- Envisat ASAR IM Precision L1 [...
Envisat ASAR IM Precision L1 [ASA_IMP_1P]
Envisat ASAR Image Mode Precision Image
How To Access Data
EO Sign In Authentication (Open)
- Go to the Dissemination Service
- Find the product you want via a map using the catalogue search
- Register or log in to EO Sign In
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 EO Catalogue (EO CAT), 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 FAQ page.
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.
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.
DATA SET SPECIFICATIONS
APPLICABLE TERMS & CONDITIONS
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.
ASAR Auxiliary Data
ASAR Products Specification - Revision C
Envisat ASAR Sensor Performance, Products and Algorithms
Envisat ASAR Science and Applications
ASAR Product Handbook
More ASAR Documents
ASAR Software Tools
ESA Earth Observation User Services Portal
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