DOI: 10.1002/jgrd.50553
论文题名: Near-surface air temperature lapse rates in the mainland China during 1962-2011
作者: Li X. ; Wang L. ; Chen D. ; Yang K. ; Xue B. ; Sun L.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 14 起始页码: 7505
结束页码: 7515
语种: 英语
英文关键词: altitudinal lapse rate
; China
; near-surface air temperature
Scopus关键词: Atmospheric thermodynamics
; Spatial distribution
; China
; Hydrological modeling
; Lapse rate
; Meteorological station
; Near surface air temperature
; Spatio-temporal variation
; Surface air temperatures
; Temperature and humidities
; Atmospheric temperature
; air temperature
; altitude
; cryosphere
; data set
; hydrological modeling
; meteorology
; numerical model
; relative humidity
; China
; Jiangxi
; Xin River
英文摘要: Land surface hydrological modeling is sensitive to near-surface air temperature, which is especially true for the cryosphere. The lapse rate of near-surface air temperature is a critical parameter when interpolating air temperature from station data to gridded cells. To obtain spatially distributed, fine-resolution near-surface (2 m) air temperature in the mainland China, monthly air temperature from 553 Chinese national meteorological stations (with continuous data from 1962 to 2011) are divided into 24 regional groups to analyze spatiotemporal variations of lapse rate in relation to surface air temperature and relative humidity. The results are as follows: (1) Evaluation of estimated lapse rate shows that the estimates are reasonable and useful for temperature-related analyses and modeling studies. (2) Lapse rates generally have a banded spatial distribution from southeast to northwest, with relatively large values on the Tibetan Plateau and in northeast China. The greatest spatial variability is in winter with a range of 0.3°C-0.9°C·100 m -1, accompanied by an inversion phenomenon in the northern Xinjiang Province. In addition, the lapse rates show a clear seasonal cycle. (3) The lapse rates maintain a consistently positive correlation with temperature in all seasons, and these correlations are more prevalent in the north and east. The lapse rates exhibit a negative relationship with relative humidity in all seasons, especially in the east. (4) Substantial regional differences in temporal lapse rate trends over the study period are identified. Increasing lapse rates are more pronounced in northern China, and decreasing trends are found in southwest China, which are more notable in winter. An overall increase of air temperature and regional variation of relative humidity together influenced the change of lapse rate. Key Points Spatiotemporal variation of lapse rate in China was characterized in 1962-2011 Impacts of temperature and humidity on lapse rate were regionally-dependent Independent evaluation of lapse rate proved its reliability and usability ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63553
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Lincui Road Chaoyang District, Beijing 100101, China; Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
Recommended Citation:
Li X.,Wang L.,Chen D.,et al. Near-surface air temperature lapse rates in the mainland China during 1962-2011[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(14)