Flood Control Reduction Analysis using HEC-RAS due to Local Floods in Central Jakarta

The Megacity Jakarta has encountered serious floods associated with high intensity but a short-duration rainfall or low intensity with a long-duration rainfall. During the rainy season, on 4 Feb 2021, Jakarta was inundated as rainfall intensity increased. However, little is known about the meteorological factors that might contribute to this heavy rainfall. In this study, we used the 6-min X-Band Doppler radar, one-hour satellite and reanalysis data to understand the spatial distribution of rainfall and explore the background conditions that might influence the enhanced rainfall over Jakarta and Bekasi River. Other than previous studies, we found that over Jakarta, the areas receiving high rainfall are more widespread and further to the northeast ocean with an intensity of above 4.5 mm h-1. High intensity of rainfall starts to develop in the afternoon over the inland areas at around 08-10Z (3.00-5.00 PM). Background condition shows a strong westerly wind speed crossing over Java Island, and this might initiate the development of rainfall over the region.

Section: Introductionmentioning

confidence: 99%

Characteristic of rain rate associated with floods during the 2021 rainy season around Jakarta and Bekasi River

Lestari¹,

Sapan²,

Sulistyowati³

et al. 2022

Architechnopreneurship: instrument calibration

Wijaksono

Sasmoko

Indrianti

et al. 2021

Jakarta as the capital city of Indonesia has the potential to be prone to flooding duringthe rainy season. Geographical conditions, dense settlements, drainage systems and river flow conditions are various causes that require complex handling. Therefore, it needs synergy from various professions and expertise to be able to overcome problems that have social and economic impacts. Architechnopreneurship is a multidisciplinary concept developed as an effort to provide solutions for communities to survive in areas that are potentially affected by flooding. An architect’s work that has a content of beauty provides education for the public to take advantage of housing as a place of refuge equipped with technology as a warning system as well as providing insights to bring the value of entrepreneurship to life. To achieve this goal, an instrument will be made that will be distributed to the wider community to assess this architechnopreneurship concept building sketch. This study aims to describe the results of the architechnopreneurship instrument calibration. The research method used is the Neuroresearch method, a mixed method with an emphasis on the exploratory and explanatory research stages. The result of this research is an architechnopreneurship standard instrument that can be used to measure the architechnopreneurship concept building sketch.

The Jakarta society’s perspectives on Architechnopreneurship design

Wijaksono

Sasmoko

Indrianti

et al. 2021

Building architecture in urban areas is very important, especially for settlements that are at risk of flooding. Architechnopreneurship is a residential architectural design concept that can provide comfort even in a flooded area, has a concept that utilizes technology, provides insight into entrepreneurial values and provides education for residents in mitigating flood risk. This study aims to obtain an overview of the Jakarta society’s perspectives on architechnopreneurship design. The research method used is the Neuroresearch method, a mixed method which has three stages of research, namely exploratory, explanatory, and confirmatory research. The results showed that the Architechnopreneur building design concept presented was still not in accordance with the views of the people of Jakarta significantly at α <0.05. These results provide input for changes and improvements to architechnopreneurship design in accordance with community expectations.