STUDY OF SEA LEVEL RISE USING SATELLITE ALTIMETRY DATAIN THE SEA OF DUMAI, RIAU, INDONESIA

Geoplanning: Journal of Geomatics and Planning

Yudi Setiawan¹  Cecep Kusmana²  Dewi Ariana³ 

[1] Department of Forest Conservation and Ecotourismand Environmental Research Center, Faculty of Forestry, Bogor Agricultural University;Department of Silviculture, Faculty of Forestry, Bogor Agricultural University;Graduate Program of Natural Resources and Environmental Management, Bogor Agricultural University;

关键词: sea level rise;    satellite altimetry;    sea level anomaly;   

DOI  :  10.14710/geoplanning.4.1.75-82

来源: DOAJ

【 摘 要 】

Climate change and global warming has impacted the entire world. It has caused ice melting at the poles, climate extreme event, land subsidence which further affected sea level to rise, such as particularly, in Dumai coastal areas. To date, sea level rise is one of the important global issues. This increases the vulnerability effect in coastal areas which threatens human life, especially those living in coastal regions. Sea level rise can be forecasted by satellite imagery like ENVISAT, Topex/Poseidon, Jason-1 and Jason-2. This paper presents an approach to quantify the sea-level variations and sea level trend based on a combination of multi-mission satellite altimetry data over a period of 21 years (1993-2014). Monitoring of sea level rise was conducted by taking data from 6 stations. SLA was calculated using a typical moving average to reduce fluctuation. Sea level rise was calculated using a linear regression. Positive sea-level linear trends for the analysis period were estimated for sea level rise. The results showed that the range sea level rise reaching 4.80 mm/year to 5.61 mm/year has occured in Dumai. Dumai is predicted to have an additional sea level of 0.17-0.20 m by the year 2050, 0.41-0.48 m by the year 2100 and 0.65-0.76 m by the year 2150. The sea level rise trends in the North West part Dumai were higher than the other stations and down to South East. Based on the predicted results, Dumai should prepare plans to mitigate the rising of sea levels.

【 授权许可】

Unknown