VLIDORT User's Guide

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ForewordThis is the User’s <strong>Guide</strong> to <strong>VLIDORT</strong> Version 2.6 issued in June 2012 in conjunction with therelease of the Version 2.6 FORTRAN 90 software package and accompanying license, and anaccompanying document containing a description of the test data sets in the installation package.The associated license closely follows the GNU public license formulation. Version 2.6 is the 6thofficial release. It follows the distribution of Version 1.0 in autumn 2004, Version 2.0 in January2006, Version 2.3 in October 2007, Version 2.4 in September 2009, and Version 2.5 inDecember 2010.3
Page 1: User’s GuideVLIDORTVersion 2.6Rob
Page 6 and 7: 52H4. The68H5. References__________
Page 8 and 9: 1.1.2. Development of Linearized Ve
Page 10 and 11: and a complete differentiation of t
Page 12 and 13: 8. (Version 2.6). The BRDF suppleme
Page 15 and 16: 2. Description of the VLIDORT model
Page 17 and 18: The six sets of “Greek constants
Page 19 and 20: 2.1.4. Jacobian definitionsAtmosphe
Page 21 and 22: Here, E is the 4 x 4 identity matri
Page 23 and 24: This procedure was not used in the
Page 25 and 26: ~L ( Ap~L ( Cp~(2)n(2)n) = −δL)
Page 27 and 28: In Eq. (2.78), p = n + 1. For surfa
Page 29 and 30: HH−+nα−−nα( x,μ)=( x,μ)=e
Page 31 and 32: 1In the plane-parallel case, we hav
Page 33 and 34: In section 2.4.1, scattering was as
Page 35 and 36: oader layers at high SZA. Further,
Page 37 and 38: transmitted direct-beam reflectance
Page 39 and 40: 3. The numerical VLIDORT model3.1.
Page 41 and 42: more algebra (chain rule differenti
Page 43 and 44: 2000]; this can be used outside the
Page 45 and 46: Verification of each stage of the l
Page 47 and 48: 3.3.4. Solution savingIn DISORT and
Page 49 and 50: This is a 2N system for the desired
Page 51: time)*100%. Tests were made for sev
Page 54 and 55:
unning the installation tests. Both
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the use of a toggle (OMEGA_SMALLNUM
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detail in section 4.3.2 below. Wher
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Finally, in vlidort_aux, there are
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and carried on with this default. I
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FORTRAN 90/95 compiler (courtesy V.
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# Main scalar testsSOURCES_SOLAR =
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4.3.4. Installation and testingTo i
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Table 4.5. Files for VLIDORT Scalar
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(3) Return the reply to the entry "
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There are two types of exception ha
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IN NO EVENT SHALL RT SOLUTIONS BE L
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Frankenberg, C., C. O'Dell, L. Guan
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Siewert, C.E., A concise and accura
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6. Appendices6.1 TablesThis section
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Table A4: Type Structure VLIDORT_Fi
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atmosphere with one cloud layer.DO_
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component S, incident solar angle s
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LAYER_VARY_NUMBER (n) Integer (I) N
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Table G3-1: Type structure VLIDORT_
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Table H4: Type Structure VLIDORT_Li
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DO_BVP_TELESCOPING Logical Do bound
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We now turn to more specific inform
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geometries and all 5 output levels.
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1. Ross-thin kernel - kernel factor
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In order to develop solutions in te
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given incident and reflected angles
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these are the BRDF parameters. E.g.
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6.3.3.2 BRDF configuration file cha
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22 1 ⎡ α ⎤P ( α,σ ) = exp⎢
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the models. Surface reflectance Jac
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We will also consider the simpler s
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environment will then call the subr
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Table B2: Type Structure VSLEAVE_In
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