skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Trace-Gas Mixing in Isolated Urban Boundary Layers: Results from the 2001 Phoenix Sunrise Experiment

Abstract

Measurements made from surface sites, from the 50-m and 140-m levels (the 16th and 39th floors) of a skyscraper and from an instrumented aircraft are used to characterize early morning profiles of CO, NOy and O3 within the mid-morning summertime convective atmospheric boundary layer (CABL) over Phoenix, Arizona. Although mixing was anticipated to produce uniform values of these species throughout the CABL, this was found not to be the case. Background air advected into the upper levels of the boundary layer and entrained air from above appears to be the most likely cause for the lack of well-mixed trace gases. The results show that surface measurements may provide only limited information on concentrations of trace gas species higher in the boundary layer.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
876837
Report Number(s):
PNNL-SA-45339
Journal ID: ISSN 0004-6981; ATENBP; KP1202010; TRN: US200608%%304
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Atmospheric Environment; Journal Volume: 40; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; BOUNDARY LAYERS; GASES; AIR POLLUTION; OZONE; air pollution; CO; Ozone; Noy; mixing; convective atmospheric boundary layer

Citation Formats

Berkowitz, Carl M., Doran, J C., Shaw, William J., Springston, Stephen R., and Spicer, Chet W. Trace-Gas Mixing in Isolated Urban Boundary Layers: Results from the 2001 Phoenix Sunrise Experiment. United States: N. p., 2006. Web. doi:10.1016/j.atmosenv.2005.08.039.
Berkowitz, Carl M., Doran, J C., Shaw, William J., Springston, Stephen R., & Spicer, Chet W. Trace-Gas Mixing in Isolated Urban Boundary Layers: Results from the 2001 Phoenix Sunrise Experiment. United States. doi:10.1016/j.atmosenv.2005.08.039.
Berkowitz, Carl M., Doran, J C., Shaw, William J., Springston, Stephen R., and Spicer, Chet W. Sun . "Trace-Gas Mixing in Isolated Urban Boundary Layers: Results from the 2001 Phoenix Sunrise Experiment". United States. doi:10.1016/j.atmosenv.2005.08.039.
@article{osti_876837,
title = {Trace-Gas Mixing in Isolated Urban Boundary Layers: Results from the 2001 Phoenix Sunrise Experiment},
author = {Berkowitz, Carl M. and Doran, J C. and Shaw, William J. and Springston, Stephen R. and Spicer, Chet W.},
abstractNote = {Measurements made from surface sites, from the 50-m and 140-m levels (the 16th and 39th floors) of a skyscraper and from an instrumented aircraft are used to characterize early morning profiles of CO, NOy and O3 within the mid-morning summertime convective atmospheric boundary layer (CABL) over Phoenix, Arizona. Although mixing was anticipated to produce uniform values of these species throughout the CABL, this was found not to be the case. Background air advected into the upper levels of the boundary layer and entrained air from above appears to be the most likely cause for the lack of well-mixed trace gases. The results show that surface measurements may provide only limited information on concentrations of trace gas species higher in the boundary layer.},
doi = {10.1016/j.atmosenv.2005.08.039},
journal = {Atmospheric Environment},
number = 1,
volume = 40,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}