Development of isopluvial map using L-moment approach for Tehri-Garhwal Himalaya

Estimation of design rainfall intensity is crucial for design and planning of water resources engineering projects. The intent of the present study is to develop regional IDF curves for Tehri-Garhwal Himalayan region in India, wherein numbers of hydropower projects are in planning and execution stage. Self Recording Rain Gauge (SRRG) stations are generally not so frequent in the project locations. Under this situation, the engineers are forced to use regional intensity duration frequency (IDF) curves. Under this study, four stations viz. Tehri M.T.Lab, Mukhim, Pilkhi and Dhuttu were available with SRRG data. These data are used to develop the regional IDF curve for entire Tehri-Garwal region. After selection of the most intensive storms, return periods has been determined using regionalized L-moment method. After developing IDF curves for above four raingauge stations, Thiessen Ploygon method is applied to find out average IDF curve. To show the spatial variability, Isopluvial maps have been generated using ArcGIS and a relation equation has been developed.

[1]  Frederick C. Bell,et al.  GENERALIZED RAINFALL-DURATION-FREQUENCY RELATIONSHIPS , 1969 .

[2]  R. Clarke,et al.  An experimental comparison of methods for estimating rainfall intensity-duration-frequency relations from fragmentary records , 2007 .

[3]  D. Watson A refinement of inverse distance weighted interpolation , 1985 .

[4]  J. Hosking L‐Moments: Analysis and Estimation of Distributions Using Linear Combinations of Order Statistics , 1990 .

[5]  Murugesu Sivapalan,et al.  Modeling of rainfall time series and extremes using bounded random cascades and levy‐stable distributions , 2000 .

[6]  Rolf Weingartner,et al.  Rainfall amount and intensity in a rural catchment of the middle mountains, Nepal , 2006 .

[7]  Demetris Koutsoyiannis,et al.  A scaling model of a storm hyetograph , 1993 .

[8]  Daniele Veneziano,et al.  Multifractality and rainfall extremes: A review , 2006 .

[9]  立川 康人,et al.  Establishment of Intensity-Duration-Frequency Curves for Precipitation in the Monsoon Area of Vietnam , 2005 .

[10]  V. Ponce Engineering Hydrology: Principles and Practices , 1989 .

[11]  D. Watkins,et al.  Development of Regional Rainfall Intensity-Duration-Frequency Estimates for the State of Michigan , 2000 .

[12]  H. Madsen,et al.  Estimation of regional intensity-duration-frequency curves for extreme precipitation , 1998 .

[13]  U. C. Kothyari,et al.  Rainfall Intensity‐Duration‐Frequency Formula for India , 1992 .

[14]  Pao-Shan Yu,et al.  Regional rainfall intensity formulas based on scaling property of rainfall , 2004 .

[15]  D. F. Watson,et al.  A PRECISE METHOD FOR DETERMINING CONTOURED SURFACES , 1982 .

[16]  Floyd A. Huff,et al.  Time distribution of rainfall in heavy storms , 1967 .

[17]  E. Shaw,et al.  Rainfall depth-duration-frequency studies for Sri Lanka , 1978 .

[18]  Murugesu Sivapalan,et al.  Transformation of point rainfall to areal rainfall: Intensity-duration-frequency curves , 1998 .

[19]  David M. Hershfield,et al.  Rainfall frequency atlas of the United States for durations from 30 minutes to 24 hours and return periods from 1 to 100 years , 1961 .

[20]  R. Dahal,et al.  Representative Rainfall thresholds for landslides in the Nepal Himalaya , 2008 .

[21]  Demetris Koutsoyiannis,et al.  A mathematical framework for studying rainfall intensity-duration-frequency relationships , 1998 .

[22]  A. Langousis,et al.  Intensity‐duration‐frequency curves from scaling representations of rainfall , 2007 .

[23]  J. R. Wallis,et al.  Regional Frequency Analysis: An Approach Based on L-Moments , 1997 .

[24]  A. P. Krishna Snow and glacier cover assessment in the high mountains of Sikkim Himalaya , 2005 .

[25]  Merrill M. Bernard Formulas For Rainfall Intensities of Long Duration , 1932 .

[26]  M. Lang,et al.  Bayesian comparison of different rainfall depth–duration–frequency relationships , 2008 .

[27]  David L. Allen,et al.  Revision of the Rainfall-Intensity Duration Curves for the Commonwealth of Kentucky , 1999 .

[28]  Cheng‐lung Chen,et al.  Rainfall Intensity‐Duration‐Frequency Formulas , 1983 .