Abstract
Studies conducted at the beginning of this century revealed a warming and humidification trend in northwest China, which lasted for a short period, with some minor variations. The future trend remains uncertain, with uncertainty over the future duration of warming and humidification trends in the region. In this study, a comprehensive index was constructed to quantitatively characterize the degree of humidity. Using observation data, National Center for Atmospheric Research/National Centers for Environmental Prediction (NCAR/NCEP) reanalysis data, and future scenario prediction data we systematically analyzed the temporal and spatial evolution characteristics of the warming and humidification trend in northwest China and its possible causes. The results showed that the temperature in northwest China has been continuously increasing since 1961, and although there was no obvious precipitation trend from 1961 to 1999, it has been increasing nonlinearly since 2000. The wetness index considers the synergy of evaporation and precipitation, and had the same pattern of variation as precipitation. From a spatial perspective, the temperature has consistently increased throughout the whole northwest region, and the degree of warming has gradually increased. Precipitation displayed a trend of increasing in the west and decreasing in the east, but the area with increased rainfall expanded eastward over almost three climatic periods, and the area experiencing humidification extended across the whole of the northwest. There has been an obvious eastward expansion of climate humidification in northwest China since the start of this century. However, the current extent of climate humidification has not changed the basic climate pattern in northwest China. Over the next 30 years, the humidification trend will likely slow down significantly compared with the last 20 years. The eastward expansion of climate humidification since the start of this century may have resulted from the multi-decadal synergistic influence of westerly wind circulation and monsoon circulation.
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Data availability statement
The meteorological observation data originated from the National Meteorological Information Center of China. The CMIP6 datasets were obtained online (https://esgf-node.llnl.gov/search/cmip6/). The NCEP–NCAR reanalysis dataset was obtained online (https://www.esrl.noaa.gov/psd/data/gridded/reanalysis/).
References
Bi SB, Sun L, Li XY (2018) Characteristics of drought and flood disasters in the middle and lower reaches of the Yellow River from 1470 to 1911 based on EEMD method (in Chinese). J Nat Disasters 27:137–147. https://doi.org/10.13577/j.jnd.2018.0117
Chen HP, Sun JQ (2013) Projected change in East Asian summer monsoon precipitation under RCP scenario. Meteorol Atmos Phys 121:55–77. https://doi.org/10.1007/s00703-013-0257-5
Chen LX, Shao YN, Zhang QF (1991) Preliminary analysis of climatic variation during the last 39 years in China(in Chinese). Adv Atmos Sci 8:279–288. https://doi.org/10.1007/BF02919610
Chen SY, Huang JP, Kang LT et al (2017) Emission, transport, and radiative effects of mineral dust from the Taklimakan and Gobi deserts: comparison of measurements and model results. Atmos Chem Phys 17:2401–2421. https://doi.org/10.5194/acp-17-2401-2017
Chen FH, Chen J, Huang W (2021a) Weakened East Asian summer monsoon triggers increased precipitation in Northwest China (in Chinese). Sci China Earth Sci 64:835–837. https://doi.org/10.1007/s11430-020-9731-7
Chen J, Huang W, Feng S et al (2021b) The modulation of westerlies-monsoon interaction on climate over the monsoon boundary zone in East Asia. Int J Climatol 41:E3049–E3064. https://doi.org/10.1002/joc.6903
