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Dataset Title:  USM AMSEAS Dynamic Anomaly Properties   RSS
Institution:  University of Southern Mississippi   (Dataset ID: USM_AMSEAS_DAP)
Information:  Summary ? | License ? | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      222    7 days 22h 48m 20s (uneven)
  < slider >
 longitude (degrees_east) ?      1294    -0.03333 (even)
  < slider >
 latitude (degrees_north) ?      814    -0.0333 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables) 
 amsal_Weekly (8-day Surface Salinity, psu) ?
 amsal_8wkAvg (8-week Surface Salinity, psu) ?
 amsal_StDev (8-week Surface Salinity Standard Deviation, psu) ?
 amsal_Anomaly (Sea Surface Salinity Anomaly, psu) ?
 amsal_StDevMask1 (surface salinity 1 std dev mask, unitless) ?
 amsal_StDevMask2 (8-week surface salinity std dev mask, unitless) ?
 amsal_StDevMask3 (8-week sea surface salinity 3 std dev mask, unitless) ?
 amsal_StDevMask4 (8-week sea surface salinity 4 std dev mask, unitless) ?
 amcurr_Weekly (8-day Sea Surface Current Magnitude, m/s) ?
 amcurr_8wkAvg (8-week Sea Surface Current Magnitude, m/s) ?
 amcurr_StDev (8-week Sea Surface Current Magnitude Standard Deviation, m/s) ?
 amcurr_Anomaly (Sea Surface Current Magnitude Anomaly, m/s) ?
 amcurr_StDevMask1 (Sea Surface Current Magnitude 1 Std Dev Mask, unitless) ?
 amcurr_StDevMask2 (8-week Sea Surface Current Magnitude Std Dev Mask, unitless) ?
 amcurr_StDevMask3 (8-week Sea Surface Current Magnitude 3 Std Dev Mask, unitless) ?
 amcurr_StDevMask4 (8-week Sea Surface Current Magnitude 4 Std Dev Mask, unitless) ?
 amsst_Weekly (8-day Sea Surface Temperature, degC) ?
 amsst_8wkAvg (8-week Sea Surface Temperature, degC) ?
 amsst_StDev (8-week Sea Surface Temperature Standard Deviation, degC) ?
 amsst_Anomaly (Sea Surface Temperature Anomaly, degC) ?
 amsst_StDevMask1 (Sea Surface Temperature1 Std Dev Mask, unitless) ?
 amsst_StDevMask2 (8-week Sea Surface Temperature Std Dev Mask, unitless) ?
 amsst_StDevMask3 (8-week Sea Surface Temperature 3 Std Dev Mask, unitless) ?
 amsst_StDevMask4 (8-week Sea Surface Temperature 4 Std Dev Mask, unitless) ?

