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1. Assessing outdoor air quality vertically in an urban street canyon and its response to microclimatic factors

Author:
Chunping Miao; Shuai Yu; Yue Zhang; Yuanman Hu; Xingyuan He; Wei Chen
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 923-932
ISSN:
1001-0742
Subject:
wind direction,   etc   ; air; air quality; air temperature; microclimate; particulates; primary pollutants; spatial distribution; wind speed; winter; China;     Show all 11 Subjects
Abstract:
... The vertical distribution of air pollutants in urban street canyons is closely related to residents’ health. However, the vertical air quality in urban street canyons has rarely been assessed using field observations obtained throughout the year. Therefore, this study investigated the seasonal and annual concentrations of particulate matter (PM₂.₅ and PM₁₀), CO, NO₂, SO₂, O₃, air quality index, an ...
DOI:
10.1016/j.jes.2022.02.021

2. Slope does not affect autonomous recorder detection shape: considerations for acoustic monitoring in forested landscapes

Author:
Taylor Shaw; Sandra Müller; Michael Scherer-Lorenzen
Source:
Bioacoustics 2022 v.31 no.3 pp. 261-282
ISSN:
2165-0586
Subject:
wind direction,   etc   ; bioacoustics; extinction; landscapes; microphones;     Show all 5 Subjects
Abstract:
... To date, there are no published guidelines on how to optimally install recorders on sloped terrain, although slope could potentially affect a recorder’s detection space. This study experimentally investigated the effect of microphone orientation in relation to slope of recorders from two cost classes. We installed four recorders at each plot centre (n = 16), oriented either parallel or perpendicul ...
DOI:
10.1080/09524622.2021.1925590

3. Research on the rotor speed and aerodynamic characteristics of a dynamic yawing wind turbine with a short-time uniform wind direction variation

Author:
Shuang Zhao; Jianwen Wang; Yuxia Han; Zhen Liu
Source:
Energy 2022 v.249 pp. 123580
ISSN:
0360-5442
Subject:
wind direction,   etc   ; aerodynamics; energy; torque; wind turbines;     Show all 5 Subjects
Abstract:
... Dynamic yawing caused by wind direction variation is an important operating case for wind turbines. Because experimental data are lacking, existing studies assume that the rotor speed and pitch angle are constant, which cannot reflect the actual working states of wind turbines in the short-time variation of the wind direction. In this study, the rotor speed and power characteristics of wind turbin ...
DOI:
10.1016/j.energy.2022.123580

4. The analysis of the spatiotemporal variations and mechanisms for the near-surface wind speed over China in the last 40 years

Author:
Xia Li; Yongjie Pan; Yingsha Jiang
Source:
Theoretical and applied climatology 2022 v.148 no.3-4 pp. 1163-1180
ISSN:
0177-798X
Subject:
wind direction,   etc   ; climatology; spring; wind speed; China;     Show all 5 Subjects
Abstract:
... This study mainly presents the spatiotemporal characteristics and changes of near-surface wind speed with observations from 679 stations over China for 1979–2019. Furthermore, mechanisms of the wind speed changes are also investigated. Major results show that the larger near-surface wind speed mainly occur in northern and eastern regions, Tibetan Plateau and the coastal zones in China. The wind sp ...
DOI:
10.1007/s00704-022-03991-z

5. Beach-level 24-hour forecasts of Florida red tide-induced respiratory irritation

Author:
Shane D. Ross; Jeremie Fish; Klaus Moeltner; Erik M. Bollt; Landon Bilyeu; Tracy Fanara
Source:
Harmful algae 2022 v.111 pp. 102149
ISSN:
1568-9883
Subject:
wind direction,   etc   ; algal blooms; databases; models; risk; Florida;     Show all 6 Subjects
Abstract:
... An accurate forecast of the red tide respiratory irritation level would improve the lives of many people living in areas affected by algal blooms. Using a decades-long database of daily beach conditions, two conceptually different models to forecast the respiratory irritation risk level one day ahead of time are trained. One model is wind-based, using the current days’ respiratory level and the pr ...
DOI:
10.1016/j.hal.2021.102149

