From: Jim Ray (USNO 202-762-1444) <jimr@maia.usno.navy.mil>
Message-Id: <200108211844.OAA28219@maia.usno.navy.mil>
Subject: [IGSMAIL-3482]: new USNO met package
To: igsmail@igscb.jpl.nasa.gov
Date: Tue, 21 Aug 2001 14:44:33 EDT
Sender: owner-igsmail
Precedence: bulk

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IGS Electronic Mail      21 Aug 11:44:34 PDT 2001      Message Number 3482
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Author: Jim Ray

Thanks to the efforts of Seth Gutman <Gutman@zeus.fsl.noaa.gov> a new
met package has been installed at USNO.  The data should begin to be
reported shortly.  The package is a GPS Surface Observing System (see
http://maia.usno.navy.mil/eo/gsos-met.pdf) from NOAA's Forecast Systems
Laboratory with the following specifications:

8.1  Humidity Sensor Model    : HUMICA H-sensor (pn 16663)
       Manufacturer           : Vaisala
       Data Frequency         : 15 seconds
       Accuracy (% rel h)     : +/-1%(0...90%RH)
                              : +/-2%(90...100%RH)
       Effective Dates        : 21-AUG-2001 - present
       Notes                  : NOAA GSOS # 062

8.2  Pressure Sensor Model    : PTB220
       Manufacturer           : Vaisala
       Data Frequency         : 15 seconds
       Accuracy (mbar)        : +/-0.1
       Height Diff to GPS (m) : -0.724 (m)
       Effective Dates        : 21-AUG-2001 - present
       Notes                  : NOAA GSOS # 062

8.3  Temperature Sensor Model : PT100 RTD 1/s DIN 43760B
       Manufacturer           : Vaisala
       Data Frequency         : 15 seconds
       Accuracy (deg C)       : +/-0.1 @ 20.0C
       Effective Dates        : 21-AUG-2001 - present
       Notes                  : NOAA GSOS # 062

In addition to Seth, I would like to thank Ernie Marion and his
colleagues at NOAA/NGS's GODC for their help with the installation.

--Jim