Temperature Prediction Based on Bidirectional Long Short-Term Memory and Convolutional Neural Network Combining Observed and Numerical Forecast Data

Sensors

卷:21

Inyoung Park¹  HyunSoo Kim²  ChulHan Song²  HongKook Kim³  Seongyoep Jeong³ 

[1] Gwangju Institute of Science and Technology, AI Graduate School, Gwangju 61005, Korea;

[2] Gwangju Institute of Science and Technology, School of Earth Sciences and Environmental Engineering, Gwangju 61005, Korea;

[3] Gwangju Institute of Science and Technology, School of Electrical Engineering and Computer Science, Gwangju 61005, Korea;

关键词: temperature prediction;    bidirectional long short-term memory (BLSTM);    convolutional neural network (CNN);    regional data assimilation and prediction system;    automatic weather station;    weather data;   

DOI  :  10.3390/s21030941

来源: DOAJ

【 摘 要 】

Weather is affected by a complex interplay of factors, including topography, location, and time. For the prediction of temperature in Korea, it is necessary to use data from multiple regions. To this end, we investigate the use of deep neural-network-based temperature prediction model time-series weather data obtained from an automatic weather station and image data from a regional data assimilation and prediction system (RDAPS). To accommodate such different types of data into a single model, a bidirectional long short-term memory (BLSTM) model and a convolutional neural network (CNN) model are chosen to represent the features from the time-series observed data and the RDAPS image data. The two types of features are combined to produce temperature predictions for up to 14 days in the future. The performance of the proposed temperature prediction model is evaluated by objective measures, including the root mean squared error and mean bias error. The experiments demonstrated that the proposed model combining both the observed and RDAPS image data is better in all performance measures for all prediction periods compared with the BLSTM-based model using observed data and the CNN-BLSTM-based model using RDAPS image data alone.

【 授权许可】

Unknown