Easier access to scientific data
Brought to you by NOAA NMFS SWFSC ERD
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ERDDAP
Easier access to scientific data |
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Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Multi-Satellite AVHRR single pass 1.1 km Unfiltered SST (cloud mask available) Northwest Atlantic 
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| Institution: | University of Delaware (Dataset ID: avhrr_unfiltered_sst) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Make a graph
|
Attributes {
time {
UInt32 _ChunkSizes 1;
String _CoordinateAxisType "Time";
Float64 actual_range 1.12709832e+9, 1.70775036e+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";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 actual_range 20.0, 52.0;
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 actual_range -100.0, -50.0;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
mcsst {
UInt32 _ChunkSizes 1, 727, 896;
Float32 _FillValue -999.0;
Float64 colorBarMaximum 32.0;
Float64 colorBarMinimum 0.0;
String comments "Projection information found in the crs variable";
String grid_mapping "crs";
String ioos_category "Temperature";
String long_name "Multichannel Sea Surface Temperature";
Float32 missing_value -999.0;
String standard_name "sea_surface_temperature";
String units "Celsius";
}
cloud_land_mask {
UInt32 _ChunkSizes 1, 727, 896;
Int32 _FillValue -999;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String comments "The land mask flag is 99; Missing values from the TerraScan software have a flag of zero; A measurement not on land and not missing from the TerraScan software fails the time test if it is more than 2 degrees cooler than the mean of the satellite passes in the previous 72 hrs; A measurement fails the climatology test if the temperature is more than 5 degrees colder than the climatologies calculated by NSIPP AVHRR Pathfinder and Erosion Global 9km SST Climatology (Casey, Cornillon) A description of this climatology can be found at ftp://podaac.jpl.nasa.gov/pub/documents/dataset_docs/nsipp_climatology.htm; The combined time and climatology test is not a simple combination of a failure of the time and climatology tests. In this test, the previous 72 hours or satellite passes are first passed through a climatology test, then passed through the time test. It is a sequential test, rather than two independent tests. If any measurement is fails a test, all neighboring measurements within 3km are aslo automatically failed. The flag for the time test, climatoiloty test, and sequential test are 1, 2 and 4 respectively. The integer sum of these tests tell the user which of the three tests any pixel failed. Interpretation of the flags are; 0 = passed all tests 0+0+0; 1 = failed only time test 1+0+0=1; 2 = failed only climatology test 0+2+0=2; 3 = failed time test and climatology test 1+2+0=3; 4 = failed only sequential test test 0+0+4=4; 5 = failed time test and sequential test 1+0+4=5; 6 = failed climatology test and sequential test 0+2+4=6; 7 = failed time test, climatology test and sequential test 1+2+4=7. Alternatively; Pixels that failed the time test could have flags of 1, 3, 4, 7; Pixels that failed the climatology test could have flags of 2, 3, 6, 7; Pixels that failed the sequential test could have flags of 4, 5, 6, 7";
String Convention "0=passed 1=failed time test 2=failed climatology test 4=failed combined time and climatology test 99=land mask; Logical tests are summed";
String ioos_category "Identifier";
String long_name "Land Binary Mask";
Int32 missing_value -999;
String standard_name "land_binary_mask";
String units "NULL";
}
NC_GLOBAL {
String cdm_data_type "Grid";
String Conventions "CF-1.6, COARDS, ACDD-1.3";
String creator_email "moliver@udel.edu";
String creator_name "Matt Oliver";
String creator_url "http://orb.ceoe.udel.edu/";
Float64 Easternmost_Easting -50.0;
Float64 geospatial_lat_max 52.0;
Float64 geospatial_lat_min 20.0;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -50.0;
Float64 geospatial_lon_min -100.0;
String geospatial_lon_units "degrees_east";
String groundstation "RU-COOL L-band receiver at Rutgers University, New Jersey, USA";
String history
"NOAA AVHRR
2025-10-31T06:50:47Z (local files)
2025-10-31T06:50:47Z http://basin.ceoe.udel.edu/erddap/griddap/avhrr_unfiltered_sst.das";
String id "avhrr.sst";
String infoUrl "https://noaasis.noaa.gov/NOAASIS/ml/avhrr.html";
String institution "University of Delaware";
String keywords "advanced, association, atlantic, avhrr, binary, cloud_land_mask, coastal, data, delaware, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, high, identifier, land, land_binary_mask, maracoos, mask, mcsst, mid, mid-atlantic, multichannel, observing, ocean, oceans, radiometer, regional, resolution, rutgers, satellite sst, sea, sea surface temperature, sea_surface_temperature, sst, surface, system, temperature, time, udel, university, very, vhrr";
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 naming_authority "MARACOOS";
String NCO "4.0.8";
Float64 Northernmost_Northing 52.0;
String publisher_email "maracoosinfo@udel.edu";
String publisher_name "MARACOOS DMAC";
String publisher_url "https://maracoos.org";
String source "NOAA AVHRR";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 20.0;
String standard_name_vocabulary "CF Standard Name Table v29";
String summary "Advanced Very High Resolution Radiometer (AVHRR) Sea Surface Temperature for MARACOOS (Mid-Atlantic Regional Association Coastal Ocean Observing System). Sea surface temperature over the Mid-Atlantic and surrounding waters from NOAA AVHRR satellites. MCSST calculation and image navigation by TeraScan software; Regridded to Mercator lon/lat projection. Processed and De-clouded at University of Delaware. All data are preserved, and a multi class cloud mask is provided to the user";
String time_coverage_end "2024-02-12T15:06:00Z";
String time_coverage_start "2005-09-19T02:52:00Z";
String title "Multi-Satellite AVHRR single pass 1.1 km Unfiltered SST (cloud mask available) Northwest Atlantic";
String url "http://www.ceoe.udel.edu, https://marine.rutgers.edu/cool/sat_data";
Float64 Westernmost_Easting -100.0;
}
}
Data Access Protocol (DAP) and its
projection 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.
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[(2002-06-01T09:00:00Z)][(-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.