#acl ClamsUserGroup:read,write,delete,revert All:read
## page was renamed from MOPITT2
= Convertion of MOPITT CO data from HDF to NetCDF and final to a boundary file =

{{{#!wiki caution
Processing and deliveries of MOPITT Version 4 ('V4') Level 1, 2, and 3 products will cease at the end of 2012. The MOPITT V4 product is based solely on thermal infrared (TIR) radiances, and is therefore similar to the newer Version 5 TIR-only product.
}}}
{{{#!wiki caution
A small systematic error in the MOPITT geolocation values (latitude and longitude) has been identified. A detailed report analyzing this effect and describing a correction method is available. This issue affects both current (V4 and V5) and previous (V3) MOPITT operational products. In MOPITT daytime (descending) overpasses, reported longitudes (contained in the Level 1 and Level 2 data files) appear to be systematically biased by approximately 0.35 degrees to the west of MOPITT's actual field of view. Reported latitudes in daytime overpasses do not appear to be significantly biased. The longitudinal error is similar to the size of a single MOPITT field of view (~22 km). Longitudinal errors increase at high latitudes where lines of longitude converge. Geolocation errors for nighttime (ascending) overpasses are different than errors for daytime overpasses. 
}}}

== Information ==

http://www.acd.ucar.edu/mopitt

http://eosweb.larc.nasa.gov/PRODOCS/mopitt/table_mopitt.html

http://www.acd.ucar.edu/mopitt/news.shtml


== Conversion Routines ==
The needed IDL scripts and FORTRAN programs are under control of the CVS (Concurrent Version System) utility. To get the code the environment variable CVSROOT must be set to ''/usr/nfs/lsoftware/icg1/archive''. The command

{{{
cvs co -P mopittv4
}}}
creates a directory ''mopittv4'' in the current working directory and copies the current version of the package to this directory.

== Documentation ==

The directory ''mopittv4'' contains a folder ''doc'', where the usage is documented. 
The documentation can also be found [[attachment:mopitt_conversion.pdf|here]]. 

== Boundary Files ==

The created boundary files are stored in the directory:

{{{
/usr/nfs/data/clams/icg112/mopitt/boundfiles
}}}



[[MOPITTold | Old version of this page ]]