An aerial photo of Meulaboh coasts, captured on August 18, 2020. The dashed-yellow lines represent estimated coastal flooding limits after extreme waves in mid July 2020.

TDMRC team investigated coastal erosion in Meulaboh, Aceh

In mid July 2020,  a severe sea weather with extreme waves has eroded a significant length of Meulaboh coastline, West Aceh District of Indonesia. The waves also flooded an area within 200 m from coastline. This area is heavily occupied by a number of settlements after the 2004 Indian Ocean tsunami rehabilitation and reconstruction. For long time, the area has encountered a number of coastal flooding and coastal erosion events where a series of structures have been constructed to prevent further adverse impacts. However, since the the structures were rather sparsed, the coastal protections are yet to halt the flooding effects.

The team were measuring beach profile of Meulaboh after the coastal flooding.
The team were measuring beach profile of Meulaboh after the coastal flooding.

 

To response the coastal flooding and coastal erosion, a survey team led by Musa Al’ala conducted a preliminary survey to investigate the impacts. The survey was performed started from August 7-August 12, 2020. The team measured the new coastline, beach profiles and took some aerial images (by drone) to map the flooded area.

The team also conducted a courtesy visit to the Head of Public Works Department of West Aceh District, Dr. Kurdi. During the visit, the team reported the initiatives and mentioned that there will be another round of survey after this preliminary survey. TDMRC aims to contribute general perspectives of coastline management for Meulaboh in order to obtain a better concept of coastal protection management.

An aerial photo of Meulaboh coasts, captured on August 18, 2020. The dashed-yellow lines represent estimated coastal flooding limits after extreme waves in mid July 2020.
An aerial photo of Meulaboh coasts, captured on August 18, 2020. The dashed-yellow lines represent estimated coastal flooding limits after extreme waves in mid July 2020.

 

A comparison of two condition of coastline in Suak Ribee of Meulaboh. The left-hand side image is the condition capture in 2019 (from Google Earth) and the right hand side image is the condition captured by drone on August 8, 2020.
A comparison of two condition of coastline in Suak Ribee of Meulaboh. The left-hand side image is the condition capture in 2019 (from Google Earth) and the right hand side image is the condition captured by drone on August 8, 2020.

This activity is supported by Partnership Enhanced Engagement in Research (PEER) USAID under research grant “Incorporating climate change induced sea level rise information into coastal cities’ preparedness toward coastal hazards” (No. 5-395) coordinated by Dr. Syamsidik.