Carlos M. Asensio Grima casensio@ual.es Department of Agronomy University of Almería, Spain Soil wind erosion is influenced by soil inherent properties, different wind characteristics and surface vegetation cover. For a better understanding of this process is necessary to explain the effect and consequences of wind erosion on the ground and especially in agricultural areas of southern, eastern and ...[Read More]
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GeoLog
Imaggeo on Mondays: Polygon ponds at sunset.
Thinking of the Arctic conjures up images of vast expanses of white icy landscapes punctuated by towering icebergs and a few dark rocky masses; certainly not a green landscape with a series of water pools amongst rolling hills. The image below is perhaps more reminiscent of the temperate Scottish or Welsh countryside; but don’t be fooled, out Imaggeo on Monday’s image was captured by Reinhard Pien ...[Read More]
Soil System Sciences
Images of soil erosion
Frans Kwaad, physical geographer Soil erosion is the removal of soil from cultivated land at a rate that is (much) higher than the rate that would occur under the natural vegetation at the considered site. Besides the loss of fertile topsoil, soil erosion entails the dissection of cultivated land by rills and gullies and the deposition of eroded soil material on roads, in residential areas, rivers ...[Read More]
Geology for Global Development
Missing Maps – A London Event
Information about an external event that may be of interest to some of our readers: “You are warmly invited to attend the launch of the Missing Maps Project, a collaboration between the Humanitarian OpenStreetMap Team (HOT) , the British Red Cross, the American Red Cross, and Médecins Sans Frontières / Doctors Without Borders (MSF) . This exciting project will draw on a massive force of volu ...[Read More]
Geology Jenga
After a busy summer, we have returned to the blogosphere…
Well, it has been a while since either of us has produced a GeologyJenga post, so first of all apologies on this front. We both have the same excuse – finishing our PhD theses! Our mutual deadline was 30 September 2014, and thankfully we both made it. The last few months were challenging at times and we both agreed that the feeling upon submission is hard to describe: certainly wonderfully joyous, ...[Read More]
WaterUnderground
How I start good supervisory relationships with graduate students
Many professors are confused about why a certain graduate student is happy or unhappy, under performing or performing well. I am far from a perfect supervisor, but I try to avoid this confusion by getting to know my graduate students on a relatively deep but professional level as quickly as possible, by doing the following in our first meeting: sharing results of a personality test; discussing our ...[Read More]
GeoLog
Open Access: Access to knowledge
“Access to knowledge is a basic human right.” Yet sadly as scientists we are often forced to operate in a framework in which this is not always the case. This week sees the celebration of the eighth Open Access Week, and whilst there have undoubtedly been many achievements by the Open Access (OA) movement since 2009, there is still a long way to go before mankind’s basic human right to knowledge i ...[Read More]
Geology for Global Development
Images of Guatemala (3) – Lahar Deposits at Fuego
Lahars at Volcan de Fuego, Guatemala. This image captures a lahar [mudflow] deposit close to Volcan de Fuego. These deposits are formed when rain mobilises ash and pyroclastic material on the volcano to form a fast moving, powerful mudflow with the ability to transport material including large boulders. As the energy dissipates, the sediment is deposited as we see above. Difficult to see in this i ...[Read More]
GeoLog
EGU 2015: Call-for-papers is now open!
From now, up until 7 January 2015, you can submit your abstract for the upcoming EGU General Assembly (EGU 2015). In addition to established scientists, PhD students and other early career researchers are welcome to submit abstracts to present their research at the conference. Further, the EGU encourages undergraduate and master students to submit abstracts on their dissertations or final-year pro ...[Read More]
Between a Rock and a Hard Place
Lakes and lahars at Mt Ruapehu
Mt Ruapehu is the largest mountain on the North Island of New Zealand. As well as being a popular ski resort, Ruapehu is an active andesitic stratovolcano. Formed approximately 200,000 years ago, activity is currently confined to the Crater Lake vent; this deep depression fills with water from snow melt between eruptive episodes. Similarly to the recent eruption of Mount Ontake in Japan, Ruapehu h ...[Read More]