Which resolution CO data has? You can use a land mask from GFS "land use" parameter in any grib file, it comes with 0.5o degree resolution.<br><br><br><div class="gmail_quote">On Wed, Jun 18, 2008 at 1:37 AM, Sachin Ghude <<a href="mailto:sachinghude@tropmet.res.in">sachinghude@tropmet.res.in</a>> wrote:<br>
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<p>Thanks. But its not working.</p>
<p>From where I can get the Mask Grid where sea values are set to negative.<font size="2">
<br>
<br>Sachin </font></p>
<p></p>
<p><font size="2"><b>---------- Original Message -----------</b>
<br>From: Charles Seman <<a href="mailto:Charles.Seman@NOAA.GOV" target="_blank">Charles.Seman@NOAA.GOV</a>>
<br>To: <a href="mailto:GRADSUSR@LIST.CINECA.IT" target="_blank">GRADSUSR@LIST.CINECA.IT</a>
<br>Sent: Tue, 17 Jun 2008 11:12:21 -0400
<br>Subject: Re: land ocean mask
<br>
<br>> Sachin,
<br>>
<br>> Perhaps the GrADS maskout function may be helpful...
<br>> <a href="http://grads.iges.org/grads/gadoc/gradfuncmaskout.html" target="_blank">http://grads.iges.org/grads/gadoc/gradfuncmaskout.html</a>
<br>>
<br>> Chuck
<br>>
<br>> Sachin Ghude wrote:
<br>> > Dear All,
<br>> >
<br>> > I am using following set of expressions to plot an area averaged time series of the CO
<br>> > data (which covers data over land and also over ocean). Could somebody advice me how
<br>> > to plot a time series which will take only data over land and not data over ocean.
<br>> >
<br>> > 'set x 1'
<br>> > 'set y 1'
<br>> > 'set t 1 132'
<br>> > 'set gxout print'
<br>> > 'set prnopts %g 1 1'
<br>> > 'd tloop(aave(CO,lon=81,lon=91,lat=20,lat=27))'
<br>> > say result
<br>> > write ('C:\CO_timeseries.xls',result)
<br>> > 'reinit'
<br>> >
<br>> > thanks in advance
<br>> >
<br>> > Sachin Ghude
<br>> >
<br>>
<br>> --
<br>>
<br>> Please note that <a href="mailto:Charles.Seman@noaa.gov" target="_blank">Charles.Seman@noaa.gov</a> should be considered my NOAA
<br>> email address, not <a href="mailto:cjs@gfdl.noaa.gov" target="_blank">cjs@gfdl.noaa.gov</a>.
<br>>
<br>> ********************************************************************
<br>> Charles Seman <a href="mailto:Charles.Seman@noaa.gov" target="_blank">Charles.Seman@noaa.gov</a>
<br>> U.S. Department of Commerce / NOAA / OAR
<br>> Geophysical Fluid Dynamics Laboratory voice: (609) 452-6547
<br>> 201 Forrestal Road fax: (609) 987-5063
<br>> Princeton, NJ 08540-6649 <a href="http://www.gfdl.noaa.gov/%7Ecjs/" target="_blank">http://www.gfdl.noaa.gov/~cjs/</a>
<br>> ********************************************************************
<br>>
<br>> "The contents of this message are mine personally and do not necessarily
<br>> reflect any position of the Government or NOAA."
<br><b>------- End of Original Message -------</b>
<br></font></p>
</div>
</blockquote></div><br><br clear="all"><br>-- <br>============================================================<br>Ricardo Marcelo da Silva<br>LAMMA - Laboratório de Modelagem de Processos Marinhos e Atmosféricos<br>Depto de Meteorologia - Instituto de Geociências <br>
Centro de Ciências Matemáticas e da Natureza<br>Universidade Federal do Rio de Janeiro<br>e-mail: <a href="mailto:ricardom@acd.ufrj.br">ricardom@acd.ufrj.br</a> <br>phone: 55 21 2598-9470 r 24<br>============================================================