Abstract
A change in soil temperature (ST) is a significant indicator of climate change, so understanding the variations in ST is required for studying the changes of the Qinghai–Tibet Plateau (QTP) permafrost. We investigated the performance of three reanalysis ST products at three soil depths (0–10 cm, 10–40 cm, and 40–100 cm) on the permafrost regions of the QTP: the European Centre for Medium-Range Weather Forecasts interim reanalysis (ERA-Interim), the second version of the National Centers for Environmental Prediction Climate Forecast System (CFSv2), and the Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2). Our results indicate that all three reanalysis ST products underestimate observations with negative mean bias error values at all three soil layers. The MERRA-2 product performed best in the first and second soil layers, and the ERA-Interim product performed best in the third soil layer. The spatiotemporal changes of annual and seasonal STs on the QTP from 1980 to 2017 were investigated using Sen’s slope estimator and the Mann–Kendall test. There was an increasing trend of ST in the deeper soil layer, which was less than that of the shallow soil layers in the spring and summer as well as annually. In contrast, the first-layer ST warming rate was significantly lower than that of the deeper soil layers in the autumn and winter. The significantly (P < 0.01) increasing trend of the annual ST indicates that the QTP has experienced climate warming during the past 38 years, which is one of the factors promoting permafrost degradation of the QTP.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig1_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig2_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig3_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig4_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig5_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig6_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs00704-020-03149-9/MediaObjects/704_2020_3149_Fig7_HTML.png)
Similar content being viewed by others
References
Albergel C, Dutra E, Muñoz-Sabater J, Haiden T, Balsamo G, Beljaars A, de Isaksen L, Rosnay P, Sandu I, Wedi N (2015) Soil temperature at ECMWF: an assessment using ground-based observations. J Geophys Res-Atmos 120(4):2014JD022505
Bi H, Ma J, Zheng W, Zeng J (2016) Comparison of soil moisture in GLDAS model simulations and in situ observations over the Tibetan Plateau. J Geophys Res-Atmos 121:2658–2678. https://doi.org/10.1002/2015JD024131
Bosilovich M, Lucchesi R, Suarez M (2015) MERRA-2: file specification. GMAO Office Note 9 (version 1.0), 73 pp, available from http://gmao/gsfc/nasa/gov/pubs/office_notes
Chen H, Nan Z, Zhao L, Ding Y, Chen J, Pang Q (2015) Noah modelling of the permafrost distribution and characteristics in the West Kunlun area, Qinghai-Tibet Plateau, China. Permafr Periglac Process 26(2):160–174
Chen Y, Deng H, Li B, Li Z, Xu C (2014) Abrupt change of temperature and precipitation extremes in the arid region of Northwest China. Quat Int 336:35–43. https://doi.org/10.1016/j.quaint.2013.12.057
Cha DH, Lee DK, Hong SY (2008) Impact of boundary layer processes on seasonal simulation of the East Asian summer monsoon using a regional climate model. Meteorol Atmospheric Phys 100(1–4):53–72
Cheng G, Wu T (2007) Responses of permafrost to climate change and their environmental significance, Qinghai-Tibet Plateau. J Geophys Res Earth Surf 112(F2)
Davidson EA, Janssens IA (2006) Temperature sensitivity of soil carbon decomposition and feedbacks to climate change. Nature 440:165–173. https://doi.org/10.1038/nature04514
