Relevance of Hydro-Climatic Change Projection and Monitoring for Assessment of Water Cycle Changes in the Arctic

被引:27
作者
Bring, Arvid [1 ,2 ]
Destouni, Georgia [1 ,2 ]
机构
[1] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[2] Stockholm Univ, Bert Bolin Ctr Climate Res, S-10691 Stockholm, Sweden
基金
瑞典研究理事会;
关键词
Hydrology; Climate change; General circulation models; Monitoring; Pan-Arctic drainage basin; Runoff; SYNOPTICALLY FORCED HYDROCLIMATOLOGY; GENERAL-CIRCULATION MODELS; RIVER DISCHARGE; PRECIPITATION; SYSTEM; OCEAN;
D O I
10.1007/s13280-010-0109-1
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Rapid changes to the Arctic hydrological cycle challenge both our process understanding and our ability to find appropriate adaptation strategies. We have investigated the relevance and accuracy development of climate change projections for assessment of water cycle changes in major Arctic drainage basins. Results show relatively good agreement of climate model projections with observed temperature changes, but high model inaccuracy relative to available observation data for precipitation changes. Direct observations further show systematically larger (smaller) runoff than precipitation increases (decreases). This result is partly attributable to uncertainties and systematic bias in precipitation observations, but still indicates that some of the observed increase in Arctic river runoff is due to water storage changes, for example melting permafrost and/or groundwater storage changes, within the drainage basins. Such causes of runoff change affect sea level, in addition to ocean salinity, and inland water resources, ecosystems, and infrastructure. Process-based hydrological modeling and observations, which can resolve changes in evapotranspiration, and groundwater and permafrost storage at and below river basin scales, are needed in order to accurately interpret and translate climate-driven precipitation changes to changes in freshwater cycling and runoff. In contrast to this need, our results show that the density of Arctic runoff monitoring has become increasingly biased and less relevant by decreasing most and being lowest in river basins with the largest expected climatic changes.
引用
收藏
页码:361 / 369
页数:9
相关论文
共 44 条
[31]   Trajectory shifts in the Arctic and subarctic freshwater cycle [J].
Peterson, Bruce J. ;
McClelland, James ;
Curry, Ruth ;
Holmes, Robert M. ;
Walsh, John E. ;
Aagaard, Knut .
SCIENCE, 2006, 313 (5790) :1061-1066
[32]   Divergence in seasonal hydrology across northern Eurasia: Emerging trends and water cycle linkages [J].
Rawlins, M. A. ;
Ye, H. ;
Yang, D. ;
Shiklomanov, A. ;
McDonald, K. C. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2009, 114
[33]   Diagnosis of the record discharge of Arctic-draining Eurasian rivers in 2007 [J].
Rawlins, Michael A. ;
Serreze, Mark C. ;
Schroeder, Ronny ;
Zhang, Xiangdong ;
McDonald, Kyle C. .
ENVIRONMENTAL RESEARCH LETTERS, 2009, 4 (04)
[34]  
Serreze MC, 2003, J HYDROMETEOROL, V4, P387, DOI 10.1175/1525-7541(2003)4<387:MPOTAT>2.0.CO
[35]  
2
[36]   Large-scale hydro-climatology of the terrestrial Arctic drainage system [J].
Serreze, MC ;
Bromwich, DH ;
Clark, MP ;
Etringer, AJ ;
Zhang, TJ ;
Lammers, R .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2002, 108 (D2)
[37]   Hydrological responses to climate change and irrigation in the Aral Sea drainage basin [J].
Shibuo, Yoshihiro ;
Jarsjoe, Jerker ;
Destouni, Georgia .
GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (21)
[38]   Record Russian river discharge in 2007 and the limits of analysis [J].
Shiklomanov, A. I. ;
Lammers, R. B. .
ENVIRONMENTAL RESEARCH LETTERS, 2009, 4 (04)
[39]  
Vorosmarty C., 2001, HYDROLOGIC CYCLE ITS
[40]   Global system of rivers:: Its role in organizing continental land mass and defining land-to-ocean linkages [J].
Vörösmarty, CJ ;
Fekete, BM ;
Meybeck, M ;
Lammers, RB .
GLOBAL BIOGEOCHEMICAL CYCLES, 2000, 14 (02) :599-621