Browsing by Author "Wecht, Kevin James"
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Anthropogenic emissions in Nigeria and implications for atmospheric ozone pollution: A view from space
Marais, Eloise Ann; Jacob, Daniel James; Wecht, Kevin James; Lerot, C.; Zhang, Liangran; Yu, Karen; Kurosu, T; Chance, Kelly V.; Sauvage, B. (Elsevier BV, 2014)Nigeria has a high population density and large fossil fuel resources but very poorly managed energy infrastructure. Satellite observations of formaldehyde (HCHO) and glyoxal (CHOCHO) reveal very large sources of anthropogenic ... -
Mapping of North American methane emissions with high spatial resolution by inversion of SCIAMACHY satellite data
Wecht, Kevin James; Jacob, Daniel James; Frankenberg, Christian; Jiang, Zhe; Blake, Donald R. (Wiley-Blackwell, 2014)We estimate methane emissions from North America with high spatial resolution by inversion of Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite observations using the Goddard Earth ... -
Quantifying Methane Emissions Using Satellite Observations
Wecht, Kevin James (2014-02-25)Methane is the second most influential anthropogenic greenhouse gas. There are large uncertainties in the magnitudes and trends of methane emissions from different source types and source regions. Satellite observations ... -
Spatially resolving methane emissions in California: constraints from the CalNex aircraft campaign and from present (GOSAT, TES) and future (TROPOMI, geostationary) satellite observations
Wecht, Kevin James; Jacob, Daniel James; Sulprizio, Melissa Payer; Santoni, G; Wofsy, Steven Charles; Parker, R.; Bösch, H.; Worden, J. (Copernicus GmbH, 2014)We apply a continental-scale inverse modeling system for North America based on the GEOS-Chem model to optimize California methane emissions at 1/2° × 2/3° horizontal resolution using atmospheric observations from the ... -
Validation of TES Methane with HIPPO Aircraft Observations: Implications for Inverse Modeling of Methane Sources
Wecht, Kevin James; Jacob, Daniel J.; Wofsy, Steven C.; Kort, E. A.; Worden, J. R.; Kulawik, S. S.; Henze, D. K.; Kopacz, M.; Payne, V. H. (Copernicus GmbH, 2012)We validate satellite methane observations from the Tropospheric Emission Spectrometer (TES) with 151 aircraft vertical profiles over the Pacific from the HIAPER Pole-to-Pole Observation (HIPPO) program. We find that a ...