Easier access to scientific data
Brought to you by NOAA NMFS SWFSC ERD
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ERDDAP
Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Daily Daylight-Hours AVHRR Coldest Pixel Composite
|
| Institution: | Rutgers University (Dataset ID: avhrr-coldest-pixel) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Files
| Make a graph
|
Attributes {
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.3779936e+9, 1.67702394e+9;
String axis "T";
String calendar "gregorian";
String comment "timestamp is end time of 24h composite";
String ioos_category "Time";
Float64 least_significant_digit 0;
String long_name "reference time of sst field";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
z {
Float32 actual_range 0.0, 0.0;
String axis "Z";
String comment "all measurements are at surface";
String ioos_category "Location";
String long_name "depth of measurement";
String positive "down";
String standard_name "depth";
String units "m";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range 31.0, 47.33;
String axis "Y";
String comment "subset of the MUR SST grid";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
Float32 valid_max 90.0;
Float32 valid_min -90.0;
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -83.25, -56.9;
String axis "X";
String comment "subset of the MUR SST grid";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
Float32 valid_max 180.0;
Float32 valid_min -180.0;
}
sst {
Float32 _FillValue -999.0;
String ancillary_variables "included_passes, sst_qc_flag";
Float64 colorBarMaximum 32.0;
Float64 colorBarMinimum 0.0;
String comment "daily coldest-pixel composite of SST from NOAA-AVHRR satellites declouded based on visible reflectivity";
String ioos_category "Temperature";
String long_name "coldest pixel composite sea surface temperature";
String platform "platform";
String short_name "sst";
String source "NOAA-AVHRR";
String standard_name "sea_surface_temperature";
String units "degree_C";
}
sst_qc_flag {
Int32 _FillValue -1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String comment "placeholder for future quality control measures";
String ioos_category "Quality";
String long_name "sea surface temperature quality control flag";
String standard_name "sea_surface_temperature_status_flag";
}
NC_GLOBAL {
String _NCProperties "version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.1";
String acknowledgement "This product supported by the Board of Public Utilities.";
String cdm_data_type "Grid";
String comment "Timestamps with data provided in 'composite_start_time' and 'composite_end_time' define daylight hours as all data within that time window. Timestamps with data provided in 'minimum_sun_angle' defined daylight on a pixel-by-pixel basis dependent on the sun angle at that point and time. Data is regridded to a subset of the MUR SST grid.";
String contributor_name "Scott Glenn, Travis Miles, Michael Crowley, Joe Brodie, Laura Nazzaro";
String contributor_role "Principal Investigator, Principal Investigator, Satellite Operations, Director of Atmospheric Research, Data Manager";
String Conventions "CF-1.6, ACDD-1.3, COARDS";
String creator_email "nazzaro@marine.rutgers.edu";
String creator_name "Laura Nazzaro";
String creator_type "person";
String creator_url "rucool.marine.rutgers.edu";
String date_created "February-22-2023 02:38 GMT";
String date_modified "February-22-2023 02:38 GMT";
Float64 Easternmost_Easting -56.9;
Float64 geospatial_lat_max 47.33;
Float64 geospatial_lat_min 31.0;
Float64 geospatial_lat_resolution 0.009999999999999998;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -56.9;
Float64 geospatial_lon_min -83.25;
Float64 geospatial_lon_resolution 0.01;
String geospatial_lon_units "degrees_east";
String history
"Created February-22-2023 02:38 GMT
2024-04-23T18:56:06Z (local files)
2024-04-23T18:56:06Z http://ruwrf-archive.marine.rutgers.edu/erddap/griddap/avhrr-coldest-pixel.das";
String infoUrl "rucool.marine.rutgers.edu";
String institution "Rutgers University";
String ioos_regional_association "MARACOOS";
String keywords "advanced, avhrr, coldest, composite, control, daily, data, day, daylight, daylight-hours, earth, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, flag, high, hours, ocean, oceans, pixel, quality, radiometer, resolution, rutgers, science, sea, sea_surface_temperature, sea_surface_temperature_status_flag, sst, sst_qc_flag, status, surface, temperature, time, 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 "edu.rutgers.marine";
Float64 Northernmost_Northing 47.33;
String processing_level "declouded based on visible reflectivity and composited (coldest-pixel) over 24 hours (daylight only)";
String publisher_email "nazzaro@marine.rutgers.edu";
String publisher_name "Laura Nazzaro";
String publisher_type "person";
String publisher_url "rucool.marine.rutgers.edu";
String sea_name "Mid-Atlantic Bight";
String source "NOAA-AVHRR";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 31.0;
String spatial_resolution "0.01 degrees";
String standard_name_vocabulary "CF Standard Name Table v52";
String summary "This product is a daily coldest pixel composite using NOAA-Advanced Very High Resolution Radiometer (AVHRR) satellite Sea Surface Temperature (SST) declouded based on reflectivity in the visible spectrum. This method of declouding is limited to daylight hours, but lets in cold water that often gets flagged as clouds based on other declouding algorithms, making this product a useful tool for identifying upwelling regions and storm cooling earlier than they are typically seen in other SST products.";
String testOutOfDate "now-2days";
String time_coverage_duration "1 day";
String time_coverage_end "2023-02-21T23:59:00Z";
String time_coverage_resolution "1 day";
String time_coverage_start "2013-09-01T00:00:00Z";
String title "Daily Daylight-Hours AVHRR Coldest Pixel Composite";
Float64 Westernmost_Easting -83.25;
}
}
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/jplMURSST.htmlTable?analysed_sst[(2015-06-09T09:00:00Z)][(-89.9945):1000:(89.9945)][(-179.995):1000:(179.995)]
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.