Last modified by Wai-Tim Ng on 2019/11/04 09:00
<
From version < 2.1 >
edited by Tuan Le
on 2019/05/21 13:59
To version < 3.1
edited by Wai-Tim Ng
on 2019/11/04 09:00
Change comment: There is no comment for this version

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1 -XWiki.Tuan
1 +XWiki.Tim
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19 19  
20 20  After this routine, and depending on the specified settings, the following Level-2 products can be retrieved:
21 21  
22 -===== **SIG0:** =====
22 +===== **SIG0** =====
23 23  
24 24  **SIG0 **represents the backscatter returned from a unit area on the ground. It is available in VV and VH polarisation.
25 25  
26 -===== **GMR:** =====
26 +===== **GMR** =====
27 27  
28 28  **GMR **represents the radiometric terrain flattened backscatter returned from a unit area perpendicular to the looking direction. Radiometric terrain flattening takes care of and departs overlapping pulses (layover and foreshortening) resulting  from the side-looking acquisition. Thus, this product is the one having the least impact of terrain variations on backscatter at an expense of higher processing capacities and a larger time of computation needed (cf ^^2^^ for further details). It is available in VV and VH polarisation.
29 29  
30 -===== **PLIA:** =====
30 +===== **PLIA** =====
31 31  
32 32  **PLIA **is the abbreviation for Projected Local Incidence Angle, which is defined as the angle between the surface normal and the satellite (also known as Local Incidence Angle (LIA)) projected into the range plane. The surface normal is either defined by the ellipsoid normal (simplified Earth model) or the local neighbourhood of heights given by a DEM.
33 33