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Dataset Title:  Alongtrack data collected continuously by the ship's underway acquisition
system from R/V Oceanus OC473 in the western North Atlantic, 35-50 degrees
North in 2011 (OAPS project)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_3640)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 yrday_new (dimensionless) ?          216    244
 year (dimensionless) ?      
   - +  ?
 month_gmt (mm) ?          "08"    "09"
 day_gmt (dd) ?          "01"    "31"
 date (unitless) ?          "8/10/2011"    "9/1/2011"
 time_gmt (decimal hours) ?          "0000.15"    "2359.88"
 latitude (degrees_north) ?          34.99578    50.10383
  < slider >
 longitude (degrees_east) ?          -70.89038    -41.69502
  < slider >
 sog (Speed Over Ground, knots) ?          0.0    98.8
 cog (Degrees(azimuth)) ?          0.0    360.0
 head (Degrees(azimuth)) ?          0.0    359.9
 cond_mS (mS/cm) ?          0.0586    58.34
 sal_ss (PSU) ?          0.0343    55.01
 sound_vel (m/s) ?          27.0097    1543.178
 temp_ss (degrees C) ?          10.72    1538.978
 SSC_FSI (mS/cm) ?          "/=5.0974"    "ÿÿÿ0"
 SST_FSI (degrees C) ?          "10.5896"    "á"
 depth_w_12 (Depth, m) ?          0.0    5528.0
 depth_w_3d5 (Depth, m) ?          0.0    5958.0
 wind_dir_r_port (Wind From Direction, degrees) ?          0.0    359.0
 wind_dir_r_stbd (Wind From Direction, degrees) ?          0.0    359.0
 wind_dir_c_port (Wind From Direction, degrees) ?          0.0    360.0
 wind_dir_c_stbd (Wind From Direction, degrees) ?          0.0    359.9
 wind_dir_c (Wind From Direction, degrees) ?          0.0    360.0
 wind_speed_r_port (Wind Speed, m/s) ?          0.0    997.9
 wind_speed_r_stbd (Wind Speed, m/s) ?          0.0    998.4
 wind_speed_c_port (Wind Speed, m/s) ?          0.043    992.341
 wind_speed_c_stbd (Wind Speed, m/s) ?          0.009    17.244
 wind_speed_kts (Wind Speed, knots) ?          0.0547    1004.3595
 temp_air_port (degrees C) ?          0.0    998.3
 temp_air_stbd (degrees C) ?          0.0    27.0
 press_bar_port (hPa) ?          1.7    1024.5
 press_bar_stbd (hPa) ?          999.1    1024.7
 press_bar (hPa) ?          1.72    1024.52
 precip_port (mm) ?          0.0    111.6
 precip_stbd (mm) ?          0.0    95.93
 precip_rate_port (Lwe Precipitation Rate, mm/hr) ?          0.0    121.0
 precip_rate_stbd (Lwe Precipitation Rate, mm/hr) ?          0.0    124.2
 humidity_port (%) ?          0.0    997.9
 humidity_stbd (%) ?          0.0    95.8
 FLR (counts) ?          55.0    1678.4
 radiation_s (watts/square-meter) ?          -2.6    1204.39
 
Server-side Functions ?
