Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1919032117 |
Estimating US fossil fuel CO2 emissions from measurements of C-14 in atmospheric CO2 | |
Basu, Sourish1,2,6,7; Lehman, Scott J.3; Miller, John B.1; Andrews, Arlyn E.1; Sweeney, Colm1; Gurney, Kevin R.4; Xu, Xiaomei5; Southon, John5; Tans, Pieter P.1 | |
2020-06-01 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2020 |
卷号 | 117期号:24页码:13300-13307 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We report national scale estimates of CO2 emissions from fossilfuel combustion and cement production in the United States based directly on atmospheric observations, using a dual-tracer inverse modeling framework and CO2 and Delta(CO2)-C-14 measurements obtained primarily from the North American portion of the National Oceanic and Atmospheric Administration's Global Greenhouse Gas Reference Network. The derived US national total for 2010 is 1,653 +/- 30 TgC yr(-1) with an uncertainty (1 sigma) that takes into account random errors associated with atmospheric transport, atmospheric measurements, and specified prior CO2 and C-14 fluxes. The atmosphere-derived estimate is significantly larger (> 3 sigma) than US national emissions for 2010 from three global inventories widely used for CO2 accounting, even after adjustments for emissions that might be sensed by the atmospheric network, but which are not included in inventory totals. It is also larger (> 2 sigma) than a similarly adjusted total from the US Environmental Protection Agency (EPA), but overlaps EPA's reported upper 95% confidence limit. In contrast, the atmosphere-derived estimate is within 1 sigma of the adjusted 2010 annual total and nine of 12 adjusted monthly totals aggregated from the latest version of the high-resolution, US-specific "Vulcan" emission data product. Derived emissions appear to be robust to a range of assumed prior emissions and other parameters of the inversion framework. While we cannot rule out a possible bias from assumed prior Net Ecosystem Exchange over North America, we show that this can be overcome with additional Delta(CO2)-C-14 measurements. These results indicate the strong potential for quantification of US emissions and their multiyear trends from atmospheric observations. |
英文关键词 | fossil fuel CO2 radiocarbon atmospheric inverse modeling |
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:000546040300026 |
WOS关键词 | (CO2)-C-14 ; INVERSIONS ; EXCHANGE ; IMPACT ; FLUXES |
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/273379 |
专题 | 地球科学 |
作者单位 | 1.NOAA, Global Monitoring Lab, Boulder, CO 80305 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 4.No Arizona Univ, Sch Informat Comp & Cyber Syst, Flagstaff, AZ 86011 USA; 5.Univ Calif Irvine, Keck Carbon Cycle AMS Facil, Irvine, CA 92697 USA; 6.NASA, Global Modeling & Assimilat Off, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 7.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA |
推荐引用方式 GB/T 7714 | Basu, Sourish,Lehman, Scott J.,Miller, John B.,et al. Estimating US fossil fuel CO2 emissions from measurements of C-14 in atmospheric CO2[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(24):13300-13307. |
APA | Basu, Sourish.,Lehman, Scott J..,Miller, John B..,Andrews, Arlyn E..,Sweeney, Colm.,...&Tans, Pieter P..(2020).Estimating US fossil fuel CO2 emissions from measurements of C-14 in atmospheric CO2.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(24),13300-13307. |
MLA | Basu, Sourish,et al."Estimating US fossil fuel CO2 emissions from measurements of C-14 in atmospheric CO2".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.24(2020):13300-13307. |
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