World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Nitrogen Oxides Measurements in an Amazon Site and Enhancements Associated with a Cold Front : Volume 4, Issue 3 (04/05/2004)

By Cordova, A. M.

Click here to view

Book Id: WPLBN0003997573
Format Type: PDF Article :
File Size: Pages 31
Reproduction Date: 2015

Title: Nitrogen Oxides Measurements in an Amazon Site and Enhancements Associated with a Cold Front : Volume 4, Issue 3 (04/05/2004)  
Author: Cordova, A. M.
Volume: Vol. 4, Issue 3
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2004
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Artaxo, P., Cordova, A. M., F. Silva Dia, M. A., Freitas, E. D., Procópio, A., Gatti, L. V.,...Longo, K. (2004). Nitrogen Oxides Measurements in an Amazon Site and Enhancements Associated with a Cold Front : Volume 4, Issue 3 (04/05/2004). Retrieved from http://www.ebooklibrary.org/


Description
Description: Instituto de Pesquisas Energéticas e Nucleares (IPEN), São Paulo, Brazil. An intensive atmospheric chemistry study was carried out in a pristine Amazonian forest site (Balbina), Amazonas state, Brazil during the 2001 wet season, as part of the LBA/CLAIRE 2001 (The Large Scale Biosphere Atmosphere Experiment in Amazonia/Cooperative LBA Airborne Regional Experiment) field campaign. Measurements of nitrogen oxide (NO), nitrogen dioxide (NO2) and ozone (O3) were performed simultaneously with aerosol particles and black carbon concentrations and meteorological parameters observations. Very low trace gases and aerosol concentrations are typically observed at this pristine tropical site. During the measurement period, there was a three-day episode of enhancement of NO2 and black carbon concentration. NO2 concentration reached a maximum value of 4 ppbv, which corresponds to three times the background concentration observed for this site. Black carbon concentration increased from the approximated 100 ng/m3 average value to a 200 ng/m3 maximum during the same period. Biomass burning spots were detected southward, between latitudes 15 to 10° S, 5–6 days before this episode from GOES-8 WF_ABBA (Wildfire Automated Biomass Burning Algorithm). An atmospheric numerical simulation of the whole measurement period was carried out using the RAMS model coupled to a biomass burning emission and transport model. The simulation results pictured a smoke transport event from Central Brazil associated to an approach of a mid-latitude cold front, reinforcing the hypothesis of biomass burning products being long-range transported from the South by the cold front and crossing the Equator. This transport event shows how the pristine atmosphere pattern in Amazonia is impacted by biomass burning emissions from sites very far away.

Summary
Nitrogen oxides measurements in an Amazon site and enhancements associated with a cold front

 

Click To View

Additional Books


  • Impacts of Seasonal and Regional Variabi... (by )
  • Optical and Physical Properties of Aeros... (by )
  • Lidar Observations of Nabro Volcano Aero... (by )
  • The Importance of Transport Model Uncert... (by )
  • Two-years of No3 Radical Observations in... (by )
  • Climatology of Free-tropospheric Humidit... (by )
  • Mesospheric N2O Enhancements as Observed... (by )
  • Combined Sage Ii-gomos Ozone Profile Dat... (by )
  • Second-generation Products of Β-caryophy... (by )
  • On the Spectrum of Vertically Propagatin... (by )
  • General Introduction to the Damocles Spe... (by )
  • Two Decades of Oh Variability as Inferre... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook 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.