VLIDORT User's Guide

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NFINELAYERS Integer Number of fine layers (outgoing sphericity option only)N_THERMAL_COEFFS Integer Number of thermal coefficientsVLIDORT_ACCURACY Real*8 Fourier series convergenceTable J3: File-read Character strings for Fixed Sunrays variables (Table A4)Name Kind Character string in Configuration fileFLUX_FACTOR Real*8 Solar flux constantTable J4: File-read Character strings for Fixed UserValues variables (Table A5)Name Kind Character string in Configuration fileN_USER_LEVELS Integer Number of user-defined output levelsTable J5: File-read Character strings for some Fixed Chapman variables (Table A6)Name Kind Character string in Configuration fileRFINDEX_PARAMETER Real*8 Refractive index parameterTable J6: File-read Character strings for some Fixed Optical variables (Table A7)Name Kind Character string in Configuration fileLAMBERTIAN_ALBEDO Real*8 Lambertian albedoTable J7: File-read Character strings for Fixed Write variables (Table A8)Name Kind Character string in Configuration fileDO_DEBUG_WRITE Logical Do debug write? (RT Solution use only)DO_WRITE_INPUT Logical Do input control write?DO_WRITE_SCENARIO Logical Do input scenario write?DO_WRITE_FOURIER Logical Do Fourier component output write? (not active)DO_WRITE_RESULTS Logical Do results write?INPUT_WRITE_FILENAME Character filename for input writeSCENARIO_WRITE_FILENAME Character filename for scenario writeFOURIER_WRITE_FILENAME Character filename for Fourier output write (not active)RESULTS_WRITE_FILENAME Character filename for main output6.1.2.2. VLIDORT basic modified inputsTable K1: File-read Character strings for Modified Boolean variables (Table B2)Name Kind Character string in Configuration fileDO_SSCORR_NADIR Logical Do nadir single scatter correction?DO_SSCORR_OUTGOING Logical Do outgoing single scatter correction?DO_DOUBLE_CONVTEST Logical Do double convergence test?DO_SOLAR_SOURCES Logical Use solar sources?DO_REFRACTIVE_GEOMETRY Logical Do refractive geometry?DO_CHAPMAN_FUNCTION Logical Do internal Chapman function calculation?DO_RAYLEIGH_ONLY Logical Do Rayleigh atmosphere only?DO_DELTAM_SCALING Logical Do delta-M scaling?DO_SOLUTION_SAVING Logical Do solution saving?96
DO_BVP_TELESCOPING Logical Do boundary-value telescoping?DO_USER_VZANGLES Logical Use user-defined viewing zenith angles?DO_ADDITIONAL_MVOUT Logical Do mean-value output additionally?DO_MVOUT_ONLY Logical Do only mean-value output?DO_THERMAL_TRANSONLY Logical Do thermal emission, transmittance only?DO_OBSERVATION_GEOMETRY Logical Do Observation Geometry?Table K2: File-read Character strings for Modified Control variables (Table B3)Name Kind Character string in Configuration fileNGREEK_MOMENTS_INPUT Integer Number of scattering matrix expansion coefficientsTable K3: File-read Character strings for Modified Sunrays variables (Table B4)Name Kind Character string in Configuration fileN_SZANGLES Integer Number of solar zenith anglesSZANGLES Real*8 Solar zenith angles (degrees)Table K4: File-read Character strings for Modified UserValues variables (Table B5)Name Kind Character string in Configuration fileN_USER_RELAZMS Integer Number of user-defined relative azimuth anglesUSER_RELAZMS Real*8 User-defined relative azimuth angles (degrees)N_USER_VZANGLES Integer Number of user-defined viewing zenith anglesUSER_VZANGLES_INPUT Real*8 User-defined viewing zenith angles (degrees)USER_LEVELS Real*8 User-defined output levelsGEOMETRY_SPECHEIGHT Real*8 Input geometry specification height (km)N_USER_OBSGEOMS Integer Number of Observation Geometry inputsUSER_OBSGEOM_INPUT Real*8 Observation Geometry inputsTable K5: File-read Character strings for some Modified Chapman variables (Table B6)Name Kind Character string in Configuration fileEARTH_RADIUS Real*8 Earth radius (km)6.1.2.3. VLIDORT linearized fixed inputsTable L1: File-read Character strings for some Fixed LinControl variables (Table E2)Name Kind Character string in Configuration fileDO_SIMULATION_ONLY Logical Do simulation only?N_TOTALCOLUMN_WFS Integer Number of atmospheric column weighting functions (total)N_TOTALPROFILE_WFS Integer Number of atmospheric profile weighting functions (total)COLUMNWF_NAMES Character Atmospheric column Jacobian names (character*31)PROFILEWF_NAMES Character Atmospheric profile Jacobian names (character*31)97
