DOI: 10.1175/JCLI-D-15-0569.1
Scopus记录号: 2-s2.0-84960863460
论文题名: Quantification of warming climate-induced changes in terrestrial Arctic river ice thickness and phenology
作者: Park H. ; Yoshikawa Y. ; Oshima K. ; Kim Y. ; Ngo-Duc T. ; Kimball J.S. ; Yang D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 5 起始页码: 1733
结束页码: 1754
语种: 英语
Scopus关键词: Biology
; Rivers
; Sea ice
; Snow
; Stream flow
; Biogeochemical modeling
; Explicit representation
; Hydrologic cycles
; Hydrologic models
; Land surface modeling
; Satellite observations
; Surface air temperatures
; Water temperatures
; Ice
; climate change
; hydrological cycle
; hydrological modeling
; land surface
; phenology
; river discharge
; river ice
; streamflow
; warming
; Arctic
英文摘要: A land process model [the coupled hydrological and biogeochemical model (CHANGE)] is used to quantitatively assess changes in the ice phenology, thickness, and volume of terrestrial Arctic rivers from 1979 to 2009. The CHANGE model was coupled with a river routing and discharge model enabling explicit representation of river ice and water temperature dynamics. Model-simulated river ice phenological dates and thickness were generally consistent with in situ river ice data and landscape freeze-thaw (FT) satellite observations. Climate data indicated an increasing trend in winter surface air temperature (SAT) over the pan-Arctic during the study period. Nevertheless, the river ice thickness simulations exhibited a thickening regional trend independent of SAT warming, and associated with less insulation and cooling of underlying river ice by thinning snow cover. Deeper snow depth (SND) combined with SAT warming decreased simulated ice thickness, especially for Siberian rivers, where ice thickness is more strongly correlated with SND than SAT. Overall, the Arctic river ice simulations indicated regional trends toward later fall freezeup, earlier spring breakup, and consequently a longer annual ice-free period. The simulated ice phenological dates were significantly correlated with seasonal SAT warming. It is found that SND is an important factor for winter river ice growth, while ice phenological timing is dominated by seasonal SAT. The mean total Arctic river ice volume simulated from CHANGE was 54.1 km3 based on the annual maximum ice thickness in individual grid cells, while river ice volume for the pan-Arctic rivers decreased by 2.82 km3 (0.5%) over the 1979-2009 record. Arctic river ice is shrinking as a consequence of regional climate warming and coincident with other cryospheric components, including permafrost, glaciers, and sea ice. © 2016 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50266
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Arctic Climate and Environment Research, JAMSTEC, Yokosuka, Japan; Department of Civil and Environmental Engineering, Kitami Institute of Technology, Kitami, Hokkaido, Japan; Numerical Terradynamic Simulation Group, College of Forestry and Conservation, University of Montana, Missoula, MT, United States; Department of Meteorology and Climate Change, Hanoi College of Science, Vietnam National University, Hanoi, Viet Nam; National Hydrology Research Centre, Environment Canada, Saskatoon, SK, Canada
Recommended Citation:
Park H.,Yoshikawa Y.,Oshima K.,et al. Quantification of warming climate-induced changes in terrestrial Arctic river ice thickness and phenology[J]. Journal of Climate,2016-01-01,29(5)