Results 31 to 40 of about 112,977 (167)

EUSO-BALLOON a pathfinder for detecting UHECR's from the edge of space

EPJ Web of Conferences, 2013
EUSO-Balloon has been conceived as a pathfinder mission for JEM-EUSO, to perform an end-to-end test of the subsystems and components, and to prove the global detection chain while improving our knowledge of the atmospheric and terrestrial UV background ...
Scotti V., Szabelski J., Roudil G., Frías M.D. Rodríguez, Ricci M., Picozza P., Prévôt G., Prieto H., Park I.H., Parizot E., Osteria G., Mot B., Kawasaki Y., Medina-Tanco G., Jung A., Haungs A., Gorodetzky Ph., Ebersoldt A., Ebisuzaki T., Dupieux M., Casolino M., Distratis G., Bertaina M., Cafagna F., Bayer J., Barrillon P., Adams J.H., Santangelo A., Dagoret S., von Ballmoos P., Takizawa Y., Tsuno K.   +31 more
doaj   +1 more source

NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0: Stratospheric Composition

Journal of Advances in Modeling Earth Systems, 2022
The NASA Goddard Earth Observing System (GEOS) Composition Forecast (GEOS‐CF) provides recent estimates and 5‐day forecasts of atmospheric composition to the public in near‐real time.
K. E. Knowland, C. A. Keller, P. A. Wales, K. Wargan, L. Coy, M. S. Johnson, J. Liu, R. A. Lucchesi, S. D. Eastham, E. Fleming, Q. Liang, T. Leblanc, N. J. Livesey, K. A. Walker, L. E. Ott, S. Pawson   +15 more
doaj   +1 more source

Inter-comparison of stratospheric O₃ and NO₂ abundances retrieved from balloon borne direct sun observations and Envisat/SCIAMACHY limb measurements [PDF]

Atmospheric Chemistry and Physics, 2006
Stratospheric O3 and NO2 abundances measured by different remote sensing instruments are inter-compared: (1) Line-of-sight absorptions and vertical profiles inferred from solar spectra in the ultra-violet (UV), visible and infrared (IR) wavelength ...
A. Butz, A. Butz, H. Bösch, H. Bösch, C. Camy-Peyret, M. Chipperfield, M. Dorf, G. Dufour, G. Dufour, K. Grunow, P. Jeseck, S. Kühl, S. Payan, I. Pepin, J. Pukite, J. Pukite, A. Rozanov, C. von Savigny, C. Sioris, T. Wagner, F. Weidner, K. Pfeilsticker   +21 more
doaj  

Mean age of stratospheric air derived from AirCore observations [PDF]

Atmospheric Chemistry and Physics, 2017
Mean age of stratospheric air can be derived from observations of sufficiently long-lived trace gases with approximately linear trends in the troposphere.
A. Engel, H. Bönisch, H. Bönisch, M. Ullrich, R. Sitals, O. Membrive, F. Danis, C. Crevoisier   +7 more
doaj   +1 more source

1 Air Drag on a Stratospheric Balloon in Tropical Regions [PDF]

, 2015
Stratospheric balloons are popular for scientific applications as they can carry heavy payloads to perform observations for a long duration. However, for practical applications, a major challenge is the control of the trajectories of the balloons as well
Kian-meng Lim, Qiang Sun, Lim, Kian-Meng, Sun, Qiang, Heow Pueh Lee, Lee, Heow Pueh, Khoo, Boo Cheong, Boo Cheong Khoo   +7 more
core   +1 more source

Impact of Weak‐Constraint Four‐Dimensional Variational data assimilation on the prediction of a sudden stratospheric warming event in 2024

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The Weak‐Constraint Four‐Dimensional Variational (WC‐4DVAR) system markedly improved the analysis and forecasting of the 2024 sudden stratospheric warming (SSW) event. It reduced biases and enhanced 7–9 day predictions of temperature across the SSW life cycle, with the most pronounced gains for winds also during the critical onset period.
Shaoying Li, Weimin Zhang, Shuo Ma, Bainian Liu, Yanlai Zhao, Xiaoqun Cao   +5 more
wiley   +1 more source

A large-area blackbody for in-flight calibration of an infrared interferometer deployed on board a long-duration balloon for stratospheric research [PDF]

Atmospheric Measurement Techniques, 2018
The deployment of the imaging Fourier Transform Spectrometer GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) on board a long-duration balloon for stratospheric research requires a blackbody for in-flight calibration in order to
F. Olschewski, C. Monte, A. Adibekyan, M. Reiniger, B. Gutschwager, J. Hollandt, R. Koppmann   +6 more
doaj   +1 more source

EnKF and expectation‐maximization based parameter estimation of a convective gravity‐wave parameterization using Strateole 2 constant‐level balloon data

Quarterly Journal of the Royal Meteorological Society, EarlyView.
An offline methodology is applied to estimate parameters of a convective gravity‐wave scheme using momentum flux (MF) observations from constant‐level balloons (left panels: pdfs of east and west MFs in green from observations and black from EnKF). The approach integrates an ensemble Kalman filter with an expectation‐maximization algorithm and permits ...
F. Lott, P. Tandeo, M. Pulido, D. Bardet
wiley   +1 more source

GLORIA@HEMERA large stratospheric balloon campaign Timmins/Canada August 2022

, 2023
Video from GoPro images taken in limb-view during the flight of the GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) infrared spectrometer on a stratospheric balloon during the HEMERA measurement campaign from Timmins/Canada in ...
Ungermann, Jörn, Piesch, Christof, Woiwode, Wolfgang, Höpfner, Michael, Gulde, Thomas, Kretschmer, Erik, Johansson, Sören, Neubert, Tom, Friedl-Vallon, Felix, Kleinert, Anne, Wetzel, Gerald, Maucher, Guido, Preusse, Peter   +12 more
core   +1 more source

Stratospheric Aerosol From Above: Laser‐Ablation Mass Spectrometer Samples Polar Vortex Air for the First Time

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract The JGR paper by Lawler et al. (2025, https://doi.org/10.1029/2025jd043530) marks a significant and historic first, the PALMS single‐particle chemical analysis sampling deep stratospheric Arctic vortex air for the first time. The analysis finds ∼90% of sulfate aerosol particles in the deepest stratosphere air (100–130 ppb N2O) are meteoric ...
G. W. Mann, R. Weigel, C. G. Bardeen, L. R. Marshall, C. V. Brodowsky, M. Norgren, O. B. Toon   +6 more
wiley   +1 more source