Abstract
This study analyzed the temporal precipitation variations in the arid Central Asia (ACA) and their regional differences during 1930–2009 using monthly gridded precipitation from the Climatic Research Unit (CRU). Our results showed that the annual precipitation in this westerly circulation dominated arid region is generally increasing during the past 80 years, with an apparent increasing trend (0.7 mm/10 a) in winter. The precipitation variations in ACA also differ regionally, which can be divided into five distinct subregions (I West Kazakhstan region, II East Kazakhstan region, III Central Asia Plains region, IV Kyrgyzstan region, and V Iran Plateau region). The annual precipitation falls fairly even on all seasons in the two northern subregions (regions I and II, approximately north of 45°N), whereas the annual precipitation is falling mainly on winter and spring (accounting for up to 80% of the annual total precipitation) in the three southern subregions. The annual precipitation is increasing on all subregions except the southwestern ACA (subregion V) during the past 80 years. A significant increase in precipitation appeared in subregions I and III. The long-term trends in annual precipitation in all subregions are determined mainly by trends in winter precipitation. Additionally, the precipitation in ACA has significant interannual variations. The 2–3-year cycle is identified in all subregions, while the 5–6-year cycle is also found in the three southern subregions. Besides the inter-annual variations, there were 3–4 episodic precipitation variations in all subregions, with the latest episodic change that started in the mid- to late 1970s. The precipitations in most of the study regions are fast increasing since the late 1970s. Overall, the responses of ACA precipitation to global warming are complicated. The variations of westerly circulation are likely the major factors that influence the precipitation variations in the study region.
Similar content being viewed by others
References
IPCC. Summary for Policymakers of Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge: Cambridge University Press, 2007. 4–6
Mann M E. Climate over the past two millennia. Annu Rev Earth Planet Sci, 2007, 35: 111–136
Mann M E, Zhang Z H, Hughes M K, et al. Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia. Proc Natl Acad Sci USA, 2008, 105: 13252–13257
Dai A G, Trenberth K E, Karl T R. Global variations in droughts and wet spells: 1900–1995. Geophys Res Lett, 1998, 25: 3367–3370
Ma Z G, Fu C B. Global aridification in the second half of the 20th century and its relationship to large-scale climate background. Sci China Ser D-Earth Sci, 2007, 50: 776–788
Hulme M. Recent climatic change in the world’s drylands. Geophys Res Lett, 1996, 23: 61–64
Rogers J C, Van L H. The seesaw in winter temperatures between Greenland and northern Europe. Part II: Some oceanic and atmospheric effects in middle and high latitudes. Mon Weather Rev, 1979, 107: 509–519
Aizen E M, Aizen V B, Melack J M, et al. Precipitation and atmospheric circulation patterns at mid-latitudes of Asia. Int J Climatol, 2001, 21: 535–556
Chen F H, Yu Z C, Yang M L, et al. Holocene moisture evolution in arid central Asia and its out-of-phase relationship with Asian monsoon history. Quat Sci Rev, 2008, 27: 351–364
Zhao Y, Yu Z C, Chen F H, et al. Vegetation response to Holocene climate change in monsoon-influenced region of China. Earth-Sci Rev, 2009, 97: 242–256
Chen F H, Chen J H, Holmes J, et al. Moisture changes over the last millennium in arid central Asia: A review, synthesis and comparison with monsoon region. Quat Sci Rev, 2010, 29: 1055–1068
Chen F H, Chen J H, Huang W. A discussion on the westerly-dominated climate model in mid-latitude Asia during the modern interglacial period (in Chinese). Earth Sci Front, 2009, 16: 023–032
Chen F H, Wang J S, Jin L Y, et al. Rapid warming in mid-latitude central Asia for the past 100 years. Front Earth Sci Chin, 2009, 3: 42–50
Shi Y F, Shen Y P, Kang E, et al. Recent and future climate change in northwest China. Clim Change, 2007, 80: 379–393
Su M F, Wang H J. Relationship and its instability of ENSO-Chinese variations in droughts and wet spells. Sci China Ser D-Earth Sci, 2007, 50: 145–152
Jiang D B, Su M F, Wei R Q, et al. Variation and projection of drought and wet conditions in Xinjiang (in Chinese). Chin J Atmos Sci, 2009, 33: 90–98
Feng S, Nadarajah S, Hu Q. Modeling annual extreme precipitation in China using generalized extreme value distribution. J Meteorol Soc Jpn, 2007, 85: 599–613
Jin L Y, Fu J L, Chen F H. Spatial differences of precipitation over northwest China during the last 44 years and its response to global warming (in Chinese). Sci Geogr Sin, 2005, 25: 567–572
Ma Z G, Fu C B. Some evidence of drying trend over northern China from 1951 to 2004. Chin Sci Bull, 2006, 51: 2913–2925
Li J B, Gou X H, Cook E R, et al. Tree-ring based drought reconstruction for the central Tien Shan area in northwest China. Geophys Res Lett, 2006, 33: L07715
Li J B, Chen F H, Cook E R, et al. Drought reconstruction for north central China from tree rings: The value of the Palmer drought severity index. Int J Climatol, 2007, 27: 903–909
Wang J S, Chen F H, Jin L Y, et al. Characteristics of the dry/wet trend over arid central Asia over the past 100 years. Clim Res, 2010, 41: 51–59
