Mittelalterliche Warmperiode

Interview mit copyright Dr. Büntgen Dr. Ulf Büntgen In der heutigen Ausgabe von "Menschen im Gespräch" begegne ich Dr. Ulf Büntgen von der Eidgenössischen Forschungsanstalt für Wald, Schnee und Landschaft WSL in Birmensdorf/Schweiz ( WSL ). Dr. Büntgen ist dort als Scientific Research Assistant in der Paläo-Klimatologie-Gruppe im Bereich Dendro-Wissenschaften tätig ( Gruppe Paläo-Klimatologie ). Des Weiteren ist Dr. Büntgen Mitglied des "Oeschger Centre for Climate Change Research ( Oeschger-Center )". Da Dr. Büntgens Expertise unbestritten ist, wofür wohl auch seine zahlreichen Veröffentlichungen sprechen ( Liste der Veröffentlichungen ), freut es mich besonders, dieses Interview zu führen. ____________________ W.v.B.: Es ist schön, einen Wissenschafter begrüßen zu dürfen, der sein Augenmerk auf die Paläoklimatologie und im Speziellen auf mein Blogthema, die MWP oder genauer, die Klimavariabilität richtet. Dr. Büntgen, ich möchte zu Beginn Einig...

Interview with copyright Dr. Barron Dr. John A. Barron Today, I am proud to introduce Dr. John A. Barron as my next interview partner. Dr. Barron has a PhD in Geology and works as a researcher (Geologist, Micropaleontologist) for the US Geological Survey, Western Region, Southwest area ( USGS Professional Pages ). The scientific importance of his work lies inter alia in helping to "refine diatoms as a biochronologic tool for dating Cenozoic and Late Cretaceous rocks and sediments from polar waters and coastal upwelling regions like California. This biochronology was used to date tectonic events in California and the North Pacific, determine periods of widespread deep-sea hiatuses in the world's oceans, and detail the Cenozoic history of the Antarctic ice sheet"(cf.,  Synopsis of Research ). Dr. Barron has published dozens of papers in renowned scientific journals like the Journal of Paleontology or " Palaeogeography, Palaeoclimatology, Palaeoecology ...

Interview with copyright Dr. Fowler Dr. Anthony Fowler Dr. Fowler is a Senior Lecturer at the School of Environment at The University of Auckland ( Biography ). His research activities over the last two decades have covered three fields: Palaeoclimatology, "Future climate change and climate change impact assessment and Hydrology" and water resource planning. Dr. Fowler has published numerous papers in well known peer-reviewed journals like The Holocene or the Journal of Quaternary Science .  I am looking forward to get some new informations on longtime climate reconstructions for the Southern Hemisphere. ____________________ W.v.B.: Dr. Fowler, let's start with some questions on the occurence of the Medieval Warm Period in Australia and New Zealand. During the last decade, several papers on longtime climate reconstructions for the Southern Hemisphere have been published. If we take a look on New Zealand, we can refer to the papers "Speleothem mas...

Interview with copyright Ljungqvist Fil. cand. Fredrik Charpentier Ljungqvist Fredrik Charpentier Ljungqvist is Secretary for the Centre of Medieval Studies at Stockholm University and PhD student at the Department of History at Stockholm University ( http://www.medeltid.su.se ). One of his publications is listed in the branch NOAA Palaeoclimatology/Climate Reconstructions ( Climate Reconstructions ) on the famous side of the NOAA's National Climatic Data Center ( NOAA Paleoclimatology Program ).  I am talking about the paper "Temperature Proxy Records Covering the Last Two millennia: a tabular and visual overview", which I have already mentioned (see the interview with Dr. Böhm.) Unfortunately you can only find the abstract and the data in txt-format (downloadable [txt-format, 1,3 MB], here: Temperature Proxy Records ... ) but not download the paper as a whole as a pdf-file. I think this paper is very important and the reason for making this interview. Mr. L...

Es hat mich sehr gefreut, mit Dr. Böhm das Interview zu führen.  In der Nachbetrachtung möchte ich zumindest einen Punkt herausheben.  Dabei handelt es sich um die Aussage, dass die MWP im alpinen Raum (für weite Gebiete Mitteleuropas) "deutlich in zwei besonders warme Phasen im 10. und im 12. Jahrhundert getrennt durch ein kühleres 11. Jahrhundert zerfällt." Im ALP-IMP-final-report (abruf-/ downloadbar [pdf-Format, 5,7 MB] unter: http://www.zamg.ac.at/ALP-IMP/downloads/ALP-IMP-final-rep-public.pdf ) finden wir auf Seite 21, die von mir schon als Verweis dienende Grafik von Büntgen et al. 2006. FIG. 6. (a) Alpine summer temperature reconstruction with the orange and blue boxes denoting the 10 warmest and coldest decades, respectively, and the smoothed red line being a 20-yr low-pass filter. Temperatures are expressed as anomalies w.r.t. 1901–2000. (b) High-frequency comparison between the MXD (red; this study) and RW (blue; Büntgen et al. 2005a) RCS chronologies. Record...