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28 April 2021, Volume 37 Issue 2 Previous Issue    Next Issue

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Comparative analysis of strength variation of double typhoons of "Nesat" and "Haitang" after landing in Fujian province Xiao-hong LIN,Yi-yong CAI,Mei HAN,Hong GUO,Tong-yi LIU 2021, 37 (2):  1-11.  doi: 10.3969/j.issn.1673-503X.2021.02.001 Abstract ( 772 )   HTML ( 30 )   PDF (11584KB) ( 139 )   Save Base on the reanalysis data of the National Centers for Environmental Prediction (NCEP), the strength variations of the double typhoons of "Nesat" (1709) and "Haitang" (1710) after successively landing in Fujian province in 2017 were diagnosed and comparatively analyzed.The results show that the strength variation of water vapor transport at low latitudes is the main reason for the strength difference of the double typhoons.The equatorial crossing airflow plays a key role in water vapor transport.The intensity of subtropical westerly jet is consistent with that of the mid-low level wind field, and the rapid enhancement of subtropical westerly jet is accompanied by an enhancement in the mid-low level easterly wind, which are the reason for the strength of "Haitang" typhoon remains unchanged, whereas that of "Nesat" typhoon decreases rapidly.The effect of double typhoons plays an important role in the strength variation.When the double typhoons close to and interact with each other, the residual circulation of the "Nesat" typhoon is involved in the circulation of the "Haitang" typhoon, which transports a positive vorticity factor and baroclinic energy to "Haitang" typhoon.After the typhoon' landing, the value of vertical wind shear of three different layers shows a consistent decreasing trend.When it is below 6 m·s-1, it is favorable for the long-term maintenance on land for the weak typhoon "Haitang".The coastal Frontogenesis and thermodynamic factors of sea surface flux play an important role in developing and maintaining the meso- and small-scale convection along Fujian and Guangdong provincial coasts, which aggravates the asymmetric structure of "Haitang" typhoon, and consequently promotes the strength of "Haitang" typhoon to remain unchanged. Figures and Tables | References | Related Articles | Metrics

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Characteristics of wet season over the Tibetan Plateau and its response to climate warming Di YU,Li-jun DUAN,Ting-ting WEN,Hong-yan SHEN,Qing-chun WANG,Hong-mei LI 2021, 37 (2):  12-18.  doi: 10.3969/j.issn.1673-503X.2021.02.002 Abstract ( 380 )   HTML ( 7 )   PDF (2667KB) ( 104 )   Save Basing on the daily data from the meteorological stations of the Tibetan Plateau, the characteristics of onset-to-end period and rainfall amount of the wet season were analyzed under the background of climate warming, using the method of pentad rainfall steadily passing the critical thresholds to determine the onset and end of the wet season.The characteristics of the onset-to-end time and the rainfall amount for different grades in the wet season were compared before and after warming periods in Tibetan Plateau.The results show that the wet season in Tibetan Plateau begins on the third pentad in May and ends on the sixth pentad in September.The total duration of the wet season is 28 pentads.The precipitation in the wet season concentrates from mid-June to mid-September.The three peaks occur in early July, late July, and late August, respectively.Among them, early July is the main peak in the wet season.The precipitation amounts in the wet season from 1961 to 2017 show an increasing trend in Tibetan Plateau.For spatial distribution, the precipitation amount decreases from southeast to northwest, and the precipitation amount in the Hengduan mountains located in the southeast of the plateau is most.The average temperature in the wet season increases significantly since 1997.There is an obvious difference among regions for the onset-to-end period of the wet season before and after warming.The onset of wet season delays significantly in the west part of the Plateau after warming periods.For most parts of the Plateau, the onset of wet season advances, and the end-date delays for most parts of the Plateau.After warming, the number of days that the precipitation is above the moderate rain grade increases.The extreme precipitation amount in the wet season significantly enhances, and its extent expands. Figures and Tables | References | Related Articles | Metrics