Douville H, Viterbo P, Mahfouf JF, Beljaars ACM (2000) Evaluation of the optimum interpolation and nudging techniques for soil moisture analysis using FIFE data. Mon Weather Rev 128(6):1733–1756
Dee D, Uppala S, Simmons A, Berrisford P, Poli P, Kobayashi S, Andrae U, Balmaseda M, Balsamo G, Bauer P (2011) The ERA-Interim reanalysis: configuration and performance of the data assimilation system. Q J R Meteorol Soc 137(566):553–597
Ek MB, Mitchell KE, Lin Y, Rogers E, Grunmann P, Koren V, Gayno G, Tarpley JD (2003) Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale eta model. J Geophys Res-Atmos 108(D22)
Fang X, Luo S, Lyu S (2018) Observed soil temperature trends associated with climate change in the Tibetan Plateau, 1960–2014. Theor Appl Climatol 135(1–2):169–181
Gao Z, Horton R, Wang L, Liu H, Wen J (2010) An improved force-restore method for soil temperature prediction. Eur J Soil Sci 59(5):972–981
Gelaro R, Mccarty W, Randles C, Darmenov A, Bosilovich MG, Cullather R, Buchard V, Gu W, Putman W, Schubert SD (2017) The Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2). J Clim 30(14):5419–5454
Guo D, Wang A, Li D, Hua W (2018) Simulation of changes in the near-surface soil freeze/thaw cycle using CLM4.5 with four atmospheric forcing data sets. J Geophys Res-Atmos 123(5):2509–2523
Guo D, Wang H (2016) Permafrost degradation and associated ground settlement estimation under 2 °C global warming. Clim Dyn 49(7–8):2569–2583
Hansson K, Šimůnek J, Mizoguchi M, Lundin LC, van Genuchten MT (2004) Water flow and heat transport in frozen soil. Vadose Zone J 3(2):693–704
Hu G, Zhao L, Li R, Wu X, Wu T, Xie C, Zhu X, Su Y (2019) Variations in soil temperature from 1980 to 2015 in permafrost regions on the Qinghai-Tibetan Plateau based on observed and reanalysis products. Geoderma 337:893–905
Hu G, Zhao L, Wu X, Li R, Wu T, Xie C, Pang Q, Zou D (2017) Comparison of the thermal conductivity parameterizations for a freeze-thaw algorithm with a multi-layered soil in permafrost regions. Catena 156:244–251. https://doi.org/10.1016/j.catena.2017.04.011
Huang F, Zhan W, Ju W, Wang Z (2014) Improved reconstruction of soil thermal field using two depth measurements of soil temperature. J Hydrol 519:711–719. https://doi.org/10.1016/j.jhydrol.2014.08.014
Jiang JH, Su H, Zhai C, Wu L, Minschwaner K, Mold A, Tompkins A (2015) An assessment of upper-troposphere and lower-stratosphere water vapor in MERRA, MERRA2 and ECMWF reanalyses using Aura MLS observations. J Geophys Res-Atmos 120(22). https://doi.org/10.1002/2015JD023752
Koster RD, Suarez MJ, Ducharne A, Stieglitz M, Kumar P (2000) A catchment-based approach to modeling land surface processes in a general circulation model: 1. Model structure. J Geophys Res-Atmos 105:24809–24822
Lan C, Zhang Y, Bohn TJ, Zhao L, Li J, Liu Q, Zhou B (2015) Frozen soil degradation and its effects on surface hydrology in the northern Tibetan Plateau. J Geophys Res-Atmos 120(16):8276–8298
Li R, Zhao L, Wu T, Ding Y, Xiao Y, Hu G, Zou D, Li W, Yu W, Jiao Y (2014) The impact of surface energy exchange on the thawing process of active layer over the northern Qinghai–Xizang Plateau, China. Environ Earth Sci 72(6):2091–2099
Li X, Cheng G, Lu L (2005) Spatial analysis of air temperature in the Qinghai-Tibet Plateau. Arct Antarct Alp Res 37(2):246–252
Li X, Jin R, Pan X, Zhang T, Guo J (2012) Changes in the near-surface soil freeze-thaw cycle on the Qinghai-Tibetan Plateau. Int J Appl Earth Obs Geoinf 17:33–42
Liu C, Yu Y, Xie J, Zhou X, Li J, Ge J (2015) Applicability of soil temperature and moisture in several datasets over Qinghai-Xizang Plateau. Plateau Meteorol 34(3):653–665
