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<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Dear</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> Sir</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> I have emission field from WRF-Chem model over the Indian Region, at the resolution of 1/4 Deg,</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> with</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> True Latitude 1 = 22.875</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> Center Lat = 22.875</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> Center LON = 82.875</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> DX = 1/4 Deg </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> North West corner Lat Lon ( 36.79, 66.77) </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> South West corner Lat Lon (7.33, 66.77)</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> North East Corner Lat Lon (36.79, 98.98)</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> South East Corner Lat Lon ( 7.38, 98.98) </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">if with 1/4 deg we are calculation number of Grid it will come </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> North South Grid number 117 </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> West East Grid number 129</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">but in WRF-SI, Dx we need to give in Km </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">if considering 1 Deg = 110 Km then dx will come 27.5 km</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">that will create 121 X 121 Grid with same center and corner lat lon for Mercator projection </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">so if giving 121 X 121 in ctl file then emission field is shifting from it's original lat lon position. </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">i am attaching here data file gs file and ctl file, can you please go through it</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> your sincerely </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Suraj </span></p><br> </div>
<div><span class="gmail_quote">On 11/13/07, <b class="gmail_sendername">Brian Doty</b> <<a href="mailto:doty@cola.iges.org">doty@cola.iges.org</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">A Mercator grid is typically rectangular in lat/lon, and can be dealt<br>with using the "levels" keyword on the ydef statement in the
<br>descriptor file... Brian<br><br>On Nov 13, 2007, at 5:43 AM, Suru Polade wrote:<br><br>> I have a pre-projected field in a Mercator projection<br>><br>> Is there any way in grads to work with Mercator
<br>> projection, as this projection is not there for pre-projected data.<br>><br></blockquote></div><br>