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ERS-1 Resources

Read the latest ERS-1 news and access learning resources designed to help you optimize your Earth science research.

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These images show before and after: Before radiometric terrain correction (RTC), Klamath Mountains in northern California appear stretched on one side and compressed on the other (left). RTC (right) moves pixels to unstretch the mountains and adjusts pixel values to subtract the effect of slopes on brightness. Left: © JAXA/METI 2008; right: ASF DAAC 2016; Includes Material © JAXA/METI 2008.

Terrain-Correct CEOS Data

This data recipe guides users to terrain correct CEOS-formatted data granules for legacy platforms.
Data Recipe
Oct. 18, 2016
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ERS-1 News

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SAR land data image with globe pattern overlay

From ERS-1 to NISAR: 35 Years of SAR at ASF

August 2026 marks 35 years since the first downlink of synthetic aperture radar data to the Alaska SAR Facility. ASF has supported many missions and archived many Earth observations since then.
Blog
Aug. 17, 2026
Headshot of Dr. Zhong Lu, Southern Methodist University

Dr. Zhong Lu

Data from NASA’s ASF DAAC helps scientists like Dr. Zhong Lu develop satellite radar remote-sensing techniques for studying geohazards.
Data User Story
July 28, 2022
Headshot of li outside with arctic ice behind him

Dr. Xiaofeng Li

Who uses NASA Earth science data? Dr. Xiaofeng Li, to study atmospheric and oceanic processes.
Data User Story
April 22, 2021
headshot of french standing outside in front of a bulilding

Dr. Nancy French

Who uses NASA Earth science data? Dr. Nancy French, to study the effects of wildfires on forest ecosystems.
Data User Story
Dec. 22, 2020
Dr. Kristy Tiampo

Dr. Kristy Tiampo

More than half of Earth’s population lives in urban environments. NASA Earth science data help Dr. Kristy Tiampo explore the hazards that can impact these areas.
Data User Story
Dec. 22, 2020
In a landslide triggered by the 1994 Northridge, California, earthquake, this house crumbled near Golden, Colorado.

When Land Slides

Summer of 2001 was a season of devastating landslides.
Feature Article
July 28, 2020
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