Concept

Ross Sea

Related publications (11)

Atmospheric isoprene measurements reveal larger-than-expected Southern Ocean emissions

Isoprene is a key trace component of the atmosphere emitted by vegetation and other organisms. It is highly reactive and can impact atmospheric composition and climate by affecting the greenhouse gases ozone and methane and secondary organic aerosol format ...

2024

Southern Hemisphere atmospheric history of carbon monoxide over the late Holocene reconstructed from multiple Antarctic ice archives

Jérôme Chappellaz

Carbon monoxide (CO) is a naturally occurring atmospheric trace gas, a regulated pollutant, and one of the main components determining the oxidative capacity of the atmosphere. Evaluating climate–chemistry models under different conditions than today and c ...

2023

Southward shift in the zero-degree isotherm latitude (ZIL) in the Antarctic Peninsula

Michael Lehning

The seasonal movement of the zero-degree isotherm across the Southern Ocean and Antarctic Peninsula drives major changes in the physical and biological processes around maritime Antarctica. These include spatial and temporal shifts in precipitation phase, ...

2023

Arctic mercury cycling

Hélène Paule Angot

Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels, which are now being impacted by regional warming, with uncertain ecological consequences. This Review presents a comprehensive assessment of the present-day total Hg mas ...

2022

Changes in snow distribution and surface topography following a snowstorm on Antarctic sea ice

Michael Lehning, Katherine Colby Leonard, Ernesto Trujillo Gomez

Snow distribution over sea ice is an important control on sea ice physical and biological processes. We combine measurements of the atmospheric boundary layer and blowing snow on an Antarctic sea ice floe with terrestrial laser scanning to characterize a t ...

Wiley-Blackwell2016

Study of snow-atmosphere interactions over an Antarctic surface using large eddy simulations coupled with a Lagrangian stochastic model

Michael Lehning, Marc Parlange, Katherine Colby Leonard, Francesco Comola, Ernesto Trujillo Gomez, Marco Giovanni Giometto

The need for a better understanding of fluid and morphodynamic processes over Antarctic sea ice motivates the development of detailed models of small-scale snow-atmosphere interactions. At large scales, these interactions drive spatial patterns of snow dis ...

2015

Wind-driven snow distribution patterns over an Antarctic ice floe

Michael Lehning, Katherine Colby Leonard, Ernesto Trujillo Gomez

Sea ice, snow and atmosphere interactions are major drivers of the spatial distribution of snow over sea ice in polar regions. Here, we combine measurements of the wind flow, atmospheric conditions and blowing snow at two locations on an Antarctic sea ice ...

2015

Seasonal evolution of snow cover on Antarctic sea ice

Katherine Colby Leonard, Ernesto Trujillo Gomez

Snow cover on Antarctic sea ice plays a key role in the evolution of ice thickness, its estimation from space-borne altimeters, and structuring of sea ice ecosystems. Yet until recently, there have been very few continuous observations of the seasonal evol ...

2015

Direct effects of dominant winds on residence and travel times in the wide and open lacustrine embayment: Vidy Bay (Lake Geneva, Switzerland)

David Andrew Barry, Tamar Kohn, Ulrich Lemmin, Roham Bakhtyar, Florence Bonvin, Amir Mehdi Razmi

Numerical simulations were carried out to determine the residence (or flushing) time of water in Vidy Bay (north shore of Lake Geneva) for different meteorological conditions. A hydrodynamic model (Delft3DFLOW) was applied to simulate the flow field in the ...

Springer Verlag2014

LES modeling of wind over Antarctic snow-ice formations using a dynamic surface roughness approach.

Michael Lehning, Marc Parlange, Katherine Colby Leonard, Charles Vivant Ignacio Meneveau, Ernesto Trujillo Gomez, Marco Giovanni Giometto

Wind surface drag over sea-ice is a primary control on sea-ice flow patterns and deformations at scales that are important for climate and weather prediction models. Here, we perform a series of Large Eddy Simulations (LES) of fully developed flow over hig ...

2013

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