Comparison of Global Downscaled Versus Bottom‐Up Fossil Fuel CO2 Emissions at the Urban Scale in Four U.S. Urban Areas
Kevin R. Gurney,Kevin R. Gurney,Jianming Liang,Darragh O'Keeffe,Risa Patarasuk,M. Hutchins,Jianhua Huang,Preeti Rao,Yang Song +8 more
Reads0
Chats0
TLDR
In this paper, a comparison of a downscaled FFCO2 emission data product (Open-source Data Inventory for Anthropogenic CO2 (ODIAC)) to a bottom-up estimate (Hestia) in four U.S. urban areas was made to better isolate and understand differences between the approaches.Abstract:
Spatiotemporally resolved urban fossil fuel CO2 (FFCO2) emissions are critical to urban carbon cycle research and urban climate policy. Two general scientific approaches have been taken to estimate spatiotemporally explicit urban FFCO2 fluxes, referred to here as “downscaling” and “bottom‐up.” Bottom‐up approaches can specifically characterize the CO2‐emitting infrastructure in cities but are labor‐intensive to build and currently available in few U.S. cities. Downscaling approaches, often available globally, require proxy information to allocate or distribute emissions resulting in additional uncertainty. We present a comparison of a downscaled FFCO2 emission data product (Open‐source Data Inventory for Anthropogenic CO2 (ODIAC)) to a bottom‐up estimate (Hestia) in four U.S. urban areas in an effort to better isolate and understand differences between the approaches. We find whole‐city differences ranging from −1.5% (Los Angeles Basin) to +20.8% (Salt Lake City). At the 1 km × 1 km spatial scale, comparisons reveal a low‐emission limit in ODIAC driven by saturation of the nighttime light spatial proxy. At this resolution, the median difference between the two approaches ranged from 47 to 84% depending upon city with correlations ranging from 0.34 to 0.68. The largest discrepancies were found for large point sources and the on‐road sector, suggesting that downscaled FFCO2 data products could be improved by incorporating independent large point‐source estimates and estimating on‐road sources with a relevant spatial surrogate. Progressively coarsening the spatial resolution improves agreement but greater than approximately 25 km, there were diminishing returns to agreement suggesting a practical resolution when using downscaled approaches. Plain Language Summary Comparison of greenhouse gas emission approaches using globally available data in specific cities shows large differences when compared to greenhouse gas emission approaches constructed from local data sources. Differences are largest at the smaller scales compared to the whole city. This suggests a limit on the use of global greenhouse gas inventories when applied to urban areas.read more
Citations
More filters
Journal ArticleDOI
Errors and uncertainties in a gridded carbon dioxide emissions inventory
Tomohiro Oda,Tomohiro Oda,Rostyslav Bun,Vitaliy Kinakh,P. Topylko,M. Halushchak,M. Halushchak,Gregg Marland,Thomas Lauvaux,Matthias Jonas,Shamil Maksyutov,Zbigniew Nahorski,Myroslava Lesiv,Olha Danylo,Olha Danylo,Joanna Horabik-Pyzel +15 more
TL;DR: In this paper, the authors compared the global, high-resolution (1.km), fossil fuel, carbon dioxide (CO2), gridded EI Open-source Data Inventory for Anthropogenic CO2 (ODIAC) with the multi-resolution, spatially explicit bottom-up EI geoinformation technologies, spatio-temporal approaches, and full carbon account for improving the accuracy of GHG inventories (GESAPU) over the domain of Poland.
Journal ArticleDOI
Observing carbon dioxide emissions over China's cities and industrial areas with the Orbiting Carbon Observatory-2
Bo Zheng,Frédéric Chevallier,Philippe Ciais,Grégoire Broquet,Yilong Wang,Jinghui Lian,Yuanhong Zhao +6 more
TL;DR: In this paper, the value of satellite observations of the column CO2 concentrations to estimate CO2 anthropogenic emissions with 5 years of the OrbitingCarbon Observatory-2 (OCO-2) retrievals over and around China was studied.
