Re: swath contour plot

I did respond offline to get his data file [he5].

I verified that NCL was plotting the swath correctly.

===
Note: the following prints the latitude and longitude values.
These include many longitude values which span approximately
-179 to +179 at high southern latitudes.

%> ncl_filedump -v
Latitude_OMI_Total_Column_Amount_BrO,Longitude_OMI_Total_Column_Amount_BrO
OMI-Aura_L2-OMBRO_2006m0105t1414-o07854_v003-2008m0622t111235.he5 | less

http://www.cgd.ucar.edu/~shea/hdf5eos_5.ncl
http://www.cgd.ucar.edu/~shea/hdf5eos.pz.gz

%> gzip -d hdf5eos.pz.gz

Th script is pretty basic. It reads/plots a user specified variable.
There are many projections that can be used. This uses a standard
cylindrical equidistant. The

http://www.ncl.ucar.edu/Applications/HDF.shtml

shows many examples. hdf4 or hdf5 .... really does not make any
difference from NCL's perspective. EG:

hdf5eos_1.ncl

shows how to read/plot all variables on a file.

I would expect v5.2.0 to be released "soon".

Regards
D

On 02/09/2010 03:00 PM, Mary Haley wrote:
> Hi Fan,
>
> I'm not sure anybody every responded to this.
>
> Can you send me your script so I can see how you're plotting the data?
>
> Have you seen our swath exampes on the HDF applications page:
>
> http://www.ncl.ucar.edu/Applications/HDF.shtml
>
> In particular, look at example hdf4sds_5.ncl
>
> I noticed that you are using times-roman fonts, which is the default
> in NCL.
>
> To get a helvetica font, which usually looks better in print and on
> the web, we recommend that you download this .hluresfile and put it
> in your home directory:
>
> http://www.ncl.ucar.edu/Document/Graphics/hlures.shtml
>
> --Mary
>
>
>
> On Feb 5, 2010, at 10:39 AM, Fang, Fan (GSFC-610.2)[ADNET SYSTEMS
> INC] wrote:
>
>> I am plotting to view the Air Mass Factor variable of a OMI swath data
>> (OMBRO.003) using NCL. Attached is the plot. It almost seems like
>> that
>> NCL is over-plotting the contours - most of the larger triangle-like
>> area shall not be part of the swath of any orbiting satellite view. I
>> wonder if there are any resources that I need to set to avoid this.
>> Help is very much appreciated.
>>
>> -Fan<L2gpMap_0001.jpg>_______________________________________________
>> ncl-talk mailing list
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-- 
======================================================
Dennis J. Shea                  tel: 303-497-1361    |
P.O. Box 3000                   fax: 303-497-1333    |
Climate Analysis Section                             |
Climate & Global Dynamics Div.                       |
National Center for Atmospheric Research             |
Boulder, CO  80307                                   |
USA                        email: shea 'at' ucar.edu |
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