ACADSTAFF UGM

CREATION
Title : Hydrograph monitoring and analysis for sustainable karst water management in Nyadeng Spring, East Borneo
Author :

Dr. Margaretha Widyastuti, M.T. (1) Hendy Fatchurohman, S.Si., M.Sc. (2) WILDA AULIA FATHONI (3) ARIEF A. HAKIM (4) Prof. Dr. Eko Haryono, M.Si. (5)
Date : 0 2018
Keyword : Hydrograph Hydrograph
Abstract : Karst aquifer stores abundant water resources within its matrix, conduits, and intergranular pores. Karst aquifer plays an important role in providing water supply, especially in the areas nearby that commonly dry and lack of surface water resources. Karst spring hydrograph analysis is very fundamental step to assess and determines the condition of the catchment area in karst terrain. Recession curve is believed to be the most stable part in single flood hydrograph that represents the aquifer characteristics. Nyadeng is one of the most significant karst springs that located in Merabu Karst Area, East Borneo. Villagers in Merabu highly depend on Nyadeng Spring for fulfilled their freshwater need. Hydrograph monitoring has been initiated for one year in Nyadeng Spring as a preliminary action for karst water management in Merabu. Water level data series obtained using automatic water level data logger and then correlated with manual discharge measurement to generate stage-discharge rating curve. The stage-discharge rating curve formula for Nyadeng Spring calculated as y = 0,0102e5,8547x with r2 value =0.8759. From the combination of several single flood events, Master Recession Curve (MRC) was generated to determine flow regime as the main consideration for karstification degree calculation. From the MRC result, flow regimes formula determined as Qt= 3.2-0.001t + 1.2(1-0.012t)+1.6(1-0.035t) indicated that one sub-regime with laminar flow and two sub-regimes with turbulent flow existed. From the MRC formula, the degree of karstification in Nyadeng Spring classified at seventh scale (developed karstification of the aquifer) based on Malik’s karstification degree (2012). The degree of karstification in Nyadeng Spring indicates that the aquifer formed by large conduit channels, fissures, and macro fissures which are able to provide significant water sources that can be utilized for multi purposes. Therefore, it is concluded that spring hydrograph monitoring provide essential information in order to establish a careful water resources management actions.
Group of Knowledge :
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 ICERM_Full.pdf
Document Type : [PAK] Full Dokumen
[PAK] Full Dokumen View
2 Hydrograph monitoring and analysis for sustainable karst water management in Nyadeng Spring, East Borneo.pdf
Document Type : Cek Similarity
Cek Similarity View
3 2017-1 Sertifikat ICERM.pdf
Document Type : Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian) View
4 Surat Keterangan Publikasi Mhs-M_Widyastuti-2018 .pdf
Document Type : Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian) View