ML4WX

Data assimilation

Precipitation Data Assimilation System Based on a Neural Network and Case-Based Reasoning System

Jing Lu, Wei Hu, Xiakun Zhang

Information ·

PaperPDF

In one sentence. Integrates neural network and case-based reasoning into a precipitation data assimilation system to improve weather forecasts; results reported as effective.

Abstract

There are several methods to forecast precipitation, but none of them is accurate enough since predicting precipitation is very complicated and influenced by many factors. Data assimilation systems (DAS) aim to increase the prediction result by processing data from different sources in a general way, such as a weighted average, but have not been used for precipitation prediction until now. A DAS that makes use of mathematical tools is complex and hard to carry out. In our paper, machine learning techniques are introduced into a precipitation data assimilation system. After summarizing the theoretical construction of this method, we take some practical weather forecasting experiments and the results show that the new system is effective and promising.

Labels

Topic
Data assimilation, Global medium-range NWP
Type
New model or method
Method
Classical ML (trees, GP, linear, kernels)
Time scale
6 h–3 days
Domain
Regional
Data
Other
Status
Research
Identifiers
DOI:10.3390/info9050106 OpenAlex:W2800044770
Added
2026-10-22

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