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The Relationship Between Low Level Convergence And Convective Precipitation In Illinois And South Florida
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Book Synopsis Low-level Convergence and the Prediction of Convective Precipitation in South Florida by : Andrew I. Watson
Download or read book Low-level Convergence and the Prediction of Convective Precipitation in South Florida written by Andrew I. Watson and published by . This book was released on 1981 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: A reliable method is presented for the prediction of convective precipitation in south Florida. Total area diverence is statistically related to area rainfall as derived by radar in a mesoscale region on the order of 1400 sq km. Various network grids and sizes are examined to find the best scale to measure total area divergence. The response of visible clouds to surface convergence is investigated with time-lapse photographs taken in the FACE mesonetwork. One case study of a convective storm complex as measured by Doppler radar and surface pressure data is presented. Finally, vertical adjustment factors are determined for surface winds under varying meteorological conditions and time of day. (Author).
Book Synopsis The Relationship Between Low-level Convergence and Convective Precipitation in Illinois and South Florida by : Andrew I. Watson
Download or read book The Relationship Between Low-level Convergence and Convective Precipitation in Illinois and South Florida written by Andrew I. Watson and published by . This book was released on 1982 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship between total area divergence and convective rainfall was examined using surface data collected during the VIN 1979 field experiment in Illinois. The mesonetwork covered an area of 2800 km 2. Total area divergence, an area-averaged quantity, can also be expressed by the line integral of the normal component of the wind around the network boundary. Total area divergence was statistically related to area rainfall based upon the criterion that a convergence event occurred anytime there was a sustained change in total area divergence of less than -1/40000s s-1 for greater than 10 minutes. The difference between initial convergence and maximum convergence was related to total area precipitation associated with the convergence. During the 33-day study, there were 106 convergence events. Forty-four of the events had rainfall, and the average was 1.53 mm per event. The correlation coefficient was -0.50. Other meteorological factors also have an influence on convergence and the production of precipitation such as middle-level moisture, stability, and low-level wind speed which improve the statistical relationships in many instances. Weighted convergence, a subset of total area divergence was also used to develop regression relationships. When compared with south Florida relationships from an earlier investigation, the Illinois results show that the correlation between convergence and rainfall has dropped a tenth in almost all cases.
Download or read book Monthly Weather Review written by and published by . This book was released on 1992 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace and Ground Conference on Lightning and Static Electricity by :
Download or read book International Aerospace and Ground Conference on Lightning and Static Electricity written by and published by . This book was released on 1991 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Level Convergence and the Prediction of Convective Precipitation by : Bernice Ackerman
Download or read book Low Level Convergence and the Prediction of Convective Precipitation written by Bernice Ackerman and published by . This book was released on 1982 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers at the University of Virginia, the Office of Weather Research and Modification (OWRM) of NOAA (formerly the cumulus group of Hurricane and Experimental Meteorological Laboratory), and the Illinois State Water Survey, have engaged in a collaborative effort to study the relationship between surface convergence and subsequent precipitation from convective clouds in both subtropical marine and mid-latitude continental climates. The overall goal of the research was to increase the understanding of the dynamics involved in the development of convective clouds and in cloud interactions on the mesoscale. More specifically, the research focused on the role of low level and surface convergence in the evolution of precipitating convective systems and on developing methods by which this increased knowledge could be used for nowcasting convective precipitation. The research studies were based both on existing data sets from Florida and the Midwest and on measurements made in a special field project carried out during the second year of the three year project. (Author).
Author :United States. Air Force. Directorate of Chemical and Atmospheric Sciences Publisher : ISBN 13 : Total Pages :190 pages Book Rating :4.:/5 ( download)
Book Synopsis AFOSR Chemical & Atmospheric Sciences Program Review by : United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Download or read book AFOSR Chemical & Atmospheric Sciences Program Review written by United States. Air Force. Directorate of Chemical and Atmospheric Sciences and published by . This book was released on 1980 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report by : National Hurricane and Experimental Meteorology Laboratory
Download or read book Annual Report written by National Hurricane and Experimental Meteorology Laboratory and published by . This book was released on 1979 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sub-cloud Layer Kinematics and Convective Rainfall in Central Illinois by : John L. Vogel
Download or read book Sub-cloud Layer Kinematics and Convective Rainfall in Central Illinois written by John L. Vogel and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The kinematic parameters of divergence and vorticity in the lowest 450 m of the atmosphere were calculated ofr a 750 km area in east central Illinois form wind measurements obtained using pilot balloons. The area for which the analysis has been made is triangular, west of Champaign/Urbana. These and similar data for the surface have been analyzed for nine days of the summer of 1979. Most of the observations were made during the afternoon and early evening hours during periods when tropical air masses overlay the observational network. The maximum surface temperatures on these days ranged from 26.5 to 35 C, and the surface dew-point temperatures varied from 18 to 24 C, approximately normal for temperature but more humid then normal. (The average dew-point for central Illinois is 18 C during July, 17 C in August.) The precipitable water content from the surface to 400 mb ranged from 3.2 to 5.3 cm, higher (by as much as 77% at the extreme) than the normal precipitable water over central Illinois during July or August (Lott, 1976). (Author).
Book Synopsis Convective Cloud Modification Potential in Illinois Compared with that for South Florida and Deduced from Soundings and Cloud Physics Measurements by : Victor Wiggert
Download or read book Convective Cloud Modification Potential in Illinois Compared with that for South Florida and Deduced from Soundings and Cloud Physics Measurements written by Victor Wiggert and published by . This book was released on 1980 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Conference Publication written by and published by . This book was released on 1991 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The 1991 International Aerospace and Ground Conference on Lightning and Static Electricity, Volume 2 by :
Download or read book The 1991 International Aerospace and Ground Conference on Lightning and Static Electricity, Volume 2 written by and published by . This book was released on 1991 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerospace and Aeronautical Meteorology by :
Download or read book Aerospace and Aeronautical Meteorology written by and published by . This book was released on 1983 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Atmospheric and Oceanic Technology by :
Download or read book Journal of Atmospheric and Oceanic Technology written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 10th Conference on Weather Forecasting and Analysis by :
Download or read book 10th Conference on Weather Forecasting and Analysis written by and published by . This book was released on 1984 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summary of the VIN Field Program by : Bernice Ackerman
Download or read book Summary of the VIN Field Program written by Bernice Ackerman and published by . This book was released on 1983 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The VIN project, a coordinated research effort by the Department of Environmental Sciences of the University of Virginia, the Illinois State Water Survey, and the Cumulus Group of NOAA (NOAA/NHEML and later NOAA/OWRM) was developed to investigate the association between the low-level wind field and convective activity in the midwestern U.S. and to further explore the relationships between surface convergence and rainfall found by Ulanski and Garstang in Florida. A key element of the project was a field program in central Illinois, designed specifically to collect measurements for a study of the role of low-level and surface convergence in the evolution of precipitating convective systems and for seeking methods which might be useful in the very short-range forecasting of convective rainfall. This report provides a description of the field program conducted in central Illinois during the summer of 1979, the equipment deployed, and the data base which was generated. In addition, a daily summary of synoptic-scale and local weather and of availability of special observations is given in the Appendix for each day during the program. (Author).
Book Synopsis Acid Deposition Causes and Effects by : Alex Edward Samuel Green
Download or read book Acid Deposition Causes and Effects written by Alex Edward Samuel Green and published by . This book was released on 1983 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