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  yrday_new {
    Int16 _FillValue 32767;
    Int16 actual_range 216, 244;
    String bcodmo_name "yrday";
    String description "yearday; derived from date column.";
    String long_name "Yrday New";
    String units "dimensionless";
  }
  year {
    Int16 _FillValue 32767;
    Int16 actual_range 2011, 2011;
    String bcodmo_name "year";
    String description "year (YYYY format); derived from date column.";
    String long_name "Year";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/";
    String units "dimensionless";
  }
  month_gmt {
    String bcodmo_name "month_gmt";
    String description "Month, GMT. Values derived from the 'date' field.";
    String long_name "Month Gmt";
    String units "mm";
  }
  day_gmt {
    String bcodmo_name "day_gmt";
    String description "Day, GMT. Values derived from the date field.";
    String long_name "Day Gmt";
    String units "dd";
  }
  date {
    String bcodmo_name "date";
    String description "month, day, year (GMT time) e.g. 8/4/2011. Month and day may be 1 or 2 digits. in m/d/yyyy format";
    String long_name "Date";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String source_name "date";
    String time_precision "1970-01-01";
    String units "unitless";
  }
  time_gmt {
    String bcodmo_name "time_gmt";
    String description "Time GMT, 24 hour clock. Values converted from HH:MM:SS format to HHMM.SS format.";
    String long_name "Time Gmt";
    String units "decimal hours";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 34.99578, 50.10383;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude, negative = South.";
    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";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -70.89038, -41.69502;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude, negative = West.";
    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";
  }
  sog {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 98.8;
    String bcodmo_name "sog";
    String description "Speed over ground (best source) obtained from primary GPS receiver. Name changed from 'SOG' during processing.";
    String long_name "Speed Over Ground";
    String units "knots";
  }
  cog {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 360.0;
    String bcodmo_name "cog";
    String description "Course over ground (true), best source, obtained from primary GPS receiver.";
    String long_name "Course Over Ground";
    String units "Degrees(azimuth)";
  }
  head {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 359.9;
    String bcodmo_name "heading";
    String description "The ship's heading obtained from primary true heading source (gyro). Name changed from 'HDT' during processing.";
    String long_name "Head";
    String units "Degrees(azimuth)";
  }
  cond_mS {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0586, 58.34;
    String bcodmo_name "conductivity mS";
    String description "Surface conductivity from the SBE45 thermosalinograph. Name changed from 'SBE45C' during processing.";
    String long_name "Cond M S";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/CNDC/";
    String units "mS/cm";
  }
  sal_ss {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0343, 55.01;
    String bcodmo_name "sal_ss";
    String description "Sea surface salinity measured by SBE45 thermosalinograph. Name changed from 'SBE45S' during processing.";
    String long_name "Sal Ss";
    String units "PSU";
  }
  sound_vel {
    Float32 _FillValue NaN;
    Float32 actual_range 27.0097, 1543.178;
    String bcodmo_name "sound_vel";
    String description "Surface sound velocity from the SBE45 thermosalinograph. Name changed from 'SBE45V' during processing.";
    String long_name "Sound Vel";
    String units "m/s";
  }
  temp_ss {
    Float32 _FillValue NaN;
    Float32 actual_range 10.72, 1538.978;
    String bcodmo_name "temp_ss";
    String description "Sea surface temperature measured by SBE48 sensor. Name changed from 'SBE48T' during processing.";
    String long_name "Temp Ss";
    String units "degrees C";
  }
  SSC_FSI {
    String bcodmo_name "conductivity mS";
    String description "Sea surface conductivity measured by FSI sensor.";
    String long_name "SSC FSI";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/CNDC/";
    String units "mS/cm";
  }
  SST_FSI {
    String bcodmo_name "temp_ss";
    String description "Sea surface temperature measured by FSI instrument.";
    String long_name "SST FSI";
    String units "degrees C";
  }
  depth_w_12 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 5528.0;
    String bcodmo_name "depth_w";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Depth in meters obtained from the Knudsen 12 kHz channel. 4 meter transducer depth correction has been applied. Name changed from 'Depth12' during processing.";
    String long_name "Depth";
    String standard_name "depth";
    String units "m";
  }
  depth_w_3d5 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 5958.0;
    String bcodmo_name "depth_w";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Depth in meters obtained from the Knudsen 3.5 kHz channel. 4 meter transducer depth correction has been applied. Name changed from 'Depth35' during processing.";
