Flood Susceptibility Mapping and Assessment in a Sub-Basin of the Kali River: (Record no. 697861)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02288nam a22001217a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | GEOPGD455 |
| Item number | 2023 Ananda Krishnan |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Ananda Krishnan |
| -- | Dr. Dhanil Dev S G (Guide) |
| 245 ## - TITLE STATEMENT | |
| Title | Flood Susceptibility Mapping and Assessment in a Sub-Basin of the Kali River: |
| Sub Title | An analytical hierarchy process-based multi-criteria decision-making approach for flood modelling |
| Statement of responsibility, etc | Ananda Krishnan |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication | Kariavattom, Department of Geology |
| Name of publisher | University of Kerala |
| Year of publication | 2023 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Floods are a recurrent natural disaster in Uttara Kannada, primarily due to the<br/>region's notably high annual rainfall. This study aims to create flood susceptibility maps<br/>for selected subbasins of Kali River, Karwar taluk of Uttara Kannada district by<br/>combining remote sensing data, GIS and Analytical Hierarchy Process (AHP) methods.<br/>Karwar and Kadra areas were identified as one of the districts most vulnerable to<br/>flooding in Uttara Kannada. The objective of generating these maps is to enhance<br/>awareness about flood risks. Various factors have been chosen as inputs, including<br/>elevation, slope, distance from the river, rainfall, flow accumulation, stream density, soil<br/>types, water ratio index, land use/land cover, topographic wetness index and stream<br/>power index. The final flood susceptibility maps are categorized into five zones ranging<br/>from very low to very high. The prevalence of floods in the study area can be attributed<br/>to factors such as increased silting, human-induced reduction in stream width,<br/>alterations in land cover and land-use patterns, gentle slopes, elevated soil moisture<br/>levels, diminished stream capacity and inadequate soil infiltration capabilities. The<br/>accuracy of the prepared map was assessed using the receiver operating characteristic<br/>(ROC) curve technique. The area under the ROC curve (AUC) values of 0.829 obtained<br/>for the AHP method are deemed acceptable and very good. This confirms the predictive<br/>capability of the generated map. The highly susceptible zone encompasses<br/>approximately 14.87% of the entire study area. This map offers valuable insights for<br/>urban planners and policymakers, aiding them in devising strategies to mitigate the<br/>impact of future flood hazards and minimize damages. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Dissertation |
| -- | Geology |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Book |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home Library | Current Location | Date acquired | Full call number | Accession Number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|
| Dept. of Geology | Dept. of Geology | 26/09/2023 | GEOPGD455 2023 Ananda Krishnan | GEOPG455 | 26/09/2023 | Book |