Luo D, Jin H, Jin R, Yang X, Lu L (2014) Spatiotemporal variations of climate warming in northern Northeast China as indicated by freezing and thawing indices. Quat Int 349(187–195):187–195
Luo D, Jin H, He R, Wang X, Muskett RR, Marchenko SS, Romanovsky VE (2018a) Characteristics of water-heat exchanges and inconsistent surface temperature changes at an elevational permafrost site on the Qinghai-Tibet Plateau. J Geophys Res Atmospher 123(18):10,057–010,075. https://doi.org/10.1029/2018JD028298
Luo D, Jin H, Jin X, He R, Li X, Muskett RR, Marchenko SS, Romanovsky VE (2018b) Elevation-dependent thermal regime and dynamics of frozen ground in the Bayan Har Mountains, northeastern Qinghai-Tibet Plateau, Southwest China. Permafr Periglac Process 29(4):257–270
Luo D, Jin H, Wu Q, Bense VF, He R, Ma Q, Gao S, Jin X, Lv L (2018c) Thermal regime of warm-dry permafrost in relation to ground surface temperature in the source areas of the Yangtze and Yellow rivers on the Qinghai-Tibet Plateau, SW China. Sci Total Environ 618:1033–1045
Luo D, Liu L, Jin H, Wang X, Chen F (2020) Characteristics of ground surface temperature at Chalaping in the source area of the Yellow River, northeastern Tibetan Plateau. Agric For Meteorol 281:107819
Mann HB (1945) Nonparametric tests against trend. J Econometric Soc 13(3):245–259
Ma L, Zhang T, Li Q, Frauenfeld OW, Qin D (2008) Evaluation of ERA-40, NCEP-1, and NCEP-2 reanalysis air temperatures with ground-based measurements in China. J Geophys Res-Atmos 113(D15). https://doi.org/10.1029/2007JD009549
Ma L, Zhang T, Frauenfeld OW, Ye B, Yang D, Qin D (2009) Evaluation of precipitation from the ERA-40, NCEP-1, and NCEP-2 reanalyses and CMAP-1, CMAP-2, and GPCP-2 with ground-based measurements in China. J Geophys Res-Atmos 114:D09105. https://doi.org/10.1029/2008JD011178
McGuire AD et al (2016) Variability in the sensitivity among model simulations of permafrost and carbon dynamics in the permafrost region between 1960 and 2009. Glob Biogeochem Cycles 30(7):1015–1037
Mellander PE, Löfvenius MO, Laudon H (2007) Climate change impact on snow and soil temperature in boreal Scots pine stands. Clim Chang 85(1–2):179–193
Molod A, Takacs L, Suarez M, Bacmeister J, Song IS, Eichmann A (2015) Development of the GEOS-5 atmospheric general circulation model: evolution from MERRA to MERRA2. Geosci Model Dev 8(5):1339–1356
Oelke C, Zhang T (2004) A model study of circum-Arctic soil temperatures. Permafr Periglac Process 15(2):103–121
Peng XQ, Zhang T, Frauenfeld OW, Wang K, Cao B, Zhong X, Su H, Mu C (2017) Response of seasonal soil freeze depth to climate change across China. Cryosphere 11:1059–1073
Peng XQ, Frauenfeld OW, Cao B, Wang K, Wang HJ, Su H, Huang Z, Yue DX, Zhang TJ (2016) Response of changes in seasonal soil freeze/thaw state to climate change from 1950 to 2010 across China. J Geophys Res Earth Surf 121:1984–2000. https://doi.org/10.1002/2016JF003876
Sen PK (1968) Estimate of the regression coefficient based on Kendall’s tau. J Am Stat Assoc 63(324):1379–1389
Qian B, Gregorich EG, Gameda S, Hopkins DW, Wang XL (2011) Observed soil temperature trends associated with climate change in Canada. J Geophys Res-Atmos 116(D2):1–16
Qin Y, Wu T, Ren L, Yu W, Wang T, Zhu X, Wang W, Hu G, Tian L (2016) Using ERA–Interim reanalysis dataset to assess the changes of ground surface freezing and thawing condition on the Qinghai–Tibet Plateau. Environ Earth Sci 75(9): 826-838, https://doi.org/10.1007/s12665-016-5633-2
Qin Y, Wu T, Wu X, Li R, Xie C, Qiao Y, Hu G, Zhu X, Wang W, Shang W (2017a) Assessment of reanalysis soil moisture products in the permafrost regions of the central of the Qinghai-Tibet Plateau. Hydrol Process 31(26):4647–4659
