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Title Sum-
Institution Dataset ID
 data       graph  M    files  NOAA CoastWatch, Sea Surface Height Anomalies and Geostrophic Currents from Altimetry,
Global, 2017-present, EXPERIMENTAL
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_email String Eric.Leuliette at
attribute NC_GLOBAL creator_name String Eric Leuliette
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL cw_processing_algorithm String RADS 4.2.5
attribute NC_GLOBAL cw_product_status String Experimental
attribute NC_GLOBAL cw_satellite String Jason-2
attribute NC_GLOBAL date_created String 2024-06-28T12:36:13Z
attribute NC_GLOBAL date_modified String 2024-06-28T12:36:13Z
attribute NC_GLOBAL Easternmost_Easting double 179.875
attribute NC_GLOBAL geospatial_lat_max double 89.875
attribute NC_GLOBAL geospatial_lat_min double -89.875
attribute NC_GLOBAL geospatial_lat_resolution double 0.25
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.875
attribute NC_GLOBAL geospatial_lon_min double -179.875
attribute NC_GLOBAL geospatial_lon_resolution double 0.25
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String Data from Radar Altimetry Database System (RADS)
Every day, at NOAA NMFS SWFSC ERD downloads new data from
attribute NC_GLOBAL id String nesdisSSH1day
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String NOAA/NESDIS Center for Satellite Applications and Research
attribute NC_GLOBAL keywords String above, altimetry, anomalies, anomaly, applications, center, CoastWatch, CryoSat-2, daily, data, day, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, Earth Science > Oceans > Surface Sea Surface Height, Earth Science > Solid Earth > Geodetics/Gravity > Geoid Properties, environmental, height, information, Jason-2, Jason-3, latitude, level, longitude, merged, national, nesdis, noaa, ocean, oceans, OceanWatch, RADS-NRT-SLA-Daily-L3, research, SARAL, satellite, sea, sea level, sea level anomalies, sea surface height, sea_surface_height_above_sea_level, Sentinel-3A, service, sla, ssh, surface, time, topography
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String 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.

Please acknowledge NOAA CoastWatch/OceanWatch and Southwest Fisheries Science Center's Environmental Research Division when you use these data. To cite these data in a paper, please cite Leuliette and Scharroo (2010) found in the reference attribute and follow the instructions in the license and at this link:”
attribute NC_GLOBAL naming_authority String gov.noaa.pfeg.coastwatch
attribute NC_GLOBAL Northernmost_Northing double 89.875
attribute NC_GLOBAL platform String Jason-2, Jason-3, Sentinel-3A, CryoSat-2, SARAL
attribute NC_GLOBAL processing_level String L3
attribute NC_GLOBAL project String Radar Altimetry Database System
attribute NC_GLOBAL publisher_email String at
attribute NC_GLOBAL publisher_name String NOAA NMFS SWFSC ERD
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL publisher_url String (external link)
attribute NC_GLOBAL reference String Leuliette, E. W., and R. Scharroo (2010). Integrating Jason-2 into a Multiple-Altimeter Climate Data Record. Marine Geodesy, 33(1), 504–517. doi:10.1080/01490419.2010.487795
attribute NC_GLOBAL source String Altimetry measurements
attribute NC_GLOBAL sourceUrl String (external link)
attribute NC_GLOBAL Southernmost_Northing double -89.875
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String The altimetry data are from RADS (, the Radar Altimetry Database System, first developed at Delft University of Technology, now also at the NOAA and the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT). The RADS data for each mission is updated with state of the art corrections for tides, atmospheric path delay, etc. Because they are all computed consistently between the various missions, this avoids the possibility of introducing biases and drifts because of the different implementation of the various corrections by different agencies. The goals of RADS are to provide a homogenous dataset of sea level anomalies, wave heights, and wind speeds, along with database selection and analysis tools.
attribute NC_GLOBAL testOutOfDate String now-3days
attribute NC_GLOBAL time_coverage_end String 2024-06-27T00:00:00Z
attribute NC_GLOBAL time_coverage_resolution String PD1
attribute NC_GLOBAL time_coverage_start String 2017-02-13T00:00:00Z
attribute NC_GLOBAL title String NOAA CoastWatch, Sea Surface Height Anomalies and Geostrophic Currents from Altimetry, Global, 2017-present, EXPERIMENTAL
attribute NC_GLOBAL Westernmost_Easting double -179.875
dimension time   double nValues=2676, evenlySpaced=false, averageSpacing=1 day 0h 8m 37s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.486944E9, 1.7194464E9
attribute time axis String T
attribute time calendar String gregorian
attribute time coverage_content_type String coordinate
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
dimension latitude   float nValues=720, evenlySpaced=true, averageSpacing=0.25
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float -89.875, 89.875
attribute latitude axis String Y
attribute latitude coverage_content_type String coordinate
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude valid_max float 89.875
attribute latitude valid_min float -89.875
dimension longitude   float nValues=1440, evenlySpaced=true, averageSpacing=0.25
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -179.875, 179.875
attribute longitude axis String X
attribute longitude coverage_content_type String coordinate
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable sla   double time, latitude, longitude
attribute sla _FillValue double NaN
attribute sla cell_methods String time: mean (interval: 1 day)
attribute sla colorBarMaximum double 2.0
attribute sla colorBarMinimum double -2.0
attribute sla comment String The sea level anomaly is referenced using the DTU15 mean sea surface height
attribute sla coverage_content_type String physicalMeasurement
attribute sla grid_mapping String crs
attribute sla ioos_category String Sea Level
attribute sla long_name String Sea Level Anomalies
attribute sla missing_value double NaN
attribute sla standard_name String sea_surface_height_above_sea_level
attribute sla units String m
attribute sla valid_max double 1.2852000000000001
attribute sla valid_min double -1.6175000000000002
variable ugos   double time, latitude, longitude
attribute ugos _FillValue double NaN
attribute ugos colorBarMaximum double 0.5
attribute ugos colorBarMinimum double -0.5
attribute ugos comment String The Mean Dynamic Topography (MDT) used in the derivation of the geostrophic currents is the MDT CNES/CLS 2013
attribute ugos ioos_category String Currents
attribute ugos long_name String Absolute Geostrophic Velocity: Zonal Component
attribute ugos missing_value double NaN
attribute ugos standard_name String surface_geostrophic_eastward_sea_water_velocity
attribute ugos units String m s-1
attribute ugos valid_max double 4.8483
attribute ugos valid_min double -4.7937
variable vgos   double time, latitude, longitude
attribute vgos _FillValue double NaN
attribute vgos colorBarMaximum double 0.5
attribute vgos colorBarMinimum double -0.5
attribute vgos comment String The Mean Dynamic Topography (MDT) used in the derivation of the geostrophic currents is the MDT CNES/CLS 2013
attribute vgos ioos_category String Currents
attribute vgos long_name String Absolute Geostrophic Velocity: Meridian Component
attribute vgos missing_value double NaN
attribute vgos standard_name String surface_geostrophic_northward_sea_water_velocity
attribute vgos units String m s-1
attribute vgos valid_max double 3.8059000000000003
attribute vgos valid_min double -4.8277

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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