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Envisat ASAR IM Precision L1 [ASA_IMP_1P]

Envisat ASAR Image Mode Precision Image

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Description

This is a multi-look, ground range, digital Precision Image generated from Level 0 data collected when the instrument was in Image Mode (7 possible swaths HH or VV polarisation). The product includes slant range to ground range correction. It is for users wishing to perform applications-oriented analysis and applies to multi-temporal imaging and to derive backscattering coefficients.

The stand-alone image is generated using the Range/Doppler algorithm. The processing uses up to date (at time of processing) auxiliary parameters corrected for antenna elevation gain, and range spreading loss. Engineering corrections and relative calibration are applied to compensate for well-understood sources of system variability. Absolute calibration parameters, when available (depending on external calibration activities) are provided in the product annotations.

This product provides a continuation of the ERS-SAR_PRI product.

Spatial Resolution: 30 m ground range x 30 m azimuth.

Details

DATA SET SPECIFICATIONS

Spatial coverage:
90 N, -90 S, -180 W, 180 E
Temporal coverage:
2002-10-18 - 2012-04-08
Date of launch:
2002-03-01
Operators:
ESA
Mission status:
completed
Orbit height:
800 km
Orbit type:
Sun-synchronous
Swath width:
5 - 1150 km

PROCESSING LEVEL

level 1b

APPLICABLE TERMS & CONDITIONS

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

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RESOURCES

Auxiliary Data

ASAR auxiliary data

Auxiliary Data

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Product Specifications

ASAR Products Specification - Revision C

Product Specifications

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Product Information

Envisat ASAR Sensor Performance, Products and Algorithms

Product Information

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Technical Note

Envisat ASAR Science and Applications

Technical Note

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User Manual

ASAR Product Handbook

User Manual

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Product Specifications

More ASAR Documents

Product Specifications

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Tools

ASAR Software Tools

Tools

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