Papers by Chusit Apirumanekul
AGU Fall Meeting Abstracts, Dec 1, 2017
The Chindwin River is the main tributary of Ayeyarwady River. Hundreds of villagers and farmers h... more The Chindwin River is the main tributary of Ayeyarwady River. Hundreds of villagers and farmers have lost their houses and farmlands when the riverbanks collapse due to the heavy stream flows in the rainy season (Jun-Sep) along these two rivers. In these two basins, navigation is an important transportation. During droughts, the emerging sandbanks become an obstacle for boats. River bank erosion and deposition influence the natural sediment balance of Ayeyarwady and Chindwin river channels. The region of the confluence of Chindwin River and Ayeyarwady River was selected as study area, because of the constant demand on Myanmar government to perform river works in order to enable navigability. Remote sensing has been conventionally used to assess bank erosion and sedimentation in meandering rivers, but adapting these methods for braided rivers has been a conceptual challenge. Assessment of fluvial geomorphological change in the confluence of Chindwin and Ayeyarwady Rivers in Myanmar using remote sensing The villages bordering unstable river channel should have a higher priority for future detailed investigations about riverbank erosion. Monywa and Pakokku deserve a greater attention, because they are large urban areas facing unstable stretches of Chindwin and Ayeyarwady, respectively. A conservation revegetation plan on vulnerable riverbanks and bluffs is possible strategy to cope with bank erosion, decreasing infrastructure losses and improving navigability. These revegetation buffers could include both areas of natural vegetation and human-planted vegetation that conciliates economic and ecological purposes. The development of more detailed survey maps for geology, soil, geomorphology and land cover for Myanmar would be useful for future research and planning regarding vulnerability to riverbank erosion. These maps could be overlaid with the results of the remote sensing methodology proposed in this study, in order to infer the causes of these erosional processes and the viability of planned interventions. A further detailed geomorphological and remote sensing zoning, coupled with extensive fieldwork would be helpful to advise government and people about the areas with higher risk for building houses and other infrastructures such as bridges, pumping stations and navigation facilities. Other areas with braided patterns in Ayeyarwady River and other basins could also be studied using the methodology applied in this study.
AGU Fall Meeting Abstracts, Dec 1, 2018
The Chindwin River is the main tributary of Ayeyarwady River. Hundreds of villagers and farmers h... more The Chindwin River is the main tributary of Ayeyarwady River. Hundreds of villagers and farmers have lost their houses and farmlands when the riverbanks collapse due to the heavy stream flows in the rainy season (Jun-Sep) along these two rivers. In these two basins, navigation is an important transportation. During droughts, the emerging sandbanks become an obstacle for boats. River bank erosion and deposition influence the natural sediment balance of Ayeyarwady and Chindwin river channels. The region of the confluence of Chindwin River and Ayeyarwady River was selected as study area, because of the constant demand on Myanmar government to perform river works in order to enable navigability. Remote sensing has been conventionally used to assess bank erosion and sedimentation in meandering rivers, but adapting these methods for braided rivers has been a conceptual challenge. Assessment of fluvial geomorphological change in the confluence of Chindwin and Ayeyarwady Rivers in Myanmar using remote sensing The villages bordering unstable river channel should have a higher priority for future detailed investigations about riverbank erosion. Monywa and Pakokku deserve a greater attention, because they are large urban areas facing unstable stretches of Chindwin and Ayeyarwady, respectively. A conservation revegetation plan on vulnerable riverbanks and bluffs is possible strategy to cope with bank erosion, decreasing infrastructure losses and improving navigability. These revegetation buffers could include both areas of natural vegetation and human-planted vegetation that conciliates economic and ecological purposes. The development of more detailed survey maps for geology, soil, geomorphology and land cover for Myanmar would be useful for future research and planning regarding vulnerability to riverbank erosion. These maps could be overlaid with the results of the remote sensing methodology proposed in this study, in order to infer the causes of these erosional processes and the viability of planned interventions. A further detailed geomorphological and remote sensing zoning, coupled with extensive fieldwork would be helpful to advise government and people about the areas with higher risk for building houses and other infrastructures such as bridges, pumping stations and navigation facilities. Other areas with braided patterns in Ayeyarwady River and other basins could also be studied using the methodology applied in this study.
Journal of Hydrology, 2004
Urban flooding is an inevitable problem for many cities around the world. In the present paper, m... more Urban flooding is an inevitable problem for many cities around the world. In the present paper, modelling approaches and principles for analyses of urban flooding are outlined. The paper shows how urban flooding can be simulated by onedimensional hydrodynamic modelling incorporating the interaction between (i) the buried pipe system, (ii) the streets (with open channel flow) and (iii) the areas flooded with stagnant water. The modelling approach is generic in the sense that it handles both urban flooding with and without flood water entry into houses. In order to visualize flood extent and impact, the modelling results are presented in the form of flood inundation maps produced in GIS. In this paper, only flooding from local rainfall is considered together with the impact in terms of flood extent, flood depth and flood duration. Finally, the paper discusses the data requirement for verification of urban flood models together with an outline of a simple cost function for estimation of the cost of the flood damages.
