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Dataset Title:  Alongtrack data collected continuously by the ship's underway acquisition
system from ARSV Laurence M. Gould cruise LMG1110 in the Southern Ocean in 2011
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_3636)
Range: longitude = -69.3806 to -53.5462°E, latitude = -65.0827 to -52.7606°N
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  yrday {
    Int16 _FillValue 32767;
    Int16 actual_range 307, 335;
    String description "Jan. 1 = yrday 0. GMT day and decimal time, as 325.5 for the 326th day of the year, or November 22 at 1200 hours (noon). Values derived from the \"date\" field.";
    String ioos_category "Unknown";
    String long_name "Yrday";
    String units "integer";
  }
  month_gmt {
    Byte _FillValue 127;
    Byte actual_range 11, 12;
    String description "Month, GMT.  Values derived from the \"date\" field.";
    String ioos_category "Time";
    String long_name "Month Gmt";
    String units "mm";
  }
  day_gmt {
    String description "Day, GMT.  Values derived from the \"date\" field.";
    String ioos_category "Time";
    String long_name "Day Gmt";
    String units "dd";
  }
  date {
    String description 
"day, month, year (GMT time) e.g. 26/11/11.
Name changed from \"GMT date\" to \"date\" during data processing.  Format is dd/mm/yy.";
    String ioos_category "Time";
    String long_name "Date";
    String units "dd/mm/yy";
  }
  year {
    Int16 _FillValue 32767;
    Int16 actual_range 2011, 2011;
    String description "year in yyyy format";
    String ioos_category "Time";
    String long_name "Year";
    String units "unitless";
  }
  time_gmt {
    String description "Time GMT, 24 hour clock.  Name changed from \"GMT time\" to \"time_gmt\" during data processing.  Values converted from hh:mm:ss format to hhmm.ss format.";
    String ioos_category "Time";
    String long_name "Time Gmt";
    String units "decimal hours";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range -65.0827, -52.7606;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude, negative = South. Name changed from \"PCOD latitude\" to \"lat\" during data processing.";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -69.3806, -53.5462;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude, negative = West. Name changed from \"PCOD longitude\" to \"lon\" during data processing.";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sog {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 15.9;
    String description "Speed over ground. Name changed from \"Ships speed\" to \"sog\" during data processing.";
    String ioos_category "Currents";
    String long_name "Speed Over Ground";
    String units "knots";
  }
  gps_hdop {
    Float32 _FillValue NaN;
    Float32 actual_range 0.68, 2.34;
    String description "Horizontal Dilution of Position is an indicator of the precision of the GPS measurement.  The lower the number, the more precise the position. Name changed from \"GPS HDOP\" to \"gps_hdop\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Gps Hdop";
    String units "-";
  }
  head {
    Float32 _FillValue NaN;
    Float32 actual_range 0.04, 360.0;
    String description "The ship's heading, measured by the Gyroscope.  Name changed from \"Gyro Heading\" to \"head\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Head";
    String units "Degrees(azimuth)";
  }
  cog {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 360.0;
    String description "Course over ground.  Name changed from \"Course over ground\" to \"cog\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Course Over Ground";
    String units "Degrees(azimuth)";
  }
  PAR_mast {
    String description "Downwelled Photosynthetically Available Radiation 400-700nm (PAR), sensor package mounted on ship's science mast.  Name changed from \"Mast PAR\" to \"PAR_mast\" during data processing.";
    String ioos_category "Optical Properties";
    String long_name "PAR Mast";
    String units "uE/m2/sec";
  }
  temp_ss {
    Float32 _FillValue NaN;
    Float32 actual_range -1.73, 9.85;
    String description "Sea surface temperature. Name changed from \"Sea surface temperature\" to \"temp_ss\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Temp Ss";
    String units "degrees C";
  }
  sal_ss {
    Float32 _FillValue NaN;
    Float32 actual_range 0.04, 34.44;
    String description "Sea surface salinity.  Name changed from \"Sea surface salinity\" to \"sal_ss\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Sal Ss";
    String units "PSU";
  }
  depth_w {
    Int16 _FillValue 32767;
    Int16 actual_range 31, 4988;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Sea depth, uncorrected, calc. sw sound vel. 1500 m/s.  Name changed from \"Sea depth\" to \"depth_w\" during data processing.";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
    String units "m";
  }
  wind_speed {
    Float32 _FillValue NaN;
    Float32 actual_range 0.03, 28.05;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String description "Wind speed (true, port windbird). Name changed from \"True wind speed\" to \"wind_speed\" during data processing.";
