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  • ALOS PALSAR products

ALOS PALSAR products

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  • How to Access Data
  • Available to Residents of the Following Countries
  • Collection Description
  • Technical Details
  • Having Problems Accessing Data?
  • Resources
  • Discover Latest Data

How to Access Data

Fast Registration with Approval (Restrained): Access to this data collection is provided after registering and receiving approval from ESA. Approval is typically granted within a few days. Once authorised, you will receive credentials to access and download the data from the designated dissemination service.

Access Steps:

  1. Create or log in to EO Sign In - Register or log in to EO Sign In - Users are required to provide their institutional email address when registering a new account.
  2. Go to the ESA User Services Portal and submit the form for accessing the data.
  3. The request will be evaluated by ESA, which normally takes up to 2 days.
  4. Upon successful evaluation, you will receive a confirmation email.
  5. Go to the EO User Portal to check the status of your request
  6. A second email will follow with details of where to download the data.
  7. Search and download the products from the Dissemination Service.
Read More

All ALOS-1 products are freely accessible in accordance with ESA's Earth observation data policy.

Available to Residents of the Following Countries

World Wide

Collection Description

The dataset contains all ESA acquisitions over the ADEN zone (Europe, Africa and the Middle East) plus some products received from JAXA over areas of interest around the world. Further information on ADEN zones can be found in this technical note.

ALOS PALSAR products are available in following modes:

  • Fine Beam Single polarisation (FBS), single polarisation (HH or VV), swath 40-70 km, resolution 10 m, temporal coverage from 02/05/2006 to 30/03/2011.
  • Fine Beam Double polarisation (FBD), double polarisation (HH/HV or VV/VH), swath 40-70 km, resolution 10 m, temporal coverage from 02/05/2006 to 30/03/2011.
  • Polarimetry mode (PLR), with four polarisations simultaneously: swath 30 km, resolution 30 m, temporal coverage from 26/08/2006 to 14/04/2011.
  • ScanSAR Burst mode 1 (WB1), single polarisation: swath 250-350 km, resolution 100 m, temporal coverage from 12/06/2006 to 21/04/2011.

Following processing levels are available:

  • RAW (Level 1.0): Raw data generated by every downlink segment and every band. Divided into an equivalent size to one scene
  • SLC (Level 1.1): Slant range single look complex product. Not available for WB1
  • GDH (Level 1.5): Ground range Detected, Normal resolution product
  • GEC (Level 1.5): Geocoded product.

The table summarises the ALOS PALSAR offer.

Instrument modeProduct typeProcessing level descriptionJAXA processing level equivalent
Fine Beam Single polarisation (HH or VV)FBS_RAW_0PRaw data generated by every downlink segment and every band. Divided into an equivalent size to one scene1.0
FBS_GDH_1PGround range Detected, Normal resolution product1.5
FBS_GEC_1PGeocoded product1.5
FBS_SLC_1PSlant range single look complex product1.1
Fine Beam Double polarisation (HH/HV or VV/VH)FBD_RAW_0PRaw data generated by every downlink segment and every band. Divided into an equivalent size to one scene1.0
FBD_GDH_1PGround range Detected, Normal resolution product1.5
FBD_GEC_1PGeocoded product1.5
FBD_SLC_1PSlant range single look complex product1.1
Polarimetry mode (4 polarisation)PLR_RAW_0PRaw data generated by every downlink segment and every band. Divided into an equivalent size to one scene1.0
PLR_GDH_1PGround range Detected, Normal resolution product1.5
PLR_GEC_1PGeocoded product1.5
PLR_SLC_1PSlant range single look complex product1.1
ScanSAR Burst mode 1 (single polarisation)WB1_RAW_0PRaw data generated by every downlink segment and every band. Divided into an equivalent size to one scene1.0
WB1_GDH_1PGround range Detected, Normal resolution product1.5
WB1_GEC_1PGeocoded product1.5

Technical Details

DATA SET SPECIFICATIONS

Digital Object Identifier (DOI):
  • https://doi.org/10.5270/AL1-d9d4874
Spatial coverage:
90 N, 90 S, 180 W, 180 E
Temporal coverage:
2006-05-02 - 2011-04-14
Date of launch:
2006-01-24
Operators:
JAXA
Mission status:
Completed
Orbit height:
691.65 km
Orbit type:
Sun-synchronous
Swath width:
30 km (PLR), 40-70 km (FBD and FBS), 250 km (WB1)
Resolution:
Very High Resolution - VHR (0 - 5) m, Medium Resolution - MR (20 - 500) m
Wavelengths:
L-Band (19.4 - 76.9) cm
Product types:
FBS_RAW_0P, FBS_GDH_1P, FBS_GEC_1P, FBS_SLC_1P, FBD_RAW_0P, FBD_GDH_1P, FBD_GEC_1P, FBD_SLC_1P, PLR_RAW_0P, PLR_GDH_1P, PLR_GEC_1P, PLR_SLC_1P, WB1_RAW_0P, WB1_GDH_1P, WB1_GEC_1P

PROCESSING LEVEL

level 1, multiple

APPLICABLE TERMS & CONDITIONS

Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
READ T&C

Having Problems Accessing Data?

How to access Earth observation data distributed by ESA - Fast Registration

Researchers can quickly obtain datasets from ESA’s Third Party Missions and Heritage Missions on a free basis, by using the Fast Registration mechanism.

How do I access the ESA Third Party Mission (TPM) data?

Access ESA Third Party Mission (TPM) data by applying with 'Fast Registration with Immediate Access' or 'Fast Registration with Approval.

What is the ESA online On-The-Fly (OTF) dissemination service?

Explore ESA's On-The-Fly (OTF) dissemination service, featuring ERS/Envisat (A)SAR and ALOS PALSAR products enabling immediate downloads upon request with an active EO Sign-In account

SEE FULL FAQ

Resources

Technical Note

ADEN zone definition

Technical Note

Download
Product Specifications

ESA product handbook

Product Specifications

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Product Specifications

ESA CEOS product format specification

Product Specifications

Download
Product Specifications

JAXA Level 1.0 data format

Product Specifications

Download
Product Specifications

JAXA Level 1.1 and 1.5 data format

Product Specifications

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Software Tools

ALOS Software tools

Software Tools

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