    String long_name "Depth";
    String standard_name "depth";
    String units "m";
  }
  wind_dir_r_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 359.0;
    String bcodmo_name "wind_dir_r";
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String description "Relative wind direction, port side. Data obtained from Vaisala WXT520 and has not been corrected for sensor mounting alignment error.A 0-degree wind comes over the bow; 90-degree wind comes over the stbd side. Name changed from 'WXTP_Dm' during processing.";
    String long_name "Wind From Direction";
    String units "degrees";
  }
  wind_dir_r_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 359.0;
    String bcodmo_name "wind_dir_r";
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String description "Relative wind direction, stbd side. Data obtained from Vaisala WXT520 and has not been corrected for sensor mounting alignment error.A 0-degree wind comes over the bow; 90-degree wind comes over the stbd side. Name changed from \"WXTS_Dm\" during processing.";
    String long_name "Wind From Direction";
    String units "degrees";
  }
  wind_dir_c_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 360.0;
    String bcodmo_name "wind_dir_c";
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String description "True wind direction in degrees, port side. Values are calculated from the Vaisala WXT520. Raw data corrected for sensor alignment error and combined with the ship's gyro heading, sog, and cog values. A 0-degree wind comes from the north. Name changed from 'WXTP_TD' during processing.";
    String long_name "Wind From Direction";
    String units "degrees";
  }
  wind_dir_c_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 359.9;
    String bcodmo_name "wind_dir_c";
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String description "True wind direction in degrees, stbd side. Values are calculated from  the Vaisala WXT520. Raw data corrected for sensor alignment error and  combined with the ship's gyro heading, sog, and cog values. A 0-degree  wind comes from the north. Name changed from 'WXTS_TD' during  processing.";
    String long_name "Wind From Direction";
    String units "degrees";
  }
  wind_dir_c {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 360.0;
    String bcodmo_name "wind_dir_c";
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String description "True wind direction from the primary source (WXT520's). Name changed from 'Wnd_TD' during processing.";
    String long_name "Wind From Direction";
    String units "degrees";
  }
  wind_speed_r_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 997.9;
    String bcodmo_name "wind_speed_r";
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String description "Relative wind speed, port side, obtained from Vaisala WXT520. Wind speed average in m/s (2 Hz, 10 sec sample period). Name changed from 'WXTP_Sm' during processing.";
    String long_name "Wind Speed";
    String units "m/s";
  }
  wind_speed_r_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 998.4;
    String bcodmo_name "wind_speed_r";
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String description "Relative wind speed, stbd side, obtained from Vaisala WXT520. Wind speed average in m/s (2 Hz, 10 sec sample period). Name changed from 'WXTS_Sm' during processing.";
    String long_name "Wind Speed";
    String units "m/s";
  }
  wind_speed_c_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.043, 992.341;
    String bcodmo_name "wind_speed_c";
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String description "True wind speed, port side. Values calculated from the Vaisala WXT520. Raw data corrected for sensor alignment error and combined with the ship's heading, sog, and cog values.Name changed from \"WXTP_TS\" during processing.";
    String long_name "Wind Speed";
    String units "m/s";
  }
  wind_speed_c_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.009, 17.244;
    String bcodmo_name "wind_speed_c";
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String description "True wind speed, stbd side. Values calculated from the Vaisala WXT520. Raw data corrected for sensor alignment error and combined with the ship's heading, sog, and cog values.Name changed from 'WXTS_TS' during processing.";
    String long_name "Wind Speed";
    String units "m/s";
  }
  wind_speed_kts {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0547, 1004.3595;
    String bcodmo_name "wind_speed_kts";
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String description "True wind speed from primary source (WXT520's). Name changed from 'Wnd_TS' during processing.";
    String long_name "Wind Speed";
    String units "knots";
  }
  temp_air_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 998.3;
    String bcodmo_name "temp_air";
    String description "Air temperature in degrees C. Obtained from Vaisala WXT520 mounted on forward mast, port side, 15 m above waterline. Name changed from 'WXTP_Ta' during processing.";
    String long_name "Temp Air Port";
    String units "degrees C";
  }
  temp_air_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 27.0;
