Urbanization and the carbon cycle: Current capabilities and research outlook from the natural sciences perspective

LR Hutyra, R Duren, KR Gurney, N Grimm… - Earth's …, 2014 - Wiley Online Library
This paper explores the urban carbon cycle from the natural sciences perspective,
identifying key knowledge gaps and priority areas for future research. The combination of …

Urban-focused satellite CO2 observations from the Orbiting Carbon Observatory-3: A first look at the Los Angeles megacity

M Kiel, A Eldering, DD Roten, JC Lin, S Feng… - Remote Sensing of …, 2021 - Elsevier
Abstract NASA's Orbiting Carbon Observatory-3 (OCO-3) was designed to support the
quantification and monitoring of anthropogenic CO 2 emissions. Its Snapshot Area Map …

Atmospheric measurement techniques to quantify greenhouse gas emissions from cities

A Christen - Urban Climate, 2014 - Elsevier
There is growing interest to constrain and validate greenhouse gas (GHG) emission
inventories at urban and intra-urban scales. This contribution reviews methods to identify …

Spaceborne detection of localized carbon dioxide sources

FM Schwandner, MR Gunson, CE Miller, SA Carn… - Science, 2017 - science.org
INTRODUCTION Although the carbon budget is often presented in terms of global-scale
fluxes, many of the contributing processes occur through localized point sources, which …

Toward quantification and source sector identification of fossil fuel CO2 emissions from an urban area: Results from the INFLUX experiment

JC Turnbull, C Sweeney, A Karion… - Journal of …, 2015 - Wiley Online Library
Abstract The Indianapolis Flux Experiment (INFLUX) aims to develop and assess methods
for quantifying urban greenhouse gas emissions. Here we use CO2, 14CO2, and CO …

[HTML][HTML] Air quality during COVID-19 in four megacities: lessons and challenges for public health

P Connerton, J Vicente de Assunção… - International Journal of …, 2020 - mdpi.com
The study described in this manuscript analyzed the effects of quarantine and social
distancing policies implemented due to the Coronavirus Disease 2019 (COVID-19) …

Carbon dioxide and methane measurements from the Los Angeles Megacity Carbon Project–Part 1: calibration, urban enhancements, and uncertainty estimates

KR Verhulst, A Karion, J Kim… - Atmospheric …, 2017 - acp.copernicus.org
We report continuous surface observations of carbon dioxide (CO 2) and methane (CH 4)
from the Los Angeles (LA) Megacity Carbon Project during 2015. We devised a calibration …

Large and seasonally varying biospheric CO2 fluxes in the Los Angeles megacity revealed by atmospheric radiocarbon

JB Miller, SJ Lehman, KR Verhulst, CE Miller… - Proceedings of the …, 2020 - pnas.org
Measurements of Δ14C and CO2 can cleanly separate biogenic and fossil contributions to
CO2 enhancements above background. Our measurements of these tracers in air around …

Measurements of hydroxyl and hydroperoxy radicals during CalNex‐LA: Model comparisons and radical budgets

SM Griffith, RF Hansen, S Dusanter… - Journal of …, 2016 - Wiley Online Library
Measurements of hydroxyl (OH) and hydroperoxy (HO2*) radical concentrations were made
at the Pasadena ground site during the CalNex‐LA 2010 campaign using the laser‐induced …

Los Angeles megacity: a high-resolution land–atmosphere modelling system for urban CO2 emissions

S Feng, T Lauvaux, S Newman, P Rao… - Atmospheric …, 2016 - acp.copernicus.org
Megacities are major sources of anthropogenic fossil fuel CO 2 (FFCO 2) emissions. The
spatial extents of these large urban systems cover areas of 10 000 km 2 or more with …