Qin Y, Wu T, Zhao L, Wu X, Li R, Xie C, Pang Q, Hu G, Qiao Y, Zhao G (2017b) Numerical modeling of the active layer thickness and permafrost thermal state across Qinghai-Tibetan Plateau. J Geophys Res-Atmos 122(21):11604–11620
Rienecker MM, Suarez MJ, Todling R, Bacmeister J, Takacs L, Liu HC, Gu W, Sienkiewicz M, Koster R.D, Gelaro R, Stajner I, Nielsen JE (2008) The GEOS-5 data assimilation system: documentation of versions 5.0.1, 5.1.0, and 5.2.0. NASA technical report series on global modeling and data assimilation 27. https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120011955.pdf
Rienecker MM, Suarez MJ, Gelaro R, Todling R, Bacmeister J, Liu E, Bosilovich MG, Schubert SD, Takacs L, Kim GK, Bloom S, Chen J, Collins D, Conaty A, Silva A, Gu W, Joiner J, Koster RD, Koster R, Molod A, Owens T, Pawson S, Pegion P, Redder CR, Reichle R, Robertson FR, Ruddick AG, Sienkiewicz M, Woollen J (2011) MERRA: NASA’s Modern-Era Retrospective Analysis for Research and Applications. J Clim 24(14):3624–3648
Robock A, Vinnikov KY, Srinivasan G, Entin JK, Hollinger SE, Speranskaya NA, Liu S, Namkhai A (2000) The global soil moisture data bank. Bull Am Meteorol Soc 81(6):1281–1299
Romanovsky VE, Drozdov DS, Oberman NG, Malkova GV, Kholodov AL, Marchenko SS, Moskalenko NG, Sergeev DO, Ukraintseva NG, Abramov AA, Gilichinsky DA, Vasiliev AA (2010) Thermal state of permafrost in Russia. Permafr Periglac Process 21(2):136–155
Saha S, Moorthi S, Pan HL, Wu XR, Wang JD, Nadiga S, Tripp P, Kistler R, Woollen J, Behringer D (2010) The NCEP Climate Forecast System reanalysis. Bull Am Meteorol Soc 91(8):1015–1057
Saha S, Moorthi S, Wu X, Wang J, Nadiga S, Tripp P, Behringer D, Hou YT, Chuang HY, Iredell M (2012) The NCEP Climate Forecast System version 2. J Clim 27(6):2185–2208
Saha S, Moorthi S, Wu X, Wang J, Nadiga S, Tripp P, Behringer D, Hou Y, Chuang H, Iredell M, Ek M, Meng J, Yang R, Mendez M, Dool H, Zhang Q, Wang W, Chen M, Becker E (2014) The NCEP Climate Forecast System version 2. J Clim 27(6):2185–2208
Simmons A, Uppala S, Dee D, Kobayashi S (2007) ERA-Interim: new ECMWF reanalysis products from 1989 onwards. ECMWF newsletter 110:25–35
Su Z, Wen J, Dente L, Velde RV, Wang L, Ma Y, Yang K, Hu Z (2011) The Tibetan Plateau observatory of plateau scale soil moisture and soil temperature (Tibet-Obs) for quantifying uncertainties in coarse resolution satellite and model products. Hydrol Earth Syst Sci 15(7):2303–2316
Wang A, Zeng X (2012) Evaluation of multireanalysis products with in situ observations over the Tibetan Plateau. J Geophys Res-Atmos 117:D05102. https://doi.org/10.1029/2011JD016553
Wang C, Yang K (2018) A new scheme for considering soil water-heat transport coupling based on community land model: model description and preliminary validation. J Adv Model Earth Sys 10:927–950. https://doi.org/10.1002/2017MS001148
Wang C, Wang Z, Kong Y, Zhang FM, Yang K, Zhang TJ (2019) Most of the Northern Hemisphere permafrost remains under climate change. Sci Rep 9(1):3295
Wang G, Hu H, Li T (2009) The influence of freeze-thaw cycles of active soil layer on surface runoff in a permafrost watershed. J Hydrol 375(3–4):438–449
Wang SL, Jin HJ, Li SX, Zhao L (2000) Permafrost degradation on the Qinghai–Tibet Plateau and its environmental impacts. Permafr Periglac Process 11(1):43–53
Wang X, Yang M, Liang X, Pang G, Wan G, Chen X, Luo X (2014) The dramatic climate warming in the Qaidam Basin, northeastern Tibetan Plateau, during 1961–2010. Int J Climatol 34(5):1524–1537
