The impact of sea level rise on coastal region of Selangor, Malaysia / Muhammad Faiz Azemee

Climate change interacts in a particular perspective with varieties of human activities and other drivers of coastal change. Phenomena of Sea level rise (SLR) is the major impacts of global warming. SLR and Climate Changes may impact critical infrastructures such as jetty, coastal road, and the local community. This research aims to investigate the impact of inundation due to Sea Level Rise along the coastal Selangor using the geospatial technique. The main objectives of this study are to predict the sea level rise in the year 2020 until 2060, thus determine the impact due toward infrastructure and land use along the Selangor shoreline. Data used were three altimeter satellites located at Border Malaysia - Thailand, Border Penang – Perak, and Straits Johor and three JUPEM tide gauge data. Hydrodynamic modelling along the coastline was developed using MIKE 21 Flow Model. This hydraulic stimulation numerical is an ideal method for coastal studies. The parameter used consists of bathymetry, currents speed, current direction and tidal data. Seawater prediction was determined by calculation using algorithm formula from (NAHRIM, 2010). Then, the impact of sea level rise on the whole study area was derived using ArcGIS 10.3 and Google Earth Pro to identify the potential infrastructures and land use against inundation. The result showed the seawater rising to 0.051 – 0.289 in the year 2020 until 2060. Next, the impact of inundation shown 192 - 274 units of infrastructures were potential to affected in period 40 years. Lastly, the cropland showed the most impact land use area by inundation ranging from 14.3 – 18.4 percent and followed by settlement area 3.9 – 5.2 percent.