Numerical simulation on wetlands in arid regions by introducing river innundation and surface evaporation processes into a global water resources model

2016 Fiscal Year Final Research Report

• Project/Area Number: 25820230
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: Hanasaki Naota 国立研究開発法人国立環境研究所, 地球環境研究センター, 主任研究員 (50442710)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 全球水文モデル / 乾燥地

Outline of Final Research Achievements

This research was conducted by slightly expanding the contents from the original research plan. A program was developed to calibrate hydrological parameter globally for the H08 global hydrological model. This program automatically calibrates four hydrological parameters of H08 from headwater to river mouth by the Monte Carlo approach for the major rivers in the world. This results in considerable improvement in the reproducibility of retrospective runoff simulation globally including arid areas. A new sub-model of H08 was also developed to estimate the usage of seawater desalination. The sub-model estimates the areal extent where seawater desalination is taken place, and the volume of usage by combining geographical, socio-economic, and climatic conditions. This enables us to conduct realistic water resources simulation in coastal arid zone with little surface water and renewable groundwater resources.

Free Research Field

全球水文学