    String bcodmo_name "temp_air";
    String description "Air temperature in degrees C. Obtained from Vaisala WXT520 mounted on forward mast, stbd side, 15 m above waterline. Name changed from 'WXTS_Ta' during processing.";
    String long_name "Temp Air Stbd";
    String units "degrees C";
  }
  press_bar_port {
    Float32 _FillValue NaN;
    Float32 actual_range 1.7, 1024.5;
    String bcodmo_name "press_bar";
    String description "Barometric pressure obtained from WXT520 mounted on the forward mast, port side, 14.5 m above sea level. Data has been corrected for sensor altitude. Name changed from 'WXTP_Pa' during processing.";
    String long_name "Press Bar Port";
    String units "hPa";
  }
  press_bar_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 999.1, 1024.7;
    String bcodmo_name "press_bar";
    String description "Barometric pressure obtained from WXT520 mounted on the forward mast, stbd side, 14.5 m above sea level. Data has been corrected for sensor altitude. Name changed from 'WXTS_Pa' during processing.";
    String long_name "Press Bar Stbd";
    String units "hPa";
  }
  press_bar {
    Float32 _FillValue NaN;
    Float32 actual_range 1.72, 1024.52;
    String bcodmo_name "press_bar";
    String description "Barometric pressure obtained from primary source (WXT520's). Values have been corrected for sensor height above sea level (.1185 hPa per meter, Oceanus = 14.5 m).Name changed from 'BPR' during processing.";
    String long_name "Press Bar";
    String units "hPa";
  }
  precip_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 111.6;
    String bcodmo_name "precip_level";
    String description "Rain accumulation in mm. Data obtained from Vaisala WXT520 mounted on forward mast, port side, 15 m above waterline.The accumulation value is reset only when the sensor power is reset. Name changed from 'WXTP_Rc' during processing.";
    String long_name "Precip Port";
    String units "mm";
  }
  precip_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 95.93;
    String bcodmo_name "precip_level";
    String description "Rain accumulation in mm. Data obtained from Vaisala WXT520 mounted on forward mast, stbd side, 15 m above waterline.The accumulation value is reset only when the sensor power is reset. Name changed from 'WXTS_Rc' during processing.";
    String long_name "Precip Stbd";
    String units "mm";
  }
  precip_rate_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 121.0;
    String bcodmo_name "preciptitation rate";
    Float64 colorBarMaximum 1.0e-4;
    Float64 colorBarMinimum 0.0;
    String description "Rain intensity in mm/hour obtained from Vaisala WXT520 mounted on forward mast, port side, 15 m above waterline. Name changed from 'WXTP_Ri' during processing.";
    String long_name "Lwe Precipitation Rate";
    String units "mm/hr";
  }
  precip_rate_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 124.2;
    String bcodmo_name "preciptitation rate";
    Float64 colorBarMaximum 1.0e-4;
    Float64 colorBarMinimum 0.0;
    String description "Rain intensity in mm/hour obtained from Vaisala WXT520 mounted on forward mast, stbd side, 15 m above waterline. Name changed from 'WXTS_Ri' during processing.";
    String long_name "Lwe Precipitation Rate";
    String units "mm/hr";
  }
  humidity_port {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 997.9;
    String bcodmo_name "humidity";
    String description "Relative humidity (%) obtained from Vaisala WXT520 mounted on forward mast, port side, 15 m above water line. Name changed from 'WXTP_Ua' during processing.";
    String long_name "Humidity Port";
    String units "%";
  }
  humidity_stbd {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 95.8;
    String bcodmo_name "humidity";
    String description "Relative humidity (%) obtained from Vaisala WXT520 mounted on forward mast, stbd side, 15 m above water line. Name changed from 'WXTS_Ua' during processing.";
    String long_name "Humidity Stbd";
    String units "%";
  }
  FLR {
    Float32 _FillValue NaN;
    Float32 actual_range 55.0, 1678.4;
    String bcodmo_name "fluorescence counts";
    String description "Fluorescence measured by WetLabs Wet-Star fluorometer located in the Wet Lab clean seawater piping. Units are counts (1 volt dc = 1000).";
    String long_name "FLR";
    String units "counts";
  }
  radiation_s {
    Float32 _FillValue NaN;
    Float32 actual_range -2.6, 1204.39;
    String bcodmo_name "radiation_s";
    String description "Short wave radiation in watts/square-meter. Raw data is in micro-volts.  Raw/8.38 = watts/square-meter. Sensor is mounted on bow mast 15 m above the waterline.Name changed from 'SWR' during processing.";
    String long_name "Radiation S";
    String units "watts/square-meter";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description 
"Alongtrack measurements were made continuously during the course of the
cruise. Data collection was handled by a number of computers and custom
software programs, including Calliope, the central program which collects,
logs, and distributes the data. Sea surface temperature, salinity, and
fluorescence data were collected once per minute upon leaving port.
