| Author | Kumar, Alok |
| Call Number | AIT Thesis no.WM-96-20 |
| Subject(s) | Runoff
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. WM-96-20 |
| Abstract | A major portion of the Semi-Arid area in India have the Vertie Inceptisols soils. These
soils are located on lands exceeding 2% slope, shallow, and prone to soil erosion. The crop
productivity in these soils is affected by the less amount of soil water available to the plant,
and because of the severe loss of soil during the heavy storms. The present study has been
undertaken with a view to deve°Iop a model for the Vertie Inceptisol soils to predict the runoff
which is relatively simple in concept and with a reasonable data demand.
The developed model integrates the processes of evapotranspiration, infiltration, and
soil moisture redistribution and predicts seasonal runoff, soil moisture storage,
evapotranspiration, and deep percolation on a daily basis. In this model the retention parameter
is calculated based on the soil moisture accounting procedure, and the evapotranspiration is
estimated on the basis of time delay factor. The model is validated against the measured data
from the Vertie Inceptisol watershed. The predicted runoff from the model matches well to the
runoff measured from the watershed. Another available model PERFECT is also evaluated
against the same set of data and the model is found to over predict the runoff.
The model developed in this study is simple and has less data requirement, hence finds
a possible wide range of application besides the prediction of runoff. It can be used for
estimating natural recharge to ground· water, determining effective rainfall, evaluating the
impact of land use changes on the water yield of a watershed, and for irrigation scheduling. |
| Year | 1996 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. WM-96-20 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Murty, V.V.N.; |
| Examination Committee(s) | Loof, Rainer;Kubo, N.; |
| Scholarship Donor(s) | Royal Government of Netherlands ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1996 |