Dataset
ALOS series Open and Free Data
1. Updates
| Jul. 03, 2026 | ALOS-2/PALSAR-2 ScanSAR data for the Earthquake in Venezuela released for free. |
|---|---|
| Apr. 01, 2025 | End of Alternative provision of ALOS-2 Open and Free data (PALSAR-2 ScanSAR L1.1) service. |
| Feb. 05, 2025 | Alternative provision of ALOS-2 Open and Free data (PALSAR-2 ScanSAR L1.1) due to G-Portal outage (updated on Feb. 05, 2025) |
| Oct. 18, 2024 | Alternative provision of ALOS-2 Open and Free data (PALSAR-2 ScanSAR L1.1) due to G-Portal outage (updated on Oct. 31, 2024) |
| Oct. 4, 2024 | Announcement of PALSAR-2 ScanSAR L2.2 Product software update document was uploaded. |
| Jul. 24, 2024 | Added to about the L1.1/L2.2 processing and product release schedule for new PALSAR-2 ScanSAR observation data for "ALOS-2 / PALSAR-2 Product" | Sep. 15, 2023 | PALSAR-2 ScanSAR L1.1/L2.2 products for the following period have been updated from G-Portal. Obs. period: July 2023 |
| Aug. 07, 2023 | PALSAR-2 ScanSAR L1.1/L2.2 products for the following period have been updated from G-Portal. Obs. period: March 2023 - June 2023 |
| Apr. 11, 2023 | PALSAR-2 ScanSAR L1.1/L2.2 products for the following period are now available from G-Portal. Obs. period: August 2014 - February 2023 |
| Mar. 01, 2023 | ALOS-2/PALSAR-2 ScanSAR data for the Turkey earthquake released for free. |
| Nov. 07, 2022 | PALSAR-2 ScanSAR Level 2.2 (L2.2) products are now available to the public. |
| Jul. 27, 2022 | Trial release of PALSAR-2 Level 2.2 (L2.2) data has started. |
2. Introduction of each Open & Free data type
1) ALOS-2 / PALSAR-2 Product
For details, please see this link
24 June 2026: Earthquake in Venezuela
At approximately 18:04 local time on 24 June 2026, earthquakes measuring M7.2 and M7.5 struck Venezuela (U.S. Geological Survey: USGS), causing damage to buildings and other destruction in various areas.
In response to a request from the International Charter on Space and Major Disasters (an international framework for the mutual provision of Earth observation satellite imagery during disasters), JAXA conducted emergency observations using ALOS-2 on 29 and 30 June and provided the data.
To ensure that the analysis of this emergency observation data contributes to disaster mitigation and prevention, we are releasing L1.1 (CEOS format) and L2.1 (GeoTIFF) data, as well as the archive data necessary for interferometric analysis and change detection.
Please note that this publicly released data is intended for non-commercial use only, including public use by national and local governments, and research use by universities and other institutions. Those wishing to use this data for commercial purposes should contact JAXA.
| Obs date | Path | Frame | Download | Beam | A/D | archive |
|---|---|---|---|---|---|---|
| 2026/6/29 | 135 | 3400 | L1.1(CEOS) L2.1(GeoTIFF) |
W2 | Desc | 2026/6/15 |
| 2026/6/30 | 40 | 0200 | L1.1(CEOS) L2.1(GeoTIFF) |
W2 | Asc | 2025/1/14 |
Therefore, file size of L1.1 data is quite huge (30 GB for single polarization and 60 GB for dual polarization data).
You can view an example of an analysis of this data in the "2026 Venezuela Earthquake Observation Results".
Earthquakes in southeastern Turkey in 2023
JAXA has responded to Earthquake in Turkey and Syria, and conducted emergency disaster observations and provides data as requested by Disaster and Emergency Management Authority(AFAD), Ministry of Interior in Turkey, through Sentinel Asia and the International Disaster Charter.
1. JAXA G-Portal
L1.1 data is available free of charge from G-Portal.
Please click here to see how to download the product on G-Portal (gif animation).
| Obs date | Path | Beam | Pol | R/L | A/D | archive |
|---|---|---|---|---|---|---|
| 2023/2/11 | 185 | W2 | HH+HV | R | Asc | 2022/9/10 |
| 2023/2/12 | 76 | W2 | HH+HV | R | Desc | 2022/9/11 |
| 2023/2/15 | 183 | W2 | HH+HV | R | Asc | 2019/9/18 |
| 2023/2/17 | 77 | W2 | HH | R | Desc | 2022/9/16 |
| 2023/2/20 | 184 | W2 | HH | R | Asc | 2022/9/5 |
| 2023/2/22 | 78 | W2 | HH | R | Desc | 2022/9/7 |
Therefore, file size of L1.1 data is quite huge (30 GB for single polarization and 60 GB for dual polarization data).
2. Google Earth Engine
https://code.earthengine.google.com/18927a33b2f3197e12bdead34062581d
3. AWS Open Repository
Registry of Open Data on AWS
https://github.com/awslabs/open-data-registry/blob/main/datasets/jaxa-alos-palsar2-scansar.yaml
Level1.1 and Level2.1 orthorectified product (without slope correction) is also available on Amazon Web Service (AWS).
Please click here [L1.1 , L2.1].
Analysis results using these PALSAR-2 data can be seen in "Updates on Earth".
2) ALOS / PALSAR Product
Detailed information will be announced on this web site in the future.
3) ALOS / AVNIR-2 Product
Detailed information will be announced on this web site in the future.