Records |
Author |
Simon Mulwa Mutie; Banci Mati; Hussein Gadain; Patrick Home |
Title |
Land cover change effects on flow regime of mara river |
Type |
Conference Article |
Year |
2005 |
Publication |
Proceedings of ISCRAM 2005 – 2nd International Conference on Information Systems for Crisis Response and Management |
Abbreviated Journal |
ISCRAM 2005 |
Volume |
|
Issue |
|
Pages |
237-246 |
Keywords |
Computer software; Deforestation; Hydrology; Information systems; Reforestation; Forest; Kenya; Land use/land cover; Landsat; River basins; Savannah; Tanzania; Rivers |
Abstract |
The transboundary Mara River across Kenya and Tanzania and draining in to Lake Victoria has undergone major anthropogenic changes affecting its land cover over the past 50 years. However, these changes have not been quantified in a manner to allow wider scale understanding of the causative factors, their effects and show hot spots that required immediate intervention. To address these issues, a study of the land use/land cover change was done based on interpretation of digital LANDSAT TM and ETM images of 1986 and 2000 respectively with Idrisi Kilimanjaro software. In a separate addition, analyses of hydrological factors was done which involved comparing monthly mean flow hydrographs to assess changes in flow characteristics of the Mara river immediately after the basin forests. The results obtained showed 2.3 % deforestation, 0.7% reforestation, 20.9% of the basin was opened up for agriculture and 7.5% changed to wetlands. Hydrological investigations showed that river flow regimes have changed, with sharp increases in peaks, attenuation of the river hydrographs and reduction in base flows, factors that could not be linked to changes in rainfall amounts and characteristics but related to modifications of the land surface induced by artificial influences of the man in the basin. |
Address |
Jomo Kenyatta University of Agriculture and Technology, P.O Box 00400, 11294 Nairobi, Kenya; Jomo Kenyatta University of Agriculture and Technology, P.O Box 00200, 62000 Nairobi, Kenya; United states Geological Survey, P.O Box 00800, 66613 Nairobi, Kenya |
Corporate Author |
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Thesis |
|
Publisher |
Royal Flemish Academy of Belgium |
Place of Publication |
Brussels |
Editor |
B. Van de Walle, B. Carle |
Language |
English |
Summary Language |
English |
Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
2411-3387 |
ISBN |
9076971099 |
Medium |
|
Track |
GEOGRAPHIC INFORMATION SYSTEMS |
Expedition |
|
Conference |
2nd International ISCRAM Conference on Information Systems for Crisis Response and Management |
Notes |
|
Approved |
no |
Call Number |
|
Serial |
802 |
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Author |
Valeriy Klenov |
Title |
The moving digital earth (MDE) for monitoring of forthcoming disasters |
Type |
Conference Article |
Year |
2006 |
Publication |
Proceedings of ISCRAM 2006 – 3rd International Conference on Information Systems for Crisis Response and Management |
Abbreviated Journal |
ISCRAM 2006 |
Volume |
|
Issue |
|
Pages |
17-23 |
Keywords |
Information systems; Management information systems; Systems analysis; Debris-flows; Digital Earth; Earth systems; External systems; Hazardous process; High speed computing; River basins; Virtual systems; Disasters |
Abstract |
Disasters in Earth Nature Systems (in river basins and in coastal zone) are generated the systems by influence under pressure and impacts of external systems. The water related disasters include the most of hazardous processes on land and sea as follows: floods, avalanches, droughts, landslides, debris-flows, erosion, abrasion, and others. The external systems are not yet able to let know about the Time, Place, and Power of future disasters all together. However, Earth systems allow doing it because of their property to delay on exterior power. The proposed and discussed is the Moving Digital Earth (MDE) technology for outstripping estimation of the Earth Nature Systems response on exterior pressure and impacts. The MDE uses only the knowledge of current System's state and methods of the Digital Systems Analysis (DSA) by high-speed computing. |
Address |
Education Centre 654, Canada |
Corporate Author |
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Thesis |
|
Publisher |
Royal Flemish Academy of Belgium |
Place of Publication |
Newark, NJ |
Editor |
B. Van de Walle, M. Turoff |
Language |
English |
Summary Language |
English |
Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
|
ISSN |
2411-3387 |
ISBN |
9090206019; 9789090206011 |
Medium |
|
Track |
Position and Research in Progress Papers |
Expedition |
|
Conference |
3rd International ISCRAM Conference on Information Systems for Crisis Response and Management |
Notes |
|
Approved |
no |
Call Number |
|
Serial |
656 |
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