GEOCAD-93, founded in January 1993 and based in Sofia, Bulgaria, is owned and managed by Zlatan Zlatanov. The company focuses on all types of topographic/geodetic work, including photogrammetry, development and...

3D laser scanning is a powerful measurement technology for obtaining 3D coordinates of object points at a speed of up to 5,000 points per second. But surveyors see lack of...

Excessive groundwater extraction in the Bandung Basin has led to rapid sinking of the water table and is hypothesised as the main cause of land subsidence. Periodical GPS surveys were...

Hexagon and Leica Geosystems (Switzerland) have acquired Mikrofyn A/S in Denmark. The company is one of Europe’s leading suppliers of machine automation and laser levelling and alignment equipment for the...

Pentax (Belgium) have announced the introduction of their new PLP-600 range of Lasers which are aimed at the general construction market. Based on the successful PLP-50 and PLP-5H ranges, the...

Sokkia (Japan) has extended its construction laser range with the introduction of the LP310 Leveling Laser. The LP310 is a self-levelling construction laser designed for long-range tasks, up to 600m...

Excessive groundwater extraction is probably the main factor causing land subsidence in urban areas of Indonesia. Decreases in groundwater level may reach 15 metres a year. Monitoring of land subsidence...

Datum Survey Products Ltd was formed in 1984 in Ossett, England by Paul Finney and Tim Long with the intention of creating a more affordable route into the construction survey...

Subsidence of the earth's surface caused by underground mining can be monitored using terrestrial land-survey methods. However, applying these is difficult in hilly terrain and densely forested or urbanised areas....

The classical geodesist’ dream of a dense, accurate, reliable and homogeneous countrywide levelling control network is a luxury even for the richest countries and will probably remain a dream. Prior...