Dai AG, Lamb PJ, Trenberth KE et al (2004) The recent Sahel drought is real. Int J Climatol 24:1323–1331. https://doi.org/10.1002/joc.1083
Ding Y, Wang S (2001) Introduction to climate and ecological environment in Northwest China, 1st edn. Meteorological Press, Beijing, pp 112–115
Ding YJ, Ye BS, Liu SY (2000) Impact of climate change on the aipine stream flow during the past 40a in the middle part of the qilian mountains, Northwestern China(in Chinese). J Glaciol Geocryol 2000:193–199
Fu CB, An ZS (2002) Study of aridification in northern China—a global change issue facing directly the demand of nation(in Chinese). Earth Sci Front 9:271–275. https://doi.org/10.1002/mop.10502
Hua LJ, Zhong LH, Ma ZG (2017) Decadal transition of moisture sources and transport in northwestern China during summer from 1982 to 2010. J Geophys Res Atmos 122:12522–12540. https://doi.org/10.1002/2017JD027728
Huang NE, Shen SP (2005) Hilbert-Huang transform and its applications. World Sci. https://doi.org/10.1142/5862
Huang JP, Ji MX, Xie YK et al (2016) Global semi-arid climate change over last 60 years. Clim Dyn 46:1131–1150. https://doi.org/10.1007/s00382-015-2636-8
Huang JP, Li Y, Fu CB et al (2017a) Dryland climate change recent progress and challenges. Rev Geophys 55:719–778. https://doi.org/10.1002/2016RG000550/full
Huang JP, Yu HP, Dai AG et al (2017b) Drylands face potential threat under 2 °C global warming target. Nat Clim Change 7:417–422. https://doi.org/10.1038/nclimate3275
Kalnay E, Kanamitsu M, Kistler R et al (1996) The NCEP/NCAR 40-year reanalysis project. Bull Am Meteorol Soc 77:437–472. https://doi.org/10.1175/1520-0477(1996)077%3c0437:TNYRP%3e2.0.CO;2
Li WL, Wang KL, Fu SM et al (2008) The Interrelationship between regional westerly index and the water vapor budget in Northwest China. J Glaciol Geocryol 2008:28–34
Li QX, Dong WJ, Li W et al (2010) Assessment of the uncertainties in temperature change in China during the last century(in Chinese). Chin Sci Bull 55:1974–1982. https://doi.org/10.1007/s11434-010-3209-1
Li ZQ, Wang Y, Guo JP et al (2019) East Asian study of tropospheric aerosols and their impact on regional clouds, precipitation, and climate (EAST-AIR(CPC)). J Geophys Res Atmos 124:13026–13054. https://doi.org/10.1029/2019JD030758
Ma ZG, Fu CB (2001) Trend of surface humid index in the arid area of Northren China (in Chinese). Acta Meteorol Sin 2001:737–746
Ma ZG, Fu CB, Yang Q et al (2018) Drying trend in northern china and its shift during 1951–2016 (in Chinese). Chin J Atmos Sci 42:951–961. https://doi.org/10.3878/j.issn.1006-9895.1802.18110
Narisma GT, Foley JA, Licker R et al (2007) Abrupt changes in rainfall during the twentieth century. Geophys Res Lett 34:L06710. https://doi.org/10.1029/2006GL028628
Nicholson SE (2001) Climatic and environmental change in Africa during the last two centuries. Clim Res 17:123–144. https://doi.org/10.3354/cr017123
Nicholson SE, Tucker CJ, Ba MB (1998) Desertification, drought, and surface vegetation: an example from the West African sahel. Bull Am Meteorol Soc 79:815–829. https://doi.org/10.1175/1520-0477(1998)079%3c0815:DDASVA%3e2.0.CO;2
O’Neill BC, Tebaldi C, van Vuuren DP et al (2016) The scenario model intercomparison project (ScenarioMIP) for CMIP6. Geosci Model Dev 9:3461–3482. https://doi.org/10.5194/gmd-9-3461-2016
Paredes P, Fontes JC, Azevedo EB et al (2018) Daily reference crop evapotranspiration in the humid environments of Azores islands using reduced data sets: accuracy of FAO-PM temperature and Hargreaves-Samani methods. Theor Appl Climatol 134:595–611. https://doi.org/10.1007/s00704-017-2295-2
