Dissertation > Excellent graduate degree dissertation topics show

Observational Study of Atmospheric Aerosol Scattering Characteristics in Northern Suburb of Nanjing

Author: DingFeng
Tutor: ZhuBin
School: Nanjing University of Information Engineering
Course: Atmospheric Physics and Atmospheric Environment
Keywords: Aerosol Optical Properties Observation Study Anthropogenic Emission
CLC: X513
Type: Master's thesis
Year: 2011
Downloads: 68
Quote: 1
Read: Download Dissertation

Abstract


By using Integrating Nephelometer (TSI3563) observed in the northern suburb of Nanjing, the four seasons of atmospheric aerosol scattering coefficient of the northern suburb of Nanjing hourly changes in diurnal and seasonal changes, combined with meteorological data analysis Precipitation, visibility, humidity, wind speed and wind direction on the aerosol scattering coefficient. By using the thermoelectric devices,we also analysis the relationship between main gas pollutants (SO2 and NO2) and aerosol scattering coefficient in the four seasons.(1) Seasonal changes of aerosol scattering coefficient, the lowest average in the spring and the autumn is the highest, winter and spring is not very different. Fall is affected by the surrounding straw burning influenced the stability of the weather conditions will produce more pollution. Diurnal variation of aerosol scattering coefficient is a single valley bimodal type, peak time is different as the seasons change.(2) Meteorological conditions on aerosol scattering coefficient is becoming larger, significant precipitation for the removal of aerosol effects can be worse after precipitation 600Mm-1. Visibility and scattering coefficient is negatively correlated. Surface wind speed and direction of the observation point has a great impact on the scattering coefficient, scattering coefficient has high value when the wind easterly, southerly and the west wind,the coefficient has lower value.(3) In different seasons, scattering coefficients and SO2,NO 2 concentration have some relevance. For SO2, in the autumn, the largest correlation with the scattering coefficient. NO2 have the relationship with scattering coefficient in the spring.Because of the summer precipitation, SO2,NO2 between scattering coefficient have no great relevance.

Related Dissertations

  1. The Study on the Competence of Rural Junior High School Head Teacher in Nansha District,G635.1
  2. Synthesis, Conformation and Character of W/Cu/S Supermolecule Clusters Containing Tp~* Group,O611.4
  3. Construction, Characterization and Properties of Tp~*-Containing W/S/Cu Clusters,O611.4
  4. High yield and quality of lettuce cultivation system in nutrient solution aerosol control technology research,S636.2
  5. CdSeTeS quaternary alloy quantum dots microwave-assisted aqueous phase synthesis , optical properties , and biological applications,O614.242
  6. Properties of Silicon Nitride Thin Films Deposited by R.F Magnetron Sputtering,O613.72
  7. Study on the Synthesis and Optical Properties of New Inorganic Luminescent Materials Co-doped with Rare Earth Ions,O611.4
  8. First Principles Study of the Electronic Structure and Optical Properties of Doped LaAlO3,O614.331
  9. The High-pressure Phase Transition of FeCr2O4 and Density-Functional Theory Investigation on Each Phase of FeCr2O4,O614.8
  10. Study on Radio-Rrequency Reactive Magnetron Sputtering for the Single-Phased Ag2O Films for Optical and Magneto-optical Storage,O484.1
  11. Syntheses, Structures and Properties of Chiral Metallo-Organic Complexes Based on Pure Chiral Terpyridyl-Amino-Acid Ligand,O621.13
  12. Synthesis and Optical Properties of Nitrogen Bridgehead Heterocycles,O621.3
  13. Design, Synthesis and Optical Properties of Novel S-triazine Derivatives,O626
  14. Design, Synthesis and Property Studies of Azolylbenzoic Acid Organotin Complexse,O627.42
  15. The amino porphyrin derivatives synthesis and optical properties,O626
  16. Design and Synthesis of Triphenylamine Derivatives and Their Platinum (Ⅱ) Complexes with Optical Properties and Biological Action,O641.4
  17. Research on Preparation and Optical Properties of Co-doped ZnO Nanocrystals,TB383.1
  18. Synthesis and Property of New Supramolecular Assembly Based on Polyoxometalate,O614
  19. Preparation and Stucture Investigation of Hydrogen-Bonding Induced Carboxylic Acid-Amine Complex,O621.3
  20. The DFT Study on Second-order Nonlinear Optical Property of the Open-shell Schiff Base Ligands and Complexes,O641.4
  21. HWECdZnTe / Si and characterization of thin film materials,O484.1

CLC: > Environmental science, safety science > Environmental pollution and its prevention > Atmospheric pollution and its control > Particulate pollutants
© 2012 www.DissertationTopic.Net  Mobile