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Atmospheric circulation analysis of anomalous less precipitation over Dalian region in July of 2018 Xiu-ping WANG,Hong-bin LI,Jing-xuan ZHANG 2021, 37 (2):  19-26.  doi: 10.3969/j.issn.1673-503X.2021.02.003 Abstract ( 241 )   HTML ( 5 )   PDF (5357KB) ( 72 )   Save Based on the daily precipitation data observed by six meteorological stations in the Dalian region from 1971 to 2019, the NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) data, including monthly height field, wind field, water vapor field and other reanalysis data, and the data from 130 climate system monitoring indices compiled by the National Climate Center, the characteristics of anomalous atmospheric circulations with more or less than normal precipitation in July were analyzed using statistical diagnosis methods such as synthesis and correlation analysis.Furthermore, the observation truth and cause of anomalous less precipitation in July of 2018 over the Dalian region were studied.The results show that in July of 2018, the Dalian region is in the climate background with less precipitation.The precipitation in July of 2018 is the least during the same period since 1971.The geopotential height of the East Asia continent at 30°-50°N at 500 hPa is relatively high.From the south to the north along the east Asian coast, it presents a "negative-positive-negative" pattern.The geopotential height from North China-Northeast China-Japan Sea is a positive anomaly.The East Asian trough is easterly and weakly, and the western Pacific subtropical high (WPSH) is stronger.The position of the ridgeline and the northern boundary is abnormally northerly, and it is the most northward year for the same period in history.A deeper and warmer high pressure controls the high and low levels over the Dalian region and its stable maintenance which causes the continuous subsidence motions of airflows.At the same time, a cyclonic circulation of wind anomalies at 850 hPa dominates around the south of Japan and the Philippines, and the anomalous airflow divergence region of water vapor flux occurs in Dalian, so it is not favorable for the water vapor convergence to form precipitation.These are the main reasons for the abnormally less precipitation in the Dalian region, in which the stronger WPSH and its anomalous northward ridge line boundary in July play a key role in the anomalous less precipitation in the Dalian region. Figures and Tables | References | Related Articles | Metrics

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Seasonal variation of midsummer precipitation anomaly in Jilin province and its related atmospheric circulation characteristics Yu-fan LI,Shi-qi XU,Zhu-xiang XI,Yi-xuan QIU,Zhong-bao JIANG 2021, 37 (2):  27-32.  doi: 10.3969/j.issn.1673-503X.2021.02.004 Abstract ( 266 )   HTML ( 4 )   PDF (2063KB) ( 96 )   Save Based on the average monthly precipitation data from 46 meteorological stations in Jilin province and the NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) monthly reanalysis data, the seasonal variation of midsummer precipitation in Jilin province and its atmospheric circulation characteristics during recent 57 years were studied using the methods such as empirical orthogonal function (EOF), season-reliant EOF (SEOF), sliding correlation, regression analysis and compose analysis.The results show that the spatial pattern of precipitation in July and August is mainly consistent across the whole region.The whole region shows a positive (negative) anomaly.From 1986 to 2004, the precipitation in July and August in Jilin province demonstrates an anti-phase change, that is, more (less) in July and less (more) in August.During 2005-2017, the precipitation in July and August shows the same phase change.For out-of-phase years, the circulation anomaly is mainly related to the North American East/West (NAEW) and East Asian/Pacific (EAP) in July, while it is related to the Eurasian (EU) teleconnection pattern in August.For in-of-phase years, the pattern of circulation anomaly is similar to the position variation and intensity of the Western Pacific Subtropical High (WPSH).Meanwhile, it is closely related the variation of the WPSH in July and August and the intraseasonal variation.In out-of-phase years, there is a significant difference in the WPSH east-west position between the high-value year and the low-value year.For in-of-phase years, the WPSH anomaly extends westward and northward. Figures and Tables | References | Related Articles | Metrics

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Characteristics of sea breeze fronts and triggered convection on the eastern coast of the northern Bohai Sea Jing ZHANG,Wen YAO,Hai-tao CHEN,Xiao-dong HE,Yun-zhi ZHANG,Li LI,Xiao-chuan ZHAO 2021, 37 (2):  33-40.  doi: 10.3969/j.issn.1673-503X.2021.02.005 Abstract ( 325 )   HTML ( 12 )   PDF (12723KB) ( 142 )   Save We analyzed the characteristics of sea breeze front activities and triggered convection on the eastern coast of the northern Bohai Sea in 2015, 2018, and 2019, using convectional observations, data retrieved from radar and satellite and observed at encrypted automatic weather stations.The results showed that the activity of sea breeze fronts in the eastern coast of the northern Bohai Sea varies greatly among years and mainly occurs from June to August, mostly in July.Sea breeze fronts can be divided into three types, including the along-mountain type, the northern-coast type, and the hybrid type.The along-mountain type of sea breeze fronts accounts for more than 70%, which can be maintained and strengthened after moving eastwards to the mountainous area, and extends to Shenyang in the northern part.Sea breeze fronts usually show a narrow-band echo in radar reflectivity, with intensity lower than 27 dBz, and shows the convergence of wind direction or high wind speed in velocity maps, but no distinct features on radar dual polarization products such as correlation coefficient and differential reflectivity.Sea breeze fronts can occur in the various synoptic background, mostly in the presence of upper-level ridges.They can trigger afternoon heat convection, dominantly as weak convection.Sea breeze fronts in the rear of subtropical highs, in the presence of upper-level trough and cold vortex, tend to trigger strong convection and disasters including hail, short-time heavy rainfall, thunderstorm, and gale. Figures and Tables | References | Related Articles | Metrics