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String units "meters/sec";
  }
  wind_dir {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 360.0;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String description "Wind direction (true, port windbird).  Name changed from \"True wind direction\" to \"wind_dir\" during data processing.";
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String units "degrees(azimuth)";
  }
  temp_air {
    Float32 _FillValue NaN;
    Float32 actual_range -3.33, 11.66;
    String description "Ambient air temperature. Name changed from \"Ambient air temperature\" to \"temp_air\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Temp Air";
    String units "degrees C";
  }
  rel_hum {
    Float32 _FillValue NaN;
    Float32 actual_range -9.99, 101.8;
    String description "Relative humidity. Name changed from \"Relative humidity\" to \"rel_hum\" during data processing.";
    String ioos_category "Unknown";
    String long_name "Rel Hum";
    String units "%";
  }
  air_press {
    Float32 _FillValue NaN;
    Float32 actual_range 956.86, 1007.26;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String description "Barometric pressure.  Name changed from \"barometric pressure\" to \"air_press\" during data processing.";
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String units "milliBars";
  }
  fluor_ss {
    Float64 _FillValue NaN;
    String description "Sea surface fluorometry.  Name changed from \"Sea surface fluorometry\" to \"fluor_ss\" during data processing.";
    String ioos_category "Optical Properties";
    String long_name "Fluor Ss";
    String units "volts (0-5 FSO)";
  }
  PSP {
    String description "Short wave radiation, using a Precision Spectral Pyranometer.";
    String ioos_category "Unknown";
    String long_name "PSP";
    String units "watts/meters2";
  }
  PIR {
    Float32 _FillValue NaN;
    Float32 actual_range -36.34, 17.75;
    String description "Long wave radiation, using a Precision Infrared Radiometer.";
    String ioos_category "Unknown";
    String long_name "PIR";
    String units "watts/meters2";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description 
"The LMG alongtrack data acquisition systems continuously log data from a suite
of instruments throughout the cruise.\\u00a0
 
For information about events and known problems with acquisition, see the
[Cruise Data Report](\\\\\"http://data.bco-
dmo.org/LMG11-10/Cruise_Data_Report.DOC\\\\\").";
    String awards_0_award_nid "54892";
    String awards_0_award_number "ANT-1044982";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1044982";
    String awards_0_funder_name "NSF Antarctic Sciences";
    String awards_0_funding_acronym "NSF ANT";
    String awards_0_funding_source_nid "369";
    String awards_0_program_manager "Dr Peter Milne";
    String awards_0_program_manager_nid "51468";
    String cdm_data_type "Other";
    String comment 
"LMG1110 Alongtrack data 
   A.Bucklin, Chief Scientist 
   version: 2012-04-02";
    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 2.2d  13 Jun 2019";
    String date_created "2012-04-02T19:02:04Z";
    String date_modified "2016-10-10T15:32:58Z";
    String defaultDataQuery "&time";
    String doi "10.1575/1912/bco-dmo.661343";
    Float64 Easternmost_Easting -53.5462;
    Float64 geospatial_lat_max -52.7606;
    Float64 geospatial_lat_min -65.0827;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -53.5462;
    Float64 geospatial_lon_min -69.3806;
    String geospatial_lon_units "degrees_east";
    String history 
"2019-06-25T09:25:30Z (local files)
2019-06-25T09:25:30Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_3636.das";
    String infoUrl "https://www.bco-dmo.org/dataset/3636";
    String institution "BCO-DMO";
    String instruments_0_acronym "PAR sensor";
    String instruments_0_dataset_instrument_description "Biosph. Instr. QSR-240P";
    String instruments_0_dataset_instrument_nid "5585";
    String instruments_0_description "A PAR sensor measures photosynthetically available (or active) radiation.  The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis.  This instrument name is used when specific type, make and model are not known.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/122/";
    String instruments_0_instrument_name "Photosynthetically Available Radiation Sensor";
    String instruments_0_instrument_nid "439";
    String instruments_0_supplied_name "Photosynthetically Available Radiation Sensor";
    String instruments_10_acronym "WL CSTAR Trans";
    String instruments_10_dataset_instrument_description "Wet Labs C-Star 25 cm deep.� For more information, see the spec sheet.";
    String instruments_10_dataset_instrument_nid "5593";
    String instruments_10_description "A highly integrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The instrument is capable of either free space measurements, or through the use of an optical flow tube, flow-through sampling with a pump. It can be used in profiling, moored, or underway applications. more information from Wet Labs";
