Data Set ID: 
SV12STM

SMAPVEX12 Soil Texture Map, Version 1

This data set consists of soil texture classification data derived from field surveys as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12). The soil texture classification map provides information about vegetation present in the study area.

Get Data

DOWNLOADING DATA VIA HTTPS

An Earthdata Login account is required to access these data. Please visit the Earthdata Login registration page to register for an account. Once you have logged in, data can be downloaded via a Web browser, command line, or client. For help with downloading data, please see Options Available for Bulk Downloading Data from HTTPS with Earthdata Login.

HTTPS

Geographic Coverage

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):
  • Soils > Soil Texture
Spatial Coverage:
  • N: 49.96, S: 49.44, E: -97.85, W: -98.51

Spatial Resolution:
  • 316 m x 316 m
Temporal Coverage:
  • 7 June 2012 to 19 July 2012
Temporal Resolution: Varies
Data Format(s):
  • ESRI Shapefile
Platform(s) FIELD SURVEYS
Sensor(s): SOIL SAMPLER
Version: V1
Data Contributor(s): McNairn, H., J. Powers, and G. Wiseman.

Data Citation

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 Soil Texture Map, Version 1. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/5694JSVXBA3A. [Date Accessed].

Back to Top

Collapse All / Open All

Detailed Data Description

This data set consists of soil texture classification data derived from field surveys as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12). The soil texture classification map provides information about vegetation present in the study area.

Format

Data are provided in an ESRI shapefile.

Background color on
File and Directory Structure

Files are available on the HTTPS site in the https://n5eil01u.ecs.nsidc.org/SMAP_VAL/SV12STM.001/ directory. The directory contains the following:

  • Data Files: ESRI Shapefile (.shp), Index file (.shx), Database file (.dbf), and a Projection file (.prj)
  • Metadata File: Extensible Markup Language (XML) file (.MET.xml)
Background color on
File Size

The data files range from approximately 26 KB to 12 MB.

Background color on
Spatial Coverage

Southernmost Latitude: 49.44°N
Northernmost Latitude: 49.96°N
Westernmost Longitude: 98.51°W
Easternmost Longitude: 97.85°W

Background color on
Spatial Resolution

The field survey methods provided approximately 25 to 30 inspection sites per section, or one site per 10 hectares (316 m). Thus, the spatial resolution for this data set is approximately 316 meters.

Background color on
Projection

Data are provided in Universal Transverse Mercator (UTM) North American Datum of 1983 (NAD 1983) coordinates.

Background color on
Temporal Coverage and Resolution

Data were obtained at various intervals, usually once per day, from 07 June through 19 July 2012.

Background color on
Parameter or Variable

The measured parameter for this data set is soil texture classification. Soil texture classification distinguishes between soil types, water, bedrock, and urban areas.

Parameter Range

Valid parameter values are as follows:

Soil texture class: 2–74

All values are not necessarily present.

Parameter Description

The data field C_SOIL contains the soil texture classification data as described in Table 1.

Table 1. Soil Texture Classification Designations
Class Code Class Name
2 Urban, modified or unclassified
6 Water
16 Salt flats
18 Sand and gravel
19 Eroded slopes
20 Sand and gravel (gleysols)
21 Sandy lacustrine
22 Variable textured alluvium (regosols)
26 Sandy eolian
27 Loamy till with water worked surfaces
28 Loamy till (black chernozems)
29 Loamy till (gleysols)
30 Sandy loam lacustrine
31 Loamy lacustrine
32 Strongly acidic clay till
33 Clayey lacustrine (black chernozems)
34 Sandy lacustrine (gleysols)
35 Shallow organic fen peat
36 Deep organic fen peat
37 Sandy loam lacustrine (gleysols)
38 Loam lacustrine (gleysols)
40 Clayey lacustrine (gleysols)
42 Clay over shale bedrock
48 Loamy till (dark grey chernozems)
49 Marsh
50 Highly calcareous loamy till (brunisols and dark grey chernozems)
51 Loamy till (luvisols)
52 Highly calcareous loamy till (black chernozems)
53 Acidic coarse loamy till
54 Weakly calcareous sandy loam till
55 Weakly calcareous sandy loam till (gleysols)
56 Extremely calcareous loamy till (black chernozems)
57 Extremely calcareous loamy till (black chernozems)
60 Variable textured alluvium (gleysols)
62 Highly calcareous loamy till (gleysols)
63 Clayey lacustrine (gleysols)
64 Clayey lacustrine (luvisols and dark grey chernozems)
68 Shallow organic forest peat
69 Deep organic forest or sphagnum peat
71 Precambrian bedrock
72 Sand and gravel with overlays
73 Limestone bedrock
74 Sand and gravel with overlays (gleysols)

Note: For information on additional parameter fields that are not provided in this document, please refer questions to Agriculture and Agri-Food Canada.

Background color on

Software and Tools

Various software packages can be used to read the ESRI shapefile, such as ArcGIS and MATLAB, or other similar GIS software.

Background color on

Data Acquisition and Processing

Soil texture maps were produced by detailed soil surveys carried out by Agriculture and Agri-Food Canada at a scale of 1:50,000 for the more homogeneous clay soils and 1:20,000 for the sandy and loam soils, which were landscapes that were more complex. The soil data used for the SMAPVEX campaign was sourced from the Canada-Manitoba Soil Survey Reports that cover most of the southern portion of Manitoba. The soils data that are available for the SMAPVEX study area were sourced from Soil Survey Reports (mbd60 and mbd20). Soil survey methods involved extensive field sampling, lab analysis, and air photo interpretation to map and document the soils in these areas. The field survey methods provided approximately 25 to 30 inspection sites per section, or one site per 10 hectares (316 m). Boundaries delineating map units in the survey area were compiled on an aerial photographic base at a scale of 1:20,000 (1 cm = 0.2 km).

For more information, visit the Agriculture and Agri-Food Canada Soil Survey Reports for Manitoba Web site.

Background color on

References and Related Publications

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

Acknowledgments: 

Agriculture and Agri-Food Canada are acknowledged for their support for the campaign.

Document Information

DOCUMENT CREATION DATE

December 2014

DOCUMENT REVISION DATE

N/A

No FAQs or How Tos available for this data set.

Access complete Knowledge Base

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