6. A numerical simulation of a strong windstorm event in the Taebaek Mountain Region in Korea during the ICE-POP 2018

Author:
Ja-Rin Park; Jung-Hoon Kim; Yewon Shin; Soo-Hyun Kim; Hye-Yeong Chun; Wook Jang; Chia-Lun Tsai; Gyuwon Lee
Source:
Atmospheric research 2022 v.272 pp. 106158
ISSN:
0169-8095
Subject:
wind direction,   etc   ; advection; gravity; mathematical models; research; temperature;     Show all 6 Subjects
Abstract:
... During the International Collaborative Experiments for the Pyeongchang 2018 Olympic and Paralympic winter games (ICE-POP 2018), a strong windstorm occurred on the lee side of the Taebaek Mountains on 14 February 2018, when a low-pressure system passed through the northern part of the Korean Peninsula. At that time, a prevailing westerly wind with warm advection and an inversion layer at the top of ...
DOI:
10.1016/j.atmosres.2022.106158

7. Robust optimization of Savonius-type wind turbine deflector blades considering wind direction sensitivity and production material decrease

Author:
Ivo Marinić-Kragić; Damir Vučina; Zoran Milas
Source:
Renewable energy 2022 v.192 pp. 150-163
ISSN:
0960-1481
Subject:
wind direction,   etc   ; energy; models; turbulent flow; wind turbines;     Show all 5 Subjects
Abstract:
... Savonius-type vertical axis wind turbine (SWT) has several characteristics appropriate for urban usage: low rotational speed, low noise, easy self-starting; but also has a low power coefficient. One of the methods to improve the SWT efficiency is to use fixed deflector blades, but this makes the SWT performance sensitive to wind direction. This paper performs a robust optimization of deflector bla ...
DOI:
10.1016/j.renene.2022.04.118

8. Sea Surface Wind Retrieval under Rainy Conditions from Active and Passive Microwave Measurements

Author:
Shubo Liu; Yinan Li; Xiaojiao Yang; Wu Zhou; Ailing Lv; Xu Jin; Hongxing Dang
Source:
Remote Sensing 2022 v.14 no.13 pp. -
ISSN:
2072-4292
Subject:
wind direction,   etc   ; geophysics; models; rain; regression analysis; wind speed;     Show all 6 Subjects
Abstract:
... The space-borne microwave radiometers and scatterometers can effectively measure global sea surface winds under non-precipitation. However, the measurements in rainy conditions significantly degrade, which are usually flagged as poor quality or invalidated for some scientific purposes. This paper develops a combined active–passive wind vector retrieval model for rainy conditions based on the HY-2B ...
DOI:
10.3390/rs14133016

9. Investigation and practical application of particle sink technology for haze removal: Pilot-scale testing

Author:
Tao Wei; Shuo Yang; Xuanbing Yang; Lianze Wang
Source:
Powder technology 2022 v.402 pp. 117333
ISSN:
0032-5910
Subject:
wind direction,   etc   ; air pollution; particulates; pollution control; technology; wind speed;     Show all 6 Subjects
Abstract:
... How to effectively purify fine particles from the atmosphere has always been the key and difficult point in atmospheric pollution prevention and control. This paper reported a new capture technology for haze particles based on the particle sink effect. The capture characteristics of haze particles and haze removal effect were analyzed in detail. The results showed that particulate matter concentra ...
DOI:
10.1016/j.powtec.2022.117333

10. Research on environmental dust pollution: ventilation and dust space–time evolution law of a fully mechanized mining face with 7-m mining height

Author:
Dawei Chen; Wen Nie; Zihao Xiu; Bo Yang; Tao Du; Qiang Liu; Huitian Peng
Source:
Environmental science and pollution research 2022 v.29 no.22 pp. 33627-33644
ISSN:
0944-1344
Subject:
wind direction,   etc   ; coal; dust; equipment; fluid mechanics; pollution; research; roads;     Show all 8 Subjects
Abstract:
... To investigate the influence of dust produced by multi-dust sources at a fully mechanized mining face with a large mining height on the safety conditions in a coal mine, the No. 22305 fully mechanized mining face of the Bulianta coal mine was considered as the research object in this study, and the space–time evolution of dust was analyzed with computational fluid dynamics (CFD). The wind flow sim ...
DOI:
10.1007/s11356-021-17967-5

