The lapse rate and the cold point tropopause in the Asian Summer Monsoon anticyclone [PDF]
Atmospheric Chemistry and PhysicsTropospheric and stratospheric airmasses are separated by the tropopause. Here we investigate the lapse rate tropopause and the cold point tropopause in the Asian summer monsoon anticyclone (ASMA) based on high-altitude airborne measurements in summer ...
R. Müller +5 more
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The potential of drone observations to improve air quality predictions by 4D-Var [PDF]
Atmospheric Chemistry and PhysicsVertical profiles of atmospheric pollutants, acquired by uncrewed aerial vehicles (UAVs, known as drones), represent a new type of observation that can help to fill the existing observation gap in the planetary boundary layer (PBL). This article presents
H. Erraji +6 more
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Reconstructing ice-sheet accumulation rates at ridge B, East Antarctica [PDF]
, 2004 Understanding how ice sheets responded to past climate change is fundamental to forecasting how they will respond in the future. Numerical models calculating the evolution of ice sheets depend upon accumulation data, which are principally available from ...
Payne, Antony J +8 more
core +1 more source
A novel conceptual model for Dansgaard–Oeschger event dynamics based on ice-core data [PDF]
Climate of the PastThis study introduces a novel dynamical systems model designed to capture the highly non-periodic nature of Dansgaard–Oeschger (DO) events. Such events are difficult to model adequately due to their variable durations (some lasting around 1 century ...
J. O. Melcher +5 more
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Global perspectives on nitrate aerosol dynamics: a comprehensive sensitivity analysis [PDF]
Atmospheric Chemistry and PhysicsIn recent years, nitrate aerosols have become a dominant component of atmospheric composition, surpassing sulfate in both concentration and climatic impact. However, accurately simulating nitrate remains a major challenge for global models due to complex
A. Milousis +5 more
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Kinetics of the reactions of OH with CO, NO, and NO2 and of HO2 with NO2 in air at 1 atm pressure, room temperature, and tropospheric water vapour concentrations [PDF]
Atmospheric Chemistry and PhysicsThe termolecular reactions of hydroxyl radicals (OH) with carbon monoxide (CO), nitric oxide (NO), and nitrogen dioxides (NO2) and the termolecular reaction of hydroperoxy radicals (HO2) with NO2 greatly impact the atmospheric oxidation efficiency.
M. Rolletter +5 more
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Antarctic sea ice trends and its response to the Southern annular mode [PDF]
, 2009 Includes bibliographical references (leaves 37-42).Sea ice covers vast regions of the Southern Ocean and impacts on the climate as well as the plant and animal life of the region.
Collins, Charine
core +1 more source
On the occurrence of annual layers in Dome Fuji ice core early Holocene ice [PDF]
Climate of the Past, 2015 Whereas ice cores from high-accumulation sites in coastal Antarctica clearly demonstrate annual layering, it is debated whether a seasonal signal is also preserved in ice cores from lower-accumulation sites further inland and particularly on the East ...
A. Svensson +15 more
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Identifying orographic gravity waves in 3D observations via backward ray tracing [PDF]
Atmospheric Chemistry and PhysicsAtmospheric gravity waves (GWs) generated by orography, commonly referred to as mountain waves (MWs), play a key role in driving atmospheric circulation and in modulating phenomena such as sudden stratospheric warmings (SSWs). Their contribution, however,
S. Rhode, P. Preusse, J. Ungermann
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How does sea ice influence δ18O of Arctic precipitation? [PDF]
Atmospheric Chemistry and Physics, 2017 This study investigates how variations in Arctic sea ice and sea surface conditions influence δ18O of present-day Arctic precipitation. This is done using the model isoCAM3, an isotope-equipped version of the National Center for Atmospheric Research ...
A.-K. Faber +3 more
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