter_mscale "interval";
String lter_num_type "real";
String lter_units_string "number";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
bottle {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 24;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String column_name "col_542";
String comment "reference number of sample bottle from rosette";
String ioos_category "Statistics";
String long_name "Bottle Number";
String lter_mscale "interval";
String lter_num_type "natural";
String lter_units_string "number";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
grid_station {
String column_name "col_543";
String comment "Palmer LTER grid station";
String ioos_category "Unknown";
String long_name "Station Name";
String lter_mscale "nominal";
}
cast_number {
Int16 _FillValue 32767;
Int16 actual_range 1, 134;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String column_name "col_5431";
String comment "reference number for ship-based over-the-side deployed and lowered instrumentation. FillValue denotes underway event.";
String ioos_category "Statistics";
String long_name "Cast";
String lter_mscale "nominal";
}
grid_line {
Float64 _FillValue NaN;
Float64 actual_range -156.31, 663.27;
String column_name "col_5432";
String comment "Line on pre-defined survey grid in the LTER Palmer study area";
String ioos_category "Unknown";
String long_name "Line";
String lter_mscale "nominal";
}
station {
Float64 _FillValue NaN;
Float64 actual_range -90.77, 808.66;
String column_name "col_5433";
String comment "Palmer LTER grid station";
String ioos_category "Identifier";
String long_name "Station";
String lter_mscale "nominal";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 7.264848e+8, 1.51674474e+9;
String axis "T";
String calendar "proleptic_gregorian";
String column_name "col_579";
String comment "date and time";
String ioos_category "Time";
String long_name "Datetime GMT";
String lter_mscale "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 -70.0883, -60.405;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String column_name "col_5434";
String comment "Latitude measured from the equator in decimal degrees, South is negative";
String ioos_category "Location";
String long_name "Latitude";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "º";
String lter_units_string "degree";
String standard_name "latitude";
String units "degrees_north";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -78.2083, -63.72267;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String column_name "col_5435";
String comment "Longitude measured from the Prime Meridian in decimal degrees, West is negative";
String ioos_category "Location";
String long_name "Longitude";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "º";
String lter_units_string "degree";
String standard_name "longitude";
String units "degrees_east";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 3700.0;
String axis "Z";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String column_name "col_544";
String comment "measurement or sample collection distance from water column surface";
String ioos_category "Location";
String long_name "Depth";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "m";
String lter_units_string "meter";
String positive "down";
String standard_name "depth";
String units "m";
String units_conventions "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
dissolved_inorganic_carbon1 {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -9.0, 2473.0;
String column_name "col_545";
String comment "Carbon in micromoles per kilogram";
String ioos_category "Unknown";
String long_name "DIC 1";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µmol/kg";
String lter_units_string "micromolePerKilogram";
String units "micromoles kg-1";
String units_conventions "ARC-LTER,CCE-LTER,MCR-LTER,PAL-LTER,SBC-LTER";
}
dissolved_inorganic_carbon2 {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 1881.2, 2406.7;
String column_name "col_546";
String comment "Carbon in micromoles per kilogram";
String ioos_category "Unknown";
String long_name "DIC 2";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µmol/kg";
String lter_units_string "micromolePerKilogram";
String units "micromoles kg-1";
String units_conventions "ARC-LTER,CCE-LTER,MCR-LTER,PAL-LTER,SBC-LTER";
}
alkalinity1 {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 10.0, 2446.6;
String column_name "col_547";
String comment "alkalinity";
String ioos_category "CO2";
String long_name "Alkalinity 1";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µEq/kg";
String lter_units_string "microEquivalentsPerKilogram";
String units_conventions "PAL-LTER";
}
alkalinity2 {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 2172.94795432617, 2401.87376725838;
String column_name "col_548";
String comment "alkalinity";
String ioos_category "CO2";
String long_name "Alkalinity 2";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µEq/kg";
String lter_units_string "microEquivalentsPerKilogram";
String units_conventions "PAL-LTER";
}
temperature {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -2.70869, 4.1692;
Float64 colorBarMaximum 40.0;
Float64 colorBarMinimum -10.0;
String column_name "col_5429";
String comment "in situ seawater temperature";
String ioos_category "Temperature";
String long_name "Temperature";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units_string "celcius";
String standard_name "sea_water_temperature`";
