Application of Remote Sensing imagery for investigation in the Haiphong estuarine and costal zone
Pham Viet Cuong, Nguyen Hong Cllau, Tran minh Hlen
Centre of Geography and natural resoutcon
NCSR of Vietnam
Introduction:
The HAI PHONG coastal zone has a dense river and tidal breaks weiem it is directed by claws and currents of the rivers calling in to the sea. By breakers and tides. Under the influence of all these factors many beaches. Sandbars. Flow marshland and mangrove have been formed. Causing the seawards intent transgression process on the centrally. The willing covers breakers. Swells and tidal currents have been eroding the shoreline. Causing the landwards sea erosion process
HAI PHONG is an economical developed region with high I immolation density. Large sea harbor and in connection with main water road and airhostess. It closes to important industrial. Agricultural and fish centers of the country.
Following the traditions local inhabitants have been outinomsly using mangrove forest and dirking literal region to enlarge area for agriculture and fishery. . The to the lack of necessary knowledge on ecological and naturenvirenmental real touchup in outfall region. They usually spontaneously lead dicer leery transgression in many places. Thus cause environment hangs and direct damage of the life resource. Labor and money lost.
Therefore, it is now high time to conduct estuarine coastal region survey and assessment to carry out inventory and supervision works for coastal zone. To analyze the rate of sandbar acceptation and littoral ersion for proper utilisation and management.
Aim of study:
The purpose of this study is to investigate the estuarine and coastal zone aided remote sensing imagery with short-term observation dates specifically the following objectives were pursued:
- To inventory landuse patterns for the estuarine
and covestal zone of Hai phong by using remote sensing dates
- To evaluate the estuarine and coastal resources
- To detect change of shorline (coastal erosion
and accretion) tidalflats.
- To recommend proper utilization and management.
Study Area
The estuarine and coastal zone of Hai phong is situated along a part of the north coast of Viet nam. This study aren falls within 106°35' to 106° 55' longtitude.
20° 36' to 20° 58' latitude
It was recored within:
A landsnt 2 frame 135/46
A landsat 4 frame 126/308 (see figure 1)
A spot 1 frame 271/308
This area is considered typical for the north estuarine and coastal zone of viet nam.
Figure 1: Map of North of Vietnam showing the study area
