The process of getting data has improved!  Click the Download Data tab below to view all options for retrieving data. Read all about the new layout here.
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.

STANDARD Level of Service

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

See All Level of Service Details

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

Download Via HTTPS: An Earthdata Login account is required to access these data.

Once you have logged in, you will be able to click and download files via a Web browser. There are also options for downloading via a command line or client. For more detailed instructions, please see Options Available for Bulk Downloading Data from HTTPS with Earthdata Login.

Earthdata Search: This application allows you to search, visualize, and access data across thousands of Earth science data sets. Additional customization services are available for select data sets, including subsetting, reformatting, and reprojection.

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].

Back to Top

Collapse All / Open All
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. 

Background color on
File and Directory Structure

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

Background color on
File Size

The data file is approximately 15 MB.

Background color on
Spatial Coverage

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

Background color on
Spatial Resolution

20 m

Background color on
Projection

Universal Transverse Mercator (UTM)

Background color on
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
Background color on
Temporal Coverage

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

Background color on
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
Background color on

Software and Tools

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

Background color on

Data Acquisition and Processing

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

Background color on

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

How do I programmatically access data using spatial and temporal filters?
The Common Metadata Repository (CMR) is a high-performance metadata system that provides search capabilities for data at NSIDC. A synchronous REST interface was developed which utilizes the CMR API, allowing you to ... read more
Access complete Knowledge Base

Questions? Please contact:
NSIDC User Services
Phone: 1 303 492-6199
Email: nsidc@nsidc.org