DEVELOPMENT OF SURVEYING AND MAPPING TECHNOLOGY IN
VIETNAM
Dr. Sc. DANG Hung VO and Dr. LE Quy Thuc,
Vietnam
Key words:
Abstract
During the last decade, along with the renovation of the
socio-economical management policy in Vietnam, the Vietnamese
community of surveyors and cartographers experienced memorable
challenges and opportunities as well. Since the beginning of the last
decade of the 20th century, renovation and development in surveying
and mapping technology had been undertaken, aiming at covering the
increasing needs in surveying and mapping, involved with the economic
evolution of the country.
This paper is focused on describing this technology development
from 1990 to 2000 and sketching a prospect for the next future in
Vietnam. The technical renovation and development benefited advantages
of advanced space and information technology, from which the result is
the setting-up of a production line of digital products in the
following fields:
- Edification of the National control network, using precise GPS
measurement techniques.
- Implementation of the GPS-navigation facilities and
GPS-controlled techniques in aerial photography.
- Implementation of digital techniques in topographic mapping
(Digital Stereo-plotter), map compilation and map production.
- In cadastral mapping, RTK-GPS, Totalstation and Orthophoto
techniques are used
- The hydrographic survey is performed by using digital
echosounder and MSK-GPS.
In 2000, the Government of Vietnam decided to apply the new
geodetic reference system VN-2000, based on the WGS84 ellipsoid and
the UTM projection. In 2002 the 1/50 000 -scale basic topographic map
system, covering the whole territory of Vietnam, had been planned to
be completed, thus creating the base ground for the generation of a
national geodata-base. In the same year, a modern satellite image
receiving station, enabling the supply of Landsat, Spot, Radarsat,
Quick Bird images to remote-sensing users, is expected to be
established. Since 2005, the new digital cadastral map series and land
record system will play an important role in real-estate management.
The production of a sea bed topographic map series in 1/10 000 scale
for the coastal zone and in 1/50 000 scale for the continental shelf
of Vietnam is scheduled to be carried out in a time span of ten years,
beginning at the year 2000.
CONTACT
Dr. Sc. DANG Hung Vo
General Department of Land Administration
Secretary-General of the Association of Geodesy, Cartography and
Remote Sensing
71 Nguyen Chi Thanh St.
Hanoi
VIETNAM
Tel. + 84 4 766 4202
Fax + 84 4 823 6066
Email: vo.gdla@hn.vnn.vn
Dr. LE Quy Thuc
President
Association of Geodesy, Cartography and Remote Sensing
71 Nguyen Chi Thanh St.
Hanoi
VIETNAM
Tel. + 84 4 766 4202
Fax + 84 4 823 6066
E-mail: lequythuc@hn.vnn.vn
23 March 2001
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