Message-Id: <6.2.1.2.2.20071119162454.03034480@atouf.cls.cnes.fr>
Date: Mon, 19 Nov 2007 17:08:21 +0100
To: "H.Fagard" <herve.fagard@ign.fr>, ids.analysis.forum@cls.fr
From: Laurent soudarin <laurent.soudarin@cls.fr>
Subject: Re: [ids.analysis.forum] DORIS on-site meteorological data
In-Reply-To: <a0624083dc285e6635738@[172.16.0.131]>
References: <a0624083dc285e6635738@[172.16.0.131]>
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Dear Hervé,

>As you know all DORIS stations are equiped with an integrated 
>meteorological station measuring pressure, temperature and humidity.
>Installing and maintaining these equipments involves quite a bit of work 
>and expenses.
>A survey is being carried out with the users of DORIS data and products, 
>to assess how useful these in situ meteorological data are.
>I am therefore asking the analysis centers:
>- Do you use the temperature, pressure and humidity values measured by the 
>DORIS stations?

we don't used these data any longer, but outputs from ECMWF meterological 
model.

>- If you use these data:
>-- how do you handle missing data (e.g. when a sensor is out of order)?
>-- what would be the consequences on your analyses if such data were no 
>longer supplied for the whole network?

none, except maybe for comparison studies between the interpolated 
zenital  tropospheric delays from the ECMWF grids
and ZTD at the station derived from in-situ measurements.

Laurent

PS: Couldn't they be interesting for meteorological instituts? in 
particular, measurements from very isolated regions (Crozet...) ?