Lioubimtseva E, Cole R, Adams J M, et al. Impacts of climate and land-cover changes in arid lands of central Asia. J Arid Environ, 2005, 62: 285–308
Mitchell T D, Jones P D. An improved method of constructing a database of monthly climate observations and associated high-resolution grids. Int J Climatol, 2005, 25: 693–712
Wen X Y, Wang S W, Zhu J H, et al. An overview of China climate change over the 20th century using UK UEA/CRU high resolution grid data (in Chinese). Chin J Atmos Sci, 2006, 30: 894–904
Neukom R, Prieto M R, Moyano R, et al. An extended network of documentary data from south America and its potential for quantitative precipitation reconstructions back to the 16th century. Geophys Res Lett, 2009, 36: L12703
Xu H M, Taylor R G, Kingston D G, et al. Hydrological modeling of river Xiangxi using SWAT2005: A comparison of model parameterizations using station and gridded meteorological observations. Quat Int, 2010, 226: 54–59
Lorenz E N. Empirical orthogonal function and statistical weather prediction. Scientific Report No. 1 Statist Forecasting Project, Dept. Meteor., MIT, Boston, 1956
Wei F Y. Modern Climat Statistical Diagnosis and Forecasting Technique (in Chinese). Beijing: China Meteorological Press, 2007
Tomé A R, Miranda P M A. Piecewise linear fitting and trend changing points of climate parameters. Geophys Res Lett, 2004, 31: L02207
Thomson D J. Spectrum estimation and harmonic analysis. Proc IEEE, 1982, 70: 1055–1096
Li J B, Cook E R, Chen F H, et al. An extreme drought event in the central Tien Shan area in the year 1945. J Arid Environ, 2010, 74: 1225–1231
Yuan Y J, Jin L Y, Shao X M, et al. Variations of the spring precipitation day numbers reconstructed from tree rings in the Urumqi River drainage, Tianshan Mts. over the last 370 years. Chin Sci Bull, 2003, 48: 1507–1510
Wei W S, Yuan Y J, Yu S L, et al. Climate change in recent 235 years and trend prediction in Tianshan mountainous area (in Chinese). J Desert Res, 2008, 28: 803–808
North G R, Bell T L, Cahalan R F, et al. Sampling errors in the estimation of empirical orthogonal function. Mon Weather Rev, 1982, 110: 699–706
Brohan P, Kennedy J J, Harris I, et al. Uncertainty estimates in regional and global observed temperature changes: A new dataset from 1850. J Geophys Res, 2006, 111: D12106
Qian W H, Qin A. Precipitation division and climate shift in China from 1960 to 2000. Theor Appl Climatol, 2008, 93: 1–17
Hu R J, Jiang F Q, Wang Y J, et al. A study on signals and effects of climatic pattern change from warm-dry to warm-wet in Xinjiang (in Chinese). Arid Land Geogr, 2002, 25: 194–200
Guo N, Zhang J, Liang Y. Climate change indicated by the recent change of inland lakes in northwest China (in Chinese). J Glaciol Geocryol, 2003, 25: 124–127
Li J P, Zeng Q C. A new monsoon index and the geographical distribution of the global monsoons. Adv Atmos Sci, 2003, 20: 299–302
Wang B, Ding Q H. Changes in global monsoon precipitation over the past 56 years. Geophys Res Lett, 2006, 33: L06711
Ding Y H, Wang Z Y, Sun Y. Inter-decadal variation of the summer precipitation in east China and its association with decreasing Asian summer monsoon. Part I: Observed evidences. Int J Climatol, 2008, 28: 1139–1161
Zeng Z M, Yan Z W, Ye D Z. Two global warming events in the 20th century (in Chinese). Clim Environ Res, 2003, 8: 319–330
Li L J, Wang B, Zhou T J. Impacts of external forcing on the 20th century global warming. Chin Sci Bull, 2007, 52: 3148–3154
Wang J S, Chen F H, Jin L Y, et al. The response to two global warming periods in the 20th century over the arid central Asia (in Chinese). J Glaciol Geocryol, 2008, 30: 224–233
Raziei T, Bordi I, Pereira L S. A precipitation-based regionalization for western Iran and regional drought variability. Hydrol Earth Syst Sci, 2008, 12: 1309–1321
Jin L Y, Chen F H, Morrill C, et al. Causes of early Holocene desertification in arid Central Asia. Clim Dyn, 2011, doi: 10. 1007/s00382-011-1081-1
Trenberth K E, Shin W T K. Quasi-Biennial fluctuations in sea level pressure over the Northern Hemisphere. Mon Weather Rev, 1984, 112: 761–777
Rasmusson E M, Wang X, Ropelewski C F. The biennial component of ENSO variability. J Mar Syst, 1990, 1: 71–96
Li C Y, Long Z X. Study on Subtropical High activity over the western Pacific and QBO in the stratosphere (in Chinese). Chin J Atmos Sci, 1997, 21: 670–678
Sathiyamoorthy V, Mohanakumar K. Characteristics of tropospheric biennial oscillation and its possible association with the stratospheric QBO. Geophys Res Lett, 2000, 27: 669–672
Ding Y G, Yu J H, Shi N. Quasi-Biennial Oscillation variability in interannual variance of the global surface temperature during the last 100-year period (in Chinese). Chin J Atmos Sci, 2001, 25: 89–102
Wang S W. A preliminary study on the characteristics and evolution of mean monthly circulation, I. Zonal Index (in Chinese). Acta Meteorol Sin, 1963, 33: 361–374
Wang C H, Cui Y. A study of the stability of the precipitation cycle over northwest China in the past 50 years (in Chinese). Adv Earth Sci, 2006, 21: 576–584
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, F., Huang, W., Jin, L. et al. Spatiotemporal precipitation variations in the arid Central Asia in the context of global warming. Sci. China Earth Sci. 54, 1812–1821 (2011). https://doi.org/10.1007/s11430-011-4333-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11430-011-4333-8