Significant urbanization effect on decline of near-surface wind speed at Shijiazhuang station

doi:10.12006/j.issn.1673-1719.2017.030

Abstract

Abstract:

Based on data of the surface wind speed at Shijiazhuang city meteorological station (simplified as Shijiazhuang station) and four rural meteorological stations during 1972-2012, urbanization effect on the surface wind speed series at Shijiazhuang station was analyzed using an urban-rural difference method. The results showed that: (1) In 1972-2012, there were very significant decreased trends on annual and seasonal mean wind speeds, mean maximum wind speeds of 10 min and gale days at Shijiazhuang station, and the annual mean decreased trends were -0.15 (m/s)/10a, -1.05 (m/s)/10a and -2.90 d/10a respectively. Annual mean wind speed of rural stations showed weakly decreased trend, the decreased trend on annual mean maximum wind speed of 10 min was more obvious, and the decreased trend on annual gale days was very significant. The decreased trends on annual mean wind speed, annual mean maximum wind speed of 10 min and annual gale days at rural stations were -0.02 (m/s)/10a, -0.21 (m/s)/10a, and 2.19 d/10a, respectively; (2) In the study period, urbanization effect on the annual mean wind speed at Shijiazhuang station was -0.13 (m/s)/10a, which was very significant, and the urbanization contribution reached 86.0%, indicating that the urbanization effect is large and significant. Urbanization effect on the mean wind speeds of the urban station in spring, summer, autumn and winter were -0.16 (m/s)/10a, -0.10 (m/s)/10a, -0.13 (m/s)/10a and -0.15 (m/s)/10a respectively, and the urbanization contributions were 82.8%, 87.6%, 88.6% and 85.4%, respectively; (3) Urbanization effect on the annual mean maximum wind speed of 10 min at the urban station was -0.84 (m/s)/10a, and the urbanization contribution was 79.7%. Urbanization effects on the seasonal mean maximum wind speed of 10 min were -0.94 (m/s)/10a, -0.80 (m/s)/10a, -0.60 (m/s)/10a and -1.01 (m/s)/10a, respectively for spring, summer, autumn and winter, with the urbanization contributions of 90.4%, 78.6%, 64.9% and 79.1%, respectively; (4) Urbanization effect on the annual gale days at Shijiazhuang station was not significant, but the urbanization effect on the winter gale days was large and significant.

Key words: Surface wind speed, Trend, Urbanization effect, Urbanization contribution, Shijiazhuang

Tao BIAN, Guo-Yu REN, Li-Xia ZHANG. Significant urbanization effect on decline of near-surface wind speed at Shijiazhuang station[J]. Climate Change Research, 2018, 14(1): 21-30.

Figures/Tables 10

Table 1 Information of the stations used in the study

Fig. 1 Annual mean near-surface wind speed of Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Table 2 Linear trends of annual and seasonal mean near-surface wind speed, 10 min maximum wind speed and gale days of Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Fig. 2 Annual mean near-surface 10 min maximum wind speed of Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Fig. 3 Annual gale days of Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Fig. 4 Difference series of annual mean near-surface wind speed between Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Table 3 Urbanization effects and contributions in the annual and seasonal mean near-surface wind speed, 10 min maximum wind speed and gale days at Shijiazhuang station during 1972-2012

Fig. 5 Difference series of annual mean 10 min maximum wind speed between Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Fig. 6 Difference series of annual mean gale days between Shijiazhuang station and the surrounding 4 rural stations during 1972-2012

Table 4 Linear trends of annual mean near-surface wind speed of Shijiazhuang station and the surrounding 4 rural stations during 1972-2012, and the comparison to those of mainland China and North China during 1954-2000 [1] (m/s)/10a

