Synoptic Classification and Physical Model Experiments to Guide Field Studies in Complex Terrain

Berman, Neil S.; Boyer, Don L.; Brazel, Anthony J.; Brazel, Sandra W.; Chen, Ruirong; Fernando, Harindra J. S.; Fitch, Mark J.

doi:10.1175/1520-0450(1995)034<0719:scapme>2.0.co;2

Cited by 26 publications

(12 citation statements)

References 4 publications

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“…Surrounding topography restricts the transport of pollution away from the urban area. When a weak background synoptic circulation combines with a valley air temperature inversion and surrounding orographic blockade, the result is often a lack of dispersion of significant lower atmospheric pollutants away from the urban center (Berman et al, 1995;Lu and Turco 1995;Ellis et al, 2000). As far as the topography of Ahmedabad is concerned, the ground rises away from the city on all sides bounded by the gently sloping beautiful terrain.…”

Section: The Role Of Meteorologymentioning

confidence: 99%

Atmospheric Particulate Pollutants and their Relationship with Meteorology in Ahmedabad

Bhaskar¹,

Mehta

2010

Aerosol Air Qual. Res.

159

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Urban air pollution is rapidly becoming an environmental problem of public concern worldwide. It can influence public health and local/regional weather and climate. In the present study, airborne particulate pollutants data were collected for a period of 4 years (2005)(2006)(2007)(2008) at 13 locations in Ahmedabad, a mega city in Gujarat State in western India. The particulate pollutants data were collected by the Gujarat Pollution Control Board with respirable dust samplers (RDSs). The observed Suspended Particulate Matter (SPM) concentrations varied from 66.0 to 786.0 µg/m 3 , and concentrations of Particulate Matter of aerodynamic diameters less than 10 microns (PM 10 ) ranged between 17.0 to 327.0 µg/m 3 . The seasonal-and annual-average concentrations of the two pollutants were mostly above Indian air quality standards and were generally comparable with those observed in most other Indian urban areas. During this study period, there was a continuous decrease of particulate pollutants concentrations within Ahmedabad; however, the concentrations were just above the permissible limits set by the Central Pollution Control Board (CPCB). These particulate pollutants concentrations were compared with meteorological variables such as rainfall, humidity, temperature, and wind speed. Both SPM and PM 10 showed significant negative correlations with rainfall. An Air Quality Index (AQI) was calculated for all stations for all months. AQI values varied from 25 to 193.3. AQI was high in summer season and low in monsoon season. AQI values varied from Good (0-50) to Hazardous (300-500). On the basis of the AQI scale, it is found that the atmospheric environment of Ahmedabad is moderately polluted to unhealthy range.

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Section: The Role Of Meteorologymentioning

confidence: 99%

Atmospheric Particulate Pollutants and their Relationship with Meteorology in Ahmedabad

Bhaskar¹,

Mehta

2010

Aerosol Air Qual. Res.

159

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“…As the main photochemically produced atmospheric constituent, surface ozone (O 3 ) is a major pollutant that can cause serious damage to human health and ecological environment (Zhou, 1996;Berman et al, 1995;Jalaludin et al, 2004). Surface ozone is formed in the air as a result of complex photochemical reactions involving nitrogen oxides (NO + NO = NOx), carbon monoxide (CO), and various volatile organic compounds (VOCs), which mostly result from anthropogenic activities.…”

Section: Introductionmentioning

confidence: 99%

Multi-year ozone concentration and its spectra in Shanghai, China

Geng

Mao

Zhou

et al. 2015

Science of The Total Environment

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“…Along the border between Arizona, USA, and Sonora, Mexico, suspended PM is common due to the arid climate, the generally weak atmospheric dynamics, and the confining topography within which human development has occurred (Berman et al 1995). In 1995 the Arizona Comparative Environmental Risk Project examined human exposure to all environmental risks in Arizona and ranked air quality, specifically PM, as the highest threat to the collective health of the state's inhabitants (ADEQ 2000).…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

