Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027359 |
Large Uncertainties in Urban-Scale Carbon Emissions | |
Gately, C. K.1,2; Hutyra, L. R.1 | |
2017-10-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Accurate estimates of fossil fuel carbon dioxide (FFCO2) emissions are a critical component of local, regional, and global climate agreements. Current global inventories of FFCO2 emissions do not directly quantify emissions at local scales; instead, spatial proxies like population density, nighttime lights, and power plant databases are used to downscale emissions from national totals. We have developed a high-resolution (hourly, 1 km(2)) bottom-up Anthropogenic Carbon Emissions System (ACES) for FFCO2, based on local activity data for the year 2011 across the northeastern U.S. We compare ACES with three widely used global inventories, finding significant differences at regional (20%) and city scales (50-250%). At a spatial resolution of 0.1 degrees, inventories differ by over 100% for half of the grid cells in the domain, with the largest differences in urban areas and oil and gas production regions. Given recent U.S. federal policy pull backs regarding greenhouse gas emissions reductions, inventories like ACES are crucial for U.S. actions, as the impetus for climate leadership has shifted to city and state governments. The development of a robust carbon monitoring system to track carbon fluxes is critical for emissions benchmarking and verification. We show that existing downscaled inventories are not suitable for urban emissions monitoring, as they do not consider important local activity patterns. The ACES methodology is designed for easy updating, making it suitable for emissions monitoring under most city, regional, and state greenhouse gas mitigation initiatives, in particular, for the small-and medium-sized cities that lack the resources to regularly perform their own bottom-up emissions inventories. |
领域 | 气候变化 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000417195200039 |
WOS关键词 | FUEL CO2 EMISSIONS ; DIOXIDE EMISSIONS ; SPATIAL-DISTRIBUTION ; FLUXES ; QUANTIFICATION ; SENSITIVITY ; INVERSION ; DRIVERS ; CITIES |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/32504 |
专题 | 气候变化 |
作者单位 | 1.Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA; 2.Harvard Univ, Earth & Planetary Sci Dept, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Gately, C. K.,Hutyra, L. R.. Large Uncertainties in Urban-Scale Carbon Emissions[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(20). |
APA | Gately, C. K.,&Hutyra, L. R..(2017).Large Uncertainties in Urban-Scale Carbon Emissions.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(20). |
MLA | Gately, C. K.,et al."Large Uncertainties in Urban-Scale Carbon Emissions".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.20(2017). |
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