Impact of climate change on water resources of Kurumali river basin (Record no. 155155)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03153nam a22001697a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 551.6 |
| Item number | ARY/IM |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Arya A R |
| 245 ## - TITLE STATEMENT | |
| Title | Impact of climate change on water resources of Kurumali river basin |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Vellanikkara |
| Name of publisher, distributor, etc | Academy of climate change education and research |
| Date of publication, distribution, etc | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 101 pages |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | MSc |
| 520 ## - SUMMARY, ETC. | |
| Abstract | Soil, water and air are the primary requirements for the existence of life on earth. Efficient distribution and sustainable use of water resources has to be managed on watershed basis. A watershed is a geographical area which receives water through precipitation and drains out to a common outlet. Watershed scale<br/>hydrological studies consider the weather conditions and physiographic features of the watershed as input factors. Changes in any of these parameter definitely will<br/>influence the watershed hydrology. Climate models are the most important tool for making climate predictions on temporal and spatial scales and making projections of future climate for the<br/>coming century. In the present study, Kurumali sub basin of Karuvannur river was<br/>selected as the study region. Future projected climate data was obtained from MarkSim DSSAT weather file generator for the future 30 years (2020-2050) using MIROC-ESM general circulation model in four RCPs(2.6,4.5,6.0 and 8.5).Present<br/>annual rainfall for Kurumali sub basin is 2767.3mm. The model predicted annual<br/>rainfall for 2050 are 3179.8mm, 3387.2mm, 3397.4mm and 3344.9mm in RCP 2.6, RCP 4.5, RCP 6.0 and RCP 8.5 respectively. This data was used as weather input<br/>for predicting the future watershed processes and water resource availability using<br/>SWAT model. The model predicted an increase in annual rainfall and a decrease in<br/>duration of individual storms. An increase in the amount of SW monsoon rainfall and a decrease in the amount of NE monsoon was predicted. Soil and Water Assessment Tool (SWAT) is a widely accepted model for the river flow calculation, sediment transport estimation and nutrient availability<br/>computations. SWAT wasused for the water balance computation. Surface runoff<br/>was found to increase from 254.9mm to 885.3mm in RCP 2.6; 852.5mm in<br/>RCP4.5; 885.3mm in RCP 6.0 and 918.1mm in RCP 8.5. Lateral flow also showed<br/>an increase from 288.2mm to 459.1mm RCP 2.6; 491.9 mm in RCP 4.5; 459.06mm<br/>in RCP 6.0 and 459.06mm in RCP 8.5.The groundwater flow was found to reduce from 1622.2mm to 1310.9mm in RCP 2.6; 1532.5mm in RCP 4.5; 1574.4mm in RCP 6.0 and 1543mm in RCP 8.5. Predicted high intensity short duration rainfall will<br/>enhancerunoff.Evaporation losses were also found to increase and this in turn will<br/>reduce the water availability of the Kurumali sub basin.The reduced aquifer recharge consequent to high runoff and evaporation losses will disturb the demand supply balance of water within the watershed. Adoption of suitable soil and water<br/>conservation measures are recommended to overcome the water scarcity expected in future years. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Climate change adaptation |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sathian K K (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://krishikosh.egranth.ac.in/handle/1/5810138818 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Item type | Theses |
| Not for loan | Collection code | Home library | Current library | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Not For Loan | Reference Book | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 15/04/2017 | 551.6 ARY/IM | 173899 | 15/04/2017 | Theses |