The EGU Election Autumn 2019 for the next EGU President, General Secretary, and Division Presidents will take place from 1 to 30 November 2019. You are kindly asked to propose a candidate to any of these vacancies by 15 September 2019. You are welcome and encouraged to nominate yourself.
EGU’s Committee on Education aims to provide support for higher education, from organising workshops to providing networking opportunities for all those teaching geoscience in higher education. We invite PhD students, postgraduates, research fellows, academic staff and any others teaching geoscience in higher education to fill in a short survey to help us understand the role EGU could play in further supporting higher education.
The call for session proposals for the EGU General Assembly 2020 is now open. Until 5 September you can suggest new scientific sessions with conveners and description, and/or submit short course ideas. The deadline to submit proposals for Union Symposia and Great Debates is 15 August. The next EGU General Assembly is taking place in Vienna, Austria on 3–8 May 2020.
EGU is committed to standing up for international cooperation in science and taking a leading role within the scientific community in order to reduce barriers to scientific collaboration and cooperation across Europe, let alone increase them, as these would be a tremendous loss to European nations, to the international scientific community and to humanity as a whole.
We investigate the transport pathways of water vapour from the upper troposphere in the Asian monsoon region to the stratosphere. In the employed chemistry-transport model we use a tagging method, such that the impact of different source regions on the stratospheric water vapour budget can be quantified. A key finding is that the Asian monsoon (compared to other source regions) is very efficient in transporting air masses and water vapour to the tropical and extratropical stratosphere.
Assessing the impact of glaciation at the Earth’s surface requires simultaneous quantification of the impact of climate variability on past glacier fluctuations and on bedrock erosion. Here we present a new approach for evaluating post-glacial bedrock surface erosion in mountainous environments by combining two different surface exposure dating methods. This approach can be used to estimate how bedrock erosion rates vary spatially and temporally since glacier retreat in an alpine environment.
In this article, we present the variability and characteristics of dissolved organic matter at the fluvial–marine transition in the Laptev Sea from a unique dataset collected during 11 Arctic expeditions. We develop a new relationship between dissolved organic carbon (DOC) and coloured dissolved organic matter absorption, which is used to estimate surface water DOC concentration from space. We believe that our findings help current efforts to monitor ongoing changes in the Arctic carbon cycle.
Predictions of global warming require predictions of how much CO2 will be taken up by the oceans, how much by land plants, and how much will stay in the atmosphere. Measurements of atmospheric oxygen (O2) help with these predictions if we also know the ratio of O2 release to CO2 uptake in land plants. We have measured this ratio in a midlatitude forest and find a lower value than the one in wide use. If truly applicable, our results call for a modest adjustment in the global carbon budget.
Close your eyes and try to imagine first thing which comes to your mind, when somebody says “Tundra”. What would you imagine? Being a master student, I imagined cold, flat and a dead field. In fact, Tundra turn out to be completely different, at least in September 2010, when I and my colleagues were lucky to visit it. As it is well known from textbooks no big trees grows in Tundra, however, the local mosses were full of colour and …
What is it? Lithiophilite, LiMnPO4 What’s it made of? Lithium (Li), manganese (Mn), phosphorus (P) and oxygen (O). The PO4 at the end of the formula makes this a phosphate mineral (phosphorus + oxygen = phosphate). What’s it’s structure? The way the different atoms are arranged in lithiophilite is described as orthorhombic, which means the crystal is built of lots of tiny cuboid-shaped atomic meshes (we call these individual building blocks unit cells). The mineral olivine, which makes up most …
When volcanoes erupt, they can release into the atmosphere a number of different gases initially stored in their magma, such as carbon dioxide, hydrogen sulfide, and sulfur dioxide. These kinds of gases can have a big influence on Earth’s atmosphere, even at distances hundreds to thousands of kilometres away. A team of researchers have found evidence that sulfur emissions from volcanic eruptions in Africa can be observed as far as South America, even creating an impact on the Amazon rainforest’s …