Algorithm Theoretical Based Document (ATBD) - CESBIO

SO-TN-ESL-SM-GS-0001
Issue 1.a
Date: 31/08/2006
SMOS level 2 processor
Soil moisture ATBD
Version Date Sections Changes and comments Origin Visa
/ Rév.
05.a 15/032006 3.1.1.2 Clarify internal reference CDR AI 74
05.a 15/032006 3.1.1.2&3 Replace TB sky by TB sk CDR AI 62
05.a 15/032006 3.1.1.4 Introduce short notation LV
05.a 15/032006 3.1.2.3 Clarify HR(SM) description, XMVT, FC ESL
05.a 15/032006 3.1.2.7 Clarify interpretation of equations 22 CDR AI 69
05.a 15/032006 3.1.2.7 Change LWc to LWC CDR AI 68
05.a 15/032006 3.1.2.8 Introduce flag FL_TAU_FO and threshold
TH_SCENE_TAU_FO
05.a 15/032006 3.1.2.10.2 Clarify dry sand modelling. Shifted part of CDR AI 56
sand analysis to 3.7
05.a 15/032006 3.1.3.3 Spell out initial option for floods. Shifted part CDR AI 56, 66
of flood analysis to 3.7
05.a 15/032006 3.1.4.3 Shifted part of snow analysis to 3.7 CDR AI 56
05.a 15/032006 3.1.4.5 Clarify definition of urban class and way of CDR AI 77 to 79
addressing it.
05.a 15/032006 3.1.5.1 Update atmospheric modelling using recent ESL
data
05.a 15/032006 3.1.5.1 Clarify lineic O2 absorption coefficient CDR AI 64
05.a 15/032006 3.1.5.2 Clarify equation 60 for sky contribution CDR AI 62
05.a 15/032006 3.1.5.2.3.2&3 Clarify integrated sky map
05.a 15/032006 3.2.2.1.1 Elaborate on L1c Header informations. ESL
05.a 15/032006 3.2.2.1.3 Clarify understanding Figure 7
05.a 15/032006 3.2.2.1.4 Clarify BT range testing
05.a 15/032006 3.2.2.1.7 Ensure consistency of text with Eq 67
05.a 15/032006 3.2.2.4.2 Clarify WEF computation
05.a 15/032006 3.2.3.2.2.6 Clarify initial way of dealing with flood risk CDR AI 56, 66
05.a 15/032006 3.2.3.2.3 Redefine the "winter forest" decision case
05.a 15/032006 3.2.3.2.3 Table 14 reintroduce the FEU fraction, correct
snow fractions
05.a 15/032006 3.2.3.2.4 Clarify initial way of dealing with flood risk;
shift part of discussion to 3.7.
05.a 15/032006 3.2.3.2.6 Homogeneize notations for topography
thresholds
05.a 15/032006 3.2.3.3.1. Delete the low urban threshold TH_UL from
decision tree triggers
05.a 15/032006 3.2.3.3.2. Update Table 16; delete forest winter and low
urban branches
05.a 15/032006 3.2.3.3.2. Update Table 18; delete forest winter and low
urban cases
Correct water fraction notations
05.a 15/032006 3.2.3.5 Clarify FV fractions; Table 20 remove
SNOW_PAR line
05.a 15/032006 3.2.3.6.1 Table 21: remove SNOW_PAR line ESL
05.a 15/032006 3.2.3.6.3 Clarify DQX from CURRENT_TAU map
05.a 15/032006 3.2.4.4.3 Consolidate convergence and failure criteria ESL
05.a 15/032006 3.2.5.1. Clarify removing the outliers ESL
05.a 15/032006 3.2.5.2.2. Clarify updating
CURRENT_TAU_NADIR_LV
05.a 15/032006 3.2.5.2.3. Clarify updating CURRENT_HR
05.a 15/032006 3.2.5.2.4. Deactivate CURRENT_FLOOD_MAP
05.a 15/032006 3.2.5.4. update
05.a 15/032006 3.2.5.5.2. Change GAMMA_P to GAMMA_Q notation
05.a 15/032006 3.2.5.5.2.2 Insert CHI2_P table Define global quality
figure GQX
05.a 15/032006 3.2.5.5.3 Clarify Flags for forest, Urban low, coast
CDR AI 77, 60
CDR AI 56, 66
CDR AI 77 to 79
CDR AI 77 to 79
CDR AI 77 to 79
CDR AI 52
vi