Zobrazeno 1 - 10
of 981
pro vyhledávání: '"A. T. Leonard"'
Autor:
C. Li, N. A. Krotkov, J. Joiner, V. Fioletov, C. McLinden, D. Griffin, P. J. T. Leonard, S. Carn, C. Seftor, A. Vasilkov
Publikováno v:
Earth System Science Data, Vol 16, Pp 4291-4309 (2024)
For nearly 2 decades, the Ozone Monitoring Instrument (OMI) aboard the NASA Aura spacecraft (launched in 2004) and the Ozone Mapping and Profiler Suite (OMPS) aboard the NASA/NOAA Suomi National Polar-orbiting Partnership (SNPP) satellite (launched i
Externí odkaz:
https://doaj.org/article/1562e683461a421a904efeba91abecfa
Autor:
S. N. F. Chepuri, A. N. Jaynes, D. L. Turner, C. Gabrielse, I. J. Cohen, D. N. Baker, B. H. Mauk, T. Leonard, J. B. Blake, J. F. Fennell
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Betatron acceleration is commonly cited as a primary accelerator of energetic electrons at dipolarization fronts, and many case studies compare observed energetic electrons measurements to a betatron model. In this work, we extend this to a statistic
Externí odkaz:
https://doaj.org/article/18dc7fbd0b9b41efa1cc6e5578fd3fe4
Autor:
V. E. Fioletov, C. A. McLinden, D. Griffin, I. Abboud, N. Krotkov, P. J. T. Leonard, C. Li, J. Joiner, N. Theys, S. Carn
Publikováno v:
Earth System Science Data, Vol 15, Pp 75-93 (2023)
Sulfur dioxide (SO2) measurements from the Ozone Monitoring Instrument (OMI), Ozone Mapping and Profiler Suite (OMPS), and TROPOspheric Monitoring Instrument (TROPOMI) satellite spectrometers were used to update and extend the previously developed gl
Externí odkaz:
https://doaj.org/article/c4e198ad7a5140728efb2a3e87ced82d
Autor:
S. N. F. Chepuri, A. N. Jaynes, D. L. Turner, C. Gabrielse, D. N. Baker, B. H. Mauk, I. J. Cohen, T. Leonard, J. B. Blake, J. F. Fennell
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2023)
In this study, we examine particle energization and injections that show energetic electron enhancements at both MMS in the magnetotail and Van Allen Probes in the inner magnetosphere. Observing injections along with a corresponding flow burst allows
Externí odkaz:
https://doaj.org/article/78fe8c17ef864674a9dd167b2eabe9ec
Autor:
N. Schutgens, O. Dubovik, O. Hasekamp, O. Torres, H. Jethva, P. J. T. Leonard, P. Litvinov, J. Redemann, Y. Shinozuka, G. de Leeuw, S. Kinne, T. Popp, M. Schulz, P. Stier
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 6895-6917 (2021)
Global measurements of absorbing aerosol optical depth (AAOD) are scarce and mostly provided by the ground network AERONET (AErosol RObotic NETwork). In recent years, several satellite products of AAOD have been developed. This study's primary aim is
Externí odkaz:
https://doaj.org/article/ceced39c38f04da8a7990a40c0ee58ac
Autor:
S. N. F. Chepuri, A. N. Jaynes, D. N. Baker, B. H. Mauk, I. J. Cohen, T. Leonard, D. L. Turner, J.B. Blake, J.F. Fennel, T. D. Phan
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
We took a survey of boundary layer (or low-latitude boundary layer) crossings by the Magnetospheric Multiscale (MMS) mission. Out of 250 total crossings, about half showed enhancements of high-energy (>30 keV) electrons in the FEEPS sensor and a litt
Externí odkaz:
https://doaj.org/article/c79e8d719b8d4deab7cb3e0cedb35785
Autor:
Laura T. Leonard, Gary F. Vanzin, Vanessa A. Garayburu-Caruso, Stephanie S. Lau, Curtis A. Beutler, Alexander W. Newman, William A. Mitch, James C. Stegen, Kenneth H. Williams, Jonathan O. Sharp
Publikováno v:
Water Research X, Vol 15, Iss , Pp 100144- (2022)
Changes in climate, season, and vegetation can alter organic export from watersheds. While an accepted tradeoff to protect public health, disinfection processes during drinking water treatment can adversely react with organic compounds to form disinf
Externí odkaz:
https://doaj.org/article/7c7dfdf26c744ca38dc9906600b2463f
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 6175-6191 (2020)
The Ozone Monitoring Instrument (OMI) has been providing global observations of SO2 pollution since 2004. Here we introduce the new anthropogenic SO2 vertical column density (VCD) dataset in the version 2 OMI SO2 product (OMSO2 V2). As with the previ
Externí odkaz:
https://doaj.org/article/0c82478482334a299942c22e7538885b
Autor:
N. Schutgens, A. M. Sayer, A. Heckel, C. Hsu, H. Jethva, G. de Leeuw, P. J. T. Leonard, R. C. Levy, A. Lipponen, A. Lyapustin, P. North, T. Popp, C. Poulsen, V. Sawyer, L. Sogacheva, G. Thomas, O. Torres, Y. Wang, S. Kinne, M. Schulz, P. Stier
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 12431-12457 (2020)
To better understand and characterize current uncertainties in the important observational constraint of climate models of aerosol optical depth (AOD), we evaluate and intercompare 14 satellite products, representing nine different retrieval algorith
Externí odkaz:
https://doaj.org/article/0f8703ab6974454fb61b77f0d18f3d28
Autor:
Carolina N. Franco, Laurence J. Seabrook, Steven T. Nguyen, Jack T. Leonard, Lauren V. Albrecht
Publikováno v:
Metabolites, Vol 12, Iss 10, p 961 (2022)
Vitamin B micronutrients are essential regulators of one carbon metabolism that ensures human health. Vitamin B9, or folate, lies at the heart of the folate cycle and converges with the methionine cycle to complete the one carbon pathway. Additionall
Externí odkaz:
https://doaj.org/article/69b68235519c4fd0a0699af5137b8562