Zobrazeno 1 - 10
of 918
pro vyhledávání: '"R. Nassar"'
Autor:
D. H. Cusworth, A. K. Thorpe, C. E. Miller, A. K. Ayasse, R. Jiorle, R. M. Duren, R. Nassar, J.-P. Mastrogiacomo, R. R. Nelson
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 14577-14591 (2023)
Carbon dioxide (CO2) emissions from combustion sources are uncertain in many places across the globe. Satellites have the ability to detect and quantify emissions from large CO2 point sources, including coal-fired power plants. In this study, we rout
Externí odkaz:
https://doaj.org/article/1c631c0dee1e436ab3cc1f80f42c8d48
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 3493-3516 (2023)
Using co-located space-based measurements of carbon dioxide (CO2) from the Orbiting Carbon Observatory-2 and Orbiting Carbon Observatory-3 (OCO-2/3) and carbon monoxide (CO) and nitrogen dioxide (NO2) from the TROPOspheric Monitoring Instrument (TROP
Externí odkaz:
https://doaj.org/article/6412c415ab0a4f9ca19ee631196717df
Autor:
J. Mendonca, R. Nassar, C. W. O'Dell, R. Kivi, I. Morino, J. Notholt, C. Petri, K. Strong, D. Wunch
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7511-7524 (2021)
Satellite retrievals of XCO2 at northern high latitudes currently have sparser coverage and lower data quality than most other regions of the world. We use a neural network (NN) to filter Orbiting Carbon Observatory 2 (OCO-2) B10 bias-corrected XCO2
Externí odkaz:
https://doaj.org/article/2d281de1674742429e37e44d1d0ac717
Autor:
S. Crowell, D. Baker, A. Schuh, S. Basu, A. R. Jacobson, F. Chevallier, J. Liu, F. Deng, L. Feng, K. McKain, A. Chatterjee, J. B. Miller, B. B. Stephens, A. Eldering, D. Crisp, D. Schimel, R. Nassar, C. W. O'Dell, T. Oda, C. Sweeney, P. I. Palmer, D. B. A. Jones
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 9797-9831 (2019)
The Orbiting Carbon Observatory-2 has been on orbit since 2014, and its global coverage holds the potential to reveal new information about the carbon cycle through the use of top-down atmospheric inversion methods combined with column average CO2 re
Externí odkaz:
https://doaj.org/article/2a2009db44ed40e6bf6fa8c0121fe23e
How bias correction goes wrong: measurement of XCO2 affected by erroneous surface pressure estimates
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 2241-2259 (2019)
All measurements of XCO2 from space have systematic errors. To reduce a large fraction of these errors, a bias correction is applied to XCO2 retrieved from GOSAT and OCO-2 spectra using the ACOS retrieval algorithm. The bias correction uses, among
Externí odkaz:
https://doaj.org/article/ecbafcff52a94bfea72b6d69017d4490
Autor:
A. Senok, A. Somily, R. Nassar, G. Garaween, G. Kim Sing, E. Müller, A. Reissig, D. Gawlik, R. Ehricht, S. Monecke
Publikováno v:
Journal of Infection and Public Health, Vol 13, Iss 2, Pp 322- (2020)
Externí odkaz:
https://doaj.org/article/92dc7b874d8c43e282ab4f93d730e743
Autor:
A. Senok, R. Nassar, E. Kaklamanos, K. Belhoul, S. Abu Fanas, M. Nassar, A. Azar, E. Müller, A. Reissig, D. Gawlik, S. Monecke, R. Ehricht
Publikováno v:
Journal of Infection and Public Health, Vol 13, Iss 2, Pp 356- (2020)
Externí odkaz:
https://doaj.org/article/5b8991a432704090877b933498836e34
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 1251-1272 (2018)
The regional uncertainty of the column-averaged dry air mole fraction of CO2 (XCO2) retrieved using different algorithms from the Greenhouse gases Observing SATellite (GOSAT) and its attribution are still not well understood. This paper investigat
Externí odkaz:
https://doaj.org/article/946e0c3702fe4baea790d3e37e8162ef
Autor:
B. Badawy, S. Polavarapu, D. B. A. Jones, F. Deng, M. Neish, J. R. Melton, R. Nassar, V. K. Arora
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 631-663 (2018)
The Canadian Land Surface Scheme and the Canadian Terrestrial Ecosystem Model (CLASS-CTEM) together form the land surface component in the family of Canadian Earth system models (CanESMs). Here, CLASS-CTEM is coupled to Environment and Climate Cha
Externí odkaz:
https://doaj.org/article/4095e0c0a5f04acbb8ac16fee35ae9b7
Autor:
F. Deng, D. B. A. Jones, T. W. Walker, M. Keller, K. W. Bowman, D. K. Henze, R. Nassar, E. A. Kort, S. C. Wofsy, K. A. Walker, A. E. Bourassa, D. A. Degenstein
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 20, Pp 11773-11788 (2015)
The upper troposphere and lower stratosphere (UTLS) represents a transition region between the more dynamically active troposphere and more stably stratified stratosphere. The region is characterized by strong gradients in the distribution of long-li
Externí odkaz:
https://doaj.org/article/50567fc171654d5095b63471ac22aa32