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2023 Fiscal Year Final Research Report

Super-resolution evaluation system of air pollution at pedestrian level

Research Project

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Project/Area Number 19KK0105
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 22:Civil engineering and related fields
Research InstitutionTokyo Institute of Technology

Principal Investigator

Inagaki Atsushi  東京工業大学, 環境・社会理工学院, 助教 (80515180)

Co-Investigator(Kenkyū-buntansha) 長谷川 雄太  国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究職 (10851016)
小野寺 直幸  国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究職 (50614484)
Project Period (FY) 2019-10-07 – 2024-03-31
Keywords都市大気境界層 / 街区 / 大気環境計測 / 格子ボルツマン法 / ラグランジュ粒子
Outline of Final Research Achievements

This study aimed to make a system to analyze the atmopsheric environment in Jakarta. (1) Lagrangian stochastic model is implemented for the kinematics of passive particles, which is perfomred in the simulation of the lattice Boltzmann equation model. A simulation of the turbulent boundary layer with particle dispersion from mobile emission is conducted for a central part of Jakarta. The size of the simulation domain extends about 5x20 km horizontally with 2m grid spacing. (2) Near-surface atmophseric observation points are constructed at 5 location within Jakarta region. The data is used to compare with the numerical simulation, and also for the assessment of the climatological characteristics of the near surface atmopsheric envornment.

Free Research Field

都市気象

Academic Significance and Societal Importance of the Research Achievements

本研究の意義として、大規模な計算を高速に実施可能な格子ボルツマン法LESモデルに、確率過程を考慮した粒子動態モデルを導入したこと、それを用いてジャカルタの移動排出源からの粒子動態を分析したこと、ジャカルタ現地での地上大気観測網を構築し、ジャカルタ都市における地上付近(大気境界層内)の微気候学的特徴を明らかにしたこと等に意義がある。

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Published: 2025-01-30  

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