Earth is felt to be the same; it causes objects to fall according to a well-known acceleration - g (9.8 ms -2 ). In reality, this g varies by a few hundred tens of thousandths of metres per second squared (unit [...] to the different ways that the masses in Earth's various rock and fluid layers - atmosphere, ocean, ice-sheet, sediments, crust, mantle, and core, are arranged with respect to each other. Accelerations from
inland ice plateau and measure the ice near the station, which is up to 2,780 metres thick. Until then, we had no high-resolution on the bottommost ice layer for this part of the Antarctic Ice Sheet. The [...] by Sina Löschke. Discover more... AWI Ice Blog: Epedition Reports Focus on: Ice Sheets Greenland: Ice really is a hot commodity Glaciology Section Fact Sheet on Ice Sheets Radar experts Martin Gehrmann [...] AWI’s new ultra-wideband ice radar, they can now aerially scan glaciers and ice sheets from top to bottom. In the following interview, Division Head Prof Angelika Humbert and ice-radar expert Dr Tobias Binder
terrestrial, sea ice), age and transformation processes (e.g. microbial and photo degradation). The application of Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) yielded major advances [...] environmental factors (sea ice cover, water mass characteristics, light and nutrient availability) affect not only the timing, but also the physiology and biochemistry in sea ice algae and phytoplankton. [...] from unicellular algae to higher trophic levels. In polar regions zooplankton has to cope with winter ice cover and darkness and hence with a relatively short spring/summer period of food plenty. In general
profile each day for 1 year) - self contained vehicel (internal data storage to avoid problems with ice in arctic regions) - measure C,T and p with precision high enough to indicate convective events in [...] reaching the control unit again. The upward speed is much slower than the downward speed (0.7 to 1.0 m/s), and measurements are performed only during the downcast. The vehicle is long and slim to achieve [...] proposed concepts winter ventilation can result in an increase in temperature and salinity, and that no ice formation is needed. This is due to the special conditions in the Greenland Sea with subsurface advection
isoprenoids, alkenones ( F6 ). By these molecules we obtain detailed information about the sea-ice distribution (sea-ice proxy, IP 25 , F7 ) and the origin of the organic matter (terrigenous and marine biomarkers) [...] with autosamplers, cold injection systems (Gerstel KAS 4) and flame-ionization detectors (FID). 2 GC/MS-Systems, consisting of Agilent 6850/ Agilent 7890 GC, Agilent 5975/ Agilent 5977 MSD, and an autosampler
few meters below the surface and up to 350m depth at a vertical speed of 1m/s and it can be towed between 2 and 8 knots (1-4m/s) speed through water. Depending on the exact parameters chosen, this results [...] water depth or a constant distance from the surface (e.g. underside of sea ice) or bottom. The operation in medium-severity sea ice conditions is planned. It can also be deflected horizontally to fly outside
PermaRisk has developed and produced an exhibit for MS Wissenschaft in collaboration with the Heidelberg Institute for Geoinformation Technology. The MS Wissenschaft is an exhibition ship financed by the [...] awarded the 15th Potsdam “Nachwuchswissenschaftspreis” for his dissertation “Modeling the evolution of ice-rich permafrost landscapes in response to a warming climate”, which was awarded “summa cum laude”. [...] de/id/eprint/53969/ Paper entitled "Effects of multi-scale heterogeneity on the simulated evolution of ice-rich permafrost lowlands under a warming climate" has been published in The Cryosphere ( doi
station which is located on the Ekström Ice shelf, about 8 km from the Atka Bay. During the summer months, the bay and the nearby coastline are mainly free of sea ice and there is always open water present [...] the following criteria is given: Wind direction within a 330°-30° sector, wind velocity <2.0 m/s or >18 m/s, or CN concentrations >2500 cm -3 during summer, >800 cm -3 during spring/autumn and >400 cm
during winter, when open water is more than 1000 km away from Neumayer due to sea ice formation. It is believed that the sea ice surface can also act as sea salt aerosol source, but the process itself is still [...] concentrations is characteristic for coastal Antarctica and is linked with the seasonality of the sea ice coverage and insolation. Details regarding the sampling method can be found here ... References: Minikin [...] shows the monthly mean Lanthanum (La) concentrations derived from the high volume filter samples by ICP-MS (Inductively Coupled Plasma Mass Spectroscopy) element analysis. The rare earth element La is a typical
habitats in the deep sea, in particular, extreme biotic communities and deep-sea ecosystems below the ice, and on seamounts, mud volcanoes, gas hydrates, and cold and hot springs. Her studies on the ecological [...] also well known for developing new robotic instruments for in-situ studies on marine ecosystems. These include various sensors and camera systems used to monitor physical and chemical indicators