Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991
Find JERS-1 Data

Japanese Earth Resources Satellite-1


JERS-1 data available through ASF DAAC.
      Coverage map showing JERS-1 data in the ASF archive

restricted data access agreement is required for researchers to get Level 0, Level 1, or SLC data.

Dataset Description: 

  • SAR — synthetic aperture radar
  • 1992-1998
  • Imagery coverage is worldwide
  • Datapool contains ASF standard beam odd frames, as well as the first and last frame of each imaged swath
  • Mosaics of global rainforests and the boreal forest
Data Format:

  • CEOS — Level 0 and Level 1 framed

Downloadable Products:

  • Level 0 (Unprocessed/Raw Data)
  • Level 1 (amplitude imagery — processed images)
  • Mosaics — open access
    • Amazon Low Flood
    • Amazon High Flood
    • North America Winter Texture
    • North America Summer Texture
    • North America Summer Backscatter

On Request — Contact User Support Office

  • Complex (Single Look Complex)
  • Level 1 (amplitude imagery — even frames)

JERS-1 SAR Technical Specs

Standard Mode
Frequency1.3GHz L-band
Spatial Resolution18m
Swath Width75km
Off-Nadir Angle35°

JERS-1 SAR Summary

JERS-1 Synthetic Aperture Radar


The JERS-1 SAR is a high-resolution, all-weather imaging radar. Its primary objective was gathering data on global land masses while conducting observation for land surveys, agriculture, forestry, fisheries, environmental protection, disaster prevention, and coastal surveillance.


JERS-1 (Japanese Earth Resources Satellite) was launched by the Japan Aerospace Exploration Agency (JAXA), aboard a Japanese H-1 launcher, to provide global and repetitive observations of the environment using techniques that allow imaging to take place in all weather conditions.


The JERS-1 Global Forest Mapping Program mapped important forests of the world: Southeast Asia, Africa, Central America, South America (Amazon Basin), and Boreal North America. ASF distributes the Amazon and Boreal forest SAR mosaics.

Get SAR Data

Get SAR Data

Select and download SAR data online using Vertex.

Use the ASF API for downloading SAR data via a command line.