DOI: 10.1016/j.atmosenv.2017.03.013
Scopus记录号: 2-s2.0-85016164175
论文题名: An assessment of 10-year NOAA aircraft-based tropospheric ozone profiling in Colorado
作者: Leonard M ; , Petropavlovskikh I ; , Lin M ; , McClure-Begley A ; , Johnson B ; J ; , Oltmans S ; J ; , Tarasick D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 158 起始页码: 116
结束页码: 127
语种: 英语
英文关键词: Aircraft observations
; Climatology
; Model analysis
; Ozone variability
; Tropospheric ozone
; Validation
Scopus关键词: Aircraft
; Bins
; Climate models
; Climatology
; Fighter aircraft
; Greenhouse gases
; Meteorological instruments
; Ozone
; Ozone layer
; Troposphere
; Aircraft observations
; Model analysis
; Ozone variability
; Tropospheric ozone
; Validation
; Aircraft instruments
; ozone
; aircraft emission
; climatology
; geophysical survey
; greenhouse gas
; hindcasting
; model validation
; NOAA satellite
; ozone
; ozonesonde
; troposphere
; aircraft
; Article
; climate
; Colorado
; controlled study
; greenhouse gas
; North America
; priority journal
; simulation
; troposphere
; Boulder
; Colorado
; Front Range
; Rocky Mountains
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The Global Greenhouse Gas Reference Network Aircraft Program at NOAA has sampled ozone and other atmospheric trace constituents in North America for over a decade (2005-present). The method to derive tropospheric ozone climatology from the light aircraft measurements equipped with the 2B Technology instruments is described in this paper. Since ozone instruments at most of aircraft locations are flown once a month, this raises the question of whether the sampling frequency allows for deriving a climatology that can adequately represent ozone seasonal and vertical variability over various locations. Here we interpret the representativeness of the tropospheric ozone climatology derived from these under-sampled observations using hindcast simulations conducted with the Geophysical Fluid Dynamics Laboratory chemistry-climate model (GFDL-AM3). We first focus on ozone measurements from monthly aircraft profiles over the Front Range of Colorado and weekly ozonesondes launched in Boulder, Colorado. The climatology is presented as monthly values separated in 5th, 25th, 50th, 75th, 95th percentiles, and averaged at three vertical layers: lower (1.6–3 km), middle (3–6 km), and upper (6–8 km) troposphere. The aircraft-based climatology is compared to the climatology derived from the nearest located ozonesondes launched from Boulder, Colorado, from GFDL-AM3 co-sampled in time with in-situ observations, and from GFDL-AM3 continuous 3-h samples. Based on these analyses, we recommend the sampling frequency to obtain adequate representation of ozone climatology in the free troposphere. The 3-h sampled AM3 model is used as a benchmark reference for the under-sampled time series. We find that the minimal number of soundings required per month for the all altitude bins (1.6–3, 3–6, and 6–8 km) to sufficiently match the 95% confidence level of the fully sampled monthly ozone means vary between 3 and 5 sounding per month, except in August with a minimum of 6 soundings per month. The middle altitude bin required the least number of samplings per month. We determine the reasonably good agreement between the ozonesondes and aircraft measurements near Boulder suggest that valuable climatologies could be developed from the aircraft sites where no ozonesondes exist even though the aircraft measurements are more limited in number than the ozonesondes. When averaged over a number of years the aircraft data provide valuable information. More frequent sampling could tell us more but the measurements given would indicate that they can provide interesting climatological results. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82398
Appears in Collections: 气候变化事实与影响
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作者单位: NOAA Earth System Research Laboratory / Global Monitoring Division, Boulder, CO, United States; Science and Technology Corporation, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Program in Atmospheric and Oceanic Sciences, Princeton University and NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Experimental Studies Research Division, Meteorological Service of Canada, Environment Canada, Ontario, Canada
Recommended Citation:
Leonard M,, Petropavlovskikh I,, Lin M,et al. An assessment of 10-year NOAA aircraft-based tropospheric ozone profiling in Colorado[J]. Atmospheric Environment,2017-01-01,158