Imaggeo on Mondays: Fog over Forest

Fog over Forest. Image by Konstantinos Kourtidis, distributed by EGU under a Creative Commons License.

Fog sweeps over a pine forest in the early morning hours. The image was taken on a winter morning in February 2008. The photo was taken from the window of the photographer’s house in Xanthi, Greece. The fog is of the type of upslope fog or hill fog, which forms when winds blow air up a slope, cooling air as it rises, and causing the moisture in it to condense.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Rock Fall

Rock Fall. Image by Fausto Guzetti, distributed by EGU under a Creative Commons licence.

The photograph shows a rock fall occurred near Valtopina, Umbria, Central Italy, at an unknown date.

Rockfalls are a mass movement hazard. They mostly occur on steep rock faces, with the blocks that fall detaching along an existing weakness. The scale of a rock fall can range from a few blocks of rock to rock avalanches. Rock falls can be triggered by earthquakes, freeze-thaw or no apparent cause.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Mount Yasur

Strombolian activity on Mount Yasur, Vanuatu. Image by Derya Gürer, distributed by EGU under a Creative Commons licence.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Lava flow into sea

Lava from the East Rift Zone entering the sea near Kalapana (Hawaii Big Island). Image by Martin Mergili, distributed by EGU under a Creative Commons License.

The image shows a flow of basaltic lava out of a lava tunnel into the sea. The location of the scene is the shoreline of Hawaii Big Island near the village of Kalapana. Flow direction of the lava is from the bottom to the top of the image, vaporization of sea water leads to a steam plume of considerable size. Originating from the East Rift Zone, many of the lava flows in that area occur beneath a layer of partially solidified lava. The image was taken on August 13, 2010 during a touristic helicopter flight on a holiday trip.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Stretching to the Light

Stretching to the Lights, Bryce Canyon, Utah, USA. Image by Valeria Volpe, distributed by EGU under a Creative Commons License.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Akutan Volcano, Alaska

Akutan Volcano, Alaska. Image by Michael Jackson, distributed by EGU under a Creative Commons License.

High winds create lenticular clouds off Shishaldin Volcano in the Aleutian Islands. UNAVCO staff installed 16 integrated geophysical instruments including GPS, seismic, tilt, meteorologic instruments on Unimak Island as part of the EarthScope Project.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Mother of Pearl Cloud

Mother of Pearl Cloud above Esrange, Sweden. Image by Peggy Achtert, distributed by EGU under a Creative Commons License.

This image shows a Polar Stratospheric Cloud (PSC) observed during a lidar campaign at Esrange, northern Sweden, on January 27th, 2011. The lidar measurement revealed that the PSC occurred between 29 and 31 km altitude at a temperature below -93°C. PSCs are most commonly observed between 18 and 26 km altitude during polar winter when ambient temperatures drop below -83°C. The name “Mother of Pearl Cloud” only refers to the visible kind of PSC that is made up of ice crystals. The recording of PSC observations started in 1893 when Henrik Mohn published his collected data of iridescent clouds over southern Sweden. It was him who called this phenomenon “Mother of Pearl Cloud” because of the cloud’s brilliant iridescence.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Alpine Wetland

High Altitude Wetland in the Alps, Switzerland. Image by Christine Schleupner, distributed by EGU under a Creative Commons License.

High altitude wetlands are scenic and unique ecosystems that fulfill important hydrological functions and provide many ecosystem services. They also serve as geo-archives and play a role in greenhouse-gas emissions, just to name a few things.

The photograph has been taken at the Riffelsee (2770 m) near Zermatt, Switzerland. The small lake surrounded by wet-meadows and cottongrass is famous for its reflection of the Matterhorn. In a current project at the Research Unit Sustainability and Global Change in Hamburg distribution and services of such wetlands are evaluated and integrated into interdisciplinary models.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Tethys Himalaya

Tethys Himalaya in Zanskar, Jammu & Kashmir. Image by Pierre Dèzes, distributed by EGU under a Creative Commons License.

Tethys Himalaya are one of the zones of the Central Himalayan Domain (CHD), which is one of the tectonic zones of the Himalaya. The Tethys Himalaya is approximately 100 km wide large fold (syncline) with superimposed smaller folds (this is known as a synclinorium). The Tethys Himalaya contains a stratigraphic record which indicates the geological history of this part of the Indian continent.

This image shows Palaeozoic and Triassic sediments of the Tethys Himalaya in Zanskar, Jammu & Kashmir. The orange cliffs are massive dolomite from the Cambrian Karsha formation. They are overlain by dark Permian basaltic flows (Panjal Traps). The summit in the middle of the picture consists of Triassic sediments from the Lilang Group. This view from Purne is towards the northeast into the gorge of the Phugtal monastery. A chorten (or stupa) stands in the foreground.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.

Imaggeo on Mondays: Mya Lake

Mya lake in the Beaufortain, French Alps. Image by Sandrine Tacon, distributed by EGU under a Creative Commons License.

Imaggeo is the online open access geosciences image repository of the European Geosciences Union. Every geoscientist who is an amateur photographer (but also other people) can submit their images to this repository. Being open access, it can be used by scientists for their presentations or publications as well as by the press. If you submit your images to imaggeo, you retain full rights of use, since they are licenced and distributed by EGU under a Creative Commons licence.