ANALISA HIDROLOGI PERMUKAAN DALAM HUBUNGANNYA DENGAN DEBIT BANJIR DAS LUKULO HULU DENGAN MENGGUNAKAN DATA PENGINDERAAN JAUH

Puguh D Raharjo, Sueno Winduhutomo, Kristiawan Widayanto, Eko Puswanto

Abstract

Lukulo upstream watershed represents a watershed in Karangsambung Geological Nature Preserve, this
basin is located administratively in Central Java Province with Area is 281,394 km2. In rainy season the
river discharge of upstream lukulo steep increase, while in the dry season is very small. The purpose of this
study was to analyze the surface hydrology in relation to the flood discharge in the Lukulo upstream
watershed using remote sensing data. Data of SRTM image was processed DEM hydro-processing in the
form of flow determination and network catchment extraction produced 16 units of sub-drainage. Results of
coeffitient runoff value estimates using Bransby and Williams method is 58% with flood discharge was
estimated using the rational method at 562, 098 m3/second which had difference with the actual flood
discharge at 1, 662 m3. Value of flood discharge in the Lukulo upstream watershed is relatively large and
can cause flooding /overflowing of rivers in the surrounding area.

Keywords

Lukulo upstream watershed, flood discharge, coefficient runoff, hydrologic modeling

Full Text:

PDF

Refbacks

  • There are currently no refbacks.