Results 121 to 130 of about 239,563 (249)

Remarks to the paper “The tropopause: discovery, definition and demarcation” by K. P. Hoinka (Meteorol. Z., N.F. 6, 281-303, 1997)

open access: yesMeteorologische Zeitschrift, 1999
Some additional remarks are given to Hoinka’s paper concerning especially the first stratospheric temperature profiles obtained from sounding balloons since 1894, but misinterpreted by the contemporary authorities for some years.
Karl-Heinz Bernhardt
doaj   +1 more source

A Simplified Balloon Payload For Stratospheric Conductivity Measurements [PDF]

open access: yes, 2021
There are still many open questions about the Earth's atmosphere, and to answer them scientists need data from experimental observations. Stratospheric conductivity measurements are a vital component of global electric circuit research; however, in the ...
Ulinski, Alexandra R. B.
core  

Design, Prototyping and Stratospheric Launch of CubeSats for University Competition

open access: yesJournal of Aerospace Technology and Management, 2023
This work presents the design and prototyping of two 1U standard CubeSats for the First Brazilian MCTI Satellite Olympiad, launching one in a stratospheric helium-filled balloon.
Diego Anestor Coutinho   +6 more
doaj  

Stratospheric aerosol characteristics from SCIAMACHY limb observations: two-parameter retrieval [PDF]

open access: yesAtmospheric Measurement Techniques
Stratospheric aerosols play a key role in atmospheric chemistry and climate. Their particle size is a crucial factor controlling the microphysical, radiative, and chemical aerosol processes in the stratosphere.
C. Pohl   +8 more
doaj   +1 more source

Determination of the distribution of halocarbons in the tropical upper troposphere and stratosphere [PDF]

open access: yes, 2008
The aim of this thesis was to investigate distributions of 32 volatile chlorinated and/or brominated halocarbons that are currently believed to be present in the tropical upper troposphere and stratosphere and to contribute to stratospheric ozone ...
Laube, Johannes Christian
core  

Microphysical Simulation of the 2022 Hunga Volcano Eruption Using a Sectional Aerosol Model

open access: yesGeophysical Research Letters
Approximately 150 Tg of water vapor and 0.42 Tg of sulfur dioxide were injected directly into the stratosphere by the January 2022 Hunga volcanic eruption, which represents the largest water vapor injection in the satellite era. A comparison of numerical
Chenwei Li   +17 more
doaj   +1 more source

Technical note: First spectral measurement of the Earth's upwelling emission using an uncooled wideband Fourier transform spectrometer [PDF]

open access: yesAtmospheric Chemistry and Physics, 2006
The first spectral measurement of Earth's emitted radiation to space in the wideband range from 100 to 1400 cm−1 with 0.5 cm−1 spectral resolution is presented.
L. Palchetti   +9 more
doaj  

First remote sensing measurements of ClOOCl along with ClO and ClONO2 in activated and deactivated Arctic vortex conditions using new ClOOCl IR absorption cross sections [PDF]

open access: yes, 2009
. Active chlorine species play a dominant role in the catalytic destruction of stratospheric ozone in the polar vortices during the late winter and early spring seasons. Recently, the correct understanding of the ClO dimer cycle was challenged by the
Wagner, Georg   +32 more
core   +1 more source

A novel, balloon-borne UV–Vis spectrometer for direct sun measurements of stratospheric bromine [PDF]

open access: yesAtmospheric Measurement Techniques
We report on a novel, medium-weight (∼ 25 kg) optical spectrometer coupled to an automated sun tracker for direct sun observations from azimuth-controlled balloon platforms weighing approximately 12 kg.
K. Voss   +13 more
doaj   +1 more source

Validation of MIPAS temperature profiles by stratospheric balloon and aircraft measurements [PDF]

open access: yes, 2004
We report on the validation of profiles of the MIPAS processor of ESA version 4.61 with correlative data derived from balloon and aircraft measurements. The activities were part of the ENVISAT Stratospheric Aircraft and Balloon Campaign (ESABC) [1].
Blom, C. E.   +8 more
core   +2 more sources

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