Envisat ASAR IM Precision L1 [ASA_IMP_1P]

Data
Envisat ASAR IM Precision L1 [...

Envisat ASAR IM Precision L1 [ASA_IMP_1P]

Envisat ASAR Image Mode Precision Image

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Collection Description
Technical Details
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The ESA (A)SAR On-The-Fly (OTF) data processing and dissemination service allows end-users to gain direct access to the (A)SAR archive from the ERS-1, ERS-2 and Envisat Missions.

The data is collection based and allows data browse and download through the treeview as well as via geographical catalogue search based on area of interest and metadata. Data download is available via HTTPS, including bulk download functionality. ESA internal users can use their ESAAD account.

Envisat products can also be discovered through ESA's Exploring Earth service, which allows users to browse and download products among the available datasets from ESA and Third Party Missions and instruments, using various criteria (spatial, temporal).

For information on the (A)SAR On-The-Fly service please refer to the OTF User Manual.

New users can register an account on EO Sign In. For further information about the EO Sign In Service you can visit TellUs.

Should you need support to access the data, please contact EOHelp.

Available to Residents of the Following Countries

World Wide

Collection 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.

Technical Details

DATA SET SPECIFICATIONS

Spatial coverage:

90.00 N, 90.00 S, 180.00 W, 180.00 E

Temporal coverage:

2002-10-18T00:00:00.000Z - 2012-04-08T00:00:00.000Z

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

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