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Network-based GPS Survey in Japan

In 2000, geodetic datum of Japan was shifted to the world datum (ITRF Coordinate System) and since the year 2002 authorised Electric Reference Stations (ERS) coordinates and their daily observation...

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Network-based GPS Survey in Japan

In 2000, geodetic datum of Japan was shifted to the world datum (ITRF Coordinate System) and since the year 2002 authorised Electric Reference Stations (ERS) coordinates and their daily observation...

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Sokkia Cable-Free GPS

Sokkia (KS, USA) has released the GSR2700 IS Fully Integrated L1/L2 System, featuring Bluetooth wireless technology for completely cable-free surveying. The system has been developed in collaboration with POINT, Inc....

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The Stresses and Strains of Legal Liason

Approximately 21,000,000 properties exist in England and Wales, ranging from small houses with tiny gardens to large rural estates. Boundary disputes are relatively rare and involve an average of 100mm...

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Helicopter Photogrammetry

Surveyors working on busy roads are constantly subjected to close misses from passing traffic; it can be worse. Helicopter photogrammetry is a survey technique designed to prevent fatalities. A complete,...

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Mapping the Earth from Space

The first permanent earth observation satellite, today known as Landsat 1, was launched 33 years ago. With a ground resolution of 80 metres, the Landsat Multispectral Scanner images provided an...

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