    String instruments_10_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/";
    String instruments_10_instrument_name "Wet Labs CSTAR Transmissometer";
    String instruments_10_instrument_nid "593";
    String instruments_10_supplied_name "Wet Labs CSTAR Transmissometer";
    String instruments_11_acronym "Water Temp Sensor";
    String instruments_11_dataset_instrument_description "SeaBird 38 Digital Remote Thermometer used to measure sea surface temperature.� For further information, see the spec sheet.";
    String instruments_11_dataset_instrument_nid "5641";
    String instruments_11_description "General term for an instrument that measures the temperature of the water with which it is in contact (thermometer).";
    String instruments_11_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/134/";
    String instruments_11_instrument_name "Water Temperature Sensor";
    String instruments_11_instrument_nid "647";
    String instruments_11_supplied_name "Thermometer";
    String instruments_12_acronym "Gyro";
    String instruments_12_dataset_instrument_description "Raytheon Anschutz gyro.";
    String instruments_12_dataset_instrument_nid "5672";
    String instruments_12_description "Compass with a motorized gyroscope that tracks true north (heading).";
    String instruments_12_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0079/";
    String instruments_12_instrument_name "Gyro";
    String instruments_12_instrument_nid "655";
    String instruments_12_supplied_name "Gyro";
    String instruments_1_acronym "Radiometer";
    String instruments_1_dataset_instrument_description "Biosh. Inst. GUV-2511.� For more information, search on \"GUV Series\" at Biospherical Instruments.";
    String instruments_1_dataset_instrument_nid "5594";
    String instruments_1_description "Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column.  For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc).  This is a generic term used when specific type, make and model were not specified.";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/122/";
    String instruments_1_instrument_name "Radiometer";
    String instruments_1_instrument_nid "442";
    String instruments_1_supplied_name "Radiometer";
    String instruments_2_acronym "Anemometer";
    String instruments_2_dataset_instrument_description "Gill Ultrasonic Wind Observer II; provided continuous measurement of port wind speed and direction.� Further informaiton is in the instrument datasheet.";
    String instruments_2_dataset_instrument_nid "5588";
    String instruments_2_description "An anemometer is a device for measuring the velocity or the pressure of the wind. It is commonly used to measure wind speed.  Aboard research vessels, it is often mounted with other meteorological instruments and sensors.";
    String instruments_2_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/101/";
    String instruments_2_instrument_name "Anemometer";
    String instruments_2_instrument_nid "481";
    String instruments_2_supplied_name "Anemometer";
    String instruments_3_acronym "Barometer";
    String instruments_3_dataset_instrument_description "R.M. Young 61201";
    String instruments_3_dataset_instrument_nid "5589";
    String instruments_3_description "A barometer is an instrument used to measure atmospheric pressure.  There are many types of barometers identified by make and model and method of measurement.";
    String instruments_3_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0281/";
    String instruments_3_instrument_name "Barometer";
    String instruments_3_instrument_nid "482";
    String instruments_3_supplied_name "Barometer";
    String instruments_4_acronym "Eppley PSP";
    String instruments_4_dataset_instrument_description "Eppley PSP; measures shortwave radiation";
    String instruments_4_dataset_instrument_nid "5591";
    String instruments_4_description 
"This radiometer measures sun and sky irradiance in the range of wavelengths 0.285 to 2.8 microns, including most of the solar spectrum. The PSP is intended to weight the energy flux in all wavelengths equally. It is a \"hemispheric receiver\" intended to approximate the
cosine response for oblique rays. The Eppley Precision Spectral Pyranometer (PSP) is primarily used where high accuracy is required or where it is used to calibrate other pyranometers.  The PSP outputs a low level voltage ranging from 0 to a maximum of about 12mV depending on sensor calibration and  radiation level.   An instruction manual provided by Eppley contains the sensor calibration constant and serial number.  The Precision Spectral Pyranometer is a World Meteorological Organization First Class Radiometer and comes with a calibration certificate traceable to the World Radiation Reference and a temperature compensation curve.  More information is available from Eppley Labs.";
    String instruments_4_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/112/";
    String instruments_4_instrument_name "Precision Spectral Pyranometer";
    String instruments_4_instrument_nid "483";
