Climate paleogeography knowledge graph and deep time paleoclimate classifications  

作　　者：Chenmin Yu Laiming Zhang Mingcai Hou Jianghai Yang Hanting Zhong Chengshan Wang 

机构地区：[1]State Key Laboratory of Biogeology and Environmental Geology,School of the Earth Science and Resources,China University of Geosciences,Beijing 100083,China [2]Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications,MNR&Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China [3]State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China [4]State Key Laboratory of Biogeology and Environmental Geology,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China

出　　处：《Geoscience Frontiers》2023年第5期362-372,共11页地学前缘（英文版）

基　　金：supported by the National Key R&D Plan of China(Grant No.2018YFE0204204);the National Natural Science Foundation of China(Grant Nos.42050104,41790455,and 42072116).

摘　　要：The climate paleogeography,especially the climate classifications,helps to interpret the global and regional climate changes and intuitively compare the climate conditions in different regions.However,the application of climate classification in deep time(i.e.,climate paleogeography)is prohibited due to the usually qualitatively constrained paleoclimate and the inconsistent descriptions and semantic heterogeneity of the climate types.In this study,a climate paleogeography knowledge graph is established under the framework of the Deep-Time Digital Earth program(DDE).The hierarchical knowledge graph consists of five paleoclimate classifications based on various strategies.The classifications are described and their strengths and weaknesses are fully evaluated in four aspects:“simplicity,applicability,quantifiability,and comparability”.We also reconstruct the global climate distributions in the Late Cretaceous according to these classifications.The results are compared and the relationships among these climate types in different classifications are evaluated.Our study unifies scientific concepts from different paleoclimate classifications,which provides an important theoretical basis for the application of paleoclimate classifications in deep time.

关 键 词：Climate paleogeography Knowledge graph Paleoclimate classification Deep-Time Digital Earth program 

分 类 号：P597[天文地球—地球化学] P534.5[天文地球—地质学]