[RegCNET] Re : Fwd: Suggestion

[Bamba Sylla]

Hi Rajesh,
If you have some doubts just sum up values for all timesteps and you will have 
the cumulative rainfall for the month.
d sum(tpr,t=1,t=240)

cheers !



 ***************************************************
Mouhamadou Bamba SYLLA, PhD
Post-Doc Fellow, Earth System Physics
International Centre for Theoretical Physics
Strada Costiera 11, 34100 Trieste, Italy
Office tel: 0039 040 2240 385
Cell: 0039 34 71 94 06 55 
emails: msylla at ictp.it, syllabamba at yahoo.fr 
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________________________________
De : rajesh maurya <rksmaurya at gmail.com>
À : regcnet <regcnet at lists.ictp.it>
Envoyé le : Lun 25 octobre 2010, 9h 54min 28s
Objet : [RegCNET] Fwd:  Suggestion


Hello All,
 
      I am plotting the contour for precipitation , in that it is showing 3 
hourly data( In SRF file ). Here I am plotting monthly precipitation the command 
i am using is  

ga-> d ave(tpr,t=1,t=240)*30 (mm) and found the value 542, 479,455,512,513 mm ( 
year-  2000, 2001,2002, 2003, 2004) but observed data (IMD Delhi, India)  same 
time and same grid are found 799, 797, 658, 854, 815 mm respectively.
 
again using  Mr. Md. Mizanur Rahman suggestion using command ga-> d 
ave(tpr,t=1,t=240)*8*30 (mm) and found the values 4340, 3832, 3643, 4099, 4099, 
4103 mm respectively.


Please let me know If i am missing something.
 
Thanks
Rajesh Kumar Maurya
M.Sc(Tech)- Geophysics(Meteorology); Junior Research Fellow & Research Scholar
Department of Geophysics
Banaras Hindu University
Varanasi 221005
 
 
---------- Forwarded message ----------
From: mizanur rahman <mrahman426 at yahoo.com>
Date: Mon, Oct 25, 2010 at 11:11 AM
Subject: Re: [RegCNET] Suggestion
To: rajesh maurya <rksmaurya at gmail.com>



hi rajesh
I think your formula is wrong. Because you are multiplying only by 30, it is not 
correct. It should be multiplied by 24*30, because you are doing average (t=1, 
t=240), after averging you will get one hour rainfall after that you will 
multiply 24 to average rainfall then you will get 24 hours rainfall. i, e 
complete formula for one month will be ave(t=1, t=240)*24*30 then you will get 
one month rainfall (mm).  
 
regards
 Md. Mizanur Rahman
Research Officer
SAARC Meteorological Research Centre (SMRC)
Plot No# E-4/C, Agargaon
Sher-e-Bangla Nagar
Dhaka-1207, BANGLADESH
Cell Phone: +88-01726652541
Phone: +88-02-9144374 (office)
Fax: +88-02-9144373 




________________________________
 From: rajesh maurya <rksmaurya at gmail.com>
To: regcnet <regcnet at lists.ictp.it>
Sent: Fri, October 22, 2010 4:51:04 PM
Subject: [RegCNET] Suggestion
 


Hello All,
 
      I am plotting the contour for precipitation , in that it is showing 3 
hourly data( In SRF file ). Here I am plotting monthly precipitation the command 
i am using is  ga-> d ave(tpr,t=1,t=240)*30 (mm) My question is about the 
command whether it is right one to get correct value or else .
 
Please let me know If i am missing something.


      
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