[gradsusr] Calculating 75 percentiles for rainfall threshold value

[Bamidele OLORUNTOBA]

Dear Govind,
I am not aware if GrADS can get that done easily. May be I haven’t used it enough. I use CDO to perform this operation and then use grads to visualize. This looks like you are interested in percentile of a given time span. Use CDO’s “timpctl” command. You can either get it done in 3 lines or a 1 line piped command.   

Bamidele J. OLORUNTOBA,
Numerical Weather Modelling Expert,
Satellite and Weather Information for Disaster Resilience in Africa (SAWIDRA)
African Center of Meteorological Application for Development (ACMAD)
55 Avenues des Ministeres,
Niamey-plateau,
Republic of Niger.
Mail:o.bamidele at acmad.org 
Skype:deleoloruntoba
Twitter: @deleoloruntoba 
LinkedIn: Bamidele OLORUNTOBA

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Sent: Sunday, July 21, 2019 18:09
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Subject: gradsusr Digest, Vol 113, Issue 21

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Today's Topics:

   1. Calculating 75 percentiles for rainfall threshold value
      (Govind Jha)


----------------------------------------------------------------------

Message: 1
Date: Sun, 21 Jul 2019 11:30:43 +0000 (UTC)
From: Govind Jha <govind_jha65 at yahoo.com>
To: gradsusr at gradsusr.org
Subject: [gradsusr] Calculating 75 percentiles for rainfall threshold
	value
Message-ID: <1372694149.2637430.1563708643658 at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

Dear Sir,
Greetings 

I am trying to calculate?75th percentile for rainfall threshold value for a certain season using GPM IMERG daily data using GrADS.I can't find any document in grads nor able to imagine where to start. Can
anybody please share any script or help me how to compute it?Thank you, in advance, for any kind of help of suggestion in this regard.


Govind Jha

Researcher

Central Department of Hydrology and Meteorology
Nepal






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