Thanks for the help and links !<br><br>I found a datesets too in:<br><br><a href="http://nomad3.ncep.noaa.gov/pub/reanalysis-1/6hr/grb2d/"></a>surface variables (glabal coverage)<br><a href="http://nomad3.ncep.noaa.gov/pub/reanalysis-1/6hr/grb2d/">http://nomad3.ncep.noaa.gov/pub/reanalysis-1/6hr/grb2d/</a><br>
upper air variables (global coverage)<br><a href="http://nomad3.ncep.noaa.gov/pub/reanalysis-2/6hr/pgb/">http://nomad3.ncep.noaa.gov/pub/reanalysis-2/6hr/pgb/</a><br><br><br><div class="gmail_quote">2009/11/6 hossein lotfi <span dir="ltr"><<a href="mailto:h.meteo.shirazu@gmail.com">h.meteo.shirazu@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><div class="h5"><br><br>
<div class="gmail_quote">On Fri, Nov 6, 2009 at 11:53 AM, Mike Bosilovich <span dir="ltr"><<a href="mailto:mike.bosilovich@gmail.com" target="_blank">mike.bosilovich@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Hi Claudio,<br><br>Just a word of caution. Any reanalysis data is not actually<br>observations, and each reanalysis has it's own bias and uncertainty,<br>
NCEP or otherwise. One reanalysis is not necessarily representative of<br>reality, especially in the physics output. Clouds and precipitation<br>can be much more related to the model part of the data assimilation<br>system. Temperature and heights less so, until you move toward data<br>
sparse regions.<br><br>That said MERRA produces reanalysis cloud fields (1/2 degree<br>resolution, global). The following links can be opened in gradsdap or<br>opengrads sessions (sdfopen) to get the MERRA cloud fields:<br>
<br>1 hourly frequency: <a href="http://goldsmr2.sci.gsfc.nasa.gov/dods/MAT1NXRAD" target="_blank">http://goldsmr2.sci.gsfc.nasa.gov:80/dods/MAT1NXRAD</a><br>Monthly: <a href="http://goldsmr2.sci.gsfc.nasa.gov/dods/MATMNXRAD" target="_blank">http://goldsmr2.sci.gsfc.nasa.gov:80/dods/MATMNXRAD</a><br>
<br>The main data page is at:<br><a href="http://disc.sci.gsfc.nasa.gov/daac-bin/DataHoldings.pl" target="_blank">http://disc.sci.gsfc.nasa.gov/daac-bin/DataHoldings.pl</a> with a variety<br>of download options.<br><br>Also, you may be interested in installing opengrads on your computer.<br>
It has command lines built in for "merra" and "nomads", and these open<br>gui interfaces to each reanalyses Grads Data Servers.<br><br>Good Luck and have a great weekend!!<br><font color="#888888"><br>
Mike<br></font>
<div>
<div></div>
<div><br>On Fri, Nov 6, 2009 at 11:59 AM, claudio cortes <<a href="mailto:claudiomet@gmail.com" target="_blank">claudiomet@gmail.com</a>> wrote:<br>> greetings<br>><br>> when I need historical data for climatological studies, I download<br>
> datasetes from this ftp:<br>> <a href="ftp://ftp.cdc.noaa.gov/pub/Datasets/ncep.reanalysis/pressure/" target="_blank">ftp://ftp.cdc.noaa.gov/pub/Datasets/ncep.reanalysis/pressure/</a><br>> where can I find historical values of temperature, geotential heights,<br>
> humidity and wind<br>> and this information I can extract it using grads<br>><br>> but at this moment, I need cloud cover historial data and<br>> where can I find cloud cover historical datasets ?<br>><br>
> thaks !<br>><br>> --<br>> Claudio Cortes<br>> +56 (2) 2994121<br>><br>> Meteorologo<br>> Laboratorio de Meteorologia y Calidad de Aire<br>> Centro Nacional del Medio Ambiente (CENMA)<br>> --------------------------------------------------------------------------------------<br>
><br>> Claudio Cortes<br>> +56 (2) 2994121<br>><br>> Meteorologist<br>> Meteorology and Air Quality Labs<br>> National Enviroment Center, Chile (CENMA)<br>><br></div></div></blockquote></div>
</div></div><div>Hi</div>
<div>Thank you very very much for your email and links</div>
<div>it's has very good data </div>
<div>Thank you <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D"> <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D" height="15" width="15"> <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D" height="15" width="15"> <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D" height="15" width="15"> <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D" height="15" width="15"> <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D" height="15" width="15"> <img style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:03D@goomoji.gmail" goomoji="03D" height="15" width="15"> <br>
</div>
</blockquote></div><br><br clear="all"><br>-- <br>Claudio Cortes<br>+56 (2) 2994121 <br><br>Meteorologo<br>Laboratorio de Meteorologia y Calidad de Aire<br>Centro Nacional del Medio Ambiente (CENMA)<br>--------------------------------------------------------------------------------------<br>
<br>Claudio Cortes<br>+56 (2) 2994121<br><br>Meteorologist<br>Meteorology and Air Quality Labs<br>National Enviroment Center, Chile (CENMA)<br>