Concept
Antarctique
Publications associées (73)
A Case Study on Drivers of the Isotopic Composition of Water Vapour at the Coast of East Antarctica
Michael Lehning, Armin Sigmund, Riqo Chaar
Stable water isotopes (SWIs) contain valuable information on the past climate and phase changes in the hydrologic cycle. Recently, vapour measurements in the polar regions have provided new insights into the effects of snow-related and atmospheric processe ...
2023A 2000-year temperature reconstruction on the East Antarctic plateau from argon-nitrogen and water stable isotopes in the Aurora Basin North ice core
The temperature of the Earth is one of the most important climate parameters. Proxy records of past climate changes, in particular temperature, represent a fundamental tool for exploring internal climate processes and natural climate forcings. Despite the ...
COPERNICUS GESELLSCHAFT MBH2023Southern Hemisphere atmospheric history of carbon monoxide over the late Holocene reconstructed from multiple Antarctic ice archives
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 ...
2023Doppler spectra collected by weather and cloud radars during the POPE 2020 campaign at Princess Elisabeth Antarctica
This repository contains the datasets of Doppler spectra collected by two meteorological radars in the vicinity of the Belgian research base Princess Elisabeth Antarctica (PEA). The measurement campaign has been conducted by the Environmental Remote S ...
EPFL Infoscience2023Preprocessing Antarctic Weather Station (AWS) data in python
Michael Lehning, Franziska Gerber
There are many sources providing atmospheric weather station data for the Antarctic continent. However, variable naming, timestamps and data types are highly variable between the different sources. The published python code intends to make processing of di ...
EPFL Infoscience2022Aerobiology over the Southern Ocean – implications for bacterial colonization of Antarctica
Parts of the Antarctic are experiencing dramatic ecosystem change due to rapid and record warming, which may weaken biogeographic boundaries and dispersal barriers, increasing the risks of biological invasions. In this study, we collected air samples from ...
2022Substantial contribution of iodine to Arctic ozone destruction
Julia Schmale, Ivo Fabio Beck, Hélène Paule Angot, Lubna Dada
Unlike bromine, the effect of iodine chemistry on the Arctic surface ozone budget is poorly constrained. We present ship-based measurements of halogen oxides in the high Arctic boundary layer from the sunlit period of March to October 2020 and show that io ...
2022Radar and ground-level measurements of clouds and precipitation collected during the POPE 2020 campaign at Princess Elisabeth Antarctica
The datasets presented in this article were collected during a four-months measurement campaign at the Belgian research base Princess Elisabeth Antarctica (PEA). The campaign, named PEA Orographic Precipitation Experiment (POPE), was conducted by the Envir ...
2022A fascinating trip to Antarctica
Researchers from EPFL have been joining the Belgian Antarctic Research Expedition to Princess Elisabeth Antarctica Station every year since 2016. Armin Sigmund, a PhD student in the Laboratory of Cryospheric Sciences, recently participated in the expeditio ...
2021How important are snow transport and sublimation for the mass balance of Antarctica?
Varun Sharma, Michael Lehning, Wolf Hendrik Huwald, Daniela Brito Melo, Armin Sigmund
This presentation is part of the session 'Contributing to climate science through research in polar and high-altitude regions: the early-career researchers' point of view' in the Geneva Cryosphere HUB of the COP26 conference. We discuss the mass balance of ...
2021