抄録
Climate changes induced by global warming are a worldwide concern. In some regions, the risk of serious floods is expected to increase under a changing climate during the 21st century. This study examined the potential impacts of climate change in the Chao Phraya River Basin (CPRB), Thailand, using the MRI-AGCM3.1 and 3.2 datasets, developed by the Meteorological Research Institute (MRI) of the Japan Meteorological Agency, as inputs to a watershed hydrologic model. The results indicated that future river discharges will increase owing to increased rainfall in the upper mountainous region and in the Nan, Yom, and Wang river basins. Furthermore, a significant increase in annual inflow to the Bhumibol reservoir was projected in the late 21st century, whereas drought conditions may occur in the Pasak River Basin in the future.