Peng DD, Zhou TJ (2017) Why was the arid and semiarid northwest China getting wetter in the recent decades? J Geophys Res Atmos. https://doi.org/10.1002/2016JD026424
Polson D, Hegerl GC (2017) Strengthening contrast between precipitation in tropical wet and dry regions. Geophys Res Lett 44:365–373. https://doi.org/10.1002/2016GL071194
Qing DH, Ding YH, Wang SW (2003) Ecological and environmental change in West China and its response strategy (in Chinese). Adv Earth Sci 2003:314–319
Sabade SS, Kulkarni A (2011) Kripalani RH (2011) Projected changes in South Asian summer monsoon by multi-model global warming experiments. Theor Appl Climatol 103:543–565. https://doi.org/10.1007/s00704-010-0296-5
Shang SS, Zhu GF, Li RL et al (2020) Decadal change in summer precipitation over the east of Northwest China and its associations with atmospheric circulations and sea surface temperatures. Int J Climatol 40:3731–3747. https://doi.org/10.1002/joc.6424
Shi YF, Shen YP, Hu RJ (2002) Preliminary study on signal, impact and foreground of climatic shift from warm dry to warm humid in Northwest China (in Chinese). J Glaciol Geocryol. https://doi.org/10.3969/j.issn.1000-0240.2002.03.001
Shi YF, Shen YP, Li DL (2003) Discussion on the present climate change from warm-dry to warm-wet in Northwest China (in Chinese). Quat Sci. https://doi.org/10.3321/j.issn:1001-7410.2003.02.005
Song LC, Zhang CJ (2003) Changing Features of precipitation over Nothwest China during the 20th century (in Chinese). J Glaciol Geocryol 2003:143–148
Sun Y, Ding YH (2011) Responses of South and East Asian summer monsoons to different land-sea temperature increases under a warming scenario. Chin Sci Bull 56:2424–2433. https://doi.org/10.1007/s11434-011-4602-0
Tang X, Chen BD, Liang P et al (2009) Definition and features of the north edge of Asian summer monsoon(in Chinese). Acta Meteorol Sin 67:83–89
Wang ZT (1991) The glacier and environment in the middle sector of Tianshan and the eastern sector of Qilianshan since the little ice age(in Chinese). Acta Geogr Sin 1991:160–168
Wang SW, Dong GR (2002) Environmental features and evolution in Western China. China Science Press, Beijing
Wang B, Fan Z (1999) Choice of South Asian summer monsoon indices. Bull Am Meteorol Soc 80:629–638. https://doi.org/10.1175/1520-0477(1999)080%3c0629:COSASM%3e2.0.CO;2
Wang KL, Jiang H, Wu H (2001) Analysis on characteristics of interannual variability of the South Asian summer Monsoon (in Chinese). Plateau Meteorol 20:318–324
Wang CH, ZangLi SNKC et al (2021) Change characteristics of precipitation in Northwest China from 1961 to 2018 (in Chinese). Chin J Atmos Sci 45:713–724. https://doi.org/10.3878/j.issn.1006-9895.2101.20216
Wu ZH, Huang NE (2009) Ensemble empirical mode decomposition: a noise-assisted data analysis method. Adv Adapt Data Anal 01:1–41. https://doi.org/10.1142/S1793536909000047
Xie JN, Zhou JL (2001) A Preliminary study on trends and interannual variaration of precipitation in Central and Western portions of Northwest Region of China (in Chinese). Plateau Meteorol 2001:362–367
Xu GC (1997) Climate change in arid and semi-arid regions of China. China Meteorological Press, Beijing
Yang S, Li QX (2014) Improvement in homogeneity analysis method and update of china precipitation data (in Chinese). Progress Inquisitiones Mutat Clim 10:276–281. https://doi.org/10.3969/j.issn.1673-1719.2014.04.008
Yang HQ, Xu JH, Chen YN et al (2020) Has the Bosten lake basin been dry or wet during the climate transition in northwest China in the past 30 years. Theor Appl Climatol 141:627–644. https://doi.org/10.1007/s00704-020-03209-0
