150 likes | 168 Views
Installation and Performance of a Remote GPS Station in Dronning Maud Land, providing continuous observation data in the challenging Antarctic environment since 2000.
E N D
Remote GPS Station at Langhovde, Dronning Maud Land, Antarctica Hiromichi TSUJI and Kenichi MATSUO* Geographical Survey Institute, Japan *JARE43 summer party member AGP'02 at LINZ, Wellington
Contents • Background • Geodesy programs under JARE • IGS station at Syowa from 1995 • Needs of Remote GPS station • Installation at Langhovde in Jan 2000 • Performance by Feb 2002 AGP'02 at LINZ, Wellington
JARE program • Japanese Antarctic Research Expedition started in 1956 in response to IGY • Organized by National Institute of Polar Research • Funded by Ministry of Education, Science, Sports and Culture • Syowa Station established in 1957 • On the East Ongul Island, the Eastern Dronning Maud Land (Lon. 39.58°, Lat. -69.01° ) • Observation parties stationed at Syowa • Summer party: 5 months from Nov with 20 staff • Wintering party: 17 months from Nov with 40 staff AGP'02 at LINZ, Wellington
Geodesy and Geographic Programs under JARE • Planned & Implemented by • Geographical Survey Institute (GSI) for Geodesy, Photogrammetry, and Cartography • Hydrographic and Oceanographic Information Department (former JHD) for Charting and Tide gauge observation, and • National Institute of Polar Research (NIPR) for Geosciences and Place names • Programs include • GPS, VLBI, and Remote sensing • Global Mapping (1:1M digital data) AGP'02 at LINZ, Wellington
SYOG IGS Global Tracking Network http://igscb.jpl.nasa.gov/netwok/netindex.html AGP'02 at LINZ, Wellington
GPS and VLBI antennasat Syowa station VLBI GPS (IGS ID: SYOG) AGP'02 at LINZ, Wellington
Needs of Remote GPS station IGS station Continuous deformationobservation GPS controlpoint surveys Remote GPS station Crustal deformation surveys around bare rock areas AGP'02 at LINZ, Wellington
RGS at Langhovde • GSI installed a remote GPS station at Langhovde in January 2000. • A built-in battery and wind / solar power plant enable continuous GPS observation at a remote site, 27 km south of Syowa base. • Currently, data with 120 seconds interval are stored in PC and retrieved by GSI staff once per year. AGP'02 at LINZ, Wellington
Eastern Dronning Maud Land Location SYOG LANG AGP'02 at LINZ, Wellington
Specification of RGS(LANG) Unit Name of equipment Specification GPS receiver Trimble 4000SSi-RC2 L1/L2, 10.5W, - 20-75C° Wind power Windside FM910 (2) Propeller-type, Supply 75W(10m/s) Solar power KYOCERA KC60S(12) 60W, - 40 - 90C° Supply Battery SBS-300 (12) 300AH, 2V, 20kg, - 40 - 60C° Data collector XC6000-D-16 (2) OS: Windows 3.1 486XL50MHz, HD 340MB 10W, - 20 - 60C° AGP'02 at LINZ, Wellington
Outlook of RGS(LANG) Solar panels & Receiver unit AGP'02 at LINZ, Wellington
Wind power generator & Antenna Pillar AGP'02 at LINZ, Wellington
Log of RGS(LANG) • Jan 2000 Installed • Feb 2001 First data retrieval • No data during mid May to mid August 2000 due to a malfunction of a battery charger connected to the wind power generator • Feb 2002 Second data retrieval • No data during mid May and early August 2001 due to a malfunction of the wind power generator • Repair of the wind power generator • Exchange of batteries AGP'02 at LINZ, Wellington
Baseline length between SYOG and LANG (27km) • Preliminary solutions by Trimble Geomatic Office (TGO) with Broadcast Eph. AGP'02 at LINZ, Wellington