Atmospheric measurements of air temperature, barometric pressure, wind speed
and direction, and other meteorological variables were also collected along
with time, latitude, and longitude once per minute. These data were saved on
the ship\\u2019s server on a daily basis in several different file formats.";
    String awards_0_award_nid "54702";
    String awards_0_award_number "OCE-1041068";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1041068";
    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 
"OC473 Alongtrack data 
    G. Lawson, Chief Scientist";
    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 "2012-04-09T19:59:20Z";
    String date_modified "2018-12-07T16:49:18Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.1575/1912/bco-dmo.3640.1";
    Float64 Easternmost_Easting -41.69502;
    Float64 geospatial_lat_max 50.10383;
    Float64 geospatial_lat_min 34.99578;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -41.69502;
    Float64 geospatial_lon_min -70.89038;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-03-28T14:30:11Z (local files)
2024-03-28T14:30:11Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3640.html";
    String infoUrl "https://www.bco-dmo.org/dataset/3640";
    String institution "BCO-DMO";
    String instruments_0_acronym "Fluorometer";
    String instruments_0_dataset_instrument_description "Sea surface fluorometer, WetLabs Wet-Star fluorometer located in the Wet Lab clean seawater piping. A MetraByte A/D converter is used to convert the 0-5 vdc fluorometer output to serial data.";
    String instruments_0_dataset_instrument_nid "5599";
    String instruments_0_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_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/113/";
    String instruments_0_instrument_name "Fluorometer";
    String instruments_0_instrument_nid "484";
    String instruments_0_supplied_name "Fluorometer";
    String instruments_1_acronym "GPS";
    String instruments_1_dataset_instrument_description "The Furuno GP-1850W (primary GPS) and Furuno  GP-90D receivers are the navigation devices for the ship. All GPS units are located on the bridge and  are operated by the ship’s watch officer. Typical data provided are  Time, Position, Velocity, Course-Over-Ground and Speed-Over-Ground. Heading and altitude from Ashtech GPS.";
    String instruments_1_dataset_instrument_nid "5597";
    String instruments_1_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_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/POS03/";
    String instruments_1_instrument_name "Global Positioning System Receiver";
    String instruments_1_instrument_nid "560";
    String instruments_1_supplied_name "Global Positioning System Receiver";
    String instruments_2_acronym "MicroTSG";
    String instruments_2_dataset_instrument_description "SBE45 MicroTSG sensor connected to the clean seawater system in the Wet Lab. See SBE48 for best sea surface temperature data. More information on this instrument is available on its spec sheet.";
    String instruments_2_dataset_instrument_nid "5598";
    String instruments_2_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_2_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/133/";
    String instruments_2_instrument_name "MicroTSG Thermosalinograph";
    String instruments_2_instrument_nid "583";
    String instruments_2_supplied_name "MicroTSG Thermosalinograph";
    String instruments_3_acronym "Knudsen 320";
    String instruments_3_dataset_instrument_description "Depth data was obtained from the Knudsen bathymetry system. Values have been corrected for transducer depth (4 meters). Bathymetric systems (3.5 kHz and 12.0 kHz) include: Knudsen 320B/R with digital data logging and EPC graphic recorder, Knudsen 3260 Chirp echsounder, Edo 323 B 12 kHz transducer, and an array of 12 3.5 kHz transducers.";
    String instruments_3_dataset_instrument_nid "5595";
    String instruments_3_description "The Knudsen 320 B/R deepwater echosounder is a digital data logging system used to measure water depth (e.g. depth of the seafloor).  The system is configured to work with different frequency transducers. For example, the Edo 323 B is a 12 kHz High Frequency (HF) transducer or it can be configured to work with an array of 3.5 kHz Low Frequency (LF) transducers mounted in the hull of a vessel.";
    String instruments_3_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/156/";
    String instruments_3_instrument_name "Knudsen 320 BR deepwater echosounder";
    String instruments_3_instrument_nid "643";
    String instruments_3_supplied_name "Knudsen 320 BR deepwater echosounder";
    String instruments_4_acronym "WXT520";
    String instruments_4_dataset_instrument_description "Vaisala WXT520 weather transmitters mounted on the forward mast, one each on port side and stbd side, 14.5 meters above sea level.";
    String instruments_4_dataset_instrument_nid "5596";