Journal ArticleDOI
Policy-Relevant Assessment of Urban CO2 Emissions
Thomas Lauvaux,Thomas Lauvaux,Kevin R. Gurney,Natasha L. Miles,Kenneth J. Davis,Scott J. Richardson,Aijun Deng,Brian J. Nathan,Tomohiro Oda,Tomohiro Oda,Jonathan A. Wang,Lucy R. Hutyra,Jocelyn Turnbull,Jocelyn Turnbull +13 more
TL;DR: Here, it is demonstrated the applicability of the integration of a dense network of greenhouse gas sensors with a science-driven building and street-scale FFCO2 emissions estimation through the atmospheric CO2 inversion process.
Journal ArticleDOI
Constraining fossil fuel CO2 emissions from urban area using OCO‐2 observations of total column CO2
X. Ye,X. Ye,Thomas Lauvaux,Thomas Lauvaux,Eric A. Kort,T. Oda,T. Oda,Sha Feng,J. C. Lin,E. G. Yang,Dien Wu +10 more
Journal ArticleDOI
The Hestia fossil fuel CO 2 emissions data product for the Los Angeles megacity (Hestia-LA)
Kevin R. Gurney,Risa Patarasuk,Jianming Liang,Jianming Liang,Yang Song,Darragh O'Keeffe,Preeti Rao,James R. Whetstone,Riley M. Duren,Annmarie Eldering,Charles E. Miller +10 more
TL;DR: Gurney et al. as discussed by the authors report on the latest urban area for which a Hestia estimate has been completed, the Los Angeles megacity, encompassing five counties: Los Angeles County, Orange County, Riverside County, San Bernardino County and Ventura County.
References
More filters
Journal ArticleDOI
Towards robust regional estimates of CO2 sources and sinks using atmospheric transport models.
Kevin R. Gurney,Rachel M. Law,A. S. Denning,Peter Rayner,David Baker,Philippe Bousquet,Lori Bruhwiler,Yu-Hsin Chen,Philippe Ciais,Song-Miao Fan,Inez Fung,Manuel Gloor,Martin Heimann,Kaz Higuchi,Jasmin John,Takashi Maki,Shamil Maksyutov,Kenneth A. Masarie,Philippe Peylin,Michael J. Prather,Bernard Pak,James T. Randerson,Jorge L. Sarmiento,S. Taguchi,Taro Takahashi,C.-W. Yuen +25 more
TL;DR: An uptake of CO2 in the southern extratropical ocean less than that estimated from ocean measurements is found, a result that is not sensitive to transport models or methodological approaches, and carbon fluxes integrated over latitudinal zones are strongly constrained by observations in the middle to high latitudes.
Inventory of U.S. Greenhouse Gas Emissions and Sinks
L. Hockstad,L. Hanel +1 more
TL;DR: In this paper, the updates implemented in EPA's 2020 inventory of U.S. GHG emissions and sinks for gathering and boosting (G&B) stations were discussed, and additional considerations for G&B were previously discussed in memoranda released November 2019 (Inventory of GHG Emissions and Sinks 1990-2018: Updates Under Consideration for Natural Gas Gathering & Boosting Station Emissions).
Book
Global Warming: The Complete Briefing
TL;DR: A full survey of the present state of knowledge on global warming and what can be done about it can be found in this paper, where the information and interpretation is not just one man's view, but represents the common mind of the scientific community.
Journal ArticleDOI
Cities and the Governing of Climate Change
TL;DR: In this article, a review examines the history and development of urban climate governance, the policies and measures that have been put into place, the multilevel governance context in which these are undertaken, and the factors that have structured the posibilities for addressing the issue.
Related Papers (5)
High Resolution Atmospheric Inversion of Urban CO2 Emissions During the Dormant Season of the Indianapolis Flux Experiment (INFLUX)
Thomas Lauvaux,Thomas Lauvaux,Natasha L. Miles,Aijun Deng,Scott J. Richardson,Maria Obiminda L Cambaliza,Kenneth J. Davis,Brian J. Gaudet,Kevin R. Gurney,Jianhua Huang,D. o'Keefe,Yang Song,Anna Karion,Tomohiro Oda,Tomohiro Oda,Risa Patarasuk,I. N. Razlivanov,D. P. Sarmiento,Paul B. Shepson,Colm Sweeney,Jocelyn Turnbull,Jocelyn Turnbull,Jocelyn Turnbull,Kai Wu +23 more