SMOS L2 OS ATBD - ARGANS

More documents

Recommendations

Info

163 4.11. Bias correction ICM-CSIC LOCEAN/SA/CETP IFREMER SMOS L2 OS Algorithm Theoretical Baseline Document Doc: SO-TN-ARG-GS-0007 Issue: 3 Rev: 9 Date: 25 January 2013 Page: 163 This section has been removed (issue 3.0) and left for the Reprocessing ATBD. The scene dependent bias correction will not be applied before having examined how it is corrected or mitigated at L1. 4.12. Transport ground level Tb to antenna level 4.12.1. Theoretical description 4.12.1.1. Physics of the problem The iterative process to retrieve salinity from SMOS measurements requires comparing the measured data with Tb modeled through the algorithms described in this ATBD. All the different sub-models are describing the processes that contribute to sea surface L-band emission (flat sea, roughness, foam, …), the effects of incoming radiation that need to be added to this emission (atmospheric, cosmic and galactic background, …), plus the modifications to this radiation in its transit through the atmosphere. The result is the modeled value of Tb on top of the atmosphere expressed in the Earth reference frame. The next step is to transport this Tb to the SMOS antenna reference frame, considering both the change in geometry and the ionospheric effects (Faraday rotation), to allow the comparison with the measured Tb. 4.12.1.2. Mathematical description of the algorithm With the viewing geometry as defined in ACRI Reqts_L2Draft-2.doc (see figure and annex)
164 ICM-CSIC LOCEAN/SA/CETP IFREMER Faraday rotation SMOS L2 OS Algorithm Theoretical Baseline Document Doc: SO-TN-ARG-GS-0007 Issue: 3 Rev: 9 Date: 25 January 2013 Page: 164 that follows the conventions described in Earth Explorer CFI Software Mission Convention Document (Deimos), we introduce the mathematical expressions for the angles to be used in the transport from ground to antenna reference frames. Arc cossint sin g sing cost cos g Arc sin sin t cos g cost sin gsin g sin Arcsin costsin g sint cos g sing sin for –/2 ≤ g ≤ /2 : for /2 ≤ g ≤ 3/2: has to be replaced by and ψ by ψ We define the rotation angle a = ψ ω, being ω the Faraday rotation angle. Then, following ACRI Reqts_L2Draft-2.doc Dual polarization mode: Direct transformation from surface reference frame to antenna reference frame is
Page 1 and 2:
ICM-CSIC LOCEAN/SA/CETP IFREMER SMO
Page 3 and 4:
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Table of contents ICM-CSIC LOCEAN/S
Page 13 and 14:
Page 15 and 16:
2 ICM-CSIC LOCEAN/SA/CETP IFREMER S
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
10 ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Presence of ice Applying sea ice ma
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Classification of grid point: g Oce
Page 49 and 50:
36 3.5. Outliers detection ICM-CSIC
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
T T 42 ss ss ICM-CSIC LOCEAN/SA/CET
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
52 4.1. Flat sea ICM-CSIC LOCEAN/SA
Page 67 and 68:
54 SSS ICM-CSIC LOCEAN/SA/CETP IFRE
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126: 112 ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 175: 162 ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 181 and 182: I(θ_mean)=A1(θx)+A2(θy) where θ
Page 185 and 186: ICM-CSIC LOCEAN/SA/CETP IFREMER SMO
Page 187 and 188: Tb_i 2 = Tb_meas_i 2 174 ICM-CSIC L
Page 201 and 202: Uncertainty origin Sea state 4 Sea
Page 211 and 212: ICM-CSIC LOCEAN/SA/CETP IFREMER SMO
Page 213 and 214: ICM-CSIC LOCEAN/SA/CETP IFREMER -th
Page 215 and 216: IV ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 217 and 218: VI ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 219 and 220: VIII ICM-CSIC LOCEAN/SA/CETP IFREME
Page 221 and 222: X ICM-CSIC LOCEAN/SA/CETP IFREMER S
Page 223 and 224: XII ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 225 and 226: XIV ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 227 and 228:
XVI ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 229 and 230:
I ICM-CSIC LOCEAN/SA/CETP IFREMER S
Page 231 and 232:
III ICM-CSIC LOCEAN/SA/CETP IFREMER
Page 233 and 234:
V ICM-CSIC LOCEAN/SA/CETP IFREMER S
Page 235 and 236:
VII ICM-CSIC LOCEAN/SA/CETP IFREMER
show all

SMOS L2 OS ATBD - ARGANS

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?