    String instruments_4_supplied_name "Precision Spectral Pyranometer";
    String instruments_5_acronym "Fluorometer";
    String instruments_5_dataset_instrument_description "WET Labs ECO-FL (Serial Number FLRTD-399); provides continuous operation when powered, with 6,000-m depth rating.� Further information about this instrument is in the user's guide.";
    String instruments_5_dataset_instrument_nid "5587";
    String instruments_5_description "A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.";
    String instruments_5_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/113/";
    String instruments_5_instrument_name "Fluorometer";
    String instruments_5_instrument_nid "484";
    String instruments_5_supplied_name "Fluorometer";
    String instruments_6_acronym "Hygrometer";
    String instruments_6_dataset_instrument_description "Model: R.M. Young 41372LC;� Probe used to measure Air Temp and Relative Humidity on LMG1110 cruise.� Calibrated range: -50 to 50 degrees C. More information on this instrument is available from Campbell Scientific.";
    String instruments_6_dataset_instrument_nid "5592";
    String instruments_6_description "Hygrometers are used for measuring relative humidity.  This term is used when details of the make, model number and measurement principle are not known.";
    String instruments_6_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0282/";
    String instruments_6_instrument_name "Hygrometer";
    String instruments_6_instrument_nid "485";
    String instruments_6_supplied_name "Hygrometer";
    String instruments_7_acronym "Eppley PIR";
    String instruments_7_dataset_instrument_description "Eppley PIR; measures longwave radiation";
    String instruments_7_dataset_instrument_nid "5590";
    String instruments_7_description "The Eppley Precision Infrared Radiometer (PIR) pyrgeometer measures longwave (infrared) radiation. It is housed in a weatherproof titanium canister that has been painted with a very flat black paint that absorbs radiation. A small glass dome at the top of the instrument is covered with an 'interference coating' which allows only infrared radiation to come through. Light levels are detected as temperature changes creating voltages in fine wire coil detectors.  more from Eppley Labs";
    String instruments_7_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0083/";
    String instruments_7_instrument_name "Eppley Longwave Radiometer";
    String instruments_7_instrument_nid "517";
    String instruments_7_supplied_name "Eppley Longwave Radiometer";
    String instruments_8_acronym "GPS";
    String instruments_8_dataset_instrument_description "Trimble 20636-00SM, Seapath 330, Garmin 17";
    String instruments_8_dataset_instrument_nid "5583";
    String instruments_8_description "The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis. The U.S. Air Force develops, maintains, and operates the space and control segments of the NAVSTAR GPS transmitter system. Ships use a variety of receivers (e.g. Trimble and Ashtech) to interpret the GPS signal and determine accurate latitude and longitude.";
    String instruments_8_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/POS03/";
    String instruments_8_instrument_name "Global Positioning System Receiver";
    String instruments_8_instrument_nid "560";
    String instruments_8_supplied_name "Global Positioning System Receiver";
    String instruments_9_acronym "MicroTSG";
    String instruments_9_dataset_instrument_description "SeaBird 45; used for continuous measure of salinity.� For further information, see the spec sheet.";
    String instruments_9_dataset_instrument_nid "5586";
    String instruments_9_description "An externally powered, high-accuracy instrument, designed for shipboard determination of sea surface (pumped-water) conductivity and temperature. Salinity and sound velocity can also be computed.";
    String instruments_9_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/133/";
    String instruments_9_instrument_name "MicroTSG Thermosalinograph";
    String instruments_9_instrument_nid "583";
    String instruments_9_supplied_name "MicroTSG Thermosalinograph";
    String keywords "air, air_press, air_pressure, altimetry, atmosphere, atmospheric, available, bco, bco-dmo, biological, chemical, cog, course, currents, data, dataset, date, day, day_gmt, depth, depth_w, direction, dmo, earth, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, erddap, fluor, fluor_ss, global, gps, gps_hdop, ground, hdop, head, hum, laboratory, latitude, level, longitude, management, mast, measurements, month, month_gmt, oceanography, office, optical, optical properties, over, par, PAR_mast, photosynthetically, pir, positioning, preliminary, pressure, properties, psp, radiation, rel, rel_hum, sal, sal_ss, satellite, science, sea, sog, speed, static, surface, system, temp_air, temp_ss, temperature, time, time_gmt, wind, wind_dir, wind_from_direction, wind_speed, winds, year, yrday";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String metadata_source "https://www.bco-dmo.org/api/dataset/3636";
    Float64 Northernmost_Northing -52.7606;