    String instruments_4_description "The ship-mounted Vaisala Weather Transmitter WXT520 measures: Wind speed and direction; Liquid precipitation: rainfall, duration, intensity; Barometric pressure; Air temperature and Relative humidity.  (for more information see http://www.vaisala.com/en/products/multiweathersensors/Pages/WXT520.aspx)";
    String instruments_4_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/102/";
    String instruments_4_instrument_name "Weather Transmitter";
    String instruments_4_instrument_nid "644";
    String instruments_4_supplied_name "Weather Transmitter";
    String instruments_5_acronym "SBE 48";
    String instruments_5_dataset_instrument_description "Hull Temperature Sensor; magnetically coupled SBE48 to measure sea surface temperature (C) through the hull. Sensor is located in the bow. Sensor housing is contained in an insulation jacket to limit effect of ambient bow chamber air.";
    String instruments_5_dataset_instrument_nid "5642";
    String instruments_5_description "The SBE 48 is a high-accuracy temperature recorder with non-volatile memory, designed for shipboard determination of sea surface temperature. Installed with magnets just below the water line, the SBE 48's temperature sensor is in contact with the inside of the ship's hull. For more information, see the SBE48 Manual.";
    String instruments_5_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/134/";
    String instruments_5_instrument_name "Sea-Bird SBE 48 Hull Temperature Sensor";
    String instruments_5_instrument_nid "648";
    String instruments_5_supplied_name "SBE 48 Hull Temperature Sensor";
    String instruments_6_acronym "Gyro";
    String instruments_6_dataset_instrument_nid "5671";
    String instruments_6_description "Compass with a motorized gyroscope that tracks true north (heading).";
    String instruments_6_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0079/";
    String instruments_6_instrument_name "Gyro";
    String instruments_6_instrument_nid "655";
    String instruments_6_supplied_name "Gyro";
    String keywords "air, altimetry, atmosphere, atmospheric, bar, bco, bco-dmo, biological, chemical, cog, cond, cond_mS, course, data, dataset, date, day, day_gmt, depth, depth_w_12, depth_w_3d5, direction, dmo, earth, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Atmosphere > Precipitation > Liquid Water Equivalent, Earth Science > Atmosphere > Precipitation > Precipitation Rate, equivalent, erddap, flr, fsi, ground, head, humidity, humidity_port, humidity_stbd, laboratory, latitude, liquid, longitude, lwe, lwe_precipitation_rate, management, month, month_gmt, new, oceanography, office, over, port, precip_port, precip_rate_port, precip_rate_stbd, precip_stbd, precipitation, preliminary, press, press_bar, press_bar_port, press_bar_stbd, radiation, radiation_s, rain, rainfall, rate, sal, sal_ss, satellite, science, sea, seawater, sog, sound, sound_vel, speed, ssc, SSC_FSI, sst, SST_FSI, stbd, surface, temp_air_port, temp_air_stbd, temp_ss, temperature, time, time_gmt, vel, water, wind, wind_dir_c, wind_dir_c_port, wind_dir_c_stbd, wind_dir_r_port, wind_dir_r_stbd, wind_from_direction, wind_speed, wind_speed_c_port, wind_speed_c_stbd, wind_speed_kts, wind_speed_r_port, wind_speed_r_stbd, winds, year, yrday, yrday_new";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://www.bco-dmo.org/dataset/3640/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/3640";
    Float64 Northernmost_Northing 50.10383;
    String param_mapping "{'3640': {'lat': 'master - latitude', 'lon': 'master - longitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/3640/parameters";
    String people_0_affiliation "Woods Hole Oceanographic Institution";
    String people_0_affiliation_acronym "WHOI";
    String people_0_person_name "Gareth Lawson";
    String people_0_person_nid "51084";
    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 "OAPS";
    String projects_0_acronym "OAPS";
    String projects_0_description 
"Modified version of the NSF award abstract:
The impact of ocean acidification on marine ecosystems represents a vital question facing both marine scientists and managers of ocean resources. Thecosome pteropods are a group of calcareous planktonic molluscs widely distributed in coastal and open ocean pelagic ecosystems of the world¡¦s oceans. These animals secrete an aragonite shell, and thus are highly sensitive to ocean acidification due to the water column's changing carbonate chemistry, and particularly the shoaling of the aragonite compensation depth at which seawater becomes corrosive to aragonite. In many regions, however, relatively little is known about the abundance, distribution, vertical migratory behavior, and ecological importance of pteropods. Assessing the likely ecosystem consequences of changes in pteropod dynamics resulting from ocean acidification will require a detailed understanding of pteropod distribution and abundance relative to changing aragonite saturation in the water column.
