Zobrazeno 1 - 10
of 34
pro vyhledávání: '"D. J. Varon"'
Autor:
B. Nathan, J. D. Maasakkers, S. Naus, R. Gautam, M. Omara, D. J. Varon, M. P. Sulprizio, L. A. Estrada, A. Lorente, T. Borsdorff, R. J. Parker, I. Aben
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 6845-6863 (2024)
Venezuela has long been identified as an area with large methane emissions and intensive oil exploitation, especially in the Lake Maracaibo region, but production has strongly decreased in recent years. The area is notoriously difficult to observe fr
Externí odkaz:
https://doaj.org/article/79d6ebd7c9724195852a1eeec351eb45
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 2625-2636 (2024)
Current methods for detecting atmospheric plumes and inferring point-source rates from high-resolution satellite imagery are labor-intensive and not scalable with regard to the growing satellite dataset available for methane point sources. Here, we p
Externí odkaz:
https://doaj.org/article/080289bbbc4f47ce8e8f1ebbf3c47661
Autor:
B. J. Schuit, J. D. Maasakkers, P. Bijl, G. Mahapatra, A.-W. van den Berg, S. Pandey, A. Lorente, T. Borsdorff, S. Houweling, D. J. Varon, J. McKeever, D. Jervis, M. Girard, I. Irakulis-Loitxate, J. Gorroño, L. Guanter, D. H. Cusworth, I. Aben
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 9071-9098 (2023)
A reduction in anthropogenic methane emissions is vital to limit near-term global warming. A small number of so-called super-emitters is responsible for a disproportionally large fraction of total methane emissions. Since late 2017, the TROPOspheric
Externí odkaz:
https://doaj.org/article/d5433b4a8b464624886366effb0a3186
Autor:
D. C. Pendergrass, D. J. Jacob, H. Nesser, D. J. Varon, M. Sulprizio, K. Miyazaki, K. W. Bowman
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 4793-4810 (2023)
We present a versatile, powerful, and user-friendly chemical data assimilation toolkit for simultaneously optimizing emissions and concentrations of chemical species based on atmospheric observations from satellites or suborbital platforms. The CHemi
Externí odkaz:
https://doaj.org/article/584311172166456ebbb396cc05a850c6
Autor:
N. Balasus, D. J. Jacob, A. Lorente, J. D. Maasakkers, R. J. Parker, H. Boesch, Z. Chen, M. M. Kelp, H. Nesser, D. J. Varon
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 3787-3807 (2023)
Satellite observations of dry-column methane mixing ratios (XCH4) from shortwave infrared (SWIR) solar backscatter radiation provide a powerful resource to quantify methane emissions in service of climate action. The TROPOspheric Monitoring Instrumen
Externí odkaz:
https://doaj.org/article/c828a75276fe46bf9cae97d13d365442
Autor:
D. J. Varon, D. J. Jacob, B. Hmiel, R. Gautam, D. R. Lyon, M. Omara, M. Sulprizio, L. Shen, D. Pendergrass, H. Nesser, Z. Qu, Z. R. Barkley, N. L. Miles, S. J. Richardson, K. J. Davis, S. Pandey, X. Lu, A. Lorente, T. Borsdorff, J. D. Maasakkers, I. Aben
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7503-7520 (2023)
We quantify weekly methane emissions at 0.25∘ × 0.3125∘ (≈25 × 25 km2) resolution from the Permian Basin, the largest oil production basin in the US, by inverse analysis of satellite observations from the TROPOspheric Monitoring Instrument (T
Externí odkaz:
https://doaj.org/article/3ea8a26997aa4db99d274be8c9893668
Autor:
Z. Chen, D. J. Jacob, R. Gautam, M. Omara, R. N. Stavins, R. C. Stowe, H. Nesser, M. P. Sulprizio, A. Lorente, D. J. Varon, X. Lu, L. Shen, Z. Qu, D. C. Pendergrass, S. Hancock
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 5945-5967 (2023)
We use 2019 TROPOMI satellite observations of atmospheric methane in an analytical inversion to quantify methane emissions from the Middle East and North Africa at up to ∼25 km × 25 km resolution, using spatially allocated national United Nations
Externí odkaz:
https://doaj.org/article/3e38a3f6a21042d2919f4894dd631550
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 89-107 (2023)
The use of satellite instruments to detect and quantify methane emissions from fossil fuel production activities is highly beneficial to support climate change mitigation. Different hyperspectral and multispectral satellite sensors have recently show
Externí odkaz:
https://doaj.org/article/270df1a3f1f84d9798f637e4b93a1dc0
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 7155-7169 (2022)
Sentinel-2 satellite imagery has been shown by studies to be capable of detecting and quantifying methane emissions from oil and gas production. However, current methods lack performance calibration with ground-truth testing. This study developed a m
Externí odkaz:
https://doaj.org/article/21cfaf613e4749849284b8e04e8128f5
Autor:
L. Shen, R. Gautam, M. Omara, D. Zavala-Araiza, J. D. Maasakkers, T. R. Scarpelli, A. Lorente, D. Lyon, J. Sheng, D. J. Varon, H. Nesser, Z. Qu, X. Lu, M. P. Sulprizio, S. P. Hamburg, D. J. Jacob
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 11203-11215 (2022)
We use satellite methane observations from the Tropospheric Monitoring Instrument (TROPOMI), for May 2018 to February 2020, to quantify methane emissions from individual oil and natural gas (O/G) basins in the US and Canada using a high-resolution (
Externí odkaz:
https://doaj.org/article/6461e448e57c4316aa1e3784c3fa788c