EGU Blogs

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WaterUnderground

When it snows, it pours (into aquifers)! Recharge seasonality around the world…

19th July 2015
When it snows, it pours (into aquifers)! Recharge seasonality around the world…

Written by Scott Jasechko University of Calgary isohydro.ca twitter.com/sjasechko Groundwater is renewed by rain and melted snow that moves under the ground, a process called groundwater recharge. The percentages of summer versus winter precipitation that make it under the ground are expected to be different for a number of reasons including larger plant water use during the summer, and larger are ...[Read More]

GeoLog

Geosciences Column: When water is scarce, understanding how we can save it is important

July 17, 2015
Geosciences Column: When water is scarce, understanding how we can save it is important

Supplies of water on Earth are running dry. The rate at which an ever growing population consumes this precious resource is not matched by our Planet’s ability to replenish it. Water scarcity is proving a problem globally, with regions such as California and Brazil facing some of the most severe water shortages on record. Used for drinking, agriculture and industrial processes, water forms an fund ...[Read More]

ERE
Energy, Resources and the Environment

Towards observation-based gridded runoff estimates for Europe

July 15, 2015

Words on Wednesday aims at promoting interesting/fun/exciting publications on topics related to Energy, Resources and the Environment. If you would like to be featured on WoW, please send us a link of the paper, or your own post, at ERE.Matters@gmail.com. *** Gudmundsson, L. and Seneviratne, S. I.: Towards observation-based gridded runoff estimates for Europe, Hydrol. Earth Syst. Sci., 19, 2859-28 ...[Read More]

WaterUnderground

Is research on ‘regional groundwater flow’ stagnant or still flowing?

13th July 2015
Is research on ‘regional groundwater flow’ stagnant or still flowing?

Written by Brian Smerdon IAH regional groundwater flow commission In the early 1960’s József Tóth published seminal work on the concept of regional scale flow and nested flow systems. His work built on the “theory of groundwater motion” by M.K. Hubbard, and seemed to come along just at the right moment in history of hydrogeology. Armed with József Tóth’s work, the hydrogeologic community (geologis ...[Read More]

GeoSphere

Geology Photo of the Week #43

July 13, 2015
Geology Photo of the Week #43

This weeks photo can be described by one word: mesmerizing. Honestly, it’s hard to tell which part of this photo is better, the beautiful starry sky backdrop or the glow of Kilauea’s smoking crater. Combined, it’s just fantastic. Kilauea is part of the Hawaiian Island volcanic chain which has been formed as the Pacific plate has moved across at hotspot. The volcano is about 300,0 ...[Read More]

GeoLog

Imaggeo on Mondays: The place where water runs through rocks

July 13, 2015
Imaggeo on Mondays: The place where water runs through rocks

Antelope Canyon, located in Arizona, USA, was formed by erosion of the Navajo Sandstone, primarily due to flash flooding and secondarily due to other sub-aerial processes (think of physical weathering processes such as freeze-thaw weathering exfoliation and salt crystallisation). Rainwater runs into the extensive basin above the slot canyon sections, picking up speed and sand as it rushes into the ...[Read More]

Geology for Global Development

Commentary: ‘Globalize Geoscience’ and International Capacity Strengthening

July 13, 2015
Commentary: ‘Globalize Geoscience’ and International Capacity Strengthening

The international community will soon agree on a set of sustainable development goals. This is a significant moment for the international community, and a great opportunity for geoscience. Over the coming months a broad discussion is needed as to how we can best support this global effort to eradicate extreme poverty. One important way this can be done is through ‘globalizing geoscience̵ ...[Read More]

CR
Cryospheric Sciences

Science and Shovels: Traversing across the Greenland Ice Sheet.

July 13, 2015
Science and Shovels: Traversing across the Greenland Ice Sheet.

Moving 150 tonnes of equipment more than 450km across the Greenland Ice Sheet sounds like a crazy idea. In that context, moving a 14-metre high, dome-shaped, wooden structure seems like a minor point, but it really is not. I do not think I realised what an awesome and awe-inspiring project I was part of, until I was out there, in the middle of the blindingly white ice sheet, and I saw the enormous ...[Read More]

GM
Geomorphology

9th I.A.G./A.I.G. SEDIBUD Workshop – Sediment Dynamics in Cold Climate Environments, Kaunertal, Tyrol/Austria, 7-10.09.2015

July 10, 2015
9th I.A.G./A.I.G. SEDIBUD Workshop – Sediment Dynamics in Cold Climate Environments, Kaunertal, Tyrol/Austria, 7-10.09.2015

Changes in climate have a major impact on sediment dynamics in cold environments from high arctic/antarctic and subarctic/subantarctic to alpine and upland sites. Climate changes influence the nature and extent of glaciers, permafrost areas, ice sheets and the extent and intensity of glacial, peri-, pro- and paraglacial processes. In this context major foci of the workshop are related to: Observat ...[Read More]