Dunstan Anthony (2017) Projection of sea level change and potential inundation coverage along the coast of Sandakan town, Sabah. Masters thesis, Universiti Malaysia Sabah.
![[img]](https://eprints.ums.edu.my/style/images/fileicons/text.png) |
Text
24 PAGES.pdf Download (1MB) |
|
Text
FULLTEXT.pdf Restricted to Registered users only Download (20MB) |
Abstract
In recent years, there has been an increase in the frequency and severity of extreme weather condition particularly in coastal areas which are ostensibly linked to changing climate. Recent climate change analyses indicated many uncertainties at global observation scale, thus investigating the need for an intensive examination at local level to understand vulnerability and develop adaptive capabilities. This study focuses on the need to evaluate the projection of future sea level inside Sandakan Bay and its potential impacts in the form of flooding, inundation and beach erosion. The main objectives of this study are to determine the sea level trend based on historical sea level data in Sandakan; to simulate future SLR in the year 2020, 2040 and 2060 and to identify and calculate future inundation area due to SLR for Sandakan Town coast. The 18-year Sandakan tidal data (1994-2011) was used to determine MSL and sea level trends. The assessment of potential flood prone area was done with a numerical model tool, the MIKE 21 Flexible Mesh (FM) and Geographic Information System (GIS). Digital Terrain Model (DTM) with a Sm resolution and 3km width from water edge, integrated with bathymetry produced swift inundation pattern of the water-land boundary. The model calibration used measured water level and current meter data collected from 8th to 22th May 2012. The inundation map was drawn and calculated using Geographic Information System (GIS). Result shows that MSL is 2.706 m while hourly, daily, monthly and yearly sea level trends are 6.13, 5.51, 5.89 and 6. 78 mm/yr respectively. The 2020, 2040 and 2060 projected water levels were estimated at 49.04, 171.6 and 294.2mm respectively from the baseline year of 2012. Five potential impacted areas were identified, namely: Bumputera Sim-Sim Village (A), Old Sandakan Town (B), Sandakan Port Authority (C), Industrial Zone of Jalan Bokara to Jalan Sapi (D), and IOI Edibles Oil Sdn Bhd (E). For 2060, the total potentially inundated area for Area A, B, C, and D are 1 km2 and 0.429 km2 for Area E. This study highlights the necessity of incorporating other day-to-day influencing factors and extreme events on the identification of inundation areas based on tidal data to obtain more accurate inundation profile due to sea level rise.
| Item Type: | Thesis (Masters) |
|---|---|
| Keyword: | Sea level rise, Coastal flooding, Inundation modeling, Sandakan Bay, MIKE 21 FM |
| Subjects: | Q Science > QC Physics > QC1-999 Physics > QC851-999 Meteorology. Climatology Including the earth's atmosphere |
| Department: | INSTITUTE > Borneo Marine Research Institute |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 03 Jul 2025 10:44 |
| Last Modified: | 03 Jul 2025 10:44 |
| URI: | https://eprints.ums.edu.my/id/eprint/44298 |
Actions (login required)
 |
View Item |