Download or read book Meteorological Conditions Surrounding High Ozone Events in California s Central Valley written by Samantha Danielle Caputi and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The San Joaquin Valley has a notorious ozone violation problem that has persisted despite other areas in California trending toward cleaner air at a faster rate in recent decades. Here we synthesize the various synoptic, mesoscale, and microscale meteorological factors that contribute to this problem. In particular, data from the California Baseline Ozone Transport Study (CABOTS) field campaign in the summer of 2016 are analyzed, which include 170 hours of aircraft data, and these aircraft deployments are looked at in the context of background synoptic-scale meteorological conditions. We lastly highlight the importance of measuring synoptic-scale subsidence in mountain-valley systems such as the San Joaquin Valley where air pollution is an issue, assess our current ability to accomplish this, and propose new methods for future research in this domain. Some key findings from these analyses include: 1) Nighttime mesoscale features in the Southern San Joaquin Valley, mainly the low level jet and Fresno Eddy, can either recirculate or deplete ozone from the previous day, and which of these two processes dominate on any given night is determined by the low level jet strength; 2) It is extremely important to track the chemical fate of the Nitrate radical at night as this can have a large effect on the ozone budget; 3) A 3-layer model of the atmosphere is proposed, where a buffer layer exists between the daytime boundary layer and free troposphere above, and the entrainment processes at the top of the boundary layer are important to track as pollutants from the previous day can be injected into the buffer layer by the mountain-valley circulation; 4) A low-cost method of estimating turbulence (specifically the convective velocity scale, turbulent kinetic energy, and eddy dissipation) from aircraft data without a gust probe is developed; 5) The newly developed Micro-Doppler lidar that was used during CABOTS shows promising first results in its ability to measure fair-weather vertical velocities in the lower atmosphere.
Download or read book Effects of Meteorological Conditions on Ozone Sensitivity in the San Joaquin Valley written by Nancy Brown and published by . This book was released on 2011 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Seasonal Perspective on Regional Air Quality in Central California written by Ling Jin and published by . This book was released on 2008 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book I Anledning af Esbjerg og Ribe Typografernes Bes g i T nder den 20 August 1922 written by and published by . This book was released on 1922 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Examination of the Relationship Between Meteorological Conditions and High Ozone Concentrations in the South Coast Air Basin of California written by Darin Douglas Hansen and published by . This book was released on 1997 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Synoptic and Mesoscale Weather on Air Pollution in Central California written by Clinton Paul Macdonald and published by . This book was released on 1998 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Central California Ozone Study written by Ajith Kaduwela and published by . This book was released on 2007 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Seasonal Perspective on Regional Air Quality in Central California and Impacts of Electricity Generation written by Ling Jin (Project scientist) and published by . This book was released on 2011 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ends of Uncertainty written by James David Fine and published by . This book was released on 2003 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorological Influences on Oxidant Distribution and Transport in the Sacramento Valley written by Robert B. Giorgis and published by . This book was released on 1983 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the Impacts of Transported Pollutants on Ozone Concentrations in California written by Cynthia Garcia and published by . This book was released on 2001 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorology induced Variations in the Spatial Behavior of Summer Ozone Pollution in Central California written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cluster analysis was applied to daily 8 h ozone maxima modeled for a summer season to characterize meteorology-induced variations in the spatial distribution of ozone. Principal component analysis is employed to form a reduced dimension set to describe and interpret ozone spatial patterns. The first three principal components (PCs) capture (almost equal to)85% of total variance, with PC1 describing a general spatial trend, and PC2 and PC3 each describing a spatial contrast. Six clusters were identified for California's San Joaquin Valley (SJV) with two low, three moderate, and one high-ozone cluster. The moderate ozone clusters are distinguished by elevated ozone levels in different parts of the valley: northern, western, and eastern, respectively. The SJV ozone clusters have stronger coupling with the San Francisco Bay area (SFB) than with the Sacramento Valley (SV). Variations in ozone spatial distributions induced by anthropogenic emission changes are small relative to the overall variations in ozone amomalies observed for the whole summer. Ozone regimes identified here are mostly determined by the direct and indirect meteorological effects. Existing measurement sites are sufficiently representative to capture ozone spatial patterns in the SFB and SV, but the western side of the SJV is under-sampled.
Download or read book Air Pollution Modeling and its Application XXII written by Douw G. Steyn and published by Springer. This book was released on 2013-10-04 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in air pollution modeling and its application are explored here in contributions by researchers at the forefront of their field. The book is focused on local, urban, regional and intercontinental modeling; data assimilation and air quality forecasting; model assessment and evaluation; aerosol transformation; the relationship between air quality and human health and the interaction between climate change and air quality. The work will provide useful reference material for students and professors interested in air pollution modeling at the graduate level as well as researchers and professionals involved in developing and utilizing air pollution models.
Download or read book Meteorological Conditions During Oxidant Episodes in Coastal San Diego County in October and November 1959 written by California. Bureau of Air Sanitation and published by . This book was released on 1960 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1997 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Multi year Observational Study of Atmospheric Transport Corridors and Processes in California Final report written by and published by . This book was released on 1994 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
