Results 11 to 20 of about 2,581 (220)

Balloon-borne stratospheric BrO measurements: comparison with Envisat/SCIAMACHY BrO limb profiles [PDF]

Atmospheric Chemistry and Physics, 2006
For the first time, results of four stratospheric BrO profiling instruments, are presented and compared with reference to the SLIMCAT 3-dimensional chemical transport model (3-D CTM).
M. Dorf, H. Bösch, H. Bösch, A. Butz, C. Camy-Peyret, M. P. Chipperfield, A. Engel, F. Goutail, K. Grunow, F. Hendrick, S. Hrechanyy, B. Naujokat, J.-P. Pommereau, M. Van Roozendael, C. Sioris, F. Stroh, F. Weidner, K. Pfeilsticker   +17 more
doaj   +2 more sources

The isotopic composition of methane in the stratosphere: high-altitude balloon sample measurements [PDF]

Atmospheric Chemistry and Physics, 2011
The isotopic composition of stratospheric methane has been determined on a large suite of air samples from stratospheric balloon flights covering subtropical to polar latitudes and a time period of 16 yr.
T. Röckmann, M. Brass, R. Borchers, A. Engel   +3 more
doaj   +3 more sources

A Novel Technique for Predicting the Thermal Behavior of Stratospheric Balloon [PDF]

International Journal of Aerospace Engineering, 2018
This paper is devoted to introduce a novel method of the operational matrix of integration for Legendre wavelets in order to predict the thermal behavior of stratospheric balloons on float at high altitude in the stratosphere.
Yunpeng Ma, Jun Huang, Mingxu Yi
doaj   +2 more sources

Telemetry system for research stratospheric balloon [PDF]

2017 International Conference on Applied Electronics (AE), 2017
The paper presents telemetry system for stratospheric balloon mission based on the UHF transceivers designed for Internet of Things. The system operates in 869.5 MHz frequency band. The system uses very short packet without channel coding that can be successfully received and decoded under low signal to noise ratio.
Puričer, Pavel, Kovář, Pavel, Mikeš, Jan, Kákona, Jakub   +3 more
openaire   +3 more sources

New retrieval of BrO from SCIAMACHY limb: an estimate of the stratospheric bromine loading during April 2008 [PDF]

Atmospheric Measurement Techniques, 2013
We present a new retrieval of stratospheric BrO (bromine monoxide) from channel 2 SCIAMACHY (SCanning Imaging Absorption spectrometer for Atmospheric CHartographY) limb observations.
J. P. Parrella, K. Chance, R. J. Salawitch, T. Canty, M. Dorf, K. Pfeilsticker   +5 more
doaj   +1 more source

Aerodynamic Drag Analysis of Superpressure and Zero Pressure Balloons using Large Eddy Simulations (LES) [PDF]

Journal of Applied Fluid Mechanics
Stratospheric balloons are an essential part of the scientific research community. In previous stratospheric balloon models used for trajectory prediction and station-keeping, the aerodynamic drag has usually been modeled as similar to that of a sphere ...
B. Lohani, C. Mascarenhas
doaj   +1 more source

Diurnal variations of BrONO₂ observed by MIPAS-B at midlatitudes and in the Arctic [PDF]

Atmospheric Chemistry and Physics, 2017
The first stratospheric measurements of the diurnal variation in the inorganic bromine (Bry) reservoir species BrONO2 around sunrise and sunset are reported.
G. Wetzel, H. Oelhaf, M. Höpfner, F. Friedl-Vallon, A. Ebersoldt, T. Gulde, S. Kazarski, O. Kirner, A. Kleinert, G. Maucher, H. Nordmeyer, J. Orphal, R. Ruhnke, B.-M. Sinnhuber   +13 more
doaj   +1 more source

Magnetic measurements in the stratosphere and their role in the studies of magnetic field of the Earth

Геофизический журнал, 2016
Listed non-exhaustive list of tasks stratospheric magnetic surveys, at which decision the use of gradient measurements of the geomagnetic field on board a stratospheric balloon increases the accuracy of the research field of nature.
Yu. P. Tsvetkov, S. V. Filippov, V. V. Ivanov, O. M. Brekhov   +3 more
doaj   +1 more source

Observation of mesospheric air inside the arctic stratospheric polar vortex in early 2003 [PDF]

, 2005
During several balloon flights inside the Arctic polar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere.
Levin, Ingeborg, M. Pirre, Wetzel, G., I. Levin, T. Wetter, Levin, I., Schmidt, Ulrich (Prof. Dr.), Wetter, Thomas, Oelhaf, Hermann, Bönisch, Harald, Engel, A., Schmidt, U., Huret, Nathalie, Bönisch, H., N. Huret, Pirre, Michel, Oelhaf, H., H. Oelhaf, Schmidt, Ulrich, Reddmann, Thomas, Möbius, Tanja, K. Grunow, G. Wetzel, U. Schmidt, Wetter, T., Engel, Andreas, Haase, Hans-Peter, Grunow, Katja, H. Bönisch, A. Engel, T. Reddmann, Reddmann, T., H.-P. Haase, Möbius, T., Haase, H.-P., Wetzel, Gerald, Grunow, K., T. Möbius   +37 more
core   +1 more source

Time dependent profile retrieval of UV/vis absorbing radicals from balloon-borne limb measurements – a case study on NO₂ and O₃ [PDF]

Atmospheric Measurement Techniques, 2010
A new "Bayesian" minimization algorithm for the retrieval of the diurnal variation of UV/vis absorbing radicals (O3, NO2, BrO, OClO and HONO) from balloon-borne limb scattered skylight observations is discussed.
R. Schofield, A. Rozanov, J. Puķīte, C. Prados-Roman, S. Kühl, T. Deutschmann, M. Dorf, A. Butz, L. Kritten, K. Pfeilsticker   +9 more
doaj   +1 more source