Envisat ASAR AP Single-Look Complex L1 [ASA_APS_1P]

Envisat ASAR Alternating Polarisation Mode Single-Look Complex

Data

26 Nov 2019

DOWNLOAD DATAData is available on EOCAT.

blue arrow DESCRIPTION

This product is a complex, slant-range, digital image generated from Level 0 data collected when the instrument is in Alternating Polarisation mode. (7 possible swaths). It contains two CO-registered images corresponding to one of the three polarisation combination submodes (HH and VV, HH and HV, VV and VH).

In addition, the product uses the Range Doppler algorithm and the most up to date processing parameters available at the time of processing. It can be used to derive higher level products for SAR image quality assessment, calibration and interferometric applications, if allowed by the instrument acquisition.

A minimum number of corrections and interpolations are performed on the data in order to allow the end-user maximum freedom to derive higher level products. Complex output data is retained to avoid loss of information. Absolute calibration parameters are available depending on external calibration activities and are provided in the product annotations.

Spatial Resolution: approximately 8m slant range x approximately 4m azimuth

blue arrow DETAILS

blue arrow DATA SET SPECIFICATIONS

Spatial coverage: 

90 N, -90 S, -180 W, 180 E

Temporal coverage:

2002-11-15 - 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
Resolution:

High Resolution - HR (5 - 20 m)

blue arrow PROCESSING LEVEL

level 1b,

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

ASAR auxiliary data
Auxiliary Data
ASAR Products Specification - Revision C
Product Specifications
Envisat ASAR Sensor Performance, Products and Algorithms
Product Information
Range Doppler Algorithm
Technical Report
ASA_APS_1P File Structure
Product Specifications
Envisat ASAR Science and Applications
Technical Note
ASAR Level 1 Algorithms
Product Specifications
ASAR Product Handbook
User Manual
ASAR Product Quality Disclaimer
ASAR Products Anomalies
More ASAR Documents
Product Specifications
ASAR Software Tools
Tools
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