Data Overview

Explore Available NISAR Data Products and Resources

This artist's concept depicts NISAR in orbit over central and Northern California.

NISAR Sample
Data Product Suite

The project team has created a set of sample products using JAXA ALOS-1 PALSAR data as a surrogate for NISAR. The sample covers the full suite of planned products, from Level 0 raw data (in NISAR format) to Level 1 and Level 2. These data cover a smaller area than a NISAR frame, but the formate and metadata content is fully compatible with the data NISAR will produce after entering the science phase, allowing users to prepare their analysis tools well in advance of operations. In addition, a suite of products based on full-frame simulated radar data will be made available.

A rectangular satellite image overlaying a map of the same area with towns and interstates labeled. The town "Stockton" appears to the right of the satellite image.

NISAR UAVSAR
Sample Data Products

We also have created a set of prototype data products from the UAVSAR airborne L-band radar. The data have been altered to emulate NISAR data by changing the bandwidth and noise level. By comparing these to the full resolution, low noise UAVSAR data sets, users can better understand the nature of the NISAR data.

NISAR is suspended in orbit above Earth. NISAR's flight antenna system and antenna reflector are fully extended above the satellite.

NISAR UAVSAR
Product Guide

A guide for downloading data, processing notes, product descriptions, naming conventions, and known issues can be found here. Note: these products have incomplete metadata relative to the current product suites listed on this page but should have all the essential elements for interpreting and analyzing them.

a highly colorful field, from blues, purples, reds and browns, reside on a mostly sage green landscape with a black river meander running from upper left to lower right of center.

Other Products in
NISAR Format

Sentinel-1 Interferogram (BETA) products are prototype Level 2 NISAR-Format interferometric products produced using the ARIA Science Data System. The creation, discovery, and distribution of these products can help users with developing cloud-based processing and data management solutions. As such, these prototype products are not part of the ASF long-term archive and may become unavailable at any time as new SAR interferometric processing and delivery methods are explored. More information is available here.

An image of Earth's surface in false color, giving the surface a shimmering, rainbow-like appearance.

Other Data Sets
of Interest

This dataset is the first-of-its-kind spatial representation of multi-seasonal, global 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.

a black and white photograph comparing two images. On the left, a rectangular image, about four times as tall as it is wide has the letters "RSLC" printed above it. The word "Azimuth" with an arrow pointing up the y axis and the word "Range" with an arrow pointing to the right , along the Y-axis appear in the bottom left corner. The image itself is a satellite image of Earth's surface, showing what is perhaps an agricultural area. To the right is a square outline of a plane containing the same rectangular image but rotated 135 degrees to the left, so the top of the image is now pointing towards the lower-left corner of the square. The letters "GSLC" appear above the square, as the title. The words "Northing" and "Easting" are printed in the bottom left corner of this image along with arrows, as replacements for Azimuth and Range, respectively.

Range-Doppler Single Look Complex (RSLC) product and its geocoded version, i.e., Geocoded Single Look Complex (GSLC) simulated from UAVSAR observa-tions.

NASA/JPL-Caltech

An overview of UAVSAR's flight paths, and the NISAR simulated data that can be accessed in the UAVSAR-derived database.

NASA/JPL-Caltech

Sample image from Interferometric Synthetic Aperture Radar (InSAR) Sentinel-1 product.

NASA/JPL-Caltech