Results 1 to 10 of about 859 (166)

Satellite data validation: a parametrization of the natural variability of atmospheric mixing ratios [PDF]

Atmospheric Measurement Techniques, 2021
Abstract. High-resolution model data are used to estimate the statistically typical mixing ratio variabilities of trace species as a function of distance and time separation. These estimates can be used to explain the fact that some of the differences between observations made with different observing systems are due to the less-than-perfect co ...
Laeng, Alexandra, Clarmann, Thomas von, Errera, Quentin, Grabowski, Udo, Honomichl, Shawn   +4 more
openaire   +4 more sources

Shock Synthesis of Organic Molecules by Meteoroids in the Atmosphere of Titan

The Planetary Science Journal, 2023
Thermochemical modeling and shock-tube experiments show that shocks applied to N _2 /CH _4 gas mixtures can synthesize organic molecules. Sufficiently large, hypersonic meteoroids entering the atmosphere of Saturn’s moon Titan should therefore drive ...
Erin E. Flowers, Christopher F. Chyba
doaj   +1 more source

Decision theory‐based detection of atmospheric natural hazards from satellite imagery using the example of volcanic ash [PDF]

Quarterly Journal of the Royal Meteorological Society, 2018
Atmospheric natural hazards pose a risk to people, aircraft and infrastructure. Automated algorithms can detect these hazards from satellite imagery so that the relevant advice can be issued. The transparency and adaptability of these automated algorithms is important to cater to the needs of the end user, who should be able to readily interpret the ...
Western, Luke, Rougier, Jonathan, Watson, Matthew   +2 more
openaire   +3 more sources

Temporal Evolution of Titan’s Stratospheric Temperatures and Trace Gases from a Two-dimensional Retrieval of Cassini Composite Infrared Spectrometer Data

The Planetary Science Journal, 2023
We use a two-dimensional (2D) radiative transfer model of Titan, which allows the atmospheric structure to vary in both altitude and latitude, to retrieve the spatial distribution of temperature, haze extinction, and C _2 H _2 , C _2 H _6 , C _3 H _8 ...
Richard K. Achterberg
doaj   +1 more source

The Optical Aurorae of Europa, Ganymede, and Callisto

The Planetary Science Journal, 2023
The tenuous atmospheres of the Galilean satellites are sourced from their surfaces and produced by a combination of plasma-surface interactions and thermal processes. Even though they are thin, these atmospheres can be studied via their auroral emissions,
Katherine de Kleer, Zachariah Milby, Carl Schmidt, Maria Camarca, Michael E. Brown   +4 more
doaj   +1 more source

ПАУЗЫ В ИЗМЕНЕНИИ СРЕДНЕМЕСЯЧНОЙ ТЕМПЕРАТУРЫ В СЕВЕРНОМ И ЮЖНОМ ПОЛУШАРИЯХ И ИХ ВОЗМОЖНЫЕ ПРИЧИНЫ

Гидросфера: Опасные процессы и явления, 2021
Дискуссионный вопрос о наличии или отсутствии и продолжительности паузы в изменении температуры Земного шара в период с 1998 по 2013 год является предметом многочисленных исследований.
В.Ф. Логинов, В.С. Микуцкий, Ю.А. Бровка   +2 more
doaj   +1 more source

Spitzer IRS Observations of Titan as a Precursor to JWST MIRI Observations

The Planetary Science Journal, 2023
In this work, we present for the first time infrared spectra of Titan from the Spitzer Space Telescope (2004–2009). The data are from both the short wavelength–low resolution (SL; 5.13–14.29 μ m, R ∼ 60–127) and short wavelength–high resolution (SH; 9.89–
Brandon Park Coy, Conor A. Nixon, Naomi Rowe-Gurney, Richard Achterberg, Nicholas A. Lombardo, Leigh N. Fletcher, Patrick Irwin   +6 more
doaj   +1 more source

Haze, Methane, and Carbon Monoxide in Titan’s North Polar Atmosphere from a Cassini/VIMS Specular Transmission Spectrum on the T104 Flyby

The Planetary Science Journal
We analyze a specular reflection of the Sun off of Titan’s largest sea, Kraken Mare, observed by the Cassini Visual and Infrared Mapping Spectrometer on the T104 flyby (2014 August 21).
Jason W. Barnes, Connor T. O’Neill, Shannon M. MacKenzie, William J. Miller, Gabriel M. Steward, Maël Es-sayeh, Sebastien Rodriguez, Paul M. Corlies, Jason M. Soderblom   +8 more
doaj   +1 more source

Plume Activity on Europa: Current Knowledge and Search Strategy for Europa Clipper

The Planetary Science Journal
The presence of cryovolcanic activity in the form of geyser-like plumes at Jupiter’s moon Europa is a much-debated topic. As an active plume could allow direct sampling by a passing spacecraft of a potentially habitable interior environment, the ...
Lorenz Roth, Erin Leonard, Kelly Miller, Matt Hedman, Lynnae C. Quick, Tracy M. Becker, Shawn Brooks, Corey Cochrane, Ashley Gerard Davies, Carolyn M. Ernst, Cyril Grima, Candice J. Hansen, Carly Howett, Sean Hsu, Xianzhe Jia, Adrienn Luspay-Kuti, Margaret Kivelson, Fabian Klenner, Alfred McEwen, William B. McKinnon, Robert T. Pappalardo, Frank Postberg, Julie Rathbun, Kurt D. Retherford, Kirk Scanlan, K. Marshall Seaton, John R. Spencer, J. Hunter Waite, Paul Withers, Danielle Wyrick, Mikhail Yu. Zolotov, the Europa Clipper Plume Focus Group   +31 more
doaj   +1 more source

Detection of New Auroral Emissions at Io and Implications for Its Interaction with the Plasma Torus

The Planetary Science Journal
We observed Io’s optical aurora in eclipse on six nights between 2022 and 2024 using Keck I/HIRES. Spectra revealed 13 new auroral emissions not identified previously, tripling the total number of optical emissions lines detected at Io.
Zachariah Milby, Katherine de Kleer, Carl Schmidt   +2 more
doaj   +1 more source