<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000'>Hi Kishore,<div><br></div><div>Roughness length is not a quantity that can be calculated in grads (or any other data analysis program). It is a property of the land or water surface that's used in the PBL parameterization. Most models provide roughness length as an output variable.</div><div><br></div><div>Best regards,</div><div><br><br><div><span name="x"></span>Eric L. Altshuler<br>Research Scientist<br>Center for Ocean-Land-Atmosphere Studies<br>253 Research Hall, Mail Stop 6C5<div>George Mason University</div><div>4400 University Drive<br>Fairfax, VA 22030 USA<br><br>E-mail: ela@cola.iges.org<br>Phone: (703) 993-5725<br>Fax: (703) 993-5770</div><span name="x"></span><br></div><br><hr id="zwchr"><b>From: </b>"Kishore Ragi" <kishoreragi@gmail.com><br><b>To: </b>"GrADS Users Forum" <gradsusr@gradsusr.org><br><b>Sent: </b>Monday, June 9, 2014 10:12:55 AM<br><b>Subject: </b>[gradsusr] how to calculate roughness length in grads...<br><br><div dir="ltr">Dear grads users,<div><br></div><div>Does anyone have grads script to calculate roughness length?</div><div><br></div><div>Thank you</div><div><br></div><div>Regards,</div><div><br></div><div>Kishore</div></div>
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