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Analysis of central heating necessity in South China based on air temperature and apparent temperature Jie-yun ZHAO,Bu-ju LONG,Wei-ying YUAN,Si-yu LIU,Ke-yao LI 2021, 37 (2):  41-47.  doi: 10.3969/j.issn.1673-503X.2021.02.006 Abstract ( 224 )   HTML ( 2 )   PDF (2345KB) ( 157 )   Save Using daily meteorological data obtained at 701 stations in China from 1961 to 2017 and according to the central heating standard in China (GB50736-2012), the necessity of central heating over southern China was analyzed based on 5-d moving averaged air temperature and apparent temperature.Based on the heating periods calculated using air temperature data, central heating is necessary for Jiangsu province, northern Anhui province, western Sichuan province, and western Guizhou province.While based on apparent temperature, central heating is necessary for eastern and northern Jiangsu province, Anhui province, eastern and northern Hubei province, central Hu'nan province, central Guizhou province, western Sichuan province, and northern Zhejiang province.In the combination of air temperature and apparent temperature, a scientific basis for solving the winter heating problem in South China can be provided by considering not only original standards but also the impact of meteorological factors such as air humidity. Figures and Tables | References | Related Articles | Metrics

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Characteristics of upper-level air temperature over East China from 1961 to 2017 Xing ZHI,Jian-guo TAN,Lan-dong SUN 2021, 37 (2):  48-55.  doi: 10.3969/j.issn.1673-503X.2021.02.007 Abstract ( 261 )   HTML ( 3 )   PDF (2131KB) ( 425 )   Save Based on upper-level air temperature radiosonde data obtained from 13 stations in East China (including six provinces and one city) from 1961 to 2017, we analyzed the spatiotemporal characteristics of upper-level air temperature at 850 hPa, 500 hPa, and 200 hPa in this region.The results showed that an obvious warming trend can be observed in the middle-lower troposphere and at the troposphere top, and between them, such trend becomes weak gradually with increasing height.Annual mean upper-level air temperature at 850 hPa and 500 hPa exhibits a "decrease first and then increase" variation, while it at 200 hPa persistently increases during the studying period.During autumn and winter, air temperature at all levels shows a significant warming trend, most obviously in winter, whereas a weak cooling trend is observed at 500 hPa in spring and 200 hPa in summer.The spatial distribution of annual mean temperature at different levels differs from the north to the south.The temperature difference between the north and the south increases first and then decreases with the increase of height.Annual mean air temperature at 850 hPa and 500 hPa has a stronger warming trend in the coastal area than in the inland area, while it at 200 hPa has a stronger warming trend in the southern area than in the northern area.In all seasons at 850 hPa, the warming trend in the coastal area is stronger than that in the inland area, and sometimes the inland area even exhibits a cooling trend.In spring at 500 hPa and summer and autumn at 200 hPa, a warming trend exhibits in the southern region, and a cooling trend is observed in the northern region in East China. Figures and Tables | References | Related Articles | Metrics