Wang Y, Chen W, Zhang J, Nath D (2013) Relationship between soil temperature in may over Northwest China and the East Asian summer monsoon precipitation. J Meteorol Res 27(5):716–724
Willmott CJ (1982) Some comments on the evaluation of model performance. Bull Am Meteorol Soc 63(11):1309–1369
Wu Q, Zhang T, Liu Y (2010) Permafrost temperatures and thickness on the Qinghai-Tibet Plateau. Glob Planet Chang 72(1–2):32–38
Wu T, Wang Q, Zhao L, Batkhishig O, Watanabe M (2011) Observed trends in surface freezing/thawing index over the period 1987–2005 in Mongolia. Cold Reg Sci Technol 69(1):105–111
Wu T, Qin Y, Wu X, Li R, Zou D, Xie C (2018a) Spatiotemporal changes of freezing/thawing indices and their response to recent climate change on the Qinghai–Tibet Plateau from 1980 to 2013. Theor Appl Climatol 132(3–4):1187–1199
Wu T, Lin Z, Ren L, Wang Q, Xie C, Pang Q (2013) Recent ground surface warming and its effects on permafrost on the central Qinghai–Tibet Plateau. Int J Climatol 33(4): 920–930
Wu X, Nan Z, Zhao S, Zhao L, Cheng G (2018b) Spatial modeling of permafrost distribution and properties on the Qinghai-Tibet Plateau. Permafr Periglac Process 29(2):86–99
Wu X, Zhao L, Hu G, Liu G, Li W, Ding Y (2017) Permafrost and land cover as controlling factors for light fraction organic matter on the southern Qinghai-Tibetan Plateau. Sci Total Environ 613–614:1165–1174
Wu WS, Purser RJ, Parrish DF (2002) Three-dimensional variational analysis with spatially inhomogeneous covariances. Mon Weather Rev 130(12):2905–2916
Xiao Y, Zhao L, Dai Y, Li R, Pang Q, Yao J (2013) Representing permafrost properties in CoLM for the Qinghai–Xizang (Tibetan) Plateau. Cold Reg Sci Technol 87:68–77. https://doi.org/10.1016/j.coldregions.2012.12.004
Xie P, Chen M, Yatagai A, Hayasaka T, Fukushima Y, Yang S (2007) A gauge-based analysis of daily precipitation over East Asia. J Hydrometeorol 8(3):607–626
Yang K, Wu H, Qin J, Lin C, Tang W, Chen Y (2014) Recent climate changes over the Tibetan Plateau and their impacts on energy and water cycle: a review. Glob Planet Chang 112:79–91. https://doi.org/10.1016/j.gloplacha.2013.12.001
Yang K, Zhang J (2018) Evaluation of reanalysis datasets against observational soil temperature data over China. Clim Dyn 50(1–2):317–337
Yang K, Wang C, Li S (2018) Improved simulation of frozen-thawing process in land surface model (CLM4.5). J Geophys Res-Atmos 123:238–258. https://doi.org/10.1029/2017JD028260
Yang K, Wang C (2019) Water storage effect of soil freeze-thaw process and its impacts on soil hydro-thermal regime variations. Agric For Meteorol 265:280–294. https://doi.org/10.1016/j.agrformet.2018.11.011
Yang M, Yao T, Gou X, Tang H (2007) Water recycling between the land surface and atmosphere on the northern Tibetan Plateau—a case study at flat observation sites. Arct Antarct Alp Res 39(4):694–698
Yang M, Nelson FE, Shiklomanov NI, Guo D, Wan G (2010) Permafrost degradation and its environmental effects on the Tibetan Plateau: a review of recent research. Earth-Sci Rev 103(1–2):31–44
Yeşilırmak, Ercan (2014) Soil temperature trends in Büyük Menderes Basin, Turkey. Meteorol Appl 21(4):859–866
You Q, Fraedrich K, Ren G, Ye B, Meng X, Kang S (2012) Inconsistencies of precipitation in the eastern and central Tibetan Plateau between surface adjusted data and reanalysis. Theor Appl Climatol 109(3–4):485–496
You Q, Kang S, Pepin N, Wolfgang-Albert F (2010) Relationship between temperature trend magnitude, elevation and mean temperature in the Tibetan Plateau from homogenized surface stations and reanalysis data. Glob Planet Chang 71(1–2):124–133
