Some fields are 'instantaneous' like wind velocity (whatever that means, depends on the time step and the accuracy of the model) and some are accumulated, like rainfall, over the duration of the output time step. The accumulated fields are marked as such in the wrf output, use ncdump to look at the header. Unfortunately there is no naming convention.<div>
<br></div><div>You have to be careful therefore that instead of deleting unwonted time steps outputs that you merge them if you care about totals.<span></span><br><div><br></div><div>Andrew</div><div>Not a meteorologist<br>
<br>On Tuesday, 17 July 2012, Gisele dos Santos Zepka wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear users,<br>
<br>
The history interval of my WRF outputs is set to be of one hour. I have<br>
a doubt about the outputs: does each output hour is an average of some<br>
kind from the past hour or the instantaneous value of the output time?<br>
<br>
Any help will be great.<br>
Thanks<br>
<br>
--<br>
____________________________________________<br>
<br>
Dra. Gisele dos Santos Zepka Saraiva<br>
Meteorologist - Atmopheric Electricity<br>
National Institute for Space Research - INPE<br>
Av. dos Astronautas, 1758<br>
São José dos Campos, SP<br>
Brazil, 12227-010<br>
<br>
Phone:++55(12) 3208-6841<br>
<br>
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</blockquote></div></div>