Evaporation Modelling in Data Scarce Tropical Region of the Eastern Arc Mountain Catchments of Tanzania

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dc.creatorZemadim, Birhanu
dc.creatorMtalo, Felix W.
dc.creatorMkhandi, Simon
dc.creatorKachroo, Raj
dc.creatorMcCartney, Matthew
dc.date2016-03-23T07:50:32Z
dc.date2016-03-23T07:50:32Z
dc.date2011
dc.date.accessioned2018-03-27T08:40:40Z
dc.date.available2018-03-27T08:40:40Z
dc.descriptionThis paper focuses on developing methods for both potential and actual evapotranspiration (ET) models for the data scarce conditions of the Eastern Arc Mountains catchment of Tanzania. For reliable estimation of the components of the hydrological cycle and plant water uptake, potential ET estimates are required, and for catchment water balance actual ET estimates are needed. These potential and actual ET estimates, however, depend on reliable and good quality data records. The study catchments in this work are characterised by general lack of reliable meteorological (MET) data, though good records of rainfall, flow and pan evaporation data do exist in a few places. In the study reported here the Penman-Monteith (P-M) estimates were found to be closer to the pan evaporation model in areas where reliable records of pan data exist. By comparison, estimates derived solely from temperature (i.e. the Standard Thornthwaite method), were a lot lower. Assuming the P-M estimates to be reliable, new temperature based regional equations were developed using data obtained from six climate stations. The study also presents simpler methods for estimating actual ET from catchments.
dc.identifierZemadim, B., Mtalo, F., Mkhandi, S., Kachroo, R. and McCartney, M., 2011. Evaporation Modelling in Data Scarce Tropical Region of the Eastern Arc Mountain Catchments of Tanzania. Nile Basin Water Science & Engineering Journal, 4(1).
dc.identifierhttp://hdl.handle.net/123456789/1233
dc.identifier.urihttp://hdl.handle.net/123456789/3046
dc.languageen
dc.publisherCollege of Engineering and Technology, University of Dar es Salaam
dc.subjectEvaporation Modelling
dc.subjectEastern Arc Mountains
dc.subjectStandard Thornthwaite Model
dc.subjectPenman Monteith Model
dc.subjectTurc and Pike’s Model
dc.subjectWater Budget
dc.titleEvaporation Modelling in Data Scarce Tropical Region of the Eastern Arc Mountain Catchments of Tanzania
dc.typeJournal Article, Peer Reviewed

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