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2000 Fiscal Year Final Research Report Summary

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

Research Project

Project/Area Number 11680093
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 自然地理学
Research InstitutionNihon University (2000)
Mie University (1999)

Principal Investigator

MORI Kazuki  Professor, Coll.of Hum.and Sci., 文理学部, 教授 (60024494)

Project Period (FY) 1999 – 2000
Keywordsclimate change / global warming / water balance / precipitation / evapotranspiration / flood / drought / river water quality
Research Abstract

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.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

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

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 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). 51-58 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 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)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Mori, K.: "Hazard warnings for flood disaster mitigation."Int.Symp.on Floods and Droughts (Keynote speech). 1-7 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mori, K.: "Global warming and environmental changes in inland waters with particular reference to its effect on the hydrological characteristics of river basins (in Japanese with English summary)."Jap.Jour.Limnol. 61 (1). 51-58 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] 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)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2002-03-26  

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