American Geophysical Union Fall Meeting, New Orleans, Louisiana, 11-15 Dec., Abstract GC51D-0830, 2017
The Chindwin River is the main tributary of Ayeyarwady River. Hundreds of villagers and farmers h... more The Chindwin River is the main tributary of Ayeyarwady River. Hundreds of villagers and farmers have lost their houses and farmlands when the riverbanks collapse due to the heavy stream flows in the rainy season (Jun-Sep) along these two rivers. In these two basins, navigation is an important transportation. During droughts, the emerging sandbanks become an obstacle for boats. River bank erosion and deposition influence the natural sediment balance of Ayeyarwady and Chindwin river channels. The region of the confluence of Chindwin River and Ayeyarwady River was selected as study area, because of the constant demand on Myanmar government to perform river works in order to enable navigability. Remote sensing has been conventionally used to assess bank erosion and sedimentation in meandering rivers, but adapting these methods for braided rivers has been a conceptual challenge. Assessment of fluvial geomorphological change in the confluence of Chindwin and Ayeyarwady Rivers in Myanmar u...
climate change, aquaculture, WEAP, Water management, Water use The viability of fish cage aquacul... more climate change, aquaculture, WEAP, Water management, Water use The viability of fish cage aquaculture in the Nan River in northern Thailand, for instance, depends on the maintenance of suitable in-stream flow conditions and water depths. In locations downstream but relatively close to Sirikit Dam this is primarily a function of dam storage and release schedules. Further downstream the influence of water demand and inflows to the main river channel have an increasingly greater impact on suitability of river flows for aquaculture. The objective of this paper is to explore how changes in climate and water demand could potentially influence flows in the Nan River at different times of the year and thus the conditions under which cage aquaculture remains viable. The Water Evaluation And Planning (WEAP) system was used to analyze water balances and river discharges, for a set of water demand, allocation, dam operation rules and climate change scenarios. The likelihood of discharges exceed...
climate change, aquaculture, water management, risk, adaptation, robust decision support This art... more climate change, aquaculture, water management, risk, adaptation, robust decision support This article assesses the robustness of alternative, longer-term, adaptation strategies for inland aquaculture under a set of qualitative future scenarios of climate, water and fish demand in northern Thailand. Strengthening climate risk management practices in inland aquaculture requires attention be given to short-term reactions, mid-term tactics, and long-term strategies at household, community, and national scales. The benefits of pursuing specific long-term strategies like investing in new technologies or infrastructure, establishing insurance or improving early warning systems, is shown to vary across scenarios. The implication is that adaptation pathways in the aquaculture sector must maintain significant flexibility.
Urban Drainage Modeling, 2001
Flooding in urban areas is an inevitable problem for many cities in Asia, in the year 2000 Bombay... more Flooding in urban areas is an inevitable problem for many cities in Asia, in the year 2000 Bombay, India and Phnom Penh, Cambodia had serious problems related to urban flooding. In Bangladesh, Dhaka has faced water logging for the last years. Even a smaller rain events may cause that parts of Dhaka have water standing in the streets. The situation was highlighted in September, 1996 when residences experienced ankle to knee-deep water on the streets. Daily activities in parts of the city were almost paralysed. Heavy traffic jams occurred due to stagnant water on the streets.
Flooding in urban areas is an inevitable problem for many cities in Asia, in the year 2000 Bombay... more Flooding in urban areas is an inevitable problem for many cities in Asia, in the year 2000 Bombay, India and Phnom Penh, Cambodia had serious problems related to urban flooding. In Bangladesh, Dhaka has faced water logging for the last years. Even a smaller rain ...
Journal of Hydrology, 2004
Urban flooding is an inevitable problem for many cities around the world. In the present paper, m... more Urban flooding is an inevitable problem for many cities around the world. In the present paper, modelling approaches and principles for analyses of urban flooding are outlined. The paper shows how urban flooding can be simulated by one-dimensional hydrodynamic ...
Flooding in urban areas is an inevitable problem for many cities in Asia, in the year 2000 Bombay... more Flooding in urban areas is an inevitable problem for many cities in Asia, in the year 2000 Bombay, India and Phnom Penh, Cambodia had serious problems related to urban flooding. In Bangladesh, Dhaka has faced water logging for the last years. Even a smaller rain ...
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Papers by Chusit Apirumanekul