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A newly integrated ground temperature dataset of permafrost along the China–Russia crude oil pipeline route in Northeast China
Earth System Science Data ( IF 11.2 ) Pub Date : 2022-11-22 , DOI: 10.5194/essd-14-5093-2022 Guoyu Li , Wei Ma , Fei Wang , Huijun Jin , Alexander Fedorov , Dun Chen , Gang Wu , Yapeng Cao , Yu Zhou , Yanhu Mu , Yuncheng Mao , Jun Zhang , Kai Gao , Xiaoying Jin , Ruixia He , Xinyu Li , Yan Li
Earth System Science Data ( IF 11.2 ) Pub Date : 2022-11-22 , DOI: 10.5194/essd-14-5093-2022 Guoyu Li , Wei Ma , Fei Wang , Huijun Jin , Alexander Fedorov , Dun Chen , Gang Wu , Yapeng Cao , Yu Zhou , Yanhu Mu , Yuncheng Mao , Jun Zhang , Kai Gao , Xiaoying Jin , Ruixia He , Xinyu Li , Yan Li
The thermal state of permafrost in the present and future is
fundamental to ecosystem evolution, hydrological processes, carbon release
and infrastructure integrity in cold regions. In 2011, we initiated a
permafrost monitoring network along the China–Russia crude oil pipeline
(CRCOP) route at the eastern flank of the northern Da Xing'anling Mountains
in Northeast China. We compiled an integrated dataset of the ground thermal
state along the CRCOP route consisting of meteorological data near the
southern limit of latitudinal permafrost, ground temperature (GT) data in 20
boreholes with depths of 10.0–60.6 m, soil volumetric liquid water contents (VWCs) and 2D electrical resistivity tomography (ERT) data at different
sites. Results demonstrate a permafrost warming during 2011–2020 in the
vicinity of the southern limit of latitudinal permafrost, as manifested by
rising GTs at almost all depths in response to climate
warming. Local thermal disturbances triggered by the construction and
operation of CRCOPs have resulted in significant permafrost warming and
subsequent thawing on the right-of-way (ROW) of the pipelines. This
permafrost thaw will persist, but it can be alleviated by adopting
mitigative measures, such as an insulation layer and thermosyphons. The
in situ observational dataset is of great value for assessing the variability of
permafrost under the linear disturbances of the CRCOPs and related
environmental effects, for understanding hydro–thermal–mechanical
interactions between the buried pipelines and permafrost foundation soils,
and for evaluating the operational and structural integrity of the pipeline
systems in the future. The dataset is available at the National Tibetan
Plateau/Third Pole Environment Data Center
(https://doi.org/10.11888/Cryos.tpdc.272357; Li, 2022).
更新日期:2022-11-22