Concept

Abrupt climate change

Related publications (128)

The effect of abrupt climatic warming on biogeochemical cycling and N2O emissions in a terrestrial ecosystem

The large, rapid increase in atmospheric N2O concentrations that occurred concurrent with the abrupt warming at the end of the Last Glacial period might have been the result of a reorganization in global biogeochemical cycles. To explore the sensitivity of ...

Elsevier Science Bv2013

Long-term pan evaporation observations as a resource to understand the water cycle trend: case studies from Australia

Jed Oliver Kaplan

Acceleration of the global water cycle over recent decades remains uncertain because of the high inter-annual variability of its components. Observations of pan evaporation (E-pan), a proxy of potential evapotranspiration (ETp), may help to identify trends ...

Taylor & Francis Ltd2013

Peak and persistent excess of genetic diversity following an abrupt migration increase

Séverine Vuilleumier Varisco

Genetic diversity is essential for population survival and adaptation to changing environments. Demographic processes (e.g., bottleneck and expansion) and spatial structure (e.g., migration, number, and size of populations) are known to shape the patterns ...

2013

Continuous methane measurements from a late Holocene Greenland ice core: Atmospheric and in-situ signals

Jérôme Chappellaz

The stable carbon isotopic signature of carbon dioxide (δ13CO2) measured in the air occlusions of polar ice provides important constraints on the carbon cycle in past climates. In order to exploit this information for previous glacial periods, one must use ...

Elsevier BV2013

Downscaling a global climate model to simulate climate change over the US and the implication on regional and urban air quality

Athanasios Nenes, Pengfei Liu

Climate change can exacerbate future regional air pollution events by making conditions more favorable to form high levels of ozone. In this study, we use spectral nudging with the Weather Research and Forecasting (WRF) model to downscale NASA earth system ...

2013

Evaluation of biospheric components in earth system models using modern and palaeo-observations: The state-of-the-art

Jérôme Chappellaz

We investigate for the first time the loss and alteration of past atmospheric information from air trapping mechanisms under low-accumulation conditions through continuous CH4 (and CO) measurements. Methane concentration changes were measured over the Dans ...

Copernicus GmbH2013

A 60 yr record of atmospheric carbon monoxide reconstructed from Greenland firn air

Jérôme Chappellaz

During the last glacial cycle, Greenland temperature showed many rapid temperature variations, the so-called Dansgaard-Oeschger (DO) events. The past atmospheric methane concentration closely followed these temperature variations, which implies that the wa ...

Copernicus GmbH2013

The Antarctic ice core chronology (AICC2012): An optimized multi-parameter and multi-site dating approach for the last 120 thousand years

Jérôme Chappellaz

The deep polar ice cores provide reference records commonly employed in global correlation of past climate events. However, temporal divergences reaching up to several thousand years (ka) exist between ice cores over the last climatic cycle. In this contex ...

Copernicus GmbH2013

The response of atmospheric nitrous oxide to climate variations during the last glacial period

Jérôme Chappellaz

Two deep ice cores from central Greenland, drilled in the 1990s, have played a key role in climate reconstructions of the Northern Hemisphere, but the oldest sections of the cores were disturbed in chronology owing to ice folding near the bedrock. Here we ...

Springer Science and Business Media LLC2013

High-resolution glacial and deglacial record of atmospheric methane by continuous-flow and laser spectrometer analysis along the NEEM ice core

Jérôme Chappellaz, Daniele Romanini

The Greenland NEEM (North Greenland Eemian Ice Drilling) operation in 2010 provided the first opportunity to combine trace-gas measurements by laser spectroscopic instruments and continuous-flow analysis along a freshly drilled ice core in a field-based se ...

Copernicus GmbH2013

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