11. Research on the Planning of an Urban Ventilation Corridor Based on the Urban Underlying Surface Taking Kaifeng City as an Example

Author:
Dandan Liu; Shenghui Zhou; Lijun Wang; Qian Chi; Mengyao Zhu; Weichao Tang; Xiao Zhao; Siqi Xu; Siyu Ye; Jay Lee; Yaoping Cui
Source:
Land 2022 v.11 no.2 pp. -
ISSN:
2073-445X
Subject:
wind direction,   etc   ; air; air pollution; algorithms; land; temperature; urbanization; vegetation;     Show all 8 Subjects
Abstract:
... With the rapid development of urbanization, various urban problems such as air pollution, urban heat islands, poor ventilation, and so on have followed. Ventilation corridors can improve the internal ventilation conditions of a city and can effectively alleviate these urban problems. Taking Kaifeng as an example of a medium-sized city, this study used meteorological analysis and remote sensing (RS ...
DOI:
10.3390/land11020206

12. Turbulence Characteristics Across a Range of Idealized Urban Canopy Geometries

Author:
Lewis P. Blunn; Omduth Coceal; Negin Nazarian; Janet F. Barlow; Robert S. Plant; Sylvia I. Bohnenstengel; Humphrey W. Lean
Source:
Boundary-layer meteorology 2022 v.182 no.2 pp. 275-307
ISSN:
0006-8314
Subject:
wind direction,   etc   ; canopy; face; meteorology; momentum; prediction; turbulent flow; vegetation;     Show all 8 Subjects
Abstract:
... Good representation of turbulence in urban canopy models is necessary for accurate prediction of momentum and scalar distribution in and above urban canopies. To develop and improve turbulence closure schemes for one-dimensional multi-layer urban canopy models, turbulence characteristics are investigated here by analyzing existing large-eddy simulation and direct numerical simulation data. A range ...
DOI:
10.1007/s10546-021-00658-6

13. Impact of Local Grasslands on Wild Grass Pollen Emission in Bavaria, Germany

Author:
Stephan Jung; Ye Yuan; Maria Stange Del Carpio; Thomas Pawlik; Stephan Hartmann; Nicole Estrella; Jose Oteros; Claudia Traidl-Hoffmann; Athanasios Damialis; Jeroen Buters; Annette Menzel
Source:
Land 2022 v.11 no.2 pp. -
ISSN:
2073-445X
Subject:
wind direction,   etc   ; databases; grasses; grasslands; land; land use; pollen; Germany;     Show all 8 Subjects
Abstract:
... Meteorological conditions and the distribution of pollen sources are the two most decisive factors influencing the concentration of airborne grass pollen. However, knowledge about land-use types, their potential pollen emission, and the importance of local sources remains limited. In this study, wild grass pollen concentrations from 27 stations in Bavaria, Germany, were linked to potential pollen ...
DOI:
10.3390/land11020306

14. Study of three wake control strategies for power maximization of offshore wind farms with different layouts

Author:
Baoliang Li; Jia He; Mingwei Ge; Hongliang Ma; Bowen Du; Haoze Yang; Yongqian Liu
Source:
Energy conversion and management 2022 pp. 116059
ISSN:
0196-8904
Subject:
wind direction,   etc   ; administrative management; energy conversion; wind farms; wind speed;     Show all 5 Subjects
Abstract:
... The wake regulation by cooperative yaw control, axis induction control, or their combination can significantly improve the total power output of wind farms. However, a comprehensive study of the three control strategies is still lacking, which hinders their engineering applications. To this end, the optimized yaw angles, induction factors, and total power promotion are systematically compared for ...
DOI:
10.1016/j.enconman.2022.116059

15. Wind-induced convective heat loss of cylindrical receiver considering the effect of dish concentrator

Author:
Lan Xiao; Song He; Zu-Guo Shen; Shuang-Ying Wu; Zhi-Li Chen
Source:
Renewable energy 2022 v.182 pp. 900-912
ISSN:
0960-1481
Subject:
wind direction,   etc   ; air flow; heat transfer; mathematical models; wind speed;     Show all 5 Subjects
Abstract:
... A numerical model by coupling Monte Carlo Ray Tracing (MCRT) and Computational Fluid Dynamics (CFD) was built to explore the convective heat loss of a cylindrical receiver with built-in coiled tube. Noted that the non-uniform heat flux boundary of the receiver was obtained by optical simulation and the effect of existence of the dish concentrator was taken into account. The variation of flow field ...
DOI:
10.1016/j.renene.2021.10.077