The primary objective of this project is to quantify the distribution, abundance, species composition, shell condition, and vertical migratory behavior of oceanic thecosome pteropods in the northwest Atlantic and northeast Pacific, and correlate these quantities to hydrography and concurrent measurements of carbonate chemistry, including vertical and horizontal distributions of aragonite saturation. In particular, the project will capitalize on present-day variability in the depth distribution of aragonite saturation levels within and between the Atlantic and Pacific Oceans as a \"natural experiment\" to address the hypotheses that pteropod vertical distribution, species composition, and abundance vary as the compensation depth becomes shallower. Secondary objectives are to develop acoustic protocols for the remote quantification of pteropod abundance for future integration into ocean acidification monitoring networks, and to characterize carbonate chemistry and nutrients along portions of two WOCE/CLIVAR Repeat Hydrography transects (A20 in the Atlantic and P17N in the Pacific) to identify decadal-scale changes in the carbonate system. These hypotheses and objectives will be addressed through two cruises along survey transects between 35 and 50 degrees North in the northwest Atlantic and northeast Pacific involving a combination of station-work and underway measurements, and a comprehensive array of instruments, including acoustic, optical, towed net, hydrographic, and carbonate chemistry sensors and sampling systems.
This highly inter-disciplinary project, combines expertise in zooplankton ecology, acoustics, and marine chemistry. The proposed work will result in a detailed baseline understanding of variability in the horizontal and vertical distribution, as well as species composition, of thecosome pteropods in the northwest Atlantic and northeast Pacific, making a key contribution to zooplankton ecology generally. In addition, by quantifying the response to current spatial variability within and between the Atlantic and Pacific Oceans, the project will provide important information on the likely response of pteropod distribution to future changes in the vertical distribution of aragonite saturation levels, a necessary component in modeling the impacts of ocean acidification on marine ecosystem function, services, and resources.
Ocean acidification is increasingly appreciated as an urgent societal concern. Thecosome pteropods are key prey for a variety of commercially-exploited fish species, and the improved understanding the PIs seek of pteropod distribution and likely response to changing water column carbonate chemistry will have important implications for our understanding of potential effects of ocean acidification on marine resources.";
    String projects_0_end_date "2013-09";
    String projects_0_geolocation "35 and 50 degrees North in the northwest Atlantic and northeast Pacific";
    String projects_0_name "Horizontal and Vertical Distribution of Thecosome Pteropods in Relation to Carbonate Chemistry in the Northwest Atlantic and Northeast Pacific";
    String projects_0_project_nid "2154";
    String projects_0_start_date "2010-10";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 34.99578;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "year";
    String summary "This alongtrack data set contains information on environmental conditions for each day of the OC473 cruise, from 8/4/2011 to 9/1/2011.";
    String title "Alongtrack data collected continuously by the ship's underway acquisition system from R/V Oceanus OC473 in the western North Atlantic, 35-50 degrees North in 2011 (OAPS project)";
    String version "1";
    Float64 Westernmost_Easting -70.89038;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

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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