| Author | Pradhan, Udai Chandra |
| Call Number | AIT Thesis no.NR-89-02 |
| Subject(s) | Geography--Data processing
|
| Note | A thesis submitted in partial fulfillment of the requirements for
the degree of Master of Engineering, School of Environment, Resource and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. NR-89-02 |
| Abstract | The demand for irrigation water at different times of the
year is dependent upon the crops grown. In order that crop
selection decisions be objective and reproducible, agricultural
land capability should be taken into consideration.
The estimation of irrigation water requirements is a tedious
procedure when done manually, and the possibility of error is
great. Therefore, it is generally not feasible to explore the
effect of different cropping patterns on irrigation water
requirements.
Seeking to address these problems, this study demonstrates
the use pf raster-based Geographical Information Systems (GISs)
for agricultural land capability studies, and of Digital
Elevation Models (DEMs) for production of thematic maps from
point data. GIS techniques were also used to determine the
predominant physical characteristics affecting irrigation
requirements, within discrete irrigation boundaries, and for
determining groundwater depths and flood zones. A combination of
factual and assumed data was used in this study.
Also part of the study is the development of the computer
program WATDEM, written in 'C', for estimating the water
requirements at withdrawal points in an irrigation system, which
can be used to rapidly and accurately explore several operational
scenarios. |
| Year | 1989 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. NR-89-02 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Development and Sustainability (DDS) |
| Academic Program/FoS | Natural Resources Management (NRM) |
| Chairperson(s) | Lukens, J.E.;Paudyal, Guna N.; |
| Examination Committee(s) | Loof, Rainer; |
| Scholarship Donor(s) | Government of Finland; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |