World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

High Spatial Resolution Measurements of No2 Applying Topographic Target Light Scattering-differential Optical Absorption Spectroscopy (Total-doas) : Volume 8, Issue 24 (17/12/2008)

By Frins, E.

Click here to view

Book Id: WPLBN0003978059
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: High Spatial Resolution Measurements of No2 Applying Topographic Target Light Scattering-differential Optical Absorption Spectroscopy (Total-doas) : Volume 8, Issue 24 (17/12/2008)  
Author: Frins, E.
Volume: Vol. 8, Issue 24
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Platt, U., Wagner, T., & Frins, E. (2008). High Spatial Resolution Measurements of No2 Applying Topographic Target Light Scattering-differential Optical Absorption Spectroscopy (Total-doas) : Volume 8, Issue 24 (17/12/2008). Retrieved from http://worldlibrary.in/


Description
Description: Instituto de Física, Facultad de Ingeniería, J. Herrera y Reissig 565, 11300 Montevideo, Uruguay. Topographic Target Light scattering – Differential Optical Absorption Spectroscopy (ToTaL-DOAS), also called Target-DOAS, is a novel experimental procedure to retrieve trace gas concentrations present in the low atmosphere. Scattered sunlight (diffuse or specular) reflected from natural or artificial targets located at different distances are analyzed to retrieve the spatial distribution of the concentration of different trace gases like NO2, SO2 and others. We report high spatial resolution measurements of NO2 mixing ratios in the city of Montevideo (Uruguay) observing three buildings as targets with a Mini-DOAS instrument. Our instrument was 146 m, 196 m, and 280 m apart from three different buildings located along a main Avenue. We obtain temporal variation of NO2 mixing ratios between 30 ppb and 65 ppb from measurements of November 2007 and mixing ratios up to 50 ppb from measurements of August and September 2008. Our measurements demonstrate that ToTaL-DOAS observations can be made over relative short distances. In polluted air masses, the retrieved absorption signal was found to be sufficiently strong to allow measurements over distances in the range of several tens of meters.

Summary
High spatial resolution measurements of NO2 applying Topographic Target Light scattering-Differential Optical Absorption Spectroscopy (ToTaL-DOAS)

Excerpt
% vor jede Referenz Collis, R. T. H.: Lidar, a new atmospheric probe, Q. J. R. Meteorol. Soc., 92, 220–230, 1966.; % vor jede Referenz Bobrowski, N.: Volcanic Gas Studies by Multi Axis Differential Optical Absorption Spectroscopy, Doctoral Thesis, University of Heidelberg, Germany, 2005.; % vor jede Referenz Bobrowski, N. and Platt, U.: SO2/BrO ratios studied in five volcanic plumes, J. Volcanol. Geotherm. Res., 3-4, 166, doi:10.1016/j.jvolgeores.2007.07.003, 147–160, 2007.; % vor jede Referenz Burrows, J. P., Dehn, A., Deters, B., Himmelmann, S., Richter, A., Voigt, S., and Orphal, J.: Atmospheric Remote-Sensing Reference Data from GOME: 2, Temperature-Dependent Absorption Cross Sections of O3 in the 231–794 nm Range, J. Quant. Spectrosc. Radiat. Transf., 61, 509–517, 1999.; Fayt C. and van Roozendael, M.: WinDOAS 2.1, Software User Manual, Belgian Institute for Space Aeronomy, Brussels, Belgium (http://www.oma.be/BIRA-IASB/Molecules/BrO/WinDOAS-SUM-210b.pdf), 2001.; % vor jede Referenz Fernald, F. G.: Analysis of atmospheric LIDAR observations, Some comments, Appl. Opt., 23, 652–653, 1984.; % vor jede Referenz Frins, E., Bobrowski, N., Platt, U., and Wagner, T.: Tomographic multiaxis-differential optical absorption spectroscopy observations of Sun-illuminated targets, a technique providing well-defined absorption paths in the boundary layer, Appl. Opt., 45(24), 6227–6240, 2006.; % vor jede Referenz Frins, E., Bobrowski, N., Platt, U., and Wagner, T.: Thomographic MAX-DOAS Observations of Sun Illuminated Targets, A New Technique Providing Well Defined Absorption Paths in the Boundary Layer or simply, Topographic Target Light scattering – DOAS ToTal – DOAS, Third International DOAS Workshop, Bremen, Germany, 2006.; % vor jede Referenz Greenblatt, G. D., Orlando, J. J., Burkholder, J. B., and Ravishankara, A. R.: Absorption measurements of oxygen between 330 and 1140 nm, J. Geophys. Res., 95, 18577–18582, 1990.; % vor jede Referenz Hartl, A., Song, B. C., and Pundt, I.: 2-D reconstruction of atmospheric concentration peaks from horizontal long path DOAS tomographic measurements: parametrisation and geometry within a discrete approach, Atmos. Chem. Phys., 6, 847–861, 2006.; % vor jede Referenz Hashmonay, R. A., Yost, M. G., and Wu, C. F.: Computed Tomography of Air Pollutants Using Radial Scanning Path-Integrated Optical Remote Sensing, Atmos. Environ. 33(2), 267–274, 1999.; % vor jede Referenz Klett, J. D.: Stable analytical inversion solution for processing LIDAR returns, Appl. Opt., 20, 211–220, 1981.; % vor jede Referenz Laepple, T., Knab, V., Mettendorf, K.-U., and Pundt, I.: Longpath DOAS tomography on a motorway exhaust gas plume: numerical studies and application to data from the BAB II campaign, Atmos. Chem. Phys., 4, 1323–1342, 2004.; % vor jede Referenz Louban, I., Píriz, G., Platt, U., and Frins, E.: Differential Optical Absorption Spectroscopy (DOAS) using Targets: SO2 and NO2 measurements in Montevideo city, AIP Conference Proceeding, Vol. 992, 21–26, RIAO/OPTILAS, 2007.; % vor jede Referenz Pundt, I., Mettendorf, K. U., Laepple, T., Knab, V., Xie, P., Lösch, J., v., Friedeburg, C., Platt, U., and Wagner, T.: Measurements of trace gas distributions using long-path DOAS-tomography during the motorway campaign BAB II: Experimental setup and results for NO2, Atmos. Environ. 39, 967–975, 2005.; % vor jede Referenz Rothman, L. S., Jacquemart, D., Brown, L. R., Carleer, M., Gamache, R. R., et al.: The HITRAN 2004 Molecular Spectroscopic Database, J. Quant. Spectrosc. and Rad. Transfer, 96, 139–204, 2005.; % vor jede Referenz Stutz, J. and Platt, U.: Numerical analysis and estimation of the statistical error of differential Optical absorption spectroscopy measurements with least-squares methods, Appl. Opt., 35, 6041–6053, 1997.; % vor jede Referenz Vandaele, A. C., Hermans, C., Simon, P. C., Carleer, M., Colin, R., Fally, S., Mérienne, M.-F., Jenouvrier

 

Click To View

Additional Books


  • Stratospheric Ozone in the Post-cfc Era ... (by )
  • On the Temperature Dependence of Organic... (by )
  • Evaluation of Two Isoprene Emission Mode... (by )
  • Comparison and Evaluation of Modelled an... (by )
  • Ice Nucleation in Sulfuric Acid/Organic ... (by )
  • Intercomparison of Aerosol-cloud-precipi... (by )
  • Comparison of the Chemical Evolution and... (by )
  • Carbonaceous Aerosols in China: Top-down... (by )
  • A Molecular-level Approach for Character... (by )
  • Ozone Distributions Over Southern Lake M... (by )
  • Remote Sensing of Water Cloud Droplet Si... (by )
  • Surface Gas Pollutants in Lhasa, a Highl... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.