Results 31 to 40 of about 239,563 (249)

Balloon-borne Cosmic Microwave Background experiments [PDF]

EPJ Web of Conferences, 2019
Stratospheric balloon experiments play a unique role in current Cosmic Microwave Background (CMB) studies. CMB research has entered a precision phase, harvesting the detailed properties of its anisotropy, polarization and spectrum, at incredible ...
Masi Silvia, Coppolecchia A., Battistelli E., de Bernardis P., Columbro F., D’Alessandro G., Lamagna L., Paiella A., Piacentini F., Presta G.   +9 more
doaj   +1 more source

Intercomparison of in situ water vapor balloon-borne measurements from Pico-SDLA H₂O and FLASH-B in the tropical UTLS [PDF]

Atmospheric Measurement Techniques, 2016
In this paper we compare water vapor mixing ratio measurements from two quasi-parallel flights of the Pico-SDLA H2O and FLASH-B hygrometers. The measurements were made on 10 February 2013 and 13 March 2012, respectively, in the tropics near Bauru, São ...
M. Ghysels, E. D. Riviere, S. Khaykin, C. Stoeffler, N. Amarouche, J.-P. Pommereau, G. Held, G. Durry   +7 more
doaj   +1 more source

Arctic stratospheric dehydration – Part 1: Unprecedented observation of vertical redistribution of water [PDF]

Atmospheric Chemistry and Physics, 2013
We present high-resolution measurements of water vapour, aerosols and clouds in the Arctic stratosphere in January and February 2010 carried out by in situ instrumentation on balloon sondes and high-altitude aircraft combined with satellite observations.
S. M. Khaykin, I. Engel, H. Vömel, I. M. Formanyuk, R. Kivi, L. I. Korshunov, M. Krämer, A. D. Lykov, S. Meier, T. Naebert, M. C. Pitts, M. L. Santee, N. Spelten, F. G. Wienhold, V. A. Yushkov, T. Peter   +15 more
doaj   +1 more source

Probing stratospheric transport and chemistry with new balloon and aircraft observations of the meridional and vertical N2O isotope distribution [PDF]

, 2006
A comprehensive set of stratospheric balloon and aircraft samples was analyzed for the position-dependent isotopic composition of nitrous oxide (N2O). Results for a total of 220 samples from between 1987 and 2003 are presented, nearly tripling the number
Kaiser, Jan, Engel, A., Röckmann, Thomas, Borchers, Reinhard, Kaiser, J., Borchers, R., Röckmann, T., Engel, Andreas   +7 more
core   +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

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

Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]

, 2006
A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus, Markus Knapek, Martin Brechtelsbauer, Joachim Horwath, Horwath, Joachim, Wilkerson, Brandon, Brandon Wilkerson, Brechtelsbauer, Martin, Bernhard Epple, Epple, Bernhard   +9 more
core   +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

Light Pollution Mapping from a Stratospheric High-Altitude Balloon Platform

, 2021
The NITELite (Night Imaging of Terrestrial Environments Lite) system is a method of collecting regional-scale light emissions data from a latex high-altitude balloon (LHAB) platform. An LHAB can reach altitudes of 25-30km from where the nighttime imaging
Ken Walczak, G. Gyuk, Jesus Garcia, Cynthia Tarr   +3 more
semanticscholar   +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