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Causes of a haze pollution event in Changchun in January of 2019 Jie YU,Yu-peng LI,Li-xin SU,Qi-duo SHAO,Shang-feng LI,Li DING,Zong-ting GAO,Lin-chang AN 2021, 37 (2):  56-63.  doi: 10.3969/j.issn.1673-503X.2021.02.008 Abstract ( 284 )   HTML ( 5 )   PDF (1830KB) ( 206 )   Save Using air quality monitoring data, surface meteorological data, and LiDAR detection data, we analyzed the variation of air pollutants and meteorological parameters and the influence mechanisms during a haze pollution event in Changchun during January 10-15, 2019.The results showed that the heaviest pollution period occurs on January 12-13, with mass concentrations of PM2.5 and PM10 exceeding 150 μg·m-3 and the aerosol extinction coefficient reaching the highest level.The PM2.5/PM10 ratio values are higher than 0.7 at most times (>70%), indicating the important contribution of fine particles to this heavy pollution event.During heavy pollution period, near-surface wind speed remains low, relative humidity increases, air pressure varies hardly, and low-level wind direction changes.Weak descending motion, temperature inversion, and shallow boundary layer weaken the horizontal and vertical diffusion capacity of the atmosphere together, which favors the accumulation of air pollutants and the formation of this haze pollution.Changchun is located ahead of a trough and in the rear of a ridge at 500 hPa.Meanwhile, weak westerly winds prevail and relative humidity is high at 850 hPa.The sea-surface air pressure field is characterized by low-pressure cyclones and weak southwest flows, which results in the transport of pollutants to Changchun and enhances haze pollution.On January 14-15, the upper-level trough is deepened and moves eastwards, and the northwest airflow at 850 hPa and the near-surface pressure gradient are strengthened, leading to the dispersion of air pollutants and ending this haze pollution event. Figures and Tables | References | Related Articles | Metrics

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The influences of meteorological factors and sea breeze on ozone pollution in Qinhuangdao Shi-ru ZHOU,Jin-mei SONG,Qian LU,Hong-ming GUO,Yu-guang ZHAO,Yan-chun GAO 2021, 37 (2):  64-70.  doi: 10.3969/j.issn.1673-503X.2021.02.009 Abstract ( 255 )   HTML ( 7 )   PDF (942KB) ( 262 )   Save Based on the data of air pollution concentration from Qinhuangdao environmental monitoring station, the meteorological data from Qinhuangdao meteorological observation station and buoy station, the characteristics of O3 pollution and its response to meteorological factors and the sea breeze were researched.Results show that the monthly variation of O3 pollution in Qinhuangdao is characterized by the most serious in May-June and September, and no day with O3 exceeding the standard in October-December and January-February.The diurnal variation of O3 is unimodal distribution i.e.the O3 concentration is highest in the afternoon and lowest in the morning.In general, the key meteorological factors triggering O3 pollution in Qinhuangdao are solar radiation of 850-950 W·m-2, daily maximum temperature over 32 ℃, relative humidity of 50%-60%, no precipitation, and SW or SSW wind dominant respectively.The sea breeze in Qinhuangdao is the most common phenomenon from June to August, with a frequency of over 50%.Usually, the sea breeze starts to appear at 8-10 a.m., reaches its maximum at noon-3 p.m., and weakens and is over after the evening.The average concentrations of O3-8h on days with the sea breeze from May to June and August to September are higher than those on days without sea breeze, and the monthly average concentrations of O3-8h on days with the sea breeze in May, June, and September are as high as 155-166 μg·m-3.All these indicate that the circulation of sea-land breeze plays a role in aggravating O3 pollution in Qinhuangdao. Figures and Tables | References | Related Articles | Metrics

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Change characteristics of continuous rain during the picking period of ponkan in Quzhou from 1951 to 2018 Chen WANG,Cheng-yan MAO,Li-qing GONG,Jian-jiang WANG 2021, 37 (2):  71-76.  doi: 10.3969/j.issn.1673-503X.2021.02.010 Abstract ( 158 )   HTML ( 3 )   PDF (2951KB) ( 380 )   Save Studying the continuous rain characteristics and atmospheric circulation background during the picking period of ponkan in Quzhou can provide a scientific guide for picking ponkan on time.Based on the daily weather data such as precipitation, rainy days, sunshine hours, relative humidity, etc., this study analyzed the change characteristics of the continuous rain and atmospheric circulation background during the picking period of ponkan from 1951 to 2018 using the statistical analysis and wavelet analysis methods.The results show that the number of consecutive rainy days, frequency, and intensity of rain during the picking period of Quzhou ponkans lightly increase, and the number of rainless days with a 3-day sliding decreases and shows the characteristics of 5 years and 7 years inter-annual and 15 years inter-decadal cyclical changes, and the cycles present a shortening trend.In the strong continuous rainy years during the ponkan picking period, a meridional circulation with two heights and one low prevails over the Asia-Europe region.Under such circumstances, strong cold air moves southward frequently and eastward slowly, and the southerly warm and humid airflow is active, which causes a convergence of warm and cold air in the middle and lower reaches of the Yangtze River for a long time. Figures and Tables | References | Related Articles | Metrics

