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Sentinel-1 Images Reveal Changes in the Earth’s Surface Over One Year

NASA's ASF DAAC released the Global Seasonal Sentinel-1 Interferometric Coherence and Backscatter Dataset.

A new set of satellite radar-derived images from Sentinel-1 provides a novel view of the face of Earth in unprecedented detail, advancing understanding of natural and human changes that occur over the course of a year. The data are archived by NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).

This dataset is the first-of-its-kind spatial representation of multi-seasonal, global synthetic aperture radar (SAR) repeat-pass interferometric coherence and backscatter signatures. Global coverage comprises all land masses and ice sheets from 82 degrees northern to 78 degrees southern latitude. The dataset is derived from high-resolution multi-temporal repeat-pass interferometric processing of about 205,000 Sentinel-1 Single-Look-Complex (SLC) data acquired in Interferometric Wide-Swath mode (Sentinel-1 IW mode) from 1-Dec-2019 to 30-Nov-2020.

The dataset was developed by Earth Big Data LLC and Gamma Remote Sensing AG, under contract for NASA’s Jet Propulsion Laboratory.

Details

Last Updated

Nov. 7, 2024

Published

March 11, 2022

Data Center/Project

Alaska Satellite Facility DAAC (ASF DAAC)