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Spatiotemporal changes in the length and heating degree days of the heating period in Northeast China
X. J. Shen, B. H. Liu and D. W. Zhou; Shen XJ(神祥金)
2017
Source PublicationMeteorological Applications
Volume24Issue:1Pages:135-141
AbstractAs the coolest region in China, Northeast China has long and severe winters and is a main region for the use of central heating. Accurately predicting the heating energy consumption in Northeast China is very important for energy management and planning. Based on daily mean temperature data from 70 weather stations, this study investigated the spatiotemporal changes in the starting date for heating (HS), the end date for heating (HE), and the length (HL) and the heating degree days (HDD) of the heating period in Northeast China. Over Northeast China, regional averaged HS has become later by 0.77 days decade(-1) and HE has become earlier by 1.19 days decade(-1) during 1960-2011. Accordingly, regional averaged HL and HDD decreased significantly by 1.97 days decade(-1) and 66.28 degrees C decade(-1) respectively; this implies a decreasing demand for heating throughout the region. Spatially, the temporal trends of each heating variable varied in different locations. The spatial patterning of the HL trend was unlike that of the HDD trend due to different responses of HL and HDD to climate change. Temperature increase seems to have larger impacts on HL in warm south localities but more obvious effects on HDD in cold north localities of Northeast China. These different sensitivities of HL and HDD to temperature change should be considered when attempts are made to predict heating energy consumption in Northeast China in a changing climate.
DOI10.1002/met.1612
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Document Type期刊论文
Identifierhttp://ir.iga.ac.cn/handle/131322/7618
Collection湿地与全球变化学科组
Corresponding AuthorShen XJ(神祥金)
Recommended Citation
GB/T 7714
X. J. Shen, B. H. Liu and D. W. Zhou,Shen XJ. Spatiotemporal changes in the length and heating degree days of the heating period in Northeast China[J]. Meteorological Applications,2017,24(1):135-141.
APA X. J. Shen, B. H. Liu and D. W. Zhou,&神祥金.(2017).Spatiotemporal changes in the length and heating degree days of the heating period in Northeast China.Meteorological Applications,24(1),135-141.
MLA X. J. Shen, B. H. Liu and D. W. Zhou,et al."Spatiotemporal changes in the length and heating degree days of the heating period in Northeast China".Meteorological Applications 24.1(2017):135-141.
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