Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1702393115 |
Long-term urban carbon dioxide observations reveal spatial and temporal dynamics related to urban characteristics and growth | |
Mitchell, Logan E.1; Lin, John C.1; Bowling, David R.2; Pataki, Diane E.2; Strong, Courtenay1; Schauer, Andrew J.3; Bares, Ryan1; Bush, Susan E.2; Stephens, Britton B.4; Mendoza, Daniel1; Mallia, Derek1; Holland, Lacey1,5; Gurney, Kevin R.6; Ehleringer, James R.2 | |
2018-03-20 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:12页码:2912-2917 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Cities are concentrated areas of CO2 emissions and have become the foci of policies for mitigation actions. However, atmospheric measurement networks suitable for evaluating urban emissions over time are scarce. Here we present a unique long-term (decadal) record of CO2 mole fractions from five sites across Utah's metropolitan Salt Lake Valley. We examine "excess" CO2 above background conditions resulting from local emissions and meteorological conditions. We ascribe CO2 trends to changes in emissions, since we did not find long-term trends in atmospheric mixing proxies. Three contrasting CO2 trends emerged across urban types: negative trends at a residential-industrial site, positive trends at a site surrounded by rapid suburban growth, and relatively constant CO2 over time at multiple sites in the established, residential, and commercial urban core. Analysis of population within the atmospheric footprints of the different sites reveals approximately equal increases in population influencing the observed CO2, implying a nonlinear relationship with CO2 emissions: Population growth in rural areas that experienced suburban development was associated with increasing emissions while population growth in the developed urban core was associated with stable emissions. Four state-of-the-art global-scale emission inventories also have a nonlinear relationship with population density across the city; however, in contrast to our observations, they all have nearly constant emissions over time. Our results indicate that decadal scale changes in urban CO2 emissions are detectable through monitoring networks and constitute a valuable approach to evaluate emission inventories and studies of urban carbon cycles. |
英文关键词 | urban greenhouse gas carbon dioxide emissions trends |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427829500046 |
WOS关键词 | FUEL CO2 EMISSIONS ; GREENHOUSE-GAS EMISSIONS ; QUANTIFICATION ; CITIES ; VERIFICATION ; BENEFITS ; DRIVERS ; TRENDS ; SCALE ; CYCLE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204882 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Utah, Dept Atmospher Sci, Salt Lake City, UT 84112 USA; 2.Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA; 3.Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA; 4.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 5.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA; 6.Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA |
推荐引用方式 GB/T 7714 | Mitchell, Logan E.,Lin, John C.,Bowling, David R.,et al. Long-term urban carbon dioxide observations reveal spatial and temporal dynamics related to urban characteristics and growth[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(12):2912-2917. |
APA | Mitchell, Logan E..,Lin, John C..,Bowling, David R..,Pataki, Diane E..,Strong, Courtenay.,...&Ehleringer, James R..(2018).Long-term urban carbon dioxide observations reveal spatial and temporal dynamics related to urban characteristics and growth.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(12),2912-2917. |
MLA | Mitchell, Logan E.,et al."Long-term urban carbon dioxide observations reveal spatial and temporal dynamics related to urban characteristics and growth".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.12(2018):2912-2917. |
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