Hydrological similarity approach and rainfall satellite utilization for mini hydro power dam basic design (case study on the ungauged catchment at West Borneo, Indonesia)

4th International Symposium on LAPAN-IPB Satellite for Food Security and Environmental Monitoring

农业科学;生态环境科学

Prakoso, W.G.^1 ; Murtilaksono, K.^2 ; Tarigan, S.D.^2 ; Purwanto, Y.J.^3

Graduate School Bogor Agricultural University, Jl. Raya Darmaga, Gedung Sekolah Pascasarjana IPB, Kampus IPB Darmaga Bogor, Jawa Barat

16680, Indonesia^1

Watershed Management, Departement of Soil Science and Land Resources, Kampus IPB Darmaga, Jl. Meranti, Bogor

16680, Indonesia^2

Departement of Civil and Environmental Engineering, Gedung FATETA, Jl. Lingkar Akademik, Jawa Barat

16680, Indonesia^3

关键词: Flow duration curve;    Global climate model;    Hydrological model calibrations;    Hydrological modelling;    Regionalization approaches;    Satellite platforms;    Similarity analysis;    Watershed characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/149/1/012039/pdf
DOI  :  10.1088/1755-1315/149/1/012039

来源: IOP

【 摘 要 】

An approach on flow duration and flood design estimation on the ungauged catchment with no rainfall and discharge data availability was been being develop with hydrological modelling including rainfall run off model implemented with watershed characteristic dataset. Near real time Rainfall data from multi satellite platform e.g. TRMM can be utilized for regionalization approach on the ungauged catchment. Watershed hydrologically similarity analysis were conducted including all of the major watershed in Borneo which was predicted to be similar with the Nanga Raun Watershed. It was found that a satisfactory hydrological model calibration could be achieved using catchment weighted time series of TRMM daily rainfall data, performed on nearby catchment deemed to be sufficiently similar to Nanga Raun catchment in hydrological terms. Based on this calibration, rainfall runoff parameters were then transferred to a model. Relatively reliable flow duration curve and extreme discharge value estimation were produced with reasonable several limitation. Further approach may be performed in order to deal with the primary limitations inherent in the hydrological and statistical analysis, especially to give prolongation to the availability of the rainfall and climate data with some novel approach like downscaling of global climate model.