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<div><span></span>You can create GrADS maskout data file from the shape file following this tutorail: <span style="background-color: rgba(0, 0, 0, 0); font-size: 10.5pt; line-height: 1.5;"></span><a href="http://www.meteothinker.com/desktop_create_grads_maskout.html" style="font-size: 10.5pt; line-height: 1.5; background-color: window;">http://www.meteothinker.com/desktop_create_grads_maskout.html</a><span style="font-size: 10.5pt; line-height: 1.5; background-color: rgba(0, 0, 0, 0);"> . Text coordinate file can also be created through changing the 'Ouput Format' to ASCII wmp File.</span></div><span style="background-color: rgba(0, 0, 0, 0);"></span>
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<div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">*************************************************</span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">Dr. Yaqiang Wang</span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">Chinese Academy of Meteorological Sciences (CAMS)</span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">46, Zhong-Guan-Cun South Avenue</span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">Beijing, 100081</span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">China</span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"> </span><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><a href="mailto:yaqiang.wang@gmail.com" target="_blank" style="font-family: 微软雅黑; font-size: 14px; line-height: 21px;">yaqiang.wang@gmail.com</a><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><a href="http://www.meteothinker.com" target="_blank" style="font-family: 微软雅黑; font-size: 14px; line-height: 21px;">http://www.meteothinker.com</a><br style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;"><span style="color: rgb(136, 136, 136); font-family: 微软雅黑; font-size: 14px; line-height: 21px;">**************************************************</span></div></span></div>
<blockquote style="margin-top: 0px; margin-bottom: 0px; margin-left: 0.5em;"><div> </div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b> <a href="mailto:mwang79@asu.edu">Meng Wang</a></div><div><b>Date:</b> 2015-05-25 00:07</div><div><b>To:</b> <a href="mailto:gradsusr@gradsusr.org">gradsusr</a></div><div><b>Subject:</b> [gradsusr] Mask out Canada and Mexico, only including US grid cells in the analysis</div></div></div><div><div class="FoxDiv20150525084925389825"><div dir="ltr">Dear Gradsusr,<div><br></div><div>I would like to have use a text file about the coordinates of conterminous US boundary, and mask out the region outside it (mask out Canada, Mexico) for my analysis. Could you let me know how to create this boundary file and how to mask out the regions outside? </div><div><br></div><div>Thank you!</div><div><br></div><div>Best,</div></div>
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