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A homogeneity test for annual maximum wind speed based on three-parameter Weibull distribution Hua-yang WEN,Hua-liang ZHU,Zhuang LIU,Qin-qin KONG,Wen-zhou MA,Feng-jiao CHEN 2021, 37 (2):  77-83.  doi: 10.3969/j.issn.1673-503X.2021.02.011 Abstract ( 154 )   HTML ( 0 )   PDF (773KB) ( 213 )   Save Using the dataset of annual maximum wind speed from 56 national meteorological stations in Anhui province from 1980 to 2018, a homogeneity test method based on three-parameter Weibull distribution was used for the test of the annual maximum wind speed.Taking the data from Langxi meteorological station as an example, the detailed process of experiment and analysis for this method was given.In the end, the performance of this method was compared with those of PMFT and SNHT methods.The results show that the data of annual maximum wind speed from 56 stations pass the Weibull distribution test, while only 45 stations pass the normal distribution test in the annual maximum wind speed sequence, which indicates that the annual maximum wind speed is more consistent with the Weibull distribution.18 inhomogeneity points are detected using the Weibull method, and 15 of these are verified with an accuracy of 83.3%.The detected 4 inhomogeneity points using the PMFT method are caused by the relocation of the weather station, with the accuracy reaching 100%.Meanwhile, 15 of the detected 20 inhomogeneity points using the SNHT method are verified, and the accuracy is 75%.The main reason for the sequence inhomogeneity is the relocation of the weather station, the changes in instrument types and detection environment, and adjustment of instrument height.It is found that the PMFT method has a relatively lower sensitivity to the inhomogeneity of annual maximum wind speed sequence than the Weibull and SNHT methods.Meanwhile, the SNHT method requires a high quality test data sequence and its accuracy is lower than that of the Weibull method, suggesting that the Weibull method has a better performance on the homogeneity test of the annual maximum wind speed sequence. Figures and Tables | References | Related Articles | Metrics

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Preliminary analysis of cloud macro characteristics over the Liupan mountain based on Ka-band cloud radar Lei TIAN,Jian-ren SANG,Zhan-yu YAO,Zhuo-lin CHANG,Zhi-liang SHU,Ning CAO 2021, 37 (2):  84-90.  doi: 10.3969/j.issn.1673-503X.2021.02.012 Abstract ( 205 )   HTML ( 1 )   PDF (1494KB) ( 271 )   Save Based on the Ka-band cloud radar observation data of Liupan mountain meteorological station from September of 2017 to August of 2018, the occurrence frequency and macro characteristics of different clouds at the top of the Liupan mountain were analyzed.The results show that the highest occurrence frequency of Liupan mountain cloud i.e.61% appears in July, and the lowest value i.e.26% appears in December.Divided by the number of clouds, the clouds at the top of Liupan mountain are mainly one layer of cloud, two layers of clouds and three layers of clouds, their monthly average occurrence frequencies relative to total clouds are 68%-86%, 14%-27% and 0.4%-4.8%, respectively.Divided by cloud bottom height and cloud thickness, the ratios of monthly average occurrence frequencies of the low, medium, and high clouds and straight cloud to the total cloud are 29%-53%, 14%-58%, 6%-22%, and 2%-20%, respectively.The height of the cloud base is higher in winter and spring than in summer and autumn.The height of cloud top is higher in summer and autumn than in winter and spring.The thickness of clouds is between 1.6 km and 3.6 km and its annual variation characteristics are similar to that of the cloud top height.On the whole, the thicknesses of clouds in spring, summer, and autumn are larger in the daytime than in nighttime, while the thickness of clouds in winter is larger in nighttime than in the daytime.Besides, the cloud thicknesses in summer and autumn both indicate obvious diurnal variation characteristics. Figures and Tables | References | Related Articles | Metrics

