Integration of Remote Sensing and GIS Technology for detecting Erosion and Accretion of Sandwip Island, Bangladesh

M H Uddin, M H Sarker, A Mohammad, S B Saha, S Chakma

Abstract


Abstract

Natural resources of off shore island of Bay of Bengal (BoB) have been used for multiple purposes and have strongly influenced socio-economic development. Conventional methods of collecting information about coastal area are relatively costly, time consuming and inaccurate. On the other hand Remote Sensing (RS) observation with its unique capability provides cost-effective support in compiling the latest information about the environment of coastal area, while Geographic Information System (GIS) facilitates uses for multidisciplinary analysis and decision support. Integrated analysis of RS and GIS can gives a vital input for better planning for exploration, exploitation, conservation and management of resources. In this study Sandwip Island of the BoB has been selected as study area.

Landsat MSS (80 m) data of 1973, Landsat TM (30 m) data of 1989 and 2010 were used to generate digital data base of different time period, analysis of erosion and accretion and finally produced digital map of Sandwip island of Bangladesh in different time period.

For land water layer generation, near-infrared band of (0.76 to 0.90 μm) has been used to develop an algorithm. In this study DN values of water in band 4 of Landsat-TM have been collected carefully from the histogram of the selected images and applied in the developed algorithm. Erosion and accretion map has been produced using raster base GIS and ArcGIS analysis. The study reveals that about 7068 ha area has been disappeared in the sea during 37 year (1973-2010) of which during 1973 to 1989 the rate of erosion per year was about 316 ha but during 1989 to 2010 it was reduced to 24 ha only.

Keywords: Conventional, Remote sensing, GIS, Erosion, Accretion

References


REFERENCE

BBS (Bangladesh Bureau of Statistics). Population Census 2011.

Brammer, Hugh., 1996. The Geography of the Soils of Bangladesh, Dhaka. 287.

Encyclopedia Britannica 1999-01-13; http//:www.eb.com:180

Hadjimitsis, D. G., Papadavid, G., Agapiou, A., (2010) Atmospheric correction for satellite remotely sensed data intended for agricultural applications: impact on vegetation indices, 89-95. In Natural Hazards And Earth System Science 10 (1).

Hossain, M.S., Lin, C.K., Tokunaga, M., Demaine, H., and Hussain, M.Z., (2003). Land use zoning for solar salt production in Cox’s Bazar coast of Bangladesh: A Remote Sensing and GIS analysis. Asian Journal of Geo Informatics, 3 (4), 69-77.

http//:www.noaa.gov/public-attairs/mkgsg/mk96/erosion.html

Magnus Krantz (1999), Coastal Erosion on the Island of Bhola, Bangladesh; Earth Science Centre, Department of Physical Geography, GÖTEBORG University, B178, Sweden.

Sarker, M. H., Akhand, M. R, Rahman, S. M. M., Molla, F., (2013). Mapping of Coastal Morphological Changes of Bangladesh using RS, GIS and GNSS Technology. The International Journal of Remote Sensing and GIS. ISSN: 2052-5583, (27-34).

Siddiqi, Masroor-Ul-Haq. Land Erosion and Accretion in the Coastal Area. Bangladesh, Centre For Advanced Studies. Dhaka. 168 p.

Viles, H, Spencer., Tom.; (1995), Coastal Problems. London. 350 p.

Internet

Encyclopædia Britannica 1999-01-13; http//:www.eb.com:180

http//:www.noaa.gov/public-attairs/mkgsg/mk96/erosion.html


پاراگلایدر Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

ISSN : 2251-1563