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 {
    Int32 _ChunkSizes 524288;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.3885344e+9, 1.5403392e+9;
    String axis "T";
    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";
  }
  longitude {
    Int32 _ChunkSizes 1294;
    String _CoordinateAxisType "Lon";
    Float64 actual_range -97.99998999999997, -54.90429999999998;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    Int32 _ChunkSizes 814;
    String _CoordinateAxisType "Lat";
    Float64 actual_range 5.024399999999993, 32.0973;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  amsal_Weekly {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Salinity";
    String long_name "8-day Surface Salinity";
    String standard_name "sea_surface_salinity";
    String units "psu";
  }
  amsal_8wkAvg {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Salinity";
    String long_name "8-week Surface Salinity";
    String standard_name "sea_surface_salinity";
    String units "psu";
  }
  amsal_StDev {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Statistics";
    String long_name "8-week Surface Salinity Standard Deviation";
    String standard_name "sea_surface_salinity";
    String units "psu";
  }
  amsal_Anomaly {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Salinity";
    String long_name "Sea Surface Salinity Anomaly";
    String standard_name "sea_surface_salinity";
    String units "psu";
  }
  amsal_StDevMask1 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "surface salinity 1 std dev mask";
    String standard_name "sea_surface_salinity_1_std_dev_mask";
    String units "unitless";
  }
  amsal_StDevMask2 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week surface salinity std dev mask";
    String standard_name "sea_surface_salinity_2_std_dev_mask";
    String units "unitless";
  }
  amsal_StDevMask3 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week sea surface salinity 3 std dev mask";
    String standard_name "sea_surface_salinity_3_std_dev_mask";
    String units "unitless";
  }
  amsal_StDevMask4 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week sea surface salinity 4 std dev mask";
    String standard_name "sea_surface_salinity_4_std_dev_mask";
    String units "unitless";
  }
  amcurr_Weekly {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Currents";
    String long_name "8-day Sea Surface Current Magnitude";
    String standard_name "sea_surface_current_magnitude";
    String units "m/s";
  }
  amcurr_8wkAvg {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Currents";
    String long_name "8-week Sea Surface Current Magnitude";
    String standard_name "sea_surface_current_magnitude";
    String units "m/s";
  }
  amcurr_StDev {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Statistics";
    String long_name "8-week Sea Surface Current Magnitude Standard Deviation";
    String standard_name "sea_surface_current_magnitude";
    String units "m/s";
  }
  amcurr_Anomaly {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Currents";
    String long_name "Sea Surface Current Magnitude Anomaly";
    String standard_name "sea_surface_current_magnitude";
    String units "m/s";
  }
  amcurr_StDevMask1 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "Sea Surface Current Magnitude 1 Std Dev Mask";
    String standard_name "sea_surface_current_magnitude_1_std_dev_mask";
    String units "unitless";
  }
  amcurr_StDevMask2 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week Sea Surface Current Magnitude Std Dev Mask";
    String standard_name "sea_surface_current_magnitude_2_std_dev_mask";
    String units "unitless";
  }
  amcurr_StDevMask3 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week Sea Surface Current Magnitude 3 Std Dev Mask";
    String standard_name "sea_surface_current_magnitude_3_std_dev_mask";
    String units "unitless";
  }
  amcurr_StDevMask4 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week Sea Surface Current Magnitude 4 Std Dev Mask";
    String standard_name "sea_surface_current_magnitude_4_std_dev_mask";
    String units "unitless";
  }
  amsst_Weekly {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Temperature";
    String long_name "8-day Sea Surface Temperature";
    String standard_name "sea_surface_temperature";
    String units "degC";
  }
  amsst_8wkAvg {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Temperature";
    String long_name "8-week Sea Surface Temperature";
    String standard_name "sea_surface_temperature";
    String units "degC";
  }
  amsst_StDev {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Temperature";
    String long_name "8-week Sea Surface Temperature Standard Deviation";
    String units "degC";
  }
  amsst_Anomaly {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Temperature";
    String long_name "Sea Surface Temperature Anomaly";
    String units "degC";
  }
  amsst_StDevMask1 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "Sea Surface Temperature1 Std Dev Mask";
    String standard_name "sea_surface_temperature_1_std_dev_mask";
    String units "unitless";
  }
  amsst_StDevMask2 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week Sea Surface Temperature Std Dev Mask";
    String standard_name "sea_surface_temperature_2_std_dev_mask";
    String units "unitless";
  }
  amsst_StDevMask3 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week Sea Surface Temperature 3 Std Dev Mask";
    String standard_name "sea_surface_temperature_3_std_dev_mask";
    String units "unitless";
  }
  amsst_StDevMask4 {
    Int32 _ChunkSizes 1, 647, 407;
    String ioos_category "Other";
    String long_name "8-week Sea Surface Temperature 4 Std Dev Mask";
    String standard_name "sea_surface_temperature_4_std_dev_mask";
    String units "unitless";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "CF 1.0";
    String data "AMSEAS estimates";
    String division "Marine Science";
    Float64 Easternmost_Easting -54.90429999999998;
    Float64 geospatial_lat_max 32.0973;
    Float64 geospatial_lat_min 5.024399999999993;
    Float64 geospatial_lat_resolution 0.0333;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -54.90429999999998;
    Float64 geospatial_lon_min -97.99998999999997;
    Float64 geospatial_lon_resolution 0.03332999999999999;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-04-16T17:13:03Z https://www.ncei.noaa.gov/thredds-coastal/dodsC/usm_dap_aggregation
2024-04-16T17:13:03Z https://www.ncei.noaa.gov/erddap/griddap/USM_AMSEAS_DAP.das";
    String infoUrl "https://www.usm.edu/sites/default/files/groups/division-marine-science/pdf/owx_pub_2_arnone_jones_dap_spie.pdf";
    String institution "University of Southern Mississippi";
    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.";
    Float64 Northernmost_Northing 32.0973;
    String processed_by "Ocean Weather Lab";
    String sourceUrl "https://www.ncei.noaa.gov/thredds-coastal/dodsC/usm_dap_aggregation";
    Float64 Southernmost_Northing 5.024399999999993;
    String standard_name_vocabulary "CF-1.0";
    String summary "Data from USM AMSEAS DAP";
    String time_coverage_end "2018-10-24T00:00:00Z";
    String time_coverage_start "2014-01-01T00:00:00Z";
    String title "USM AMSEAS Dynamic Anomaly Properties";
    Float64 Westernmost_Easting -97.99998999999997;
  }
}

 

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.

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/erdBAssta5day.htmlTable?sst[(2007-10-21T00:00:00)][0][(-75):100:(75)][(180):100:(360)]
Thus, the query is often a data variable name (e.g., sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][altitude][latitude][longitude]).

For details, see the griddap Documentation.


 
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