The simulator utilizes tidal current data and water quality data by using remote sensing images and acoustic tomography to enhance higher precision with the comprehensive data assimilation system.
このような連続的なデータを計算機シミュレーションと融合させる「4次元データ同化」も狙いの一つです。
Four-dimensional data assimilation, which can enable us to fuse continuous data like these images used in the animation and numerical simulation, is also one of the purposes.
Data acquired from an experiment or a measurement site(upper left part) and an existing set of models(upper right part) are combined to perform the data assimilation.
In a study on the mechanisms of coastal current and water environment using data assimilation, we could replicate water temperature on the east side of areas around bay mouth in Tokyo Bay, which had not been replicated using a numerical calculation model alone.
They tried assimilating data at a slower speed, updating the model every 30 minutes rather than 10 minutes, and the model did not perform as well, indicating that the frequency of the assimilation is an important element of the improvement.
Compared to models without data assimilation from the Himawari-8 satellite, the simulations more accurately predicted the heavy, concentrated rain that took place, and came closer to predicting the situation where an overflowing river led to severe flooding.
The new system will enable us to keep pace with the increased number of people trying to do very large data assimilation problems", added Rich Loft, director of technology development in the computational and information systems laboratory at NCAR.
GPS掩蔽データの同化実験を行う。
Development of data assimilation techniques for GPS data..
データ同化と数値-国際シンポジウム「都市と極端気象。
Data Assimilation and Numerical Prediction- International Symposium on Extreme Weather and Cities.
専門分野台風の力学、モデリング、局地循環、データ同化。
Expertise dynamics of tropical cyclone, numerical modeling, local circulation, data assimilation.
組織レオロジーの理解に向けたデータ同化アプローチ。
A data assimilation approach for estimating rheological properties of moving cell sheets.
シミュレーションと現実世界とを結びつける「データ同化」が天気予報の精度に大きな影響を与える。
Data Assimilation is like a bridge between numerical simulation models and actual observations, and it has great impact on weather forecast.
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