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Remote GPS Station at Langhovde, Dronning Maud Land, Antarctica

Hiromichi TSUJI and Kenichi MATSUO*

Geographical Survey Institute, Japan*JARE43 summer party member

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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

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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

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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)

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IGS Global Tracking Network http://igscb.jpl.nasa.gov/netwok/netindex.html

SYOG

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GPS and VLBI antennasat Syowa station

GPS (IGS ID: SYOG)

VLBI

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IGS station

Remote GPS station

Crustal deformation surveys around bare rock areas

GPS controlpoint surveys

Continuous deformationobservation

Needs of Remote GPS station

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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.

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LocationSYOG

LANG

Eastern Dronning Maud Land

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Specification of RGS(LANG)

Unit Name of equipment SpecificationGPS 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°SupplyBattery SBS-300 (12) 300AH, 2V, 20kg,

- 40 - 60C°Data collector XC6000-D-16 (2) OS: Windows 3.1

486XL50MHz, HD 340MB10W, - 20 - 60C°

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Outlook of RGS(LANG)Solar panels & Receiver unit

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Wind power generator & Antenna Pillar

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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

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Baseline length between SYOG and LANG (27km) Preliminary solutions by Trimble

Geomatic Office (TGO) with Broadcast Eph.