Understanding Monin-Obukhov Similarity over the heterogeneous land surface

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K20858
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Meteorology/Physical oceanography/Hydrology; Hydraulic engineering
• Research Institution: Tohoku University
• Principal Investigator: Komori Daisuke 東北大学, 大学院環境科学研究科, 准教授 (50622627)
• Research Collaborator: Chidthaisong Amnat キングモンクット工科大学トンブリ校, 准教授 ; Sonklin Warangluck ナレスアン大学, 講師 ; Sanwangsri Montri パヤオ大学, 講師 ; Suwannapat Pimsiri パヤオ大学, 講師
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: Monin-Obukhov相似則 / 不均一地表面 / 渦相関法 / 時空間的不確実性

Outline of Final Research Achievements

I developed an evaluation method of spatial-temporal uncertainty for turbulence measurements. Furthermore, I developed new evaluation method for partitioning Evapotranspiration/CO2 fluxes into evaporation/transpiration and photosynthesis/soil respiration. I clarified that CO2 flux and H2O flux in the dry season were not often possible of Monin-Obukhov similarity due to the plant physiological heterogeneity and soil surface water heterogeneity.

Free Research Field

水文学、陸域水循環