TY - JOUR
T1 - Influence of impervious cover determination method of upper Ciliwung watershed on flood warning system level change in Katulampa weir
AU - Farika, Niswatin
AU - Sutjiningsih, Dwita
AU - Anggraheni, Evi
N1 - Funding Information:
This work was supported by Universitas Indonesia through the PITTA 2018 under gr ant No.2422/UN2.R3.1/HKP.05.00/ 2018, which is greatly appreciated. The author would like to thank the anonymous reviewers for their valuable comments as well.
Publisher Copyright:
© The Authors, published by EDP Sciences, 2018.
PY - 2018/8/14
Y1 - 2018/8/14
N2 - The Katulampa Weir is a part of Jakarta Flood Early Warning System for the Ciliwung River. The measured water level fluctuation in the Katulampa Weir is affected by the physical condition of the Upper Ciliwung Watershed. In this study, the definition and relevance of the impervious cover determination method based on the Total Impervious Area (TIA) and Effective Impervious Area (EIA) in generating design flood discharge and its effect on the change of flood early warning level in Katulampa Weir will be evaluated. Identification of land use distribution is based on digitized process used combined GIS maps using visual interpretation of high resolution satellite images 2017. The flood analysis for both methods is applied to the same rain conditions. Evaluation of flood early warning level changes are based on flood discharge simulated results and rating curve discharge in the Katulampa Weir. The simulation by WinTR-20 gives that maximum discharge using TIA method is 150 m3/s and EIA method 139.5 m3/s. There is no significant difference between and both are classified as the same level of flood early warning system level, which is on stage 3. However, for large watersheds, it takes much effort to identify and digitize an effective impervious area.
AB - The Katulampa Weir is a part of Jakarta Flood Early Warning System for the Ciliwung River. The measured water level fluctuation in the Katulampa Weir is affected by the physical condition of the Upper Ciliwung Watershed. In this study, the definition and relevance of the impervious cover determination method based on the Total Impervious Area (TIA) and Effective Impervious Area (EIA) in generating design flood discharge and its effect on the change of flood early warning level in Katulampa Weir will be evaluated. Identification of land use distribution is based on digitized process used combined GIS maps using visual interpretation of high resolution satellite images 2017. The flood analysis for both methods is applied to the same rain conditions. Evaluation of flood early warning level changes are based on flood discharge simulated results and rating curve discharge in the Katulampa Weir. The simulation by WinTR-20 gives that maximum discharge using TIA method is 150 m3/s and EIA method 139.5 m3/s. There is no significant difference between and both are classified as the same level of flood early warning system level, which is on stage 3. However, for large watersheds, it takes much effort to identify and digitize an effective impervious area.
UR - http://www.scopus.com/inward/record.url?scp=85053210732&partnerID=8YFLogxK
U2 - 10.1051/matecconf/201819202053
DO - 10.1051/matecconf/201819202053
M3 - Conference article
AN - SCOPUS:85053210732
SN - 2261-236X
VL - 192
JO - MATEC Web of Conferences
JF - MATEC Web of Conferences
M1 - 02053
T2 - 4th International Conference on Engineering, Applied Sciences and Technology, ICEAST 2018
Y2 - 4 July 2018 through 7 July 2018
ER -