Global Seasonal Snow Classification System

Data Access

ARCSS Data Catalog

Gridded data available:

Unprojected, geographic coordinate data (ASCII and ArcInfo formats)

EASE-grid formatted versions of original data set (Binary and ArcInfo formats, GIF images)

See also: ftp://sidads.colorado.edu/pub/DATASETS/ARCSS/data/arcss045/.



Sample data rendering, original data, geographic coordinates

Sample data rendering, original data, geographic coordinates

Original data

720 cols x 360 rows; .5 deg cell size, spheroid undefined
Xmin = -180.000; Xmax = 180.000
Ymin = - 90.000; Ymax = 90.000

File name

geo_sclass.dat.gz (12k) ASCII file, row-major order, gzipped
geo_sclass.tar.gz (18k) ArcInfo 8.1 Grid, tarred and gzipped

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Sample data rendering, land/ocean mask, geographic coordinates

Sample data rendering, land/ocean mask, geographic coordinates

Land/Ocean Mask

720 cols x 360 rows; .5 deg cell size, spheroid undefined
Xmin = -180.000; Xmax = 180.000
Ymin = - 90.000; Ymax = 90.000

File name

landmask.txt.gz (8k) ASCII file, row-major order, gzipped
landmask.tar.gz (11k) ArcInfo 8.1 Grid, tarred and gzipped

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Sample data rendering, original data altered to include classification of Antarctica land area as ice, geographic coordinates

Sample data rendering, original data altered to include classification of Antarctica land area as ice, geographic coordinates

Data with Antarctica included

720 cols x 360 rows; .5 deg cell size, spheroid undefined
Xmin = -180.000; Xmax = 180.000
Ymin = - 90.000; Ymax = 90.000

File name

new_sclass.txt.gz (13k) ASCII file, row-major order, gzipped
new_sclass.tar.gz (16k) ArcInfo 8.1 Grid, tarred and gzipped

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Sample data rendering, cylindrical equal-area projection of original data

Sample data rendering, cylindrical equal-area projection of original data

Cylindrical equal-area projection of original data (EASE-grid)

1383 cols x 586 rows; 25,067.525 m cell size
Spherical model of Earth; radius = 6371.228 km
True at 30 deg N/S

File name

ml_sclass.bin.gz (16k) 8-bit binary file, gzipped
ml_sclass.tar.gz (22k) ArcInfo 8.1 Grid, tarred and gzipped
sc_global.gif (21k) GIF image

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Sample data rendering, lambert azimuthal equal-area projection of original data

Sample data rendering, Lambert azimuthal equal-area projection of original data

Lambert azimuthal equal-area projection of original data (EASE-grid)

721 cols x 721 rows; 25,067.525 m cell size
Spherical model of Earth; radius = 6371.228 km

File name

nl_sclass.bin.gz (22k) 8-bit binary file, gzipped
nl_sclass.tar.gz (31k) ArcInfo 8.1 Grid, tarred and gzipped
sc_nhem.gif (46k) GIF image

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University of Colorado at Boulder Cooperative Institute for Research in Environmental Sciences (CIRES)

The National Snow and Ice Data Center
Supporting Cryospheric Research Since 1976
449 UCB  University of Colorado  Boulder, CO 80309-0449
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