SMOS L2 OS ATBD - ARGANS
SMOS L2 OS ATBD - ARGANS
SMOS L2 OS ATBD - ARGANS
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15<br />
ICM-CSIC<br />
LOCEAN/SA/CETP<br />
IFREMER<br />
<strong>SM<strong>OS</strong></strong> <strong>L2</strong> <strong>OS</strong><br />
Algorithm Theoretical<br />
Baseline Document<br />
Doc: SO-TN-ARG-GS-0007<br />
Issue: 3 Rev: 9<br />
Date: 25 January 2013<br />
Page: 15<br />
Variable name Descriptive Name Units <strong>ATBD</strong><br />
reference<br />
Re earth radius km 4.6.1.2.2<br />
hrad altitude of the radiometer km 4.6.1.2.2<br />
el elevation angle (0 towards the horizon and<br />
positive above the horizon)<br />
deg 4.6.1.2.2<br />
declination deg 4.6.1.2.2<br />
right ascension deg 4.6.1.2.2<br />
T sidereal time deg 4.6.1.2.2<br />
H sidereal angle deg 4.6.1.2.2<br />
Tbgal_refl Galactic noise reflected towards the K 4.6.1.2.2.<br />
radiometer<br />
a<br />
Tbgal Effective brightness temperature of the K 4.6.1.2.2.<br />
galactic radiation<br />
a<br />
Rrough Roughness contribution to the reflection dl 4.6.1.2.2.<br />
coefficient <br />
b<br />
0<br />
pp bistatic reflection coefficients (p=(h,v)) dl 4.6.1.2.2.<br />
b<br />
Tbgal_refl_lobe reflected brightness temperature<br />
integrated over the antenna pattern<br />
K 4.6.1.2.3<br />
Plobe normalized power pattern of the antenna W 4.6.1.2.3<br />
Fg_OoR_gam1_dim1_de Out of range flag raised if at least one of dl<br />
c<br />
the measurements of a dwell has a<br />
declination value which falls outside the<br />
acceptable interval limits.<br />
Fg_OoR_gam1_dim2_ra Out of range flag raised if at least one of<br />
the measurements of a dwell has a right<br />
ascension value which falls outside the<br />
acceptable interval limits.<br />
dl<br />
4.7 Galactic noise 2<br />
Ah_0<br />
Ah_2<br />
symmetric H-pol component<br />
, cos2 w<br />
harmonic amplitude H-pol<br />
K<br />
K<br />
Av_0<br />
Av_2<br />
Bh_2<br />
Bv_2<br />
symmetric V-pol component<br />
, cos2 w<br />
harmonic amplitude V-pol<br />
, sin2 w<br />
harmonic amplitude H-pol<br />
, sin2 w<br />
harmonic amplitude V-pol<br />
K<br />
K<br />
K<br />
K<br />
dec Declination corresponding to specular<br />
reflection direction<br />
°<br />
Fg_OoR_gam2_dec[Ngp] Out of range flag raised if at least one of<br />
the measurements of a dwell has a<br />
declination value which falls outside the<br />
acceptable interval limits.<br />
dl<br />
Fg_OoR_gam2_psi[Ngp] Out of range flag raised if at least one of<br />
the measurements of a dwell has a psi<br />
angle value which falls outside the<br />
acceptable interval limits.<br />
dl<br />
Fg_OoR_gam2_ra[Ngp] Out of range flag raised if at least one of<br />
the measurements of a dwell has a right<br />
ascension value which falls outside the<br />
acceptable interval limits.<br />
dl<br />
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