16. East Asian summer monsoon precipitation response to variations in upstream westerly wind

Author:
Jun-Hyeok Son; Kyong-Hwan Seo
Source:
Climate dynamics 2022 v.59 no.1-2 pp. 77-84
ISSN:
0930-7575
Subject:
wind direction,   etc   ; climate; dynamics; monsoon season; spring; summer; wind speed; China;     Show all 8 Subjects
Abstract:
... From spring to summer, the East Asian summer monsoon (EASM) rainband migrates northwestward. During summer, East Asian countries experience extensive precipitation due to the EASM rainband, but the springtime monsoon rainband lies over the Pacific. The seasonal evolution of the EASM rainband is influenced by the mechanical effect of the Tibetan Plateau, and seasonal changes in the westerly wind sp ...
DOI:
10.1007/s00382-021-06117-9

17. The role of surrounding buildings on the accumulation of embers on rooftops during an ember storm

Author:
Dac Nguyen; Nigel B. Kaye
Source:
Fire safety journal 2022 v.131 pp. 103624
ISSN:
0379-7112
Subject:
wind direction,   etc   ; buildings; fire safety; height; journals; storms; structural roofs; testing;     Show all 8 Subjects
Abstract:
... Results are presented for tests of ember accumulation on buildings during an ember storm. Specifically, the experiments investigate the role of upstream buildings on the accumulation of embers on the rooftops of a building. Experiments were run for three target buildings for three different wind directions per building. The upstream array of buildings varied in both layout (staggered and regular g ...
DOI:
10.1016/j.firesaf.2022.103624

18. Assessment of Deep Convective Systems in the Colombian Andean Region

Author:
Nicolás Velásquez
Source:
Hydrology 2022 v.9 no.7 pp. -
ISSN:
2306-5338
Subject:
wind direction,   etc   ; mountains; radar; rain; remote sensing; stakeholders; Andes region; Colombia;     Show all 8 Subjects
Abstract:
... In tropical regions, deep convective systems are associated with extreme rainfall storms that usually detonate flash floods and landslides in the Andean Colombian region. Several studies have used satellite data to address the structure and formation of tropical convective storms. However, there is a local gap in the characterization, which is essential for a better understanding of flash floods a ...
DOI:
10.3390/hydrology9070119

19. Experimental evaluation of a tree-shaped quad-rotor wind turbine on power output controllability and survival shutdown capability

Author:
Yichen Jiang; Shijie Liu; Peidong Zao; Yanwei Yu; Li Zou; Liqin Liu; Jiawen Li
Source:
Applied energy 2022 v.309 pp. 118350
ISSN:
0306-2619
Subject:
wind direction,   etc   ; aerodynamics; batteries; energy; wind speed; wind tunnels; wind turbines;     Show all 7 Subjects
Abstract:
... Vertical-axis wind turbines are considered to be a better choice for cities and isolated semi-urban areas. However, it is difficult to control their power outputs, especially at high wind speeds, which can potentially cause damage to the generator or the wind turbine structures. In this study, a tree-shaped quad-rotor wind turbine with an active yaw system was proposed to not only effectively cont ...
DOI:
10.1016/j.apenergy.2021.118350

20. Investigation of future climate change over the British Isles using weather patterns

Author:
James O. Pope; Kate Brown; Fai Fung; Helen M. Hanlon; Robert Neal; Erika J. Palin; Anne Reid
Source:
Climate dynamics 2022 v.58 no.9-10 pp. 2405-2419
ISSN:
0930-7575
Subject:
wind direction,   etc   ; climate; climate change; dynamics; summer; uncertainty; weather forecasting; winter;     Show all 8 Subjects
Abstract:
... For those involved in planning for regional and local scale changes in future climate, there is a requirement for climate information to be available in a context more usually associated with meteorological timescales. Here we combine a tool used in numerical weather prediction, the 30 weather patterns produced by the Met Office, which are already applied operationally to numerical weather predict ...
DOI:
10.1007/s00382-021-06031-0