Data Access Form

Dataset Title:	Surface Currents - MARACOOS - 6km - Archive: 2002 to 2007
Institution:	Center for Ocean Observing and Leadership, Department of Marine & Coastal Sciences, Rutgers University (Dataset ID: surface_currents-archive_2007-to-2007)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Make a graph

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Dimensions	Size	Spacing
time (UTC)	17528	3h 0m 0s (even)

depth (m)	1	(just one value)

latitude (degrees_north)	187	0.05394 (even)

longitude (degrees_east)	196	0.05807523 (even)

Grid Variables (which always also download all of the dimension variables)

v (Northward Surface Current (m/s), m/s)

u (Eastward Surface Current (m/s), m/s)

File type: (more information)

(Documentation / Bypass this form)

(Please be patient. It may take a while to get the data.)

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.0098432e+9, 1.1991348e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 0.0;
    String axis "Z";
    String comment "Derived from mean value of depth variable";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String source_name "z";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue NaN;
    Float32 actual_range 33.81852, 43.85136;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String short_name "lat";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 90.0;
    Float32 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue NaN;
    Float32 actual_range -77.90598, -66.58131;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String short_name "lon";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max 180.0;
    Float32 valid_min -180.0;
  }
  v {
    Float32 _FillValue NaN;
    String ancillary_variables "qc303_maxspeed qc305_validlocation qc306_uerr qc307_verr qc_primary_flag qc_operator_flag";
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Northward Surface Current (m/s)";
    String short_name "v";
    String standard_name "surface_northward_sea_water_velocity";
    String units "m/s";
    Float32 valid_max 300.0;
    Float32 valid_min -300.0;
  }
  u {
    Float32 _FillValue NaN;
    String ancillary_variables "qc303_maxspeed qc305_validlocation qc306_uerr qc307_verr qc_primary_flag qc_operator_flag";
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Eastward Surface Current (m/s)";
    String short_name "u";
    String standard_name "surface_eastward_sea_water_velocity";
    String units "m/s";
    Float32 valid_max 300.0;
    Float32 valid_min -300.0;
  }
  NC_GLOBAL {
    String acknowledgement "This data is provided by the Mid-Atlantic Regional Association Coastal Ocean Observing System (MARACOOS). Funding is provided by the U.S. Integration Ocean Observing System (IOOS).";
    String cdm_data_type "Grid";
    String comment "Network maintained by MARACOOS and SECOORA. For oi_* global attribute explanations, see references attribute";
    String contributor_name "Scott Glenn, Josh Kohut, Hugh Roarty, Donglai Gong";
    String contributor_role "Principal Investigator, Principal Investigator, Principal Investigator, Principal Investigator";
    String Conventions "CF-1.6, ACDD-1.3, COARDS";
    String creator_email "tstolarz@marine.rutgers.edu";
    String creator_institution "Rutgers University";
    String creator_name "Timothy Stolarz";
    String creator_type "person";
    String creator_url "rucool.marine.rutgers.edu";
    String date_created "2024-04-24T12:00:00Z";
    String date_issued "2024-04-22T12:00:00Z";
    String date_metadata_modified "2024-04-22T12:00:00Z";
    String date_modified "2024-04-22T12:00:00Z";
    Float64 Easternmost_Easting -66.58131;
    Float64 geospatial_lat_max 43.85136;
    Float64 geospatial_lat_min 33.81852;
    Float64 geospatial_lat_resolution 0.05394;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -66.58131;
    Float64 geospatial_lon_min -77.90598;
    Float64 geospatial_lon_resolution 0.058075230769230754;
    String geospatial_lon_units "degrees_east";
    String grid_mapping_comment "http://www.opengis.net/def/crs/EPSG/0/4326";
    String grid_mapping_epsg_code "EPSG:4326";
    Float64 grid_mapping_inverse_flattening 298.257223563;
    String grid_mapping_long_name "Coordinate Reference System";
    String grid_mapping_name "latitude_longitude";
    String grid_mapping_semi_major_axis "6378137.0";
    String history 
"Hourly CODAR radial data combined into one hourly file containing vectors.
2024-12-22T14:46:08Z (local files)
2024-12-22T14:46:08Z http://hfr.marine.rutgers.edu/erddap/griddap/surface_currents-archive_2007-to-2007.das";
    String infoUrl "rucool.marine.rutgers.edu";
    String institution "Center for Ocean Observing and Leadership, Department of Marine & Coastal Sciences, Rutgers University";
    String instrument "Network includes CODAR sites HOOK, LOVE, and WILD";
    String keywords "06km, advisories, center, circulation, coastal, current, currents, data, department, earth, Earth Science > Oceans > Coastal Processes, Earth Science > Oceans > Ocean Circulation, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Tides, Earth Science > Oceans > Ocean Waves, Earth Science > Oceans > Ocean Winds, Earth Science > Spectral/Engineering > Radar, eastward, engineering, environmental, Environmental Advisories > Marine Advisories > Marine Weather/Forecast, forecast, leadership, marine, northward, observing, ocean, oceans, processes, radar, rutgers, science, sciences, sea, seawater, spectral, spectral/engineering, surface, surface_eastward_sea_water_velocity, surface_northward_sea_water_velocity, tides, time, u, university, v, velocity, water, waves, weather, weather/forecast, winds";
    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 method "Unweighted Least Squares";
    String naming_authority "edu.rutgers.marine.rucool";
    Float64 Northernmost_Northing 43.85136;
    String platform "Rutgers HF Radar 5MHz Network";
    String processing_level "Level 4";
    String project "Mid-Atlantic Regional Association Coastal Ocean Observing System - High Frequency Radar Sea Surface Current Mapping";
    String publisher_email "ncei.info@noaa.gov";
    String publisher_name "NOAA National Centers for Environmental Information";
    String publisher_type "group";
    String publisher_url "www.ncei.noaa.gov";
    String references "DOI:10.1029/2007JC004244 DOI:10.1007/s10236-012-0533-9 https://maracoos.org/ https://rucool.marine.rutgers.edu/facilities https://rucool.marine.rutgers.edu/data";
    String sea_name "Mid-Atlantic Bight";
    String source "CODAR SeaSonde Surface Current Mapping Radar";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 33.81852;
    String standard_name_vocabulary "CF Standard Name Table v41";
    String summary "Total Vectors calculated by HFRProgs toolbox using MATLAB. Mercator lat/lon projection";
    String time_coverage_end "2007-12-31T21:00:00Z";
    String time_coverage_start "2002-01-01T00:00:00Z";
    String title "Surface Currents - MARACOOS - 6km - Archive: 2002 to 2007";
    Float64 Westernmost_Easting -77.90598;
  }
}

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its projection 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.

(easy) You can get data by using the dataset's Data Access Form. It makes the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2015-06-09T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.