You Q, Fraedrich K, Ren G, Pepin N, Kang S (2013) Variability of temperature in the Tibetan Plateau based on homogenized surface stations and reanalysis data. Int J Climatol 3(6):1337–1347
Yu SG (2003) Research of sustainable development in Yangtze River Basin. Beijing: Science Press (in Chinese)
Zeng J, Li Z, Chen Q, Bi H, Qiu J, Zou P (2015) Evaluation of remotely sensed and reanalysis SM products over the Tibetan Plateau using in-situ observations. Remote Sens Environ 163:91–110. https://doi.org/10.1016/j.rse.2015.03.008
Zhang T, Barry RG, Gilichinsky D, Bykhovets SS, Sorokovikov VA, Ye J (2001) An amplified signal of climatic change in soil temperatures during the last century at Irkutsk, Russia. Clim Chang 49(1–2):41–76
Zhang W, Li S, Pang Q (2008a) Variation characteristics of soil temperature over Qinghai-Xizang Plateau in the past 45 years. Acta Geograph Sin 63(11):1151–1159
Zhang J, Wang WC, Wei J (2008b) Assessing land-atmosphere coupling using soil moisture from the Global Land Data Assimilation System and observational precipitation. J Geophys Res-Atmos 113(D17):D17119
Zhao L, Wu QB, Marchenko SS, Sharkhuu N, Lewkowicz AG (2010) Thermal state of permafrost and active layer in Central Asia during the International Polar Year. Permafr Periglac Process 21(2):198–207
Zhao L, Li R, Ding Y, Xiao Y, Sun L, Liu Y (2011) Soil thermal regime in Qinghai-Tibet Plateau and its adjacent regions during 1977-2006. Adv Clim Chang Res 7(5):307–316
Zhao T, Guo W, Fu C (2008) Calibrating and evaluating reanalysis surface temperature error by topographic correction. J Clim 21(6):1440–1446
Zhou LT, Du Z (2016) Regional differences in the surface energy budget over China: an evaluation of a selection of CMIP5 models. Theor Appl Climatol 124(1–2):241–266
Zhu F, Lan C, Zhasng Y, Xiao Y, Sun L, Liu Y (2017) Spatiotemporal variations of annual shallow soil temperature on the Tibetan Plateau during 1983–2013. Clim Dyn 51(5–6):2209–2227
Zou D, Zhao L, Sheng Y, Chen J, Hu G, Wu T, Wu J, Xie C, Wu X, Pang Q (2016) A new map of the permafrost distribution on the Tibetan Plateau. Cryosphere 11(6):2527
Acknowledgments
The authors thank the European Centre for Medium-Range Weather Forecasts, the Environmental Modeling Center at National Centers for Environmental Prediction, and the National Aeronautics and Space Administration Goddard Space Flight Center for providing the reanalysis datasets for this study. The authors also thank the Cryosphere Research Station on Qinghai–Xizang Plateau, the State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, and the Chinese Academy of Sciences for providing the observations for this study. Finally, we thank the reviewers, whose comments and suggestions helped improve the paper substantially. We also thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.
Funding
This work was jointly supported by the State Key Laboratory of Cryosphere Science (grant number SKLCS-OP-2019-06); the Key Research and Development Program of Shandong Province (grant number 2019GGX101064); the Open Fund of Innovation Institute for Sustainable Maritime Architecture Research and Technology, Qingdao University of Technology (grant number 201812007); and the Lixian Scholar Project of Qingdao University of Technology.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher’s note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Qin, Y., Liu, W., Guo, Z. et al. Spatial and temporal variations in soil temperatures over the Qinghai–Tibet Plateau from 1980 to 2017 based on reanalysis products. Theor Appl Climatol 140, 1055–1069 (2020). https://doi.org/10.1007/s00704-020-03149-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00704-020-03149-9