Jan Esper Explained

Jan Esper
Birth Date:	1968
Nationality:	German
Titles:	Professor and Head of Unit
Alma Mater:	Rheinische Friedrich-Wilhelms-Universität Bonn
Website:	Departmental Website
Workplaces:	Johannes Gutenberg Universität Mainz
Discipline:	Geography
Main Interests:	Climate Change, Paleoclimatology, Urban Climate, Dendrochronology

Jan Esper (born 1968) studied geography at the University of Bonn, where he later earned his doctorate. After a postdoc position at Columbia University in New York City, he continued his work on dendrochronology at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), and qualified as a professor at the University of Bern. In 2018, Esper became a member of the Academy of Sciences and Literature. Since 2010, he has been a professor at the Department of Geography at Johannes Gutenberg University Mainz.^[1]

Esper's research focuses on global climate change, paleoclimate, urban climate and dendrochronology. In 2020, he received the European Research Council (ERC) Advanced Grant to improve climate reconstructions from tree rings.^[2] His research has notably included hockey stick graph temperature reconstructions.^{[3] [4] [5]}

Selected bibliography

• M.N. . Juckes . M.R. . Allen . Keith R. . Briffa . Jan . Esper . G.C. . Hegerl . Anders . Moberg . Timothy J. . Osborn . S.L. . Weber . Eduardo . Zorita . Jan Esper . Millennial temperature reconstruction intercomparison and evaluation . Climate of the Past Discussions . 2 . 5 . 1001–1049 . 10.5194/cpd-2-1001-2006 . 2006 . free .
• Jan . Esper . Robert J.S. . Wilson . David C. . Frank . Anders . Moberg . Heinz . Wanner . Jürg . Luterbacher . Jan Esper . Climate: past ranges and future changes . Quaternary Science Reviews . 2005 . 24 . 20–21 . 2164–2166 . 10.1016/j.quascirev.2005.07.001 . 2005QSRv...24.2164E . dead . https://web.archive.org/web/20061230223535/http://www.wsl.ch/staff/jan.esper/publications/QSR_Esper_2005.pdf . 2006-12-30 .
• Jan . Esper . Edward R. . Cook . Fritz H. . Schweingruber . Jan Esper . Low-frequency signals in long tree-ring chronologies and the reconstruction of past temperature variability . . 2002 . 295 . 5563 . 2250–2253 . 10.1126/science.1066208 . 11910106 . 2002Sci...295.2250E . 22184321 . dead . https://web.archive.org/web/20070221081646/http://www.wsl.ch/staff/jan.esper/publications/Science_2002.pdf . 2007-02-21 .
• Jan . Esper . David C.. . Frank . Robert J.S. . Wilson . Jan Esper . Climate Reconstructions: Low-Frequency Ambition and High-Frequency Ratification . . 85 . 12 . 113–120 . 2004 . 10.1029/2004EO120002 . 2004EOSTr..85..113E . free .

External links

• Web site: Bending the Hockey Stick. 2007-02-24.
• Web site: Natural Variability and Climate Sensitivity. 2007-02-24. December 2005.

Notes and References

1. Web site: Jan Esper Geographisches Institut. 2021-04-16. www.blogs.uni-mainz.de.
2. Web site: Jan Esper receives ERC Advanced Grant to improve climate reconstructions from tree rings. 2021-04-16. EurekAlert!. en.
3. Esper. J.. 2002-03-22. Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability. Science. 295. 5563. 2250–2253. 10.1126/science.1066208. 11910106 . 2002Sci...295.2250E . 22184321 .
4. Frank. David. Esper. Jan. Zorita. Eduardo. Wilson. Rob. 2010. A noodle, hockey stick, and spaghetti plate: a perspective on high-resolution paleoclimatology. WIREs Climate Change. en. 1. 4. 507–516. 10.1002/wcc.53. 16524970 . 1757-7799. free.
5. Cook. Edward R.. Esper. Jan. D’Arrigo. Rosanne D.. Rosanne D'Arrigo. November 2004. Extra-tropical Northern Hemisphere land temperature variability over the past 1000 years. Quaternary Science Reviews. en. 23. 20–22. 2063–2074. 10.1016/j.quascirev.2004.08.013. 2004QSRv...23.2063C .