A study on the response of hydrologic extremes attendant upon climate change and its spatial-temporal characteristics

气候变化引起的极端水文响应及其时空特征研究

• 批准号: 11680093
• 负责人: MORI Kazuki
• 金额: $ 1.22万
• 依托单位: Nihon University (2000)Mie University (1999)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680093/
• 关键词: climate change; global warming; water balance; precipitation; evapotranspiration; flood; drought; river water quality; 危機管理; ピーク水位

In the present paper, components of hydroclimatological water balance were examined in the Ishikari, Shinano, Tone, Kiso-Nagara-Ibi and Shira Rivers basin. The purpose of this study is to elucidate the distinctive features both on spatial distributions and on secular changes in annual precipitation, potential evapotranspiration and runoff as a grounding in regional hydrology at basin-wide scale.The results are summarized as follows :As one of the temporal characteristics of long-term variability, it is pointed out that the annual precipitation in the Kiso, Nagara and Ibi Rivers basin is inclined to be below the average since the latter half of the 1980s. On the contrary, annual evapotranspiration has increased over a long period of time. According to the annual runoff as calculated by the remainder of annual values of evapotranspiration from precipitation, the observed value on discharge has a tendency to overestimation.Water quality of the Kiso River changed toward an extremely worse condition under the typical drought events as recorded in 1994.Although comparison of the result presented for this investigation with those for different climatic regions is left for further studies, the identified fact would provide a meaningful basic information from the comparative hydrological point of view.

本文研究了石kari、Shinano、Tone、Kiso-Nagara-Ibi和Shira流域的水文气候水平衡成分。本研究的目的是阐明流域年降水量、潜在蒸散量和径流作为区域水文基础的空间分布特征和长期变化特征。结果表明：作为长期变率的时间特征之一，自20世纪80年代后半期以来，木尾河、长原河和宜必河流域的年降水量倾向于低于平均水平。相反，在很长一段时间内，年蒸散量增加。根据年降水量蒸散发余量计算的年径流量，对径流量的观测值有高估的倾向。基索河的水质在1994年记录的典型干旱事件中变得极其恶劣。虽然将本调查的结果与不同气候区的结果进行比较有待进一步研究，但从比较水文的角度来看，已确定的事实将提供有意义的基本信息。

项目成果

森 和紀: "地球温暖化と陸水環境の変化-とくに河川の水文特性への影響を中心に-"陸水学雑誌. 61(1). 53-60 (2000)

Kazunori Mori：“全球变暖和陆地水环境的变化 - 重点关注对河流水文特征的影响”《湖沼学杂志》61(1) (2000)。

森和紀: "木曽三川流域の水文データベース-降水量・蒸発散量・流出量について-"日本大学文理学部自然科学研究所研究紀要. 36. (2001)

Kazunori Mori：“木曾三河流域的水文数据库 - 降水、蒸散和径流 -”日本大学文理学院自然科学研究所通报 36。（2001）。

Mori,Kazuki: "Hazard warnings for flood disaster mitigation"Int.Symp.on Floods and Droughts. 1-7 (1999)

森一树：“减轻洪水灾害的危险警告”Int.Symp.on 洪水和干旱。

Mori, K.: "Hydrological database of the Kiso, Nagara and Ibi Rivers Basin in respect of precipitation, evapotranspiration and runoff (in Japanese with English summary)."Proc.Inst.Nat.Sci., Nihon Univ.. 36. (2001)

Mori, K.：“木曾河流域、长良河流域和伊比河流域有关降水、蒸散和径流的水文数据库（日语，英文摘要）。”Proc.Inst.Nat.Sci.，Nihon Univ.. 36。（

森和紀: "木曽三川流域の水文データベース-降水量・蒸発散量・流出量について-"日本大学文理学部自然科学研究所研究紀要. 36. 103-109 (2001)

Kazunori Mori：“三个木曾河流域的水文数据库 - 降水、蒸散和径流 -” 日本大学文理学院自然科学研究所通报 36. 103-109 (2001)。