Yang JH, Zhang Q, Lu GY et al (2021) Climate transition from warm-dry to warm-wet in Eastern Northwest China. Atmosphere 12:548. https://doi.org/10.3390/atmos12050548
Yao XY, Zhang MJ, Zhang Y et al (2021) New understanding of climate transition in northwest China (in Chinese). Arid Land Geogr. https://kns.cnki.net/kcms/detail/65.1103.X.20211018.1255.004.html
Ye DZ, Huang RH (1991) Advances, results and problems of the project “investigation on laws, causes and prediction of droughts and floods in the yellow river valley and the Yangtze River valley of China(in Chinese). Adv Earth Sci 1991:24–29
Zhai PM, Ren FM (1999) Detection of trends in China’s precipitation extremes(in Chinese). Acta Meteorol Sin 1999:81–89
Zhang YC, Guo LL (2010) Multi-model ensemble simulated changes in the subtropical westerly jet over east Asia under the global warming condition(in Chinese). Sci Meteorol Sin 30:694–700
Zhang Q, Hu YQ, Cao XY et al (2000) On Some problems of arid climate system of Northwest China(in Chinese). J Desert Res 2000:13–18
Zhang CJ, Li DL, Wang XP (2004) Study on precipitation variability in last 100 Years and trend prediction in Northeast Asia in future 10–15 Years(in Chinese). Plateau Meteorol 2004:919–929
Zhang Q, Zhang CJ, Bai HZ (2010) New development of climate change in Northwest China and its impact on arid environment. J Arid Meteorol 28:1–7. https://doi.org/10.3969/j.issn.1006-7639.2010.01.001
Zhang HL, Zhang Q, Yue P (2016) Aridity over a semiarid zone in northern China and responses to the East Asian summer monsoon: aridity response to Easm margin. J Geophys Res Atmospheres 121:13901–13918. https://doi.org/10.1002/2016JD025261
Zhang M, Yu HP, Huang JP et al (2019a) Comparison of extreme temperature response to 0.5°C additional warming between dry and humid regions over East-Central Asia. Int J Climatol 39:3348–3364. https://doi.org/10.1002/joc.6025
Zhang Q, Lin JJ, Liu WC et al (2019b) Precipitation seesaw phenomenon and its formation mechanism in the eastern and western parts of Northwest China during the flood season. Sci China Earth Sci 62:2083–2098. https://doi.org/10.1007/s11430-018-9357-y
Zhang Q, Yue P, Zhang L et al (2019c) Land-atmosphere interaction over the summer monsoon transition zone in China: a review and prospects. Acta Meteorol Sin 77:758–773. https://doi.org/10.11676/qxxb2019.038
Zhang M, Yu HP, King AD et al (2020) Greater probability of extreme precipitation under 1.5 °C and 2°C warming limits over East-Central Asia. Clim Change 162:603–619. https://doi.org/10.1007/s10584-020-02725-2
Zhang Q, Yang JH, Wang W et al (2021) Climatic warming and humidification in the arid region of Northwest China: multi-scale characteristics and impacts on ecological vegetation. J Meteor Res 35:113–127. https://doi.org/10.1007/s13351-021-0105-3
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We thank International Science Editing (http://www.internationalscienceediting.com) for editing this manuscript. This research was supported by the National Natural Science Foundation of China (41630426, 41975016), the Natural Science Foundation and the Basic Research Innovation Group Project of Gansu Province (21JR7RA706, 20JR5RA121), and the Innovation and Development Project of China Meteorological Administration (CXFZ2022J049, CXFZ2021J054).
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Zhang, Q., Yang, J., Duan, X. et al. The eastward expansion of the climate humidification trend in northwest China and the synergistic influences on the circulation mechanism. Clim Dyn 59, 2481–2497 (2022). https://doi.org/10.1007/s00382-022-06221-4
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DOI: https://doi.org/10.1007/s00382-022-06221-4