RLFEX VAP: Status and Updates Duli Chand 1 , Rob K. Newsom 1 , John Goldsmith 2 , Ray Bambha 2 , Connor J. Flynn 1 , Chitra Sivaraman 1 , Erol Cromwell 1 , Tyler J. Thorsen 3 , and Jennifer M. Comstock 1 (1) Pacific Northwest National Laboratory, Richland, WA, USA (2) Sandia National Laboratory, Livermore, California, USA (3) NASA Langley, Hampton, Virginia, USA
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RLFEX VAP: Status and Updates - ASRRLFEX VAP: Status and Updates Duli Chand 1, Rob K. Newsom 1, John Goldsmith 2, Ray Bambha 2, Connor J. Flynn 1, Chitra Sivaraman , Erol Cromwell
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RLFEX VAP: Status and UpdatesDuli Chand1, Rob K. Newsom1, John Goldsmith2, Ray Bambha2, Connor J. Flynn1, Chitra Sivaraman1, Erol Cromwell1, Tyler J. Thorsen3, and Jennifer M. Comstock1
(1) Pacific Northwest National Laboratory, Richland, WA, USA(2) Sandia National Laboratory, Livermore, California, USA(3) NASA Langley, Hampton, Virginia, USA
The configuration files are developed for RLFEX at ENA by following analysis:
(a) Surface sun-photometer(b) Surface size distribution(c) Liquid cloud droplet size from satellite analysis(d) Ice cloud droplet Size from satellite analysis(e) Raw RL data for misalignment angle for all clear sky days(f) Raw RL data for overlap functions for all clear sky days
Calibration stability of RL at ENA is being assessed, some results are presented in poster on Tuesday afternoon.
Original runs from Thorson et al 2015 ADI
RLFEX: Comparison of original version with ADI
Original_RLFex ADI_RLFex
RLFEX Installation, Testing, and Implementation:
(RLFex from THORSEN et al., 2015A, 2015B)
Aerosol/cloud layer descending from Free Troposphere is observed by SGP RL system
54.1633.1
22==
′′
=m
c
δδη
992.0004.01004.01
11
=+−
=+−
=m
mmf
δδ
( ) ( ) 9268.0154.16992.0
154.161
1=
+−
=+−
=ηηγ
mf
deg02.11cos5.0 1 == − γφ
mδ ′ cδ ′
Use only 11-15 UTC
Misalignment angle,
Here the value of is weight or gain parameter in file: rlprof_fex.para_weightcδ ′
Estimating the gain parameter (𝜼𝜼) and misalignment angle (𝝋𝝋):
(Here 𝛿𝛿𝑚𝑚 =0.004 is true molecular DR
(Avg gain parameter is 23.41 instead of 22 (see page 7)
(if we use gain parameter as 23.41 the misalignment angle is 12.9 degree)
Estimate misalignment angle in the RL system
Year Month Date/Day Back_Dep_cld Back_Dep_cld_std Mis_alng_angle