Results 31 to 40 of about 345,028 (236)

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

open access: yesAtmospheric 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   +9 more
doaj   +1 more source

PMC Turbo: Studying Gravity Wave and Instability Dynamics in the Summer Mesosphere Using Polar Mesospheric Cloud Imaging and Profiling From a Stratospheric Balloon

open access: yesJournal of Geophysical Research - Atmospheres, 2019
The Polar Mesospheric Cloud Turbulence (PMC Turbo) experiment was designed to observe and quantify the dynamics of small‐scale gravity waves (GWs) and instabilities leading to turbulence in the upper mesosphere during polar summer using instruments ...
D. Fritts   +16 more
semanticscholar   +1 more source

Heavy hydrogen in the stratosphere [PDF]

open access: yes, 2003
We report measurements of the deuterium content of molecular hydrogen (H2) obtained from a suite of air samples that were collected during a stratospheric balloon flight between 12 and 33 km at 40º N in October 2002. Strong deuterium enrichments of up to
Rhee, T.S.   +10 more
core   +2 more sources

The stratospheric quasi-biennial oscillation observed in the semidiurnal ground pressure data [PDF]

open access: yesAnnales Geophysicae, 1995
Ground pressure observations made at Macao (22°N, 113°E) from 1953 to 1991 are analyzed and compared with the stratospheric quasi-biennial oscillation (QBO) data obtained during the same interval.
H. Teitelbaum, F. Vial, P. Bauer
doaj   +1 more source

Stratospheric dust collection by DUSTER (Dust in The Upper Stratosphere Tracking Experiment and Retrieval), a balloon-borne instrument, and laboratory analyses of collected dust. [PDF]

open access: yes, 2010
The subject of this work is focused on the study of stratospheric dust with DUSTER (Dust in the Upper Stratosphere Tracking Experiment and Retrieval) a balloon-borne instrument.
Ciucci, Alessandra
core   +1 more source

Seasonal and annual variations of aerosol concentrations in the troposphere and stratosphere over Syowa Station observed by a balloon-borne optical particle counter

open access: yesAntarctic Record, 2010
This report summarizes observations of tropospheric and stratospheric aerosols by a balloon-borne optical particle counter (Aerosol sonde) performed at Syowa Station from April 1997 to January 2008.
Nobuhiko Kizu   +4 more
doaj   +1 more source

Evaluation of Antarctic Ozone Profiles derived from OMPS-LP by using Balloon-borne Ozonesondes

open access: yesScientific Reports, 2021
Predicting radiative forcing due to Antarctic stratospheric ozone recovery requires detecting changes in the ozone vertical distribution. In this endeavor, the Limb Profiler of the Ozone Mapping and Profiler Suite (OMPS-LP), aboard the Suomi NPP ...
Edgardo Sepúlveda   +19 more
doaj   +1 more source

Design of Attitude Control System for Stratospheric Balloon Gondolas by Sliding Mode Control

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
This paper reports consideration of efficient design method for the azimuthal-attitude control of stratospheric balloon gondolas utilizing only a motorized pivot.
T. Nakano
semanticscholar   +1 more source

Liquid particle composition and heterogeneous reactions in a mountain wave Polar Stratospheric Cloud. [PDF]

open access: yes, 2005
Mountain wave polar stratospheric clouds (PSCs) were detected on 8 February 2003 above the Scandinavian Mountains by in-situ instruments onboard the M55 Geophysica aircraft.
M. J. Mahoney   +22 more
core   +5 more sources

Acoustic Waves From a Distant Explosion Recorded on a Continuously Ascending Balloon in the Middle Stratosphere

open access: yesGeophysical Research Letters, 2023
A helium‐filled mylar balloon carrying a smartphone and infrasound sensors ascended to a stratospheric height of 35 km over the surface detonation of a chemical explosive, with a total acoustic propagation distance of 127 km.
S. K. Popenhagen   +3 more
doaj   +1 more source

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