PALSAR-2_L2.2
- SAR
Data observed by PALSAR-2, an L-band Synthetic Aperture Radar (SAR) on board “Daichi-2 (ALOS-2)” developed by JAXA.
SAR can capture images under the same conditions as it observes the reflections of the radio waves emitted by itself. It actively emits radio waves, allowing it to observe the Earth’s surface without being limited by day or night conditions. Furthermore, since radio waves can penetrate clouds, surface observations are possible even in areas with cloud cover.
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| Satellite | ALOS-2 |
|---|---|
| Sensor | PALSAR-2 |
| Provider | JAXA |
| Satellite operational period | May 2014 ~ |
| Sensor overview *1 | - Resolution: 3-100 m - Swath: 50-490 km * For more details, search on Tellus Satellite Data Traveler and see the scene details for each piece of data. |
| Wavelength of sensor *2 | L-Band * For more details, search on Tellus Satellite Data Traveler and see the scene details for each piece of data. |
| Reference | https://www.eorc.jaxa.jp/ALOS/en/alos-2/a2_sensor_e.htm |
| Public availability status on Tellus (Period) | 2016 ~ Update in progress |
|---|---|
| Public availability status on Tellus (Region) | Japan Asia excluding Japan Oceania |
| Need to purchase | Can be used without purchase |
| Environment in which data can be accessed *3 | This can be used outside the Tellus environment |
| Data formatting | GeoTIFF |
| COG data availability | Yes |
| Notes | - ScanSAR is wide-area observation data of 350 to 490 km swath with a resolution of 60 m. - L2.2 product is a backscatter coefficient product with orthorectification and radiometric terrain correction. - In October 2024, JAXA released an updated version of the processing software for CEOS-ARD (Orthorectification and Radiometric Terrain Correction products) for ALOS-2/PALSAR-2 ScanSAR. The data using the updated product has been registered in Tellus since the July 2024 observation. Tellus does not plan to register the updates with the new product before July 2024 observation. Please refer to the following URL for product changes. |
| Examples/reference | |
| Terms of use | https://www.tellusxdp.com/traveler/dataset/45ff087d-be02-4788-bc4c-28cd947a1167/ |
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Data set details - Tellus TravelerNotes when using
- - You can use your derivative works generated in Tellus as you need. Refer here for more information.
- - Some data prohibits copying the original data to use outside of Tellus including just a part of, or formatted data that can be restored back to the original.
- - When using data in your own environment outside of Tellus, please notice that some of the data prohibit the usage or downloading. Please make sure to read the data details page.
- - You need an agreement in advance for commercial use. Please inquire Tellus office.
Reference for terms
- *1 Sensor overview
- The basics of satellite data — What it tells us, types, observation interval, resolution and use cases
- *2 Wavelength of sensor
- Basics of Synthetic Aperture Radar (SAR) - You can learn use cases, observation target, sensors, satellite, and wavelength - Sorabatake
- *3 Environment in which data can be accessed
- Available only in Tellus: You can use data only in Tellus for either development or analysis environment.
Available from outside Tellus: You can use data in your own environment through downloading and/or API.