Statistical modeling of wet and dry spell frequencies over North-East India
Journal Title: Journal of Applied and Natural Science - Year 2010, Vol 2, Issue 1
Abstract
In this paper an attempt has been made to develop a discrete precipitation model for the daily series of precipitation occurrences over North East India. The point of approach is to model the duration of consecutive dry and wet days i.e. spell, instead of individual wet and dry days. Various distributions viz. uniform, geometric, logarithmic, negative binomial, Poisson and Markov chain of order one and two, Eggenberger-Polya distribution have been fitted to describe the wet and dry spell frequencies of occurrences. The models are fitted to the observed data of seven stations namely Imphal, Mohanbari, Guwahati, Cherrapunji, Silcoorie, North Bank and Tocklai (Jorhat) of North-East India with pronounced attention to summer monsoon season. The goodness of fit of the proposed model has been tested using Kolmogorov-Smirnov test. It is observed that Eggenberger-Polya distribution fairly fits wet and dry spell frequencies and can be used in the future for an estimation of the wet and dry spells in the area under study.
Authors and Affiliations
S. Deka, M. Borah
Keywords
Related Articles
- EP ID EP115683
- DOI 10.31018/jans.v2i1.93
- Views 81
- Downloads 0
Ground water quality assessment for irrigation in Palwal block of Palwal district, Haryana, India
The present study examined the quality of groundwater for agriculture purpose in a 49785 ha region comprising Palwal block of Palwal district of Haryana state by focusing on spatial variability of electrical conductivity...
Combining ability and heterosis for grain yield, fodder yield and other agronomic traits in sorghum [Sorghum bicolor (L.) Moench]
Forty five hybrids derived from a diallel mating design of ten parents and one standard check PUSA CHARI-121 were evaluated for general and specific combining ability effects and standard heterosis for grain yield/plant,...
Study on eggs of Japanese quail (Coturnix coturnix japonica) during incubation in the controlled laboratory conditions
Study on newly laid eggs of Japanese quail Coturnix coturnix japonica was undertaken for a period of 18 days on incubation in controlled laboratory conditions. The aim of the study was to evaluate the changes in egg weig...
Temporal dynamics of sucking pest and field response of promising insecticidal molecules in okra
To investigate the response due to application of newer insecticide on sucking pest in okra, a trial was designed at field level for three consecutive years from 2011-12 to 2013-14 in kharif season. Moreover, impacts of...
Effect of different substrates and casing materials on growth and yield of Calocybe indica (P&C) in North Bengal, India
Cultivation of Calocybe indica was undertaken with locally available substrates viz. paddy straw, maize stalk waste, bamboo leaves and young coconut fibre alone and various combinations with paddy straw + maize stalk (1:...