Data Set ID:

SMEX02 European Remote Sensing Satellite (ERS-2) AMI Data, Iowa, Version 1

This data set consists of browse images acquired by the C-band Active Microwave Instrument (AMI) onboard the European Remote Sensing Satellite 2 (ERS-2) and provides only a general quality assessment of the ERS-2 AMI data.

Get Data


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.


Geographic Coverage

  • Microwave > Microwave Imagery
Spatial Coverage:
  • N: 42.389, S: 41.308, E: -93.017, W: -93.913

Spatial Resolution: Not Specified
Temporal Coverage:
  • 31 May 2002 to 13 September 2002
Temporal Resolution: Not specified
Data Format(s):
  • JPEG
Platform(s) ERS-2
Sensor(s): AMI
Version: V1
Data Contributor(s): Thomas Jackson, Rogier Van der Velde

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.

Jackson, T. and R. Van der Velde. 2004. SMEX02 European Remote Sensing Satellite (ERS-2) AMI Data, Iowa, Version 1. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: [Date Accessed].

Back to Top

Collapse All / Open All

Detailed Data Description


Data are JPEG format image files.

Background color on
File Naming Convention

The image files use the convention: ERSdaacmmddyy.jpg. For example, the file acquired on 7 July 2002 is "ERSdaac070502.jpg."

Background color on
File Size

File sizes range from 4.07 MB to 4.67 MB.

Background color on

Total volume of combined files is 13.3 MB.

Background color on
Spatial Coverage

Southernmost Latitude: 41.308° N
Northernmost Latitude: 42.389° N
Westernmost Longitude: -93.913° W
Easternmost Longitude: -93.017° W

The spatial coverage of each scene is shown in Table 1.

Table 1. Coverage of the ERS-2 AMI scenes
date latitude longitude latitude longitude
31 May 42.216°N 93.963°W 41.179°N 93.063°W
5 July 42.389°N 93.913°W 41.308°N 93.017°W
13 Sept 42.372°N 93.935°W 41.294°N 93.041°W

Spatial Resolution

Pixel spacing is 12.5 m.

Background color on
Temporal Coverage

Data were gathered on 31 May, 5 July, and 13 September 2002.

Background color on
Parameter or Variable

C-band radar backscatter browse images.

Sample Data Record

The following is a small sample of the image file "ERSdaac070502.jpg."

sample PRI image

Background color on

Software and Tools

Background color on

Data Acquisition and Processing

Sensor or Instrument Description

The C-band Active Microwave Instrument (AMI) onboard the ERS-2 space platform provides backscatter measurements around incidence angles of 23° and at VV polarization.

Background color on

References and Related Publications

Contacts and Acknowledgments

Thomas Jackson, Rogier Van der Velde
U.S. Department of Agriculture (USDA) Agriculture Research Service (ARS) National Soil Tilth Laboratory

Document Information


June 2004

No technical references available for this data set.
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