Birds are a phenomenal story of evolutionary success. As modern-day dinosaur descendants, they occupy almost all environments and ecosystems around the globe, and are truly animals that capture our imaginations. However, how did they become so diverse, both in number and form? This is something only the fossil record can divine for us. Birds first …[Read More]
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GeoLog
Imaggeo on Mondays: An explosive cloud
One of the world’s most volcanically active regions is the Kamchatka Peninsula in eastern Russia. It is the subduction of the Pacific Plate under the Okhotsk microplate (belonging to the large North America Plate) which drives the volcanic and seismic hazard in this remote area. The surface expression of the subduction zone is the 2100 …[Read More]
Soil System Sciences
Monday paper: Bayesian calibration of a soil organic carbon model using Δ14C measurements of soil organic carbon and heterotrophic respiration as joint constraints
Ahrens, B., Reichstein, M., Borken, W., Muhr, J., Trumbore, S. E., and Wutzler, T.: Bayesian calibration of a soil organic carbon model using Δ14C measurements of soil organic carbon and heterotrophic respiration as joint constraints, Biogeosciences, 11, 2147-2168, doi:10.5194/bg-11-2147-2014, 2014. Abstract Soils of temperate forests store significant amounts of organic matter and are considered to be net sinks of atmospheric CO2. …[Read More]
Soil System Sciences
Monday paper: Impacts of climate variability on wetland salinization in the North American prairies
Nachshon U, Ireson A, van der Kamp G, Davies SR, Wheater HS. 2014. Impacts of climate variability on wetland salinization in the North American prairies. Hydrology and Earth System Sciences 18, 1251-1263. DOI: 10.5194/hess-18-1251-2014. Abstract The glaciated plains of the North American continent, also known as the “prairies”, are a complex hydrological system characterized by hummocky …[Read More]
Seismology
ECGS & ESC/EAEE Joint Workshop: Earthquake and Induced Multi-Risk Early Warning and Rapid Response
A joint workshop about earthquake and induced risk, early warning and rapid response is going to take place in Luxembourg, between the 18th and the 20th of November this year. The long list of researchers involved in the scientific committee, invited lecturers, and, the number of organisations supporting this workshop make this meeting one not to be missed. The …[Read More]
Seismology
Visual simulations of seismic waves
Sometimes it is not easy to understand (or explain) how seismic waves propagate through Earth. Recently, a number of very nice graphic examples have been uploaded on vimeo.com. The videos show the basic concepts of a travelling seismic wave such as the propagation of waves from a central source (similar to the ripples in a pond after a stone …[Read More]
GeoLog
Geosciences Column: The quest for life on Mars
Understanding where we come from and whether Earth is the only habitable planet in the Solar System has been a long standing conundrum in science. Partly because it is our nearest neighbour, partly because of its past and current similarities with our own home, Mars, the red planet, is a likely contender in the quest …[Read More]
VolcanicDegassing
Landslides, lake tsunamis and the tragedy of Lago Cabrera
Fifty years ago, on 19th February 1965, a rock and ice landslide fell from the summit face of Volcan Yate in southern Chile. It was mid-summer, and was one of the warmest and wettest February records in that part of Chile on record. The debris slid rapidly down a narrow gully, losing at least 1500 metres in elevation, …[Read More]
Geomorphology
Our EGU session died, what went wrong?
Have you ever had this experience? You develop a session which you think could be such a great platform or a subject that definitely interests a lot of people and then only a few people register…this happened to Jan, me, and several others this year and our proposed sessions (GM1.2 Emerging research fields in geomorphology and GM …[Read More]
GeoLog
Science Policy Fellowship at the EGU – open for applications!
Do you have an interest in science policy and the geosciences? Then this fellowship might be just right for you! EGU fellowships offer early career researchers the opportunity to gain experience in science management and communication in a large scientific union through a targeted assignment at the EGU Executive Office in Munich, Germany. Fellows are …[Read More]