03619nas a2200421 a 4500 20260817163526.0 191202s2017 th u m rtt 000 a eng d .b12296764 AIT Caps. Proj. no.CIE-17-35 Gunathilaka, Aruma K.T.N. An assessment of climate change impacts on irrigation water requirements in the Thalangama Irrigation project in Sri Lanka Pathum Thani : Asian Institute of Technology, 2017 42 leaves : ill. + 1 online resource Caps. Proj. ; no. CIE-17-35 A capstone project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Engineering Civil and Infrastructure Engineering, School of Engineering and Technology Capstone Project (B.Sc.)-Asian Institute of Technology, 2017 Climate change is now considered as real. It is affecting various sectors, including agriculture. Changes in crop water requirements (CWR) and hence irrigation water requirement (IR) is the primary pathways by which the climate change impacts the agriculture sector. Climate changes impacts are more sever in the tropical countries like Sri Lanka. Approximately 72% of paddy produced in Sri Lanka may alter substantially by climate changes. The Kelani River Basin is one of the most vulnerable one for floods in Sri Lanka. It results in losses of many paddy productions within a year. This study aims o understand how projected future climate is likely to impact on IR with a case of Thalangama Irrigation Project in the Kelani River Basin, Sri Lanka. This study used CROPWAT8.0 model to estimate CWR and IR under current and future conditions. Meteorological and other data were collected from local source. Future rainfall and temperature were taken from two regional circulation models (RCMs) under two scenarios (RCP4.5 and RCP8.5). Mid-future or the 2050s was considered as the future time of interest. Results showed that both temperature and precipitation is projected to increase. As a con sequence, CWR in the mid-future is projected to increase by 2.1% and 3.4% from baseline (2006-2015) under RCP4.5 and RCP8.5 scenarios, respectively. With the increase in effective rainfall, IR is projected to decrease by 38.8% and 12.9% in the mid-future under the two scenarios under consideration. Irrigation Water requirements Sri Lanka Thalangama Irrigation Climatic Changes Sri Lanka Thalangama Irrigation Pandey, Vishnu Prasad, Chairperson Shrestha, Sangam, Examination Committee Duc Hoang Nguyen, Examination committee Asian Institute of Technology. Caps. Proj. ; no. CIE-17-35 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B14059 .b12296764 mnait m 240411 0 191203 m a m 3 mnait mnarc mnarc 40 61 20 Barcode : 30050120394720 CREATED : 2019-11-03 RECORD # : i13155969 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : - CREATED : 2019-11-03 RECORD # : i13155970 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120951867 CREATED : 2019-03-12 RECORD # : i13236982 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 9015 9015 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Caps. Proj. no.CIE-17-35 30050120394720 2026-08-17 16:35:26 1 2026-08-17 40 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Caps. Proj. no.CIE-17-35 2026-08-17 16:35:26 2026-08-17 61 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Caps. Proj. no.CIE-17-35 30050120951867 2026-08-17 16:35:26 1 2026-08-17 20