“…Mitigation efforts have increasingly reduced the impact of source areas. Grantz et al (1998) indicated that the impact of wind-driven dust emissions from anthropogenically disturbed land (tilled and overgrazed land) can be controlled by as much as 97%.Along the border between Arizona, USA, and Sonora, Mexico, suspended PM is common due to the arid climate, the generally weak atmospheric dynamics, and the confining topography within which human development has occurred (Berman et al 1995). In 1995 the Arizona Comparative Environmental Risk Project examined human exposure to all environmental risks in Arizona and ranked air quality, specifically PM, as the highest threat to the collective health of the state's inhabitants (ADEQ 2000).…”

mentioning

confidence: 99%

Climatic conditions linked to high PM10 concentration in a bi-national airshed: Nogales (Arizona, USA, and Sonora, Mexico)

Ellis¹,

Brommer²,

Balling³

2006

Clim. Res.

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Traditional particulate matter (PM) studies focus on atmospheric transport and source identification. Focusing on a problematic airshed in southwestern North America, we analyzed atmospheric characteristics and hydroclimatic conditions leading to high concentrations of PM most representative of dust (PM 10 ). The bi-national airshed of Nogales (Arizona, USA and Sonora, Mexico), has been historically characterized by high PM 10 concentrations, which tend to be much higher on the Sonora side. Concentrations in greater Nogales tend to be highest in fall and winter and lowest in summer, despite climatologically moister soil conditions in fall and winter. Within the fall, winter, and spring seasons, days of high and low PM 10 concentration were primarily distinguished by the condition of the atmosphere, with less emphasis on soil moisture. However, when PM 10 concentrations were high, soil moisture was most important in discerning days of very high concentrations on the Arizona side of the border during the most problematic seasons of fall and winter. This was not the case on the Sonora side. Furthermore, drier soil conditions were linked to anomalies in PM 10 on the Arizona side of Nogales that were higher than the corresponding anomaly on the Sonora side. The generation of PM on the Sonora side is less reliant on dry soil than it is on the Arizona side, indicating a higher level of anthropogenic dust production on the Sonora side. KEY WORDS: Particulate matter · Dust · Synoptic climatology · Soil moisture Resale or republication not permitted without written consent of the publisherClim Res 30: [113][114][115][116][117][118][119][120][121][122][123][124] 2006 modification (Tegen & Fung 1995), and vehicle traffic flows (Vernath et al. 2003).Estimates of so-called 'fugitive dust' indicate that up to half of the current global atmospheric dust load originates from anthropogenically disturbed soils (Tegen et al. 2004). However, efforts to model world dust emissions from the surface have produced varying estimates of the total load from anthropogenic sources. Sokolik & Toon (1996) estimated an amount of near 20%, while Tegen & Fung (1995) determined a contribution from anthropogenic aerosols between 30 and 50%.In arid regions, where dry soil, a stagnant atmosphere, and population increases associated with an attractive climate can lead to an expansion of dust sources, mitigation efforts are especially important. Regional studies in arid environments have tended to focus on the impact of fugitive dust in areas surrounding road surfaces and restoration of farmland in desert locales. Etyemezian et al. (2004) analyzed the transport of fugitive dust, PM 10 in particular, and found varying degrees of removal of sediment from unpaved road surfaces. The variability in measurements at set distances from the road surfaces were impacted by the atmospheric conditions, which controlled the amount and distance that the dust was transported. A similar study by Vernath et al. (2003) also noted the decrease in concentratio...

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Synoptic Classification and Physical Model Experiments to Guide Field Studies in Complex Terrain

Cited by 26 publications

References 4 publications

Atmospheric Particulate Pollutants and their Relationship with Meteorology in Ahmedabad

Atmospheric Particulate Pollutants and their Relationship with Meteorology in Ahmedabad

Multi-year ozone concentration and its spectra in Shanghai, China

Climatic conditions linked to high PM10 concentration in a bi-national airshed: Nogales (Arizona, USA, and Sonora, Mexico)

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