CALIPSO XCC values error
Marston
We are vetting COSP2.0 and a COSP1.4.1 implementation, with regards to the TCC, HCC, MCC, and LCC. My cosp2.0 version returns good results but the 1.4.1 version returns values that are drastically low (see fig). The two cosps are run for the same month and averaged. They are suppose to be similar though not exactly alike, yet cosp1.4.1 (right col) looks way off. I've triple checked the input data and even ran the SYS_SX both set to true and false but still I cannot find the problem. It seems the TCC keep coming out too low and there seems to be something going on over the land areas.
Does anyone have some diagnoses tips on where to look? Have anyone come across something like this before?
Appreciate your thoughts,
/M
Dustin Swales - NOAA Affiliate
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Dustin Swales
Associate Scientist
CIRES /NOAA-ESRL
dustin...@noaa.gov
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Marston Johnston
Hi Dustin,
Thanks for your response. I’m looking for a way to check the CALIPSO input to ensure integrity, some kind of way to diagnose the simulator.
I’m going to check the ISCCP and MODIS and update this thread with what I find.
Cheers,
/M
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marston S. Johnston, PhD
Department of Earth Sciences
University of Gothenburg, Sweden
Email: marston....@gu.se
SkypeID: marston.johnston
Phone: +46-31-7864901
Only the fruitful thing is true!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
From: <cosp...@googlegroups.com> on behalf of Dustin Swales - NOAA Affiliate <dustin...@noaa.gov>
Reply-To: <cosp...@googlegroups.com>
Date: Wednesday, 17 May 2017 at 16:50
To: <cosp...@googlegroups.com>
Subject: Re: CALIPSO XCC values error
Hi Marston-
Thanks for your note.
I will look into this in more detail sometime soon, but I would expect the v1.4.1 output to be the "better baseline" to use than v2, so it's surprising that you are seeing the opposite. The LIDAR simulator is unchanged, actually untouched, in the 1.4.1 update, only the MODIS simulator has changed (https://github.com/CFMIP/COSPv1/commit/88a3582f5beb7cbcf0acd39bcb4d7be1833d83ee), so for the LIDAR output to look odd in your right column is puzzling.
Cheers,
Dustin
On Wed, May 17, 2017 at 6:09 AM, Marston <shej...@gmail.com> wrote:
Hi,
We are vetting COSP2.0 and a COSP1.4.1 implementation, with regards to the TCC, HCC, MCC, and LCC. My cosp2.0 version returns good results but the 1.4.1 version returns values that are drastically low (see fig). The two cosps are run for the same month and averaged. They are suppose to be similar though not exactly alike, yet cosp1.4.1 (right col) looks way off. I've triple checked the input data and even ran the SYS_SX both set to true and false but still I cannot find the problem. It seems the TCC keep coming out too low and there seems to be something going on over the land areas.
Does anyone have some diagnoses tips on where to look? Have anyone come across something like this before?
Appreciate your thoughts,
/M
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Dustin Swales
Associate Scientist
CIRES /NOAA-ESRL
(303)-497-7008
dustin...@noaa.gov
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