References

[1]	王遵娅, 丁一汇, 何金海, 等. 近50年来中国气候变化特征的再分析[J]. 气象学报, 2004, 62(2): 228-236
[2]	任国玉, 郭军, 徐铭志, 等. 近50年中国地面气温变化基本特征[J]. 气象学报, 2005, 63(6): 942-956
[3]	Xu M, Chang C P, Fu C B.Steady decline of east Asian monsoon winds, 1969-2000: evidence from direct ground measurements of wind speed[J]. Journal of Geophysical Research, 2006, 111: 1-8
[4]	荣艳淑, 梁嘉颖. 华北地区风速变化的分析[J]. 气象科学, 2008, 28(6): 655-658
[5]	Jiang Y, Luo Y, Zhao Z, et al. Changes in wind speed over China during 1956-2004[J]. Theoretical and Applied Climatology, 2010, 99: 421-430
[6]	Li Z, Yan Z W, Tu K, et al. Changes in wind speed and extremes in Beijing during 1960-2008 based on homogenized observations[J]. Advances in Atmospheric Sciences, 2011, 28(2): 408-420
[7]	金巍, 任国玉, 曲岩, 等. 1971-2010东北三省地面平均风速变化[J]. 干旱区研究, 2012, 29(4): 648-653
[8]	Vautard R, Cattiaux J, Yiou P, et al. Northern Hemisphere atmospheric stilling partly attributed to an increase in surface roughness[J]. Nature Geoscience, 2010, 3: 756-761
[9]	McVicar T R, Roderick M L. Atmospheric science: winds of change[J]. Nature Geoscience, 2010, 3(11): 747-748
[10]	Pirazzoli P A, Tomasin A.Recent near-surface wind changes in the central Mediterranean and Adriatic areas[J]. International Journal of Climatology, 2003, 23(8): 963-973
[11]	Tuller S E.Measured wind speed trends on the west coast of Canada[J]. International Journal of Climatology, 2004, 24(11): 1359-1374
[12]	Wang H, Wang H L, Swail V R.Homogenization and trend analysis of Canadian near-surface wind speeds[J]. Journal of Climate, 2010, 23(5): 1209-1225
[13]	Hobbins M T, Ramírez J A, Brown T C.Trends in pan evaporation and actual evapotranspiration across the conterminous US: paradoxical or complementary?[J]. Geophysical Research Letters, 2004, 31(13), L13503
[14]	Hartmann B, Wendler G.The significance of the 1976 Pacific climate shift in the climatology of Alaska[J]. Journal of Climate, 2005, 18(22): 4824-4839
[15]	Kousari M R, Ahani H, Hakimelahi H.An investigation of near surface wind speed tends in arid and semiarid regions of Iran[J]. Theoretical and Applied Climatology, 2013, 114(1-2): 153-168
[16]	McVicar T R, Niel T G V, Li L T, et al. Wind speed climatology and trends for Australia, 1975-2006: capturing the stilling phenomenon and comparison with near-surface reanalysis output[J]. Geophysical Research Letters, 2008, 35(20): 288-299
[17]	刘学锋, 江滢, 任国玉, 等. 河北城市化和观测环境改变对地面风速观测资料序列的影响[J]. 高原气象, 2009, 28(2): 433-439
[18]	张爱英, 任国玉, 郭军, 等. 1980—2006年我国高空风速变化趋势分析[J]. 高原气象, 2009, 28(3): 680-687
[19]	赵宗慈, 罗勇, 江滢. 全球大风在减少吗[J]. 气候变化研究进展, 2011, 7(2): 149-151
[20]	于宏敏, 徐永清, 张洪玲. 黑龙江省的城市化对近地面风速变化的影响[J]. 太阳能学报, 2014, 35(9): 1797-1802
[21]	彭珍, 胡非. 北京城市化进程对边界层风场结构影响的研究[J]. 地球物理学报, 2006, 49(6): 729-732
[22]	陶寅, 黄勇, 杨元建, 等. 城市化进程对安徽省风速的影响[J]. 气候变化研究进展, 2016, 12(6): 519-526
[23]	卞韬, 任国玉, 张翠华, 等. 石家庄气象站记录的城市热岛效应及其趋势变化[J]. 南京信息工程大学学报: 自然科学版, 2012, 4(5): 402-408
[24]	Bian T, Ren G Y, Zhang B X, et al. Urbanization effect on long-term trends of extreme temperature indices at Shijiazhuang station, North China[J]. Theoretical and Applied Climatology, 2015, 119(3-4): 407-418
[25]	魏凤英. 现代气候统计诊断与预测技术 [M]. 北京 : 气象出版社, 2007: 36-41
[26]	Ren G Y, Zhou Y Q.Urbanization effect on trends of extreme temperature indices of national stations over mainland China, 1961-2008[J]. Journal of Climate, 2014, 27(6): 2340-2360
[27]	Gong D Y, Ho C H.The Siberian High and climate change over middle to high latitude Asia[J]. Theoretical and Applied Climatology, 2002, 72: 1-9
[28]	Jeong J H, Ou T, Linderholm H W, et al. Recent recovery of the Siberian High intensity[J]. Journal of Geophysical Research Atmospheres, 2011, 116: 1-9
[29]	Ding Y H, Liu Y J, Liang S J, et al. Interdecadal variability of the East Asian winter monsoon and its possible links to global climate change[J]. Journal of Meteorological Research, 2014, 28(5): 693-713