<div dir="ltr"><div>Dear Rai ji,</div><div><br></div><div>you can calculate diabatic heating using this formula- which is a rate of conversion of theta (potential temperature) to absolute temperature</div><div><br></div><div><font size="1"><img src="cid:ii_15b3ebb467fec440" alt="Inline image 1" width="224" height="43" style="margin-right: 0px;"></font><br></div><div><font size="1"><br></font></div>there is one more method by Yanai et al. (1973) -- <div><font size="1"><img src="cid:ii_15b3ebceb61d6655" alt="Inline image 2" width="208" height="45" style="margin-right: 0px;"><br></font></div><br>for further reference please see this link- <br><a href="http://hannahlab.org/a-comparison-of-methods-for-estimating-diabatic-heating/">http://hannahlab.org/a-comparison-of-methods-for-estimating-diabatic-heating/</a><div><br></div><div>further, you can read these papers -- </div><div><b>Nigam et al. (2000)--- ENSO Diabatic Heating in ECMWF and NCEP–NCAR Reanalyses, and NCAR CCM3 Simulation</b></div><div>Hoskins, B. J., H. H. Hsu, I. N. James, M. Masutani, P. D. Sardeshmukh,
and G. H. White, 1989: Diagnostics of the global atmospheric
circulation based on ECMWF analyses 1979–1989.
Tech. Document WCRP-27, WMO/TD-No. 326, WMO, 217 pp<br><div>Nigam, S., 1994: On the dynamical basis for the Asian summer monsoon
rainfall—El Nin˜o relationship. J. Climate, 7, 1750–1771.<br></div><div>Li, C., and M. Yanai, 1996: The onset and interannual variability of
the Asian summer monsoon in relation to land–sea thermal contrast.
J. Climate, 9, 358–375<br></div><div>Schaack, T. K., and D. R. Johnson, 1994: January and July global
distributions of atmospheric heating for 1986, 1987, and 1988.
J. Climate, 7, 1270–1285.<br></div><div><br></div><div><br></div><div>Regards</div><div>Anubhav</div><div><br></div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 4, 2017 at 4:31 PM, praveen rai <span dir="ltr"><<a href="mailto:praveenrai583@gmail.com" target="_blank">praveenrai583@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><span style="font-size:12.8px">Hello all,</span><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I want to calculate diabatic heating at 850 hPa and at vertical levels. I haven't found any script to calculate it in grads. <span style="color:rgb(17,17,17);font-family:roboto,arial,sans-serif;font-size:12.8px">It would be a great help if anyone of you share the script to calculate diabatic heating or help me in calculating it.</span></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Thanking you</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Regards</div><span class="gmail-HOEnZb"><font color="#888888"><div style="font-size:12.8px">Praveen</div></font></span></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span style="font-family:arial;font-size:small">Anubhav Choudhary</span><div style="font-family:arial;font-size:small">Ph.D. Student (UGC-SRF)<br>School of Environmental Sciences<br>Jawaharlal Nehru University, New Delhi<div><br>Ph: +91-8527706122<br>Email: <a href="mailto:yoursanubhav@gmail.com" target="_blank">yoursanubhav@gmail.com</a></div></div></div></div></div></div>
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