String units "degree_C";
String units_conventions "CDR-LTER";
}
salinity {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 29.634, 34.7383;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String column_name "col_5430";
String comment "in situ seawater salinity";
String ioos_category "Salinity";
String long_name "Salinity";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "PSU";
String lter_units_string "practicalSalinityUnit";
String standard_name "sea_water_practical_salinity";
String units "1";
String units_conventions "MCM-LTER,PAL-LTER";
}
notes {
String column_name "col_549";
String comment "text field to describe a log entry (ex. event log)";
String ioos_category "Unknown";
String long_name "Notes";
String lter_mscale "nominal";
}
}
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 "study_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_email "hducklow@ldeo.columbia.edu,dkarl@hawaii.edu";
String contributor_name "Hugh Ducklow,David Karl";
String contributor_role "PrincipalInvestigator,PrincipalInvestigator";
String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
String Conventions "CF-1.8, ACDD-1.3, COARDS";
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 "44";
String datazoo_datatable_id "44";
String datazoo_datatable_label "Dissolved Inorganic Carbon (Cruise)";
String datazoo_datatable_name "DissolvedInorganicCarbon";
String date_created "2021-05-07T19:41:15Z";
String date_issued "2021-05-07T19:41:15Z";
String defaultDataQuery "null";
String defaultGraphQuery "longitude%2Clatitude%2C&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff";
String doi "https://doi.org/10.6073/pasta/79378333f8ec409c56732042d1d9b7cb";
Float64 Easternmost_Easting -63.72267;
String featureType "Trajectory";
String geospatial_bounds_crs "EPSG:4326";
String geospatial_bounds_vertical_crs "EPSG:5831";
Float64 geospatial_lat_max -60.405;
Float64 geospatial_lat_min -70.0883;
String geospatial_lat_resolution "0.00001 degree";
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -63.72267;
Float64 geospatial_lon_min -78.2083;
String geospatial_lon_resolution "0.00001 degree";
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 3700.0;
Float64 geospatial_vertical_min 0.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"local files
2025-05-04T16:07:16Z (local files)
2025-05-04T16:07:16Z http://pallter-data.marine.rutgers.edu/erddap/tabledap/CruiseDissolvedInorganicCarbon.html";
String infoUrl "https://pal.lternet.edu/";
String institution "National Science Foundation";
String keywords "carbon, habitats, Inorganic Matter, inorganic nutrients, marine, measurements";
String keywords_vocabulary "LTER Controlled Vocabulary,LTER Core Areas";
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: Discrete samples (300 ml) from Niskin bottle casts preserved with 200 ul saturated HgCl2 solution, sealed and returned to the lab for analyses. Sampling, storage and analytical protocols\\nfollow the WOCE-JGOFS recommendations (Dickson and Goyet, 1994; Knap et al., 1994). The analyses are calibrated using standards provided by Andrew Dickson\\n(http://andrew.ucsd.edu/co2qc/index.html).\\n\\nFrom 1993-2002, samples were analyzed at the University of Hawaii by David Karl and Chris Carillo (Carrillo et al., 2004). The 2003-2004 samples were collected by Hugh Ducklow and analyzed at Lamont-Doherty by Taro Takahashi and John Goddard. Samples after 2004 are analyzed in the Ducklow lab.\\n\\nThe average standard deviation for replicate samples (two separate samples drawn from the same Niskin bottle) was 0.15% for 2003-2007. The analytical error for replicate analyses of the same sample was 0.06%.\\n\\nCarrillo, C.J., Smith, R.C., Karl, D.M., 2004. Processes regulating oxygen and carbon dioxide in surface waters west of the Antarctic Peninsula. Marine Chemistry 84 (3-4), 161-179.\\n\\nDickson, A.G., Goyet, C., 1994. Handbook of methods for the analysis of the various parameters of the carbon dioxide system in sea water.Version 2. ORNL/CDIAC, Oak Ridge TN.Knap, A., \\n\\nMichaels, A.F., Close, A., Ducklow, H.W., Dickson, A., 1994. Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements. Reprint of the IOC Manuals and Guides. UNESCO, Paris, p. vi+170.";
String naming_authority "edu.rutgers.rucool";
Float64 Northernmost_Northing -60.405;
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 -70.0883;
String standard_name_vocabulary "CF Standard Name Table v77";
String subsetVariables "study_name,grid_line,grid_station,station";
String summary "Dissolved inorganic carbon and alkalinity of discrete water column samples, collected aboard Palmer LTER annual cruises of the Western Antarctic Peninsula, 1993 - 2018. There is a temporal uncoupling between Antarctic phytoplankton and bacterial processes. This affects the coastal ecosystem carbon cycle. Our sampling strategy and experiments are designed to evaluate the hypotheses that this uncoupling is caused by:1) dissolved organic carbon - bacterial interactions,2) temperature effects, and 3) direct competition and chemical antagonism.";
String time_coverage_end "2018-01-23T21:59:00Z";
String time_coverage_start "1993-01-08T09:20:00Z";
String title "Dissolved inorganic carbon and alkalinity of discrete water column samples, collected aboard Palmer LTER annual cruises of the Western Antarctic Peninsula, 1993, 2018.";
Float64 Westernmost_Easting -78.2083;
}
}
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.