    String param_mapping "{'3636': {'lat': 'master - latitude', 'lon': 'master - longitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/3636/parameters";
    String people_0_affiliation "University of Connecticut";
    String people_0_affiliation_acronym "UConn";
    String people_0_person_name "Dr Ann Bucklin";
    String people_0_person_nid "50389";
    String people_0_role "Chief Scientist";
    String people_0_role_type "originator";
    String people_1_affiliation "Woods Hole Oceanographic Institution";
    String people_1_affiliation_acronym "WHOI BCO-DMO";
    String people_1_person_name "Shannon Rauch";
    String people_1_person_nid "51498";
    String people_1_role "BCO-DMO Data Manager";
    String people_1_role_type "related";
    String project "Population ecology of Salpa thompsoni based on molecular indicators";
    String projects_0_acronym "Salp_Antarctic";
    String projects_0_description 
"The Antarctic salp, Salpa thompsoni, is an increasingly important player in the vulnerable Antarctic Peninsula pelagic ecosystem. Observations of high abundance of Salpa thompsoni during the summer in the Southern Ocean suggest that this species is capable of rapid somatic and population growth, and frequently forms dense blooms under favorable environmental conditions. The proposed research will examine genome-wide patterns of gene expression, target gene expression levels, and patterns of population genetic diversity and structure of the target salp species. Our preliminary results and data analysis have provided a promising basis for transcriptomic studies of S. thompsoni in the Southern Ocean. The proposed next steps in our genomic/transcriptomic analysis of Salpa thompsoni are: 1) completion of a reference transcriptome as a basis for genome-wide analysis of gene expression; 2) whole transcriptome shotgun sequencing (RNA-Seq) analysis to characterize gene expression in relation to individual characteristics and environmental conditions; 3) quantitative real-time PCR (qRT-PCR) characterization and validation of gene expression for 10-20 top differentially-expressed genes; and 4) detection of strand-specific allelic variation at SNP (Single Nucleotide Polymorphic) sites to analyze clonal diversity and population genetic diversity and structure. We hypothesize that: 1) deep analysis of the Salpa thompsoni transcriptome will reveal significant associations among selected set of differentially-expressed genes and critical life history stages and events (e.g., ontogenetic maturation, sexual reproduction, senescence) of the salp; and 2) the species will show variable levels of clonal diversity and significant genetic differentiation among salp populations in different regions of the Southern Ocean. Samples will be obtained from research cruises during 2011-2013 in diverse regions of the Southern Ocean; dedicated sample and data collection will be carried out during a cruise of the R/V LM GOULD (LMG11-10) to the Western Antarctic Peninsula region in November, 2011. The significance of this effort lies in new understanding of the molecular processes underlying the complex life history and population dynamics of S. thompsoni in relation to the Antarctic pelagic ecosystem and extreme and variable environmental conditions of the Southern Ocean.
Most of the data from this project are available from the Marine Geoscience Data System (MGDS), part of IEDA and is available�at http://www.marine-geo.org/tools/search/Files.php?data_set_uid=18148.";
    String projects_0_end_date "2014-05";
    String projects_0_geolocation "Southern Ocean";
    String projects_0_name "Population ecology of Salpa thompsoni based on molecular indicators";
    String projects_0_project_nid "2174";
    String projects_0_start_date "2011-06";
    String publisher_name "Shannon Rauch";
    String publisher_role "BCO-DMO Data Manager(s)";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -65.0827;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "year, fluor_ss";
    String summary 
"This alongtrack data set consists of a single file produced for each day of
the LMG1110 cruise, from 11/2/2011 to 12/1/2011.\\u00a0 Data were obtained
primarily by applying calibrations to raw data and decimating to whole point
intervals.\\u00a0 However, several fields are derived measurements from more
than a single raw input.\\u00a0
 
IEDA has published a DOI for another version of this dataset: 'Underway
Hydrographic, Weather and Ship-state Data (JGOFS) from Laurence M. Gould
expedition LMG1110 (2011)'\\u00a0[10.1594/IEDA/318148](\\\\http://www.marine-
geo.org/tools/search/Files.php?tab=datacitation&data_set_uid=18148\\\\)";
    String title "Alongtrack data collected continuously by the ship's underway acquisition system from ARSV Laurence M. Gould cruise LMG1110 in the Southern Ocean in 2011";
    String version "1";
    Float64 Westernmost_Easting -69.3806;
    String xml_source "osprey2erddap.update_xml() v1.5-beta";
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

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.


 
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