News about Geophysics

Rounded stones on Mars evidence of flowing water

Observations by NASA's Mars rover Curiosity have revealed areas with gravel and pebbles that are characteristic of a former riverbed. Researchers, including members of the Niels Bohr Institute, have analysed their...

Jonas A. Haller

Title: Carbon isotopes of methane during the Medieval Climate Anomaly Supervisors: Reto Knutti and Thomas Blunier

Today's global warming follows more than 1000 years of colder climates

A new international study of past climate shows that the global temperature was getting colder and colder for more than 1000 years until the year 1900, after which global warming raised the temperature significantly in…

Significant contribution to sea-level rise

Glaciers at the edge of Greenland which are not connected to its huge ice sheet, or can be clearly separated from it, are contributing to sea-level rise much more than previously thought.

More hurricane surges in the future

How many extreme storm surges like that from Hurricane Katrina, which hit the U.S. coast in 2005, will there be as a result of global warming? New research from the Niels Bohr Institute show that there will be a tenfold…

Rasmus Anker Pedersen

Arctic Warming - The Effect of a Reduced Sea Ice Cover on the Vertical Structure of Warming Supervisors: Peter L. Langen, DMI and Eigil Kaas

Greenland ice cores reveal warm climate of the past

New research from the NEEM ice core drilling project in Greenland shows that the warm Eemian period - 130,000 and 115,000 years ago was warmer than previously thought.

Erik Warming Andersen

A Technique for Continuous Detection of Drill Liquid in Ice Cores Supervisors: Anders Svensson and Paul Vallelonga

Majbritt Westring Sørensen

Evaluation of the 20th Century Reanalysis for the Greenland area - using meteorological observations and ice core data Supervisor: Bo M. Vinther

Sebastian Bender

Measurement of air content in the Greenland ice sheet Supervisor: Bo M. Vinther

The final ice core

The termination of the NEEM deep drilling after 6 years is a big event.

Lea K. D. Sørensen

Oceanographic variability at a boulder reef in the Kattegat and surrounding waters Supervisor: Peter Ditlevsen

Ivana Cvijanovic

Abrupt climate change and high to low latitude teleconnections as simulated in climate models Academic supervisors: Eigil Kaas, Peter L. Langen

Giuliano Bertagna

Stratigraphic dating of Greenland glacial ice - Case study of Greenland stadial 22 Supervisor: Anders Svensson

Luca Foresta

An attempt of obtaining a chronologically correct reconstruction of the NEEM disturbed section Supervisor: Peter Ditlevsen

Astrid Schmidt

Ice Core Genetics - uncovering biodiversity from ancient ecosystems in Greenland and Antarctica ACADEMIC ADVISOR: Eske Willerslev

Mads D. Ellehøj

Ice-vapor equilibrium fractionation factor: Experimental investigations and possible impacts on the understanding of the hydrological cycles on Earth and Mars Supervisor: Sigfús J. Johnsen

Christo Buizert

The influence of firn air transport processes and radiocarbon production on gas records from polar firn and ice Academic supervisor: Prof. Thomas Blunier

Mai Winstrup

An automated method for annual layer counting in ice cores - and an application to visual stratigraphy data from the NGRIP ice core Academic supervisor: Anders Svensson

Vasileios Gkinis

High resolution water isotope data from ice cores Academic supervisor: Sigfús J. Johnsen

Anna Grube

Particulate air pollution and its characteristic sources in the high Arctic at Station Nord, N.E. Greenland. Supervisor: Peter Ditlevsen

A basal ice core with stones

Today the HT drill was used with the new and innovative carbide step cutter and they drilled through ice, sediments and rocks!

Bundis med sten i

I dag blev HT boret anvendt sammen med den nye og innovative carbid trin skærer, som borede sig gennem is, sedimenter og klippe!

David Balslev-Clausen

Application of cavity ring down spectroscopy to isotopic bio- geo- & climate-science & The development of a Mid-IR CRDS analyzer for continuous measurements of N2O isotopomers. Academic supervisors Prof. Dorthe…