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Data Set ID:
SV12LC

SMAPVEX12 Land Cover Classification Map, Version 1

This data set consists of land cover classification data derived from satellite imagery as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12). Images from the RADARSAT-2, Système Pour l'Observation de la Terre (SPOT-4), and DMC International Imaging Ltd (DMCii) of the study area were retrieved for the summer of 2012. The land use classification image provides information about vegetation present in the study area at a resolution of 20 meters.

This is the most recent version of these data.

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Data: Data integrity and usability verified

Documentation: Key metadata and user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools

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Parameter(s):
  • Land Use/Land Cover > Land Use Classes > Land Cover Classification
Data Format(s):
  • GeoTIFF
Spatial Coverage:
N: 50.21, 
S: 49.31, 
E: -98.27, 
W: -98.97
Platform(s):RADARSAT-2, SPOT-4
Spatial Resolution:
  • 20 m x 20 m
Sensor(s):HRVIR, SAR
Temporal Coverage:
  • 7 June 2012 to 19 July 2012
Version(s):V1
Temporal Resolution1 dayMetadata XML:View Metadata Record
Data Contributor(s):McNairn, H., J. Powers, and G. Wiseman.

Geographic Coverage
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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

McNairn, H., J. Powers, and G. Wiseman. 2014. SMAPVEX12 Land Cover Classification Map, Version 1. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/4FRNSHRF3TRY. [Date Accessed].

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Notice: 

The documentation for this data set was provided solely by the Principal Investigator(s), and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited.

Detailed Data Description

This data set consists of land cover classification data derived from satellite imagery as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12). Images from the RADARSAT-2, Système Pour l'Observation de la Terre (SPOT-4), and DMC International Imaging Ltd (DMCii) of the study area were retrieved for the summer of 2012. The land use classification image provides information about vegetation present in the study area at a resolution of 20 meters.

Format

Data are provided in Georeferenced Tagged Image File Format (GeoTIFF) called SV12LC_SMAPVEX_2012_Crop_Map.tif. 

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File and Directory Structure

The data is available on the HTTPS site in the https://n5eil01u.ecs.nsidc.org/SMAP_VAL/SV12LC.001/ directory.

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File Size

The data file is approximately 15 MB.

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Spatial Coverage

Southernmost Latitude: 49.31°N
Northernmost Latitude: 50.21°N
Westernmost Longitude: 98.97°W
Easternmost Longitude: 98.27°W

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Spatial Resolution

20 m

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Projection

Universal Transverse Mercator (UTM)

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Grid Description

Data are on a 20 m rectangular grid. Table 1 describes the grid dimensions.

Table 1. Grid Dimensions
Lower Left Corner 502067 Easting
Lower Left Corner 5461729 Northing
Pixel Size in East-West Direction 20 m
Pixel size in North-South direction 20 m
Number of Pixels 5099 x 6061
Projection UTM Zone 14U
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Temporal Coverage

Satellite images were obtained for 07 June through 19 July 2012.

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Parameter or Variable

The measured parameter for this data set is land cover classification. Land cover classification distinguishes between crop types, water, roads, and urban areas.

Parameter Range

Valid parameter values are as follows:

Land cover class: 0–220 

Parameter Description

Table 2. Land Cover Classification Designations
Class Code Class Name
0 Unclassified
20 Water
30 Barren
34 Urban
50 Shrubland
80 Wetland
110 Grassland
122 Forage Crops
131 Fallow
133 Barley
136 Oats
137 Rye
139 Triticale
146 Wheat
147 Corn
153 Canola/Rapeseed
154 Flaxseed
157 Sunflowers
158 Soybeans
162 Peas
177 Potatoes
179 Other Vegetables
181 Berries
194 Nursery
220 Broadleaf
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Software and Tools

Various software packages can be used to read the GeoTIFF data file, such as ArcGIS and MATLAB

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Data Acquisition and Processing

The land cover map was produced from a supervised classification of imagery acquired by SPOT-4, DMCii, and RADARSAT-2.

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References and Related Publications

McNairn, H., T. Jackson, G. Wiseman, S. Belair, A. Berg, P. Bullock, A. Colliander, M. Cosh, S. Kim, R. Magagi, M. Moghaddam, J. Adams, S. Homayouni, E. Ojo, T. Rowlandson, J. Shang, K. Goita, and M. Hosseini. 2013. The Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12): Pre-Launch Calibration and Validation of the SMAP Satellite. IEEE Trans. Geosci. Rem. Sens.

Contacts and Acknowledgments

Heather McNairn
Science and Technology Branch
Agriculture and Agri-Food Canada
960 Carling Avenue 
Ottawa, Ontario K1A 0C6 Canada 
e-mail: Heather.McNairn@agr.gc.ca
phone: +1 613-759-1815

Jarrett Powers
Science and Technology Branch
Agriculture and Agri-Food Canada
200-303 Main Street
Winnipeg, Manitoba R3C 3G7 Canada
e-mail: jarrett.powers@agr.gc.ca
phone: +1 204.259.4006

Grant Wiseman
Science and Technology Branch
Agriculture and Agri-Food Canada
200-303 Main Street
Winnipeg, Manitoba R3C 3G7 Canada
e-mail: grant.wiseman@agr.gc.ca
phone: +1 204.259.4006

Document Information

DOCUMENT CREATION DATE

March 2014

DOCUMENT REVISION DATE

N/A

How To

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