Journal of Geographical Sciences >
Trend in pan evaporation and its attribution over the past 50 years in China
Received date: 2009-05-18
Revised date: 2009-08-10
Online published: 2010-08-15
Supported by
Innovation Knowledge Project of the Chinese Academy of Sciences, No.KZCX2-YW-448; National Key Technology R&D Program, No.2007BAC03A06-01
Trends in pan evaporation are widely relevant to the hydrological community as indicators of hydrological and climate change. Pan evaporation has been decreasing in the past few decades over many large areas with differing climates globally. This study analyzes pan evaporation data from 671 stations in China over the past 50 years in order to reveal the trends of it and the corresponding trend attribution. Mann-Kendall test shows a significant declining trend in pan evaporation for most stations, with an average decrease of 17.2 mm/10a in China as a whole, the rate of decline was the steepest in the humid region (29.7 mm/10a), and was 17.6 mm/10a and 5.5 mm/10a in the semi-humid/semi-arid region and arid region, respectively. Complete correlation coefficients of pan evaporation with 7 climate factors were computed, and decreases in diurnal temperature range (DTR), SD (sunshine duration) and wind speed were found to be the main attributing factors in the pan evaporation declines. Decrease in DTR and SD may relate to the increase of clouds and aerosol as well as the other pollutants, and decrease in wind speed to weakening of the Asian winter and summer monsoons under global climate warming.
LIU Min, SHEN Yanjun, ZENG Yan, LIU Changming . Trend in pan evaporation and its attribution over the past 50 years in China[J]. Journal of Geographical Sciences, 2010 , 20(4) : 557 -568 . DOI: 10.1007/s11442-010-0557-3
[1] An Gaiyue, Li Yuanhua, 2005. Change of evaporation in recent 50 years in Hebei Region. Journal of Arid Land Resources and Environment, 19(4): 159–162. (in Chinese)
[2] Brutsaert W, Parlange M B, 1998. Hydrologic cycle explains the evaporation paradox. Nature, 396: 30.
[3] Burn D H, Hesch N M, 2007. Trends in evaporation for the Canadian prairies. Journal of Hydrology, 336: 61–73.
[4] Chattopadhyay N, Hulme M, 1997. Evaporation and potential evapotranspiration in India under conditions on recent and future climate change. Agric. Forest Meteorol., 87: 55–73.
[5] Cohen S, Ianetz A, Stanhill G, 2002. Evaporative climate changes at Bet Dagan, Israel, 1964–1998. Agric. For. Meteor., 111: 83–91.
[6] Editorial Committee of Physical Geography of China CAS, 1984. Physical Geography of China: Climate. Beijing: Science Press, pp.161. (in Chinese)
[7] Guo Jun, Ren Guoyu, 2005. Recent change of pan evaporation and possible climate factors over the Huang–Huai–Hai watershed, China. Advances in Water Science, 16(5): 666–672. (in Chinese)
[8] Liu Bo, Ma Zhuguo, 2007. Area change of dry and wet region in China in the past 45 years. Arid Land Geography, 30(1): 7–15. (in Chinese)
[9] Liu Bo. Ma Zhuguo, Ding Yuguo, 2006. Characteristics of the changes in pan evaporation over northern China during the past 45 years and the relations to environment factors. Plateau Meteorology, 25(5): 840–848. (in Chinese)
[10] Liu Changming, Zheng Hongxing, 2003. Trend analysis of hydrological components in the Yellow River Basin. Journal of Natural Resources, 18(2): 129–135. (in Chinese)
[11] Ohmura A, Wild M, 2002. Is the hydrological cycle accelerating? Science, 298: 1345–2004.
[12] Peterson T C, Golubev V S, Groisman P Y, 1995. Evaporation losing its strength. Nature, 377: 687–688.
[13] Qiu Xinfa, Liu Changming, Zeng Yan, 2003. Changes of pan evaporation in the recent 40 years over the Yellow River Basin. Journal of Natural Resources, 18(4): 437–442. (in Chinese)
[14] Roderick M L, Rotstayn L D, Farquhar G D, 2007. On the attribution of changing pan evaporation. Geophysical Research Letters, 34, L17403.
[15] Roderick M L, Farquhar G D, 2005. Changes in New Zealand pan evaporation since the1970s. Int. J. Climatol., 25: 2031–2039.
[16] Roderick M L, Farquhar G D, 2004. Changes in Australian pan evaporation from 1970 to 2002. Int. J. Climatol., 24(9): 1077–1090.
[17] Roderick M L, Farquhar G D, 2002. The cause of decreased pan evaporation over the past 50 years. Science, 298: 1410–1411.
[18] Shanghai Normal University, Jilin Normal University, Beijing Normal University et al., 1979. Physical Geography of China. Beijing: People’s Education Press, 148. (in Chinese)
[19] Shen Yanjun, Liu Changming, Liu Min et al., 2010. Change in pan evaporation over past 50 years in the arid region of China. Hydrological Processes, 24: 225-231.
[20] Sun Fubao, 2007. Study on watershed evapotranspiration based on the Budyko Hypothesis. PhD Dissertation, Tsinghua University. (in Chinese)
[21] Su Hongchao, Wei Wenshou, Han Ping, 2003. Changes in air temperature and evaporation in Xinjiang during recent 50 years. Journal of Glaciology and Geocryology, 25(2): 174–178. (in Chinese)
[22] Wang Yanjun, Jiang Tong, Xu Chongyu, 2006. Spatial-temporal change of 20cm pan evaporation over the Yangtze River Basin. Advances in Water Science, 17(6): 830–833. (in Chinese)
[23] Wang Huijun, 2001. The weakening of the Asian monsoon circulation after the end of 1970’s. Adv. Atmos. Sci., 18: 376–38.
[24] Wang Zunya, Ding Yihui, He Jinhai et al., 2004. An updating analysis of the climate change in China in recent 50 years. Acta Meteorologica Sinica, 62(2): 228–236. (in Chinese)
[25] Yang Jianping, Ding Yongjian, Chen Rensheng et al., 2002. The interdecadal fluctuation of dry and wet climate boundaries in China in recent 50 years. Acta Geographica Sinica, 57(6): 655–661. (in Chinese)
[26] Yue S, Pilon P, Phinney B et al., 2002. Power of the Mann–Kendall and Spearman’s rho tests for detecting monotonic trends in hydrological series. J. Hydrology, 259: 254–271.
[27] Zeng Yan, Qiu Xinfa, Liu Changming et al., 2007. Changes of pan evaporation in China in 1960–2000. Advances in Water Science, 18(3): 311–318. (in Chinese)
[28] Zuo Hongchao, Li Dongliang, Hu Yinjiao, 2005. Change trend of climate in China over the past 40 years and its relationship with the change of pan evaporation. Chinese Science Bulletin, 50(11): 1125–1130. (in Chinese)
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