------------------------------------------------------------ GGP-ISDC Metadata-Formsheet for the GGP-Participants ------------------------------------------------------------ IMPORTANT NOTE: The items preceded with a * are mandatory They MUST be filled in. The other ones are facultative: you may send the answer later. 1) Authorities for the Superconducting Gravimeter (SG) Station *Name Tonie M. van Dam *First Name Tonie *Telephone (303) 492-5670 *Fax (303) 492-1149 *E-mail tonie@robeson.colorado.edu *Access to the data (Y/N) y WWW-Address not available yet 2) Authorities for the Scientific Institution *Name Tonie M. van Dam *First Name Tonie *Access to the data (Y/N) y Telephone (303) 492-5670 Fax (303) 492-1149 E-mail WWW-Address not available yet 3) SG Station Site *Location Name Boulder, Colorado *Longitude [° E] -105.2328 E *Latitude [° N] 40.1308 N *Elevation [m] 1682 M *Country USA *Address 8600 North 39th St., Longmont, CO 80503, USA *Site Code (see remark) BO Instrument room Temperature relatively constant at 20 deg. C Instrument room Humidity relatively dry General conditions (quiet, noisy, ..) quiet Rock type sediment Short description of the instrument room SG on a pier (1.5 m in sediment); constant room temperature and humidity. Remark: The site code are the two letters as mentioned in the GGP newsletters: BA Bandung BE Brussels BO Boulder BR Brasimone CA Cantley CB Canberra ES Esahi KY Kyoto MA Matsuhiro MB Membach ME Metsahovi PO Potsdam ST Strasbourg SY Syowa TH Thessalonika VI Vienna WE Wettzell WU Wuhan 4) Scientific Institution *Location Name mandatory Department of Commerce, NOAA, Table Mtn. Gravity Observatory, Longmont, CO *Country mandatory USA *Address mandatory 8600 North 39th St, Longmont, CO 80503 WWW-Address facultative http://www.ngs.noaa.gov 5) SG Station *SG Instrument Name C024 *Start of Registration April, 1995 *Operational Status (operational, planed, service mode, ...) operational, periodic maintenence and upgrades planned 6) Measurands (gravity and environmental parameters) and Instruments *Type (*Gravity, *Air Pressure, Temperature, Humidity, Ground Water Level, Rain Fall, Snow Loading , ...) gravity *Component vertical gravity *Meter (SG, Barometer, Hygrometer, Thermometer, ...) SG Unit volts Calibration Factor 80.341 microgal/volt Method/Sensor (1 inch sphere) Manufacturer GWR *Type (*Gravity, *Air Pressure, Temperature, Humidity, Ground Water Level, Rain Fall, Snow Loading , ...) air pressure *Component *Meter (SG, Barometer, Hygrometer, Thermometer, ...) barometer Unit volts Calibration Factor 133.286 mbar/volt Method/Sensor (1 inch sphere) Manufacturer 7) Data Acquisition System (split for measurands) Name Gravity Input Channel Sampling Period [s] Recording Period [s] 5 s Resolution [Bit] AD-Converter Least Significant Bit (Precision) Recorder Type Name Pressure Input Channel Sampling Period [s] Recording Period [s] 60 s Resolution [Bit] AD-Converter Least Significant Bit (Precision) Recorder Type 8) Clock Type Accuracy 9) Filter (Analog and Digital split for Measurands) Type Corner Period [s] Time Lag [s] Number of Coefficients Attenuation at Nyquist Frequency [db] Statements for each of the 9 parts can be repeated as often as necessary for different references. ---------------------------------------------------------------