Estimation of monthly air temperature using Random Forest algorithm

Duy Phien Tran, Yuei An Liou

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

Air temperature (Ta) measurements can be obtained from the ground weather stations with high accuracy and temporal frequency. Nevertheless, the weather stations are limited with spatial coverage because of their sparse distribution. Fortunately, satellite data with the advantage of high spatial coverage can provide us land surface temperature (LST) observations for further extracting Ta through their strong relationship. In this study, we applied Random Forest (RF) to estimate monthly Ta with l-km resolution across Taiwan in 2020. The variables considered in the RF model include air temperature observations, LST version 6 from Moderate Resolution Imaging Spectroradiometer (MODIS), Normalized Difference Vegetation Index (NDVI), Normalized Difference Latent Heat Index (NDLI), altitude, longitude, latitude, and albedo. To assess the RF model's performance, we employed 5-fold cross-validation and used the coefficient of determination (R2), root-mean-square of error (RMSE), and mean absolute error (MAE) as the performance measurement. The results show excellent five-fold cross-validated performance of the RF model, with R2 of 0.965, RMSE of 0. 98°C, and MAE of 0. 73°c. The results indicate that Ta can be accurately estimated using the RF prediction model, even in Taiwan, with complex topography and weather patterns.

原文???core.languages.en_GB???
主出版物標題Proceedings - 2022 IET International Conference on Engineering Technologies and Applications, IET-ICETA 2022
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781665491389
DOIs
出版狀態已出版 - 2022
事件2022 IET International Conference on Engineering Technologies and Applications, IET-ICETA 2022 - Changhua, Taiwan
持續時間: 14 10月 202216 10月 2022

出版系列

名字Proceedings - 2022 IET International Conference on Engineering Technologies and Applications, IET-ICETA 2022

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???2022 IET International Conference on Engineering Technologies and Applications, IET-ICETA 2022
國家/地區Taiwan
城市Changhua
期間14/10/2216/10/22

指紋

深入研究「Estimation of monthly air temperature using Random Forest algorithm」主題。共同形成了獨特的指紋。

引用此