From: Jim Ray (USNO 202-762-1444) 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 ****************************************************************************** IGS Electronic Mail 21 Aug 11:44:34 PDT 2001 Message Number 3482 ****************************************************************************** Author: Jim Ray Thanks to the efforts of Seth Gutman 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