ERS-1/2 SAR IM Precision L1 [SAR_IMP_1P]

ERS-1/2 SAR IM Precision Image Product

Data

28 Nov 2019

DOWNLOAD DATAData is available on EOCAT.

blue arrow DESCRIPTION

The SAR Precision product is a multi-look (speckle-reduced), ground range image acquired in Image Mode. This product type is most applicable to users interested in remote sensing applications, but is also suitable for calibration purposes. The products are calibrated and corrected for the SAR antenna pattern and range-spreading loss. Radar backscatter can be derived from the products for geophysical modelling, but no correction is applied for terrain-induced radiometric effects. The images are not geocoded, and terrain distortion (foreshortening and layover) has not been removed.

The numbering sequence relates to the satellite position and therefore differs between Ascending and Descending scenes.

Product characteristics:

  • Pixel size: 12.5 m (range - across track) x 12.5 m (azimuth - along track)
  • Scene area: 100 km (range) x at least 102.5 km (azimuth)
  • Scene size: 8000 pixels range x at least 8200 lines (azimuth)
  • Pixel depth: 16 bits unsigned integer
  • Total product volume: 125 MB
  • Projection: Ground-range
  • Number of looks: 3

blue arrow DETAILS

blue arrow DATA SET SPECIFICATIONS

Spatial coverage: 

82 N, -82 S, -180 W, 180 E

Temporal coverage:

1991-07-27 - 2011-07-04

Date of launch:
2002-03-01
Operators:
ESA
Mission status:
completed
Orbit height:
782 to 785 km
Orbit type:
Sun-synchronous
Swath width:
5 km
Resolution:

blue arrow PROCESSING LEVEL

level 1,

blue arrow APPLICABLE TERMS & CONDITIONS

Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions

READ T&C

blue arrow RESOURCES

ERS-1 auxiliary data
Auxiliary Data
ERS-2 auxiliary data
Auxiliary Data
ERS SAR Envisat Format Product Specification
Product Specifications
ERS-1 SAR Sensor Performance, Products and Algorithms
Other
ERS-2 SAR Sensor Performance, Products and Algorithms
Other
Next ESA SAR Toolbox (NEST)
Software Tool
Sentinel-1 Toolbox / Sentinel Application Platform (SNAP)
Software Tool
Derivation of Backscattering Coefficient Sigma 0 in ESA ERS SAR PRI Products
Other
Review of the impact of the ERS-2 Piloting Modes on the SAR Doppler Stability
Software Tool
More SAR Documents
Technical Note
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