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Discussion papers
https://doi.org/10.5194/essd-2018-162
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2018-162
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 25 Feb 2019

Research article | 25 Feb 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Earth System Science Data (ESSD).

The Hestia Fossil Fuel CO2 Emissions Data Product for the Los Angeles Megacity (Hestia-LA)

Kevin R. Gurney1, Risa Patarasuk3, Jianming Liang2,a, Yang Song2, Darragh O'Keeffe4, Preeti Rao5, James R. Whetstone6, Riley M. Duren7, Annmarie Eldering7, and Charles Miller7 Kevin R. Gurney et al.
  • 1School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
  • 2School of Life Sciences, Arizona State University, Tempe, AZ, USA
  • 3Citrus County, Dept. of Systems Management, Lecanto, FL, USA
  • 4Contra Costa County, Department of Information Technology, Martinez, CA, USA
  • 5School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, USA
  • 6National Institute for Standards and Technology, Gaithersburg, MD, USA
  • 7NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
  • anow at: ESRI, Redlands, CA, USA

Abstract. As a critical constraint to atmospheric CO2 inversion studies, bottom-up spatiotemporally-explicit emissions data products are necessary to construct comprehensive CO2 emission information systems useful for trend detection and emissions verification. High-resolution bottom-up estimation is also useful as a guide to mitigation options, offering details that can increase mitigation efficiency and synergize with other policy goals at the national to sub-urban spatial scale. The ‘Hestia Project’ is an effort to provide bottom-up fossil fuel (FFCO2) emissions at the urban scale with building/street and hourly space-time resolution. Here, we 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. We provide a complete description of the methods used to build the Hestia FFCO2 emissions data product which is presented on a 1 km x 1 km grid for the years 2010–2015. We find that the LA Basin emits 48.06 (± 5.3) MtC/yr, dominated by the onroad sector. Because of the uneven spatial distribution of emissions, 10 % of the largest emitting gridcells account for 93.6 %, 73.4 %, 66.2 %, and 45.3 % of the industrial, commercial, onroad, and residential sector emissions, respectively. Hestia FFCO2 emissions are 10.7 % larger than the inventory estimate generated by the local metropolitan planning agency, a difference that is driven by the industrial and electricity production sectors. The Hestia-LA v2.5 emissions data product can be downloaded from the data repository at the National Institute of Standards and Technology (https://doi.org/10.18434/T4/1502503).

Kevin R. Gurney et al.
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Kevin R. Gurney et al.
Data sets

Hestia Fossil Fuel Carbon Dioxide (FFCO2) Data Product - Los Angeles Basin, Version 2.5, 1km grid K. R. Gurney, J. Liang, D. O'Keeffe, J. Huang, Y. Song, P. Rao, and T. M. Wong https://doi.org/10.18434/T4/1502503

Kevin R. Gurney et al.
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Short summary
The ‘Hestia Project’ is an effort to provide bottom-up fossil fuel (FFCO2) emissions at the urban scale with building/street and hourly space-time resolution. Here, we report on the latest urban area for which a Hestia estimate has been completed – the Los Angeles Megacity. We provide a complete description of the methods used to build the Hestia FFCO2 emissions data product and general analysis of the numerical results.
The ‘Hestia Project’ is an effort to provide bottom-up fossil fuel (FFCO2) emissions at the...
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