Dataset

The Japan Aerospace Exploration Agency (JAXA) is pleased to provide public release of ALOS-2 PALSAR-2 ScanSAR Level 2.2 (L2.2) data. Currently, past data from August 2014 to June 2024 is available, and new observation data will be processed in units of 10 days per month and published sequentially.

The ScanSAR products are provided as Normalised Radar Backscatter (NRB), formatted in full compliance with the Committee on Earth Observation Satellites (CEOS) threshold specifications for Analysis Ready Data (CEOS-ARD NRB). The CEOS ARD format aims to reduce the data processing load for users unfamiliar with satellite data and to improve data machine-readability and analysis-readiness.

For more information about ALOS-2 PALSAR-2, please refer to this URL

The new PALSAR-2 ScanSAR products have been developed to conform with the CEOS-ARD format specifications for Normalised Radar Backscatter (CEOS-ARD NRB). The NRB products have been subject to ortho-rectification and Radiometric Terrain Correction (RTC), and are provided in the Gamma-0 backscatter convention, which mitigates the variations from diverse observation geometries. The products include HH and HV polarisation backscatter, local incidence angle image and data mask.

For more information about the CEOS-ARD NRB format, please refer to the Product Family Specification (PFS) document at the following URL.

The PALSAR-2 ScanSAR NRB product is defined as Level 2.2 (L2.2) in accordance with the product levels of PALSAR-2 standard products. Please refer to the following product description for stored data and formatting.

The processing software of the Level 2.2 (L2.2) product has been updated after observation data from July 2024. Please refer to the following product description for stored data and formatting.

Anyone can use this data free of charge, subject to the terms of use for each platform introduced in "3. Data Availability".