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ERDDAP > info > drifter_currentvariance

Title Sum-
Institution Dataset ID
 data       graph  M    files  Global Drifter Program - Climatology - Current Variance    ?   F   I   M   background (external link) RSS Subscribe
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL author String Laurindo, Mariano, and Lumpkin (2017), Deep-Sea Res. I, doi:10.1016/j.dsr.2017.04.009
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL Conventions String COARDS, CF-1.10, ACDD-1.3
attribute NC_GLOBAL creator_email String aoml.webmaster at
attribute NC_GLOBAL creator_name String NOAA/AOML & Univ. Miami
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL datadate String Climatology uses data through 28-Feb-2023
attribute NC_GLOBAL date2 String File created 21-Aug-2023 09:38:21
attribute NC_GLOBAL description String Surface Current Variance from Drifter Data
attribute NC_GLOBAL Easternmost_Easting double 179.875
attribute NC_GLOBAL geospatial_lat_max double 84.875
attribute NC_GLOBAL geospatial_lat_min double -72.875
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 infoUrl String (external link)
attribute NC_GLOBAL institution String NOAA/AOML & Univ. Miami
attribute NC_GLOBAL keywords String angle, aoml, atlantic, axis, data, days, degree, drifter, drifter-days, ellipse, laboratory, latitude, longitude, mean, meridional, meteorological, miami, noaa, number, oceanographic, orientation, per, prime, semimajor, semiminor, square, squared, u-prime-squared, university, Up2bar, v-prime-squared, variance, velocity, Vp2bar, zonal
attribute NC_GLOBAL license String Creative Commons Attribution 4.0 ( This study used data collected and made freely available by the NOAA Global Drifter Program ( accessed from
attribute NC_GLOBAL Northernmost_Northing double 84.875
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -72.875
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String Current variance (eddy kinetic energy) derived from residuals with respect to the time-mean, seasonal, spatial gradient, and SOI-related currents
attribute NC_GLOBAL title String Global Drifter Program - Climatology - Current Variance
attribute NC_GLOBAL version String 3.10
attribute NC_GLOBAL Westernmost_Easting double -179.875
dimension longitude   double nValues=1440, evenlySpaced=true, averageSpacing=0.25
attribute longitude _ChunkSizes uint 1440
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -179.875, 179.875
attribute longitude axis String X
attribute longitude coordinates String Lat
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude valid_max double 179.875
attribute longitude valid_min double -179.875
dimension latitude   double nValues=632, evenlySpaced=true, averageSpacing=0.25
attribute latitude _ChunkSizes uint 632
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double -72.875, 84.875
attribute latitude axis String Y
attribute latitude coordinates String Lat
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 double 84.875
attribute latitude valid_min double -72.875
variable Up2bar   double longitude, latitude
attribute Up2bar colorBarMaximum double 0.5
attribute Up2bar colorBarMinimum double 0.0
attribute Up2bar long_name String Zonal Velocity Variance, mean(u-prime-squared)
attribute Up2bar units String (meters per second)^2
attribute Up2bar valid_max double 0.47488
attribute Up2bar valid_min double 3.5059E-4
variable Vp2bar   double longitude, latitude
attribute Vp2bar colorBarMaximum double 0.4
attribute Vp2bar colorBarMinimum double 0.0
attribute Vp2bar long_name String Meridional Velocity Variance, mean(v-prime-squared)
attribute Vp2bar units String (meters per second)^2
attribute Vp2bar valid_max double 0.38285
attribute Vp2bar valid_min double 3.563E-4
variable rA   double longitude, latitude
attribute rA colorBarMaximum double 0.5
attribute rA colorBarMinimum double 0.0
attribute rA long_name String Variance Ellipse semimajor axis
attribute rA units String (meters per second)^2
attribute rA valid_max double 0.4554
attribute rA valid_min double 5.1876E-4
variable rB   double longitude, latitude
attribute rB colorBarMaximum double 0.35
attribute rB colorBarMinimum double 0.0
attribute rB long_name String Variance Ellipse semiminor axis
attribute rB units String (meters per second)^2
attribute rB valid_max double 0.32858
attribute rB valid_min double 2.4296E-4
variable angle   double longitude, latitude
attribute angle colorBarMaximum double 90.0
attribute angle colorBarMinimum double -90.0
attribute angle long_name String Orientation Angle of Variance Ellipse
attribute angle units String degrees: 0=east/west, 45=northeast/southwest, 90=north/south
attribute angle valid_max double 89.9995
attribute angle valid_min double -89.9998
variable N   double longitude, latitude
attribute N colorBarMaximum double 2000.0
attribute N colorBarMinimum double 0.0
attribute N long_name String Number of drifter-days per square degree
attribute N units String drifter-days per square degree
attribute N valid_max double 1712.8255
attribute N valid_min double 13.0507

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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