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| Content Provider | Springer Nature Link |
|---|---|
| Author | Rawat, Pradeep K. Tiwari, Prakash C. Pant, Charu C. |
| Copyright Year | 2012 |
| Abstract | The main objective of the study was to assess the integrated multiple hydrological hazards and their environmental and socio-economic risks in Himalaya through geographical information system (GIS) and database management system (DBMS). The Dabka Watershed constitutes a part of the Kosi Basin in the Kumaun Lesser Himalaya has been selected for the case illustration. The Dabka DBMS is constituted of three GIS modules, that is, geo-informatics, hydro-informatics and hazard-informatics. Through the integration and superimposing of these modules prepared Hydrological Hazard Index to identify the level of vulnerability for existing hydrological hazards and their socio-economic and environmental risks. The results suggested that geo-environmentally most stressed barren land areas have high rate of runoff, flood magnitude, erosion sediment load and denudation during rainy season particularly in the month of August (i.e., respectively, 84.56 l/s/km$^{2}$, 871.80 l/s/km$^{2}$, 78.60 t/km$^{2}$ and 1.21 mm/year), which accelerates high hazards and their socio-economic and environmental risks, whereas geo-environmentally least stressed dense forest areas experience low rate of stream runoff, flood magnitude, erosion sediment load and denudation in the same season and month (i.e., respectively, 20.67 l/s/km$^{2}$, 58.12 l/s/km$^{2}$, 19.50 t/km$^{2}$ and 0.20 mm/year) comparatively have low hazards and their socio-economic and environmental risks. The other frazzled geo-environment that also found highly vulnerable for natural hazards and their risks is agricultural land due to high stream runoff, flood magnitude, erosion sediment load and denudation rates (i.e., respectively, 53.15 l/s/km$^{2}$, 217.95 l/s/km$^{2}$, 90.00 t/km$^{2}$ and .92 mm/year). This makes it necessary to take up an integrated and comprehensive sustainable land use policy for the entire Himalaya region based on the scientific interpretation of the crucial linkages between land use and hydrological hazards, that is, floods, erosion, landslides during rainy season and drought due to dry-up of natural springs and streams during summer season. The study would help the village, district and state development authority to formulate decision support system for alternate planning and management for the Himalaya region. |
| Starting Page | 1233 |
| Ending Page | 1260 |
| Page Count | 28 |
| File Format | |
| ISSN | 0921030X |
| Journal | Natural Hazards |
| Volume Number | 62 |
| Issue Number | 3 |
| e-ISSN | 15730840 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2012-03-27 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Integrated hydrological hazards Database management system Geo-informatics Hydro-informatics Hazard-informatics Civil Engineering Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Hydrogeology Natural Hazards Environmental Management |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science Water Science and Technology |
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