Minimize Level 1 Products (Images)

There are 18 Level 1 products for ASAR. These correspond to the five main measurement modes. For the IM, AP mode products there are five product types: complex, detected, geocoded medium resolution and browse while for WS mode there are three product types: complex, medium resolution and browse.  For GM mode there are two product types: detected and browse product types.  Finally for WV mode there three product types: SLC Imagette and Imagette Cross-Spectra, Imagette Cross-Spectra and a level 2 version of the Imagette Cross-Spectra.   A summary of the Level 1 Products is below.

Summary of ASAR Level 1 Products:
IM  ASA_IMS_1P Image Mode SLC Image
  ASA_IMP_1P Image Mode Precision Image
  ASA_IMG_1P Image Mode Geocoded Image
  ASA_IMM_1P Image Mode Medium Resolution Image (stripline)
  ASA_IM__BP Image Mode Browse Product (stripline)
AP  ASA_APS_1P Alternating Polarisation SLC Image
    ASA_APP_1P Alternating Polarisation Precision Image
  ASA_APG_1P Alternating Polarisation Geocoded Image
  ASA_APM_1P Alternating Polarisation Medium Resolution Image (stripline)
  ASA_AP__BP Alternating Polarisation Browse Product (stripline)
WS  ASA_WSS_1P Wide Swath Mode SLC Image
  ASA_WSM_1P Wide Swath Mode Medium Resolution Image (stripline)
  ASA_WS__BP Wide Swath Mode Browse Image (stripline)
GM  ASA_GM1_1P Global Monitoring Mode Image (stripline)
  ASA_GM__BP Global Monitoring Mode Browse Product (stripline)
WV ASA_WVI_1P Wave Mode SLC Imagette and Imagette Cross Spectra
  ASA_WVS_1P Wave Mode Imagette Cross Spectra
  ASA_WVW_2P Wave Mode Imagette Cross Spectra

 

Minimize Performance and Quality

A summary of ASAR performance at two different moments of the mission is provided by Miranda, et al, 2010, ‘Status of Envisat ASAR Instruments and Product’ , CEOS SAR workshop and by  Miranda,  et al,‘The Envisat ASAR Mission: A Look Back at 10 Years of  Operation’,  ESA Living Planet Symposium,  September 2013, Edinburgh, UK. 

 

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