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User’s GuideVLIDORTVersion 2.6Rob
Page 5 and 6:
Table of Contents1H1. Introduction
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1. Introduction to VLIDORT1.1. Hist
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Table 1.1 Major features of LIDORT
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In 2006, R. Spurr was invited to co
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corrections, and sphericity correct
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Matrix Π relates scattering and in
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m⎛ P⎞l( μ)0 0 0⎜⎟mmm ⎜ 0
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In the following sections, we suppr
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of the single scatter albedo ω and
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Here T n−1 is the solar beam tran
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~ + ~ ~ (1)~ ~ + ~ ~ (2)~ ~ − ~ 1
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The solution proceeds first by the
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Linearizations. Derivatives of all
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For the plane-parallel case, we hav
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One of the features of the above ou
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L↑↑ ↑k (cot n −cotn −1)[
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Note the use of the profile-column
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βl,aer(1)(2)fz1e1βl+ ( 1−f ) z2
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For BRDF input, it is necessary for
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streams were used in the half space
Page 46 and 47: anded tri-diagonal matrix A contain
Page 48 and 49: in place to aid with the LU-decompo
Page 50 and 51: In earlier versions of LIDORT and V
Page 53 and 54: 4. The VLIDORT 2.6 package4.1. Over
Page 55 and 56: (discrete ordinates), so that dimen
Page 57 and 58: Table 4.2 Summary of VLIDORT I/O Ty
Page 59 and 60: Table 4.3. Module files in VLIDORT
Page 61 and 62: Finally, modules vlidort_ls_correct
Page 63 and 64: end program main_VLIDORT4.3.2. Conf
Page 65 and 66: $(VLID_DEF_PATH)/vlidort_sup_brdf_d
Page 67 and 68: Finally, the command to build the d
Page 69 and 70: Here, “s” indicates you want to
Page 71 and 72: The main difference between “vlid
Page 73 and 74: to both VLIDORT and the given VSLEA
Page 75 and 76: STATUS_INPUTREAD is equal to 4 (VLI
Page 77 and 78: 5. ReferencesAnderson, E., Z. Bai,
Page 79 and 80: Mishchenko, M.I., and L.D. Travis,
Page 81: Stamnes K., S-C. Tsay, W. Wiscombe,
Page 84 and 85: Table A2: Type Structure VLIDORT_Fi
Page 86 and 87: DO_WRITE_FOURIER Logical (I) Flag f
Page 88 and 89: USER_LEVELS (o) Real*8 (IO) Array o
Page 90 and 91: angle s, Stokes parameter S, and di
Page 92 and 93: DO_SLEAVE_WFS Logical (IO) Flag for
Page 94 and 95: 6.1.1.8. VLIDORT linearized outputs
Page 98 and 99: 6.1.2.4. VLIDORT linearized modifie
Page 100 and 101: The output file contains (for all 3
Page 102 and 103: The first call is the baseline calc
Page 104 and 105: for a 2-parameter Gamma-function si
Page 106 and 107: Remark. In VLIDORT, the BRDF is a 4
Page 108 and 109: 6.3.3.1. Input and output type stru
Page 110 and 111: Table C: Type Structure VBRDF_LinSu
Page 112 and 113: Special note regarding Cox-Munk typ
Page 114 and 115: squared parameter, so that Jacobian
Page 116 and 117: 6.4. SLEAVE SupplementHere, the sur
Page 118 and 119: is possible to define Jacobians wit
Page 120 and 121: etween 0 and 90 degrees.N_USER_OBSG
Page 122: 6.4.4.2 SLEAVE configuration file c
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VLIDORT User's Guide

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