[Wrf-users] AWS data assimilation

[ashish no routray]

Dear Dr.R.Jagannathan
I am using IMD AWS data along the west coast of India for simulation of heavy rainfall event during monsoon period through 3DVAR data assimialtion system. It is very good surface data and also its good impact in forecast. In 3dvar basic weather parameters are assimilate. The parameters you can measured mainly surfcae: pressure, dry bulb temperature, wind speed, wind direction, relative humidity.
Here I am attaching a sample data and I have been used these data set in WRF-3dvar data assimilation system along with other surface data.


*********************************************************************
 
Name of the station:		HARNAI		Year	:2002		
Latitude		17°49'00"N	Month	1st JUNE TO AUGUST 20th 		
Longitude		73°06'00"E					
Height of the station above mean sea level: 16.8m									
DATETime(UTC)	SLP	DBT	WS	WD	RH	RAIN
	Hh mm	mb	(°C)	Kts	degree	%	mm
6/1/20020:00:00	1006.1	29.1	0.1	109.7	80.6	0
	1:00:00	1006.5	29.2	0	196.8	81.9	0
	2:00:00	1007	29.2	4	201.1	81.5	0

**********************************************************************
I hope it will help you. One of my colleague Mr. Seshagiri he is working in your Dept. and he is in touch with me regarding the WRF model. 

Good Luck!
Ashish Routray
CAS, IIT Delhi

On Fri, 07 Dec 2007 wrf-users-request at ucar.edu wrote :
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>    1. AWS data assimilation minimum weather parameter required
>       (jagan at tnau.ac.in)
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>----------------------------------------------------------------------
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>Message: 1
>Date: Thu,  6 Dec 2007 17:56:45 +0700
> From: jagan at tnau.ac.in
>Subject: [Wrf-users] AWS data assimilation minimum weather parameter
> 	required
>To: wrf-users at ucar.edu
>Message-ID: <1196938605.4757d56d71aca at ns1.tnau.ac.in>
>Content-Type: text/plain; charset=ISO-8859-1
>
>Dear Users,
>
>We are planning to set up AWS units throughout our state for assimilation and
>use it in 3D VAR for developing high resolution forecast. The grid spacing of
>AWS will be around 15 to 20 KM. At present we are using NCEP GFS data for our
>5km resolution forecast. Please inform me what are the weather parameters we
>need to measure using AWS?
>
>I will be grateful for a return mail reply.
>
>Please visit our Agri Weather Bulletin page
>http://agmet.tnau.ac.in/acrc/index.html
>
>With regards
>Dr.R.Jagannathan
>Professor and Head
>Agro Climate Research Centre,
>Tamil Nadu Agricultural University,
>Coimbatore - 641 003 India
>
>PHONE: Off: 91-422-6611519 Res: 91-422-2453600
>        Fax: 91-422-2430657 Mob: 91-94438 89891
>
>
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>End of Wrf-users Digest, Vol 40, Issue 3
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ASHISH ROUTRAY
Project Scientist & Research Scholar
Centre for Atmospheric Sciences
Indian Institute of Technology Delhi
Hauz Khas
New Delhi-110016
India
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