Search Results - "Siegmund, Heike"

Changes in groundwater chemistry before two consecutive earthquakes in Iceland by Skelton, Alasdair, Andrén, Margareta, Kristmannsdóttir, Hrefna, Stockmann, Gabrielle, Mörth, Carl-Magnus, Sveinbjörnsdóttir, Árny, Jónsson, Sigurjón, Sturkell, Erik, Guðrúnardóttir, Helga Rakel, Hjartarson, Hreinn, Siegmund, Heike, Kockum, Ingrid

“…Precursor events to earthquakes are rarely reproduced. Measurement of groundwater chemistry in Iceland between 2008 and 2013 reveals distinct changes prior to…”
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Stable isotopes of oxygen and hydrogen in meteoric water during the Cryogenian Period by Skelton, Alasdair, Löwhagen, Linda, Fairchild, Ian J., Boyce, Adrian, Mörth, Carl-Magnus, Siegmund, Heike, Webster, David, Spencer, Anthony M.

“…•Baseline δ18O and δ2H of Cryogenian meteoric water are similar to the present day.•Snowball Earth episodes are associated with negative excursions from this…”
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Hydrochemical Changes Before and After Earthquakes Based on Long-Term Measurements of Multiple Parameters at Two Sites in Northern IcelandA Review by Skelton, Alasdair, Liljedahl-Claesson, L., Wästeby, Niklas, Andrén, Margareta, Stockmann, G., Sturkell, E., Mörth, Carl-Magnus, Stefansson, A., Tollefsen, Elin, Siegmund, Heike, Keller, N., Kjartansdóttir, R., Hjartarson, H., Kockum, I.

“…Hydrochemical changes before and after earthquakes have been reported for over 50years. However, few reports provide sufficient data for an association to be…”
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Coupling between mineral reactions, chemical changes in groundwater, and earthquakes in Iceland by Andrén, Margareta, Stockmann, Gabrielle, Skelton, Alasdair, Sturkell, Erik, Mörth, Carl‐Magnus, Guðrúnardóttir, Helga Rakel, Keller, Nicole Simone, Odling, Nic, Dahrén, Börje, Broman, Curt, Balic‐Zunic, Tonci, Hjartarson, Hreinn, Siegmund, Heike, Freund, Friedemann, Kockum, Ingrid

“…Chemical analysis of groundwater samples collected from a borehole at Hafralækur, northern Iceland, from October 2008 to June 2015 revealed (1) a long‐term…”
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Nitrogen fixation by diazotrophic cyanobacteria in the Baltic Sea and transfer of the newly fixed nitrogen to picoplankton organisms by Ohlendieck, Ute, Stuhr, Annegret, Siegmund, Heike

“…Nitrogen fixation ( 15N 2-tracer method) by filamentous cyanobacteria and the flux of the newly fixed nitrogen into picoplanktonic organisms were investigated…”
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Food selection by calanoid copepods in the euphotic layer of the Gotland Sea (Baltic Proper) during mass occurrence of N2-fixing cyanobacteria by Meyer-Harms, Bettina, Reckermann, Marcus, Voß, Maren, Siegmund, Heike, von Bodungen, Bodo

“…Food selection by 2 dominant calanoid copepods, Acartia sp. and Temora longicornis, was studied during mass occurrence of N2-fixing cyanobacteria in June/July…”
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