PALSAR-2 L2.2 Product

1. Updates

Jul. 27, 2022
PALSAR-2 L2.2 products are released.

2. Overview

The Japan Aerospace Exploration Agency (JAXA) has released the scene-by-scene of the Normalised Radar Backscatter (NRB), for ALOS-2/PALSAR-2 with ortho-rectified and radiometric terrain corrected product as Level 2.2.

JAXA has been working on the development of the Committee on Earth Observation Satellites (CEOS) Analysis Ready Data (CEOS-ARD) product, which was initiated by CEOS to improve user-friendliness and make the data machine-readable and analysis-ready.
In particular, the "CEOS ARD for Land" (CARD4L) is defined as a product suitable for use on land applications. The data format of the PALSAR-2 Level 2.2 product conforms the CARD4L NRB. For more information on CEOS-ARD, please refer to the following URL.

3. Product type

3.1 Normalised Radar Backscatter (CARD4L-NRB)

The CARD4L-NRB product is subject to Radiometric Terrain Correction (RTC) and is provided in the gamma-0 backscatter convention, which mitigates the variations from diverse observation geometries.
For more information on CARD4L-NRB, please refer to the document at the following URL.
The CARD4L-NRB product is defined as Level 2.2 (L2.2) in accordance with the product level of PALSAR-2 standard products. Please refer to the following product description for stored data and formatting.

4. Data Availability

The created products are available on the Globe Portal System (G-Portal). Please refer to the following website for information on how to use G-Portal and the terms of use of the data.

5. Contact

ALOS-2/ALOS Science Project

Earth Observation Research Center (EORC)

Japan Aerospace Exploration Agency (JAXA)


Please refer to FAQ before sending an email.
Please contact us in English or Japanese.