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A climatic water balance model ‘WatBal’ for bioclimatic classification and agro-climatic analysis

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Title A climatic water balance model ‘WatBal’ for bioclimatic classification and agro-climatic analysis
Not Available
 
Creator S. Srinivas, C.V. Srinivas, K.M. Nair, L.G.K. Naidu, Dipak Sarkar and S.K. Singh
 
Subject Water balance, Growing period, Bio-climate
 
Description Not Available
A computer software (WatBal) was developed for estimating climatic water balance components and length
of growing period (LGP) for individual stations using overhead climatic data and soil water retention. The
program computes various components of water budget (water surplus/deficit, humidity/aridity/moisture
indices, bio-climatic type) following the standard methods considering precipitation (P), potential
evapotranspiration (PET), and available water holding capacity (AWC) of soils as inputs at either monthly
or weekly time steps. The essential inputs for the program are rainfall and evapotranspiration. Mean rainfall
is derived from climatic normals and the evapotranspiration is estimated following Penman-Monteith
relation based on inputs of normal temperature, humidity, radiation parameters specific to a location. The
water-balance program tested for many stations with diverse soil, physiography and climate conditions
over India and was found to provide good results. Spatial interpolation techniques in Geographical
Information System (GIS) have been adopted for interpretation of geographical variation of the various
water budget components. The WatBal software was used in many agriculture research areas in India. A
few applications viz., delineation of bio-climatic types, crop growing period, delineation of agro-ecological
regions/sub-regions, agricultural drought classification are discussed.
Not Available
 
Date 2020-05-13T14:56:50Z
2020-05-13T14:56:50Z
2016-01-01
 
Type Article
 
Identifier S. Srinivas et. al.
0971–765X
http://krishi.icar.gov.in/jspui/handle/123456789/35611
 
Language English
 
Relation Not Available;
 
Publisher EM International