Blar i NIBIO Brage på forfatter "Muttil, Nitin"
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Analysis of Meandering River Morphodynamics Using Satellite Remote Sensing Data—An Application in the Lower Deduru Oya (River), Sri Lanka
Basnayaka, Vindhya; Samarasinghe, Jayanga T.; Gunathilake, Miyuru; Muttil, Nitin; Hettiarachchi, Dileepa C.; Abeynayaka, Amila; Rathnayake, Upaka (Peer reviewed; Journal article, 2022-07-16)River meandering and anabranching have become major problems in many large rivers that carry significant amounts of sediment worldwide. The morphodynamics of these rivers are complex due to the temporal variation of flows. ... -
The Assessment of Climate Change Impacts and Land-use Changes on Flood Characteristics: The Case Study of the Kelani River Basin, Sri Lanka
Samarasinghe, Jayanga T.; Makumbura, Randika K.; Wickramarachchi, Charuni; Sirisena, Jeewanthi; Gunathilake, Miyuru; Muttil, Nitin; Teo, Fang Yenn; Rathnayake, Upaka (Peer reviewed; Journal article, 2022-10-09)Understanding the changes in climate and land use/land cover (LULC) over time is important for developing policies for minimizing the socio-economic impacts of riverine floods. The present study evaluates the influence of ... -
Comparison of Calibration Approaches of the Soil and Water Assessment Tool (SWAT) Model in a Tropical Watershed
Makumbura, Randika K.; Gunathilake, Miyuru; Samarasinghe, Jayanga T.; Confesor, Remegio; Muttil, Nitin; Rathnayake, Upaka (Peer reviewed; Journal article, 2022-10-18)Hydrologic models are indispensable tools for water resource planning and management. Accurate model predictions are critical for better water resource development and management decisions. Single-site model calibration ... -
Evaluation of the Impact of Land Use Changes on Soil Erosion in the Tropical Maha Oya River Basin, Sri Lanka
Palliyaguru, Chathura; Basnayake, Vindhya; Makumbura, Randika K.; Gunathilake, Miyuru; Muttil, Nitin; Wimalasiri, Eranga M.; Rathnayake, Upaka (Peer reviewed; Journal article, 2022-12-29)Soil degradation is a serious environmental issue in many regions of the world, and Sri Lanka is not an exception. Maha Oya River Basin (MORB) is one of the major river basins in tropical Sri Lanka, which suffers from ... -
Monitoring the Meteorological and Hydrological Droughts in the Largest River Basin (Mahaweli River) in Sri Lanka
Senatilleke, Udara; Sirisena, Jeewanthi; Gunathilake, Miyuru; Muttil, Nitin; Rathnayake, Upaka (Peer reviewed; Journal article, 2023-03-02)This study assessed the meteorological and hydrological droughts and their relationship over 30 years from 1985 to 2015 in the largest river basin (Mahaweli River Basin (MRB)) in Sri Lanka. Data from 14 rainfall, 5 ... -
Performances of Holiday Climate Index (HCI) for Urban and Beach Destinations in Sri Lanka under Changing Climate
Samarasinghe, Jayanga T.; Wickramarachchi, Charuni P.; Makumbura, Randika K.; Meddage, Pasindu; Gunathilake, Miyuru; Muttil, Nitin; Rathnayake, Upaka (Peer reviewed; Journal article, 2023-02-21)Climate change has had a significant impact on the tourism industry in many countries, leading to changes in policies and adaptations to attract more visitors. However, there are few studies on the effects of climate change ... -
Planform Changes in the Lower Mahaweli River, Sri Lanka Using Landsat Satellite Data
Basnayaka, Vindhya; Samarasinghe, Jayanga T.; Gunathilake, Miyuru; Muttil, Nitin; Rathnayake, Upaka (Peer reviewed; Journal article, 2022-10-03)Major development projects along rivers, like reservoirs and other hydraulic structures, have changed not only river discharges but also sediment transport. Thus, changes in river planforms can be observed in such rivers. ...