Skip to main content
ALOS PALSAR land data
ALOS PALSAR ground receiver
ALOS PALSAR data

ALOS PALSAR RTC Project

ASF’s Radiometric Terrain Correction Project

 

RTC removes the geometric and radiometric distortions inherent in synthetic aperture radar (SAR) and the corrected PALSAR data are provided in a GIS-compatible GeoTIFF format. The release of ALOS PALSAR RTC products commenced in October 2014 and was completed a year later. Data used in the RTC project were Fine Beam (FBS, FBD) and Polarimetric (PLR) scenes over all global land areas except Antarctica, Greenland, Iceland, and northern Eurasia.

Radiometric Train Corrected Properties

Dataset PropertyHigh Resolution (RT1)Low Resolution (RT2)
Temporal Coverage2006-20112006-2011
Pixel spacing12.5 meter30 meter
File formatGeoTIFFGeoTIFF
Browse image formatGeoJPEG 1000 x 1000 pixelsGeoJPEG 1000 x 1000 pixels
Pixel valuesGamma nought power in 32-bit floating point formatGamma nought power in 32-bit floating point format
Files included in the package

  • Incidence Angle GeoTIFF, indicating the angle in radians for each pixel

    Layover/Shadow GeoTIFF, indicating where processing was impacted by layover or shadow

    Browse image in GeoJPEG format 1000 x 1000 pixels

    KMZ file with 30-m overlay

    Metadata in ISO 19115 format (xml file)

    Modified SRTM or NED DEM used for RTC processing in GeoTIFF format

     

  • Incidence Angle GeoTIFF, indicating the angle in radians for each pixel

    Layover/Shadow GeoTIFF, indicating where processing was impacted by layover or shadow

    Browse image in GeoJPEG format 1000 x 1000 pixels

    KMZ file with 30-m overlay

    Metadata in ISO 19115 format (xml file)

    Modified SRTM or NED DEM used for RTC processing in GeoTIFF format

     

ProviderJapan Aerospace Exploration Agency (JAXA).Japan Aerospace Exploration Agency (JAXA).
Date published:20142014

NOTES