DOI:10.29111/ijlrst ISRA Impact Factor:3.35
Research Paper Open Access
International Journal of Latest Research in Science and Technology Vol.3 Issue 2, pp 55-60,Year 2014
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Received : 08 March 2014; Accepted : 18 March 2014 ; Published : 30 April 2014
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Many watershed areas have no equipments of rain gauges so that difficulty to comprehend hydroclimatological processs is emerging at the area particularly at area with high elevation. For the purpose, it needs to estimate the relationship between rainfall and elevation. The research on the relationship between rainfall and elevation in Cisangkuy Watershed Bandung Regency has been conducted to be used in estimation of rainfall at certain elevation for the agenda of water resources management. Spatial monthly rainfall from WorldClim for 50 years and Digital Elevation Model (DEM) from CGIAR-CSI have been studied and analyzed in Cisangkuy watershed to understand the relationship between rainfall and elevation. Study was based on the derivation of rainfall profile to elevation from 650 m mean sea level (msl) which is downstream Cisangkuy river till 1530 m msl which is upstream at the Cileunca lake by using GIS (CD line). Regression analysis showed strong linear relationships between monthly rainfall and elevation which coefficient of correlation is 89%. The increase of monthly rainfall with elevation is averaged 11.62 mm/ 100 m increase of elevation on CD line profile, except in August shows the increase stopping at 1156 m then decrease slowly at the rate 9.5 mm/100 m. Wet season which is represented by December, January and February show the increase with the elevation is 17.7 mm while dry season which is represented by June, July, August show the increase with the elevation is 5.9 mm/100 m elevation increased. Using the regression analysis of the relationships between monthly rainfall and elevation, one get the simple model but effective to approximate the rainfall in certain elevation at watershed.
Copyright © 2014 Dadang Subarna et al. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Dadang Subarna, M. Yanuar J. Purwanto, Kukuh Murtilaksono, Wiweka , " The Relationship Between Monthly Rainfall And Elevation In The Cisangkuy Watershed Bandung Regency ", International Journal of Latest Research in Science and Technology . Vol. 3, Issue 2, pp 55-60 , 2014
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