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Review of lightning disasters and lightning protection technologies of ancient buildings Jing-xiao LI,Pei-dong HUO,Lin FU,Yong-pei YU,Yu-long ZHANG,Xiu-wen LI 2021, 37 (2):  91-100.  doi: 10.3969/j.issn.1673-503X.2021.02.013 Abstract ( 295 )   HTML ( 5 )   PDF (2166KB) ( 286 )   Save Ancient buildings are precious historical and cultural heritage, but lightning disaster is one of the main factors threatening the safety of the ancient buildings.In this paper, the overall research progress of lightning disasters and lightning protection technologies in ancient buildings were introduced.The damage characteristics and mechanism of the lightning on ancient building components, as well as the causes, methods, and influencing factors of lightning fire disasters in ancient buildings were reviewed, respectively.The analysis method of numerical simulation is recommended to study the basic problems of lightning damage based on the lightning simulation experiment.Then the two methods of the insulation protection of ancient buildings and the use of lightning protection devices to flash and discharge were analyzed.The latter is considered to be more scientific and reasonable.The research progress of the lightning protection technologies of ancient buildings were summarized, and the new technical methods and devices of lightning protection on ancient buildings were given.The current situation of lightning protection technical standards of ancient buildings was analyzed.Finally, the main topics for further research on the lightning protection of ancient buildings were proposed, including research on the damage mechanism of lightning, practical new technologies for lightning protection, lightning selectivity of ancient buildings, and refined monitoring and early warning of lightning, especially strengthen the study of new technology on the lightning protection of ancient buildings.It is very critical and necessary to do a good job of lightning protection while minimizing the influence of the original appearance of ancient buildings as much as possible. Figures and Tables | References | Related Articles | Metrics

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Research on numerical simulation of wind farm flow field characteristics and fan layout Si-yao ZHANG,Chao ZHAO,Dong SUI,Jing ZHANG,Xue-tao WANG 2021, 37 (2):  101-106.  doi: 10.3969/j.issn.1673-503X.2021.02.014 Abstract ( 196 )   HTML ( 3 )   PDF (2872KB) ( 409 )   Save In view of the important significance of studying the characteristics of the flow field of wind farms to improve the working efficiency of a wind turbine, using computational fluid dynamics (CFD) method, based on the simulation verification of a single wind turbine, a numerical simulation study was carried out on the flow field characteristics under a wind farm with a single wind turbine and three layout conditions.The distribution characteristics of wind farm speed, impeller pressure, and turbulence vortex under different layout conditions were investigated.Results showed that the wake flow effect behind the impeller is significantly obvious, and the velocity loss decreases with the relative distance increases.The wake velocity ratio at the center of the wind turbine is reduced to a minimum of 0.4.When the relative distance exceeds 4 d, the wind speed can be restored to more than 90% of the initial speed.The velocity ratio of the wake flow presents a negative correlation with the eddy viscosity.When the three wind turbines are arranged in parallel, the wake velocity ratio of each wind turbine is the same.When the three wind turbines are arranged in a staggered arrangement, the wake effect has less influence on the performance of downstream wind turbines.The larger the staggered angle, the smaller the wake loss. Figures and Tables | References | Related Articles | Metrics

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Boundary layer height inversion method based on data window standard deviation: a case study in Shanghai Peng WANG,Jian-guo TAN,Jiong SHU,Jie PENG 2021, 37 (2):  107-112.  doi: 10.3969/j.issn.1673-503X.2021.02.015 Abstract ( 144 )   HTML ( 2 )   PDF (1497KB) ( 149 )   Save The atmospheric boundary layer has an important feature, that is, at the top of the boundary layer, there is a significant abrupt change in the vertical distribution of aerosol concentration.Using this feature, the active remote sensing device is used to remove the noise data through window smoothing, and an improved atmospheric boundary layer height inversion method based on gradient method-the window standard deviation method was proposed.Based on the backscattering profile data of the laser ceilometer, this method was used to retrieve the height of the boundary layer.In the case when the atmospheric aerosol is uniformly mixed at the boundary layer height, the inversion result is ideal.On this basis, comparing the inversion results of the window standard deviation method with the inversion results of the stepwise curve fitting method, it is found that the two methods have a good correlation, with a correlation coefficient of 0.94.The reason for the difference between the two methods is that the window standard deviation method does not consider the thickness of the entrainment layer while the stepwise curve fitting method considers the thickness of the entrainment layer.The window standard deviation method can reduce the influence of high-altitude background light noise on the inversion results.The height of the boundary layer retrieved by this method has the characteristics of strong continuity in time series, and the inversion results are more conducive to the study of the temporal change trend of the height of the atmospheric boundary layer. Figures and Tables | References | Related Articles | Metrics