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    24-Jul-2014
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Geolocation Grid ADSRs
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SPH for auxiliary data with N=1 DSDs
ASAR WVI Product SPH
SQ ADSRs
Wave Mode Geolocation ADS
ASAR Wave Mode Products Base SPH
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SQ ADSRs
Measurement Data Set containing spectra. 1 MDSR per spectra.
Ocean Wave Spectra
Map Projection parameters
ASAR Image Products SPH
Measurement Data Set 1
Auxilliary Products
ASA_XCH_AX: ASAR External characterization data
ASA_XCA_AX: ASAR External calibration data
ASA_INS_AX: ASAR Instrument characterization
ASA_CON_AX: ASAR Processor Configuration
Browse Products
ASA_WS__BP: ASAR Wide Swath Browse Image
ASA_IM__BP: ASAR Image Mode Browse Image
ASA_GM__BP: ASAR Global Monitoring Mode Browse Image
ASA_AP__BP: ASAR Alternating Polarization Browse Image
Level 0 Products
ASA_WV__0P: ASAR Wave Mode Level 0
ASA_WS__0P: ASAR Wide Swath Mode Level 0
ASA_MS__0P: ASAR Level 0 Module Stepping Mode
ASA_IM__0P: ASAR Image Mode Level 0
ASA_GM__0P: ASAR Global Monitoring Mode Level 0
ASA_EC__0P: ASAR Level 0 External Characterization
ASA_APV_0P: ASAR Alternating Polarization Level 0 (Cross polar V)
ASA_APH_0P: ASAR Alternating Polarization Level 0 (Cross polar H)
ASA_APC_0P: ASAR Alternating Polarization Level 0 (Copolar)
Level 1 Products
ASA_IMS_1P: ASAR Image Mode Single Look Complex
ASA_IMP_1P: ASAR Image Mode Precision Image
ASA_IMM_1P: ASAR Image Mode Medium Resolution Image
ASA_IMG_1P: ASAR Image Mode Ellipsoid Geocoded Image
ASA_GM1_1P: ASAR Global Monitoring Mode Image
ASA_APS_1P: ASAR Alternating Polarization Mode Single Look Complex
ASA_APP_1P: ASAR Alternating Polarization Mode Precision Image
ASA_APM_1P: ASAR Alternating Polarization Medium Resolution Image product
ASA_WSS_1P: Wide Swath Mode SLC Image
ASA_WVS_1P: ASAR Wave Mode Imagette Cross Spectra
ASA_WSM_1P: ASAR Wide Swath Medium Resolution Image
ASA_APG_1P: ASAR Alternating Polarization Ellipsoid Geocoded Image
Level 2 Products
ASA_WVW_2P: ASAR Wave Mode Wave Spectra
ASAR Glossary Terms
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The Derivation of Backscattering Coefficients and RCSs in ASAR Products
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ASA_WVI_1P: ASAR Wave Mode SLC Imagette and Imagette Cross Spectra
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5.8 Sea Ice Glossary

Table 5.8
Ice Concentration Estimation
Based on the ability to distinguish ice from open water. The proportion of the ocean surface covered in sea ice may be estimated.
Ice Decay Estimation
Distinct physical properties (salinity, microstructure, moisture content and surface roughness) of different ice types produces contrasting backscatter which allows floes to be differentiated at a single date. Multidate data comparison allows the identification of location and estimation of rate of ice decay.
Ice Edge Determination
The ice edge is normally distinguishable from open water by a higher backscatter response. In rough seas or at steep incidence angles this contrast is reduced and the presence of ice may be detected as dark features which dampen the bright ocean response.
Ice Motion Estimation
Distinct physical properties (salinity, microstructure, moisture content and surface roughness) of different ice types produces contrasting backscatter which allows floes to be differentiated at a single date. Multi-temporal acquisition allows the magnitude and direction of displacement of floes to be estimated.
Ice Pressure Determination
Ice pressure results in ice topographic features which increase the roughness of the ice surface which in turn, increases radar backscatter.
Ice Type Determination
Different ice types (newly formed ice versus first and multi-year ice) have very different physical properties (salinity, microstructure, moisture content and surface roughness). Radar is sensitive to differences in these parameters which produces differential backscatter. In addition, the shape, size and location of the ice floes give important clues to its physical structure and thickness. These features may be visually interpreted from radar imagery.
Surface Topography Determination Ice topographic features (ridges, rubble fields, etc.) increase the surface roughness of the ice thus producing an associated increase in radar backscatter which contrasts from smoother surrounding features.