Alternating Polarisation Mode Precision Image (ASA_APP_1P) product
Entry ID: ASA_APP_1P

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Summary
Abstract: This is a stand-alone multi-look, ground range, narrow swath digital image
generated using the SPECAN 2.6.1.2.4. algorithm and the most up to date
auxiliary information available at the time of processing. Engineering
corrections and relative calibration (antenna elevation gain, range spreading
loss) are applied to compensate for well-understood sources of system
variability. Generation of this product uses a technique to allow half the
looks of an image to be acquired in horizontal polarisation and the other half
in vertical polarisation and processed to 30-m resolution (with the exception
of IS1). Absolute calibration parameters, when available (depending on external
calibration activities), shall be provided in the product annotations.

More Information:
"http://earth.esa.int/"

[Summary Extracted from the Envisat Product Handbook]

Related URL
Link: GET DATA
Description: View Envisat quick-look images and metadata. Order data.


Link: VIEW PROJECT HOME PAGE
Description: Envisat Mission Home Page.


Link: VIEW RELATED INFORMATION
Description: Envisat User Services. Help in Ordering Envisat Products.


Geographic Coverage
 N: 72.0 S: 35.0  E: 60.0  W: -27.0

Data Set Citation
Dataset Originator/Creator: ESA Envisat
Dataset Title: Alternating Polarisation Mode Precision Image (ASA_APP_1P) product
Dataset Publisher: ESA Envisat
Online Resource: http://earth.esa.int/#eph.asar.prodalg.levb.prod.engquant.img.preci...


Location Keywords
CONTINENT > EUROPE


Data Resolution
Latitude Resolution: 100 km
Longitude Resolution: 56 Km - 100 Km


Science Keywords
SPECTRAL/ENGINEERING >RADAR >RADAR IMAGERY    [Definition]
SPECTRAL/ENGINEERING >RADAR >RETURN POWER    [Definition]
SPECTRAL/ENGINEERING >RADAR >SENSOR COUNTS    [Definition]


ISO Topic Category
IMAGERY/BASE MAPS/EARTH COVER


Platform
ENVISAT >Environmental Satellite    [Information]


Instrument
ASAR >Advanced Synthetic Aperature Radar    [Information]


Originating Center


Data Center
Earthnet Online, European Space Agency    [Information]
Data Center URL: http://earth.esa.int
Dataset ID: ASA_APP_1P

Data Center Personnel
Name: ESA EARTH OBSERVATION HELPDESK
Phone: +39 06 94180777
Fax: +39 06 94180292
Contact Address:
ESA/ESRIN
Via Galileo Galilei, CP 64
City: Frascati
Postal Code: I-00044
Country: Italy



Distribution
Distribution_Size: Up to 268 Mbytes


Personnel
ESA EARTH OBSERVATION HELPDESK
Role: TECHNICAL CONTACT
Phone: +39 06 94180777
Fax: +39 06 94180292
Contact Address:
ESA/ESRIN
Via Galileo Galilei, CP 64
City: Frascati
Postal Code: I-00044
Country: Italy



Creation and Review Dates
DIF Creation Date: 2003-05-20
Last DIF Revision Date: 2009-04-27

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