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<body class='hmmessage'><div dir='ltr'><font face="Calibri,sans-serif" size="2" style="font-size:10pt;" color="#2672EC"><b>Hi David,</b></font><div><font face="Calibri,sans-serif" size="2" style="font-size:10pt;" color="#2672EC"><b><br></b></font></div><div><font face="Calibri,sans-serif" size="2" style="font-size:10pt;" color="#2672EC"><b>I think you could try with tloop command...<br id="FontBreak"></b></font><br><br><span class="ecxHOEnZb ecxadL"><font style="" color="#888888">Julio N. Martínez Sánchez<br>M.C. en Oceanografía Física<br>Consultor en Sitio</font></span><div><font color="#888888">Subgerencia de Pronóstico a Mediano y Largo Plazo</font></div><div><font color="#888888">Gerencia de Meteorología y Climatología</font></div><div><font color="#888888">Servicio Meteorológico Nacional</font></div><div><font color="#888888">Ext. 3156</font></div><br><br><div><hr id="stopSpelling">From: davidnielsen@id.uff.br<br>Date: Wed, 19 Nov 2014 13:12:34 -0200<br>To: gradsusr@gradsusr.org<br>Subject: [gradsusr] Standard deviation of an area<br><br><div dir="ltr"><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">Dear all grads users, </div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);"><br></div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">I would like to calculate the standard deviation of an area in Grads.</div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);"><br></div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">I have a NetCDF wekly time series of SST (attached), and I am able to calculate the average of a certain area (defining LAT and LON) value using the "aave" formula, for each value of time, and generate a new series - ok. In addition to this seires, I would like to generate a series of standard deviations of this average, also for each time in the series. In other words, I need to to know, for a given area and time, what is the standard deviation of my variable?</div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);"><br></div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">Please find attached an example of a NetCDF file I want to treat this way: </div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">1. Calculate average of SST in a certain area (lat, lon) using aave, for each time value</div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">2. Calculate standard deviation of SST in a certain area (lat, lon), for each time value</div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);"><br></div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">Would anybody have any kind suggestions on how to address this #2 task?</div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);"><br></div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);">Many thanks in advance,</div><div class="ecxgmail_default" style="font-family:tahoma,sans-serif;color:rgb(0,0,0);"><br></div><br clear="all"><div><br></div>-- <br><div class="ecxgmail_signature"><div dir="ltr"><font face="tahoma, sans-serif" color="#20124d">David Marcolino Nielsen</font><div><font face="tahoma, sans-serif" color="#20124d">Engenharia de Recursos Hídricos e do Meio Ambiente</font></div><div><font face="tahoma, sans-serif" color="#20124d">Universidade Federal Fluminense</font></div><div><font face="tahoma, sans-serif" color="#20124d"><a href="mailto:davidnielsen@id.uff.br" target="_blank">davidnielsen@id.uff.br</a></font></div></div></div></div>
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