IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Simulation of soil thermal dynamics using an artificial neural network model for a permafrost alpine meadow on the Qinghai-Tibetan plateau
Chang Juan1; Wang Genxu2; Guo Linmao1
2019
Source PublicationPERMAFROST AND PERIGLACIAL PROCESSES
ISSN1045-6740
EISSN1099-1530
Volume30Issue:3Pages:195-207
SubtypeArticle
Contribution Rank2
AbstractThe thermal regime of the active layer temperature (ALT) is a key variable with which to monitor permafrost changes and to improve the precision of simulations and predictions of land surface processes. The dynamics of the active layer thermal regime can differ substantially under various land surface types and climatic conditions. The proper simulation of these different processes is essential for accurately predicting the changes in water cycles and ecosystems under a warming climate scenario. In this paper, an artificial neural network (ANN) forecasting model system was developed using only two accessible parameters, air and ground surface temperatures, to predict and simulate the ALT thermal regime. The model results show that the ANN model has better real-time prediction capability than other physics-based models and performs well at simulating and forecasting variations in soil temperature with a step size of 12days in permafrost regions on the Qinghai-Tibetan Plateau. The influence of an increase in air temperature on the ALT thermal regime was more intense during the thawing process than during the freezing process, and this influence decreased with an increase in soil depth.
Keywordalpine meadow ANN model Qinghai-Tibetan Plateau soil thermal dynamics
DOI10.1002/ppp.2003
Indexed BySCI
Language英语
WOS IDWOS:000482392000006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26973
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorChang Juan; Wang Genxu
Affiliation1.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China;
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Chang Juan,Wang Genxu,Guo Linmao. Simulation of soil thermal dynamics using an artificial neural network model for a permafrost alpine meadow on the Qinghai-Tibetan plateau[J]. PERMAFROST AND PERIGLACIAL PROCESSES,2019,30(3):195-207.
APA Chang Juan,Wang Genxu,&Guo Linmao.(2019).Simulation of soil thermal dynamics using an artificial neural network model for a permafrost alpine meadow on the Qinghai-Tibetan plateau.PERMAFROST AND PERIGLACIAL PROCESSES,30(3),195-207.
MLA Chang Juan,et al."Simulation of soil thermal dynamics using an artificial neural network model for a permafrost alpine meadow on the Qinghai-Tibetan plateau".PERMAFROST AND PERIGLACIAL PROCESSES 30.3(2019):195-207.
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