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{{Orphan|date=February 2009}}
{{COI|date=April 2021}}
{{Infobox academic|name=Jan Esper|birth_date=1968|nationality=German|titles=Professor and Head of Unit|alma_mater=[[Rheinische Friedrich-Wilhelms-Universität Bonn]]|website=[https://www.blogs.uni-mainz.de/fb09climatology/staff-and-students/jan-esper/ Departmental Website]|workplaces=[[Johannes Gutenberg-Universität|Johannes Gutenberg Universität Mainz]]|discipline=[[Geography]]|main_interests=[[Climate Change]], [[Paleoclimatology]], [[Urban Climate]], [[Dendrochronology]]}}
'''Jan Esper''' (born 1968) <ref>{{cite web| title=Homepage of Jan Esper| url=http://www.wsl.ch/staff/jan.esper/ |accessdate=2007-02-24}}</ref> is the head of the dendro sciences division at the WSL (Wald Snee und Landschafft - en:Forest, Snow and Landscape) division of the Swiss Federal Institute of Technology ([[ETH]]). His research interests are [[Global Climate Change]], [[Palaeoclimatology]] and [[Vegetation Dynamics]].


'''Jan Esper''' (born 1968) studied [[geography]] at the [[University of Bonn]], where he later earned his doctorate. After a postdoc position at [[Columbia University School of General Studies|Columbia University]] in New York City, he continued his work on [[dendrochronology]] at the [[Swiss Federal Institute for Forest, Snow and Landscape Research|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 [[Akademie der Wissenschaften und der Literatur|Academy of Sciences and Literature]]. Since 2010, he has been a professor at the Department of Geography at [[University of Mainz|Johannes Gutenberg University Mainz]].<ref name=":0">{{Cite web|title=Jan Esper {{!}} Geographisches Institut|url=https://www.blogs.uni-mainz.de/fb09climatology/staff-and-students/jan-esper/|access-date=2021-04-16|website=www.blogs.uni-mainz.de}}</ref>
His research has been part of the [[Hockey stick controversy]] with his temperature reconstructions, that have been cited as being evidence for both sides of the controversy.


Esper's research focuses on [[Climate change|global climate change]], [[Paleoclimatology|paleoclimate]], [[Urban climatology|urban climate]] and [[dendrochronology]]. In 2020, he received the [[ERC Advanced Grant|European Research Council (ERC) Advanced Grant]] to improve climate reconstructions from tree rings.<ref>{{Cite web|title=Jan Esper receives ERC Advanced Grant to improve climate reconstructions from tree rings|url=https://www.eurekalert.org/pub_releases/2020-04/jgum-jer041420.php|access-date=2021-04-16|website=EurekAlert!|language=en}}</ref> His research has notably included [[hockey stick graph (global temperature)|hockey stick graph]] temperature reconstructions.<ref>{{Cite journal|last=Esper|first=J.|date=2002-03-22|title=Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability|url=https://www.science.org/doi/10.1126/science.1066208|journal=Science|volume=295|issue=5563|pages=2250–2253|doi=10.1126/science.1066208|pmid=11910106 |bibcode=2002Sci...295.2250E |s2cid=22184321 }}</ref><ref>{{Cite journal|last1=Frank|first1=David|last2=Esper|first2=Jan|last3=Zorita|first3=Eduardo|last4=Wilson|first4=Rob|date=2010|title=A noodle, hockey stick, and spaghetti plate: a perspective on high-resolution paleoclimatology|journal=WIREs Climate Change|language=en|volume=1|issue=4|pages=507–516|doi=10.1002/wcc.53|s2cid=16524970 |issn=1757-7799|doi-access=free}}</ref><ref>{{Cite journal|last1=Cook|first1=Edward R.|last2=Esper|first2=Jan|last3=D’Arrigo|first3=Rosanne D.|author-link3=Rosanne D'Arrigo|date=November 2004|title=Extra-tropical Northern Hemisphere land temperature variability over the past 1000 years|url=https://linkinghub.elsevier.com/retrieve/pii/S0277379104002367|journal=Quaternary Science Reviews|language=en|volume=23|issue=20–22|pages=2063–2074|doi=10.1016/j.quascirev.2004.08.013|bibcode=2004QSRv...23.2063C }}</ref>
== Academic career ==
* 1995 Diplom in Geography at [[University of Bonn]]
* 1999 Ph.D. in Geography at the [[University of Bonn]]
* 2000 Postdoc at [[Columbia University]]
* 2001 Research scientist at [[ETH]], [[Birmensdorf]]
* 2005 [[Habilitation]] at the [[University of Bern]]
* 2006 Head Dendro Sciences Division, WSL (Wald Schnee und Landschaft)


== Selected publications ==
== Selected bibliography==
* {{citation
* {{Cite journal
| first1=M.N. | last=Juckes
|first1=M.N.
|last1=Juckes
| first2=M.R. | last2=Allen
|first2=M.R.
| first3=Keith R. | last3=Briffa
|last2=Allen
| first4=Jan | last4=Esper
|first3=Keith R.
| first5=G.C. | last5=Hegerl
|last3=Briffa
| first6=Anders | last6=Moberg
|first4=Jan
| first7=Timothy J. | last7=Osborn
|last4=Esper
| first8=S.L. | last8=Weber
|first5=G.C.
| first9=Eduardo | last9=Zorita
|last5=Hegerl
| author4-link=Jan Esper
|first6=Anders
| title=Millennial temperature reconstruction intercomparison and evaluation
|last6=Moberg
| journal=Climate of the Past Discussions
|first7=Timothy J.
| volume=2 | issue=5 | pages=1001–1049
|last7=Osborn
| url=http://www.wsl.ch/staff/jan.esper/publications/Juckes_2006_CoP.pdf
|first8=S.L.
| format={{dead link|date=April 2009}} &ndash; <sup>[http://scholar.google.co.uk/scholar?hl=en&lr=&q=author%3AJuckes+intitle%3AMillennial+temperature+reconstruction+intercomparison+and+evaluation&as_publication=Climate+of+the+Past+Discussions&as_ylo=&as_yhi=&btnG=Search Scholar search]</sup>
|last8=Weber
}}
|first9=Eduardo
* {{citation
|last9=Zorita
| first1=Jan | last1=Esper
|authorlink4=Jan Esper
| first2=Robert J.S. | last2=Wilson
|title=Millennial temperature reconstruction intercomparison and evaluation
| first3=David C. | last3=Frank
|journal=Climate of the Past Discussions
| first4=Anders | last4=Moberg
|volume=2
| first5=Heinz | last5=Wanner
|issue=5
| first6=Jürg | last6=Luterbacher
|pages=1001–1049
| author1-link=Jan Esper
|doi=10.5194/cpd-2-1001-2006
| title=Climate: past ranges and future changes
|year=2006
| journal=Quaternary Science Reviews | year=2005
|doi-access=free
| volume=24 | issue=20-21 | pages=2164–2166
}}
| url=http://www.wsl.ch/staff/jan.esper/publications/QSR_Esper_2005.pdf
* {{Cite journal
| doi=10.1016/j.quascirev.2005.07.001
|first1=Jan
}}
|last1=Esper
* {{citation
|first2=Robert J.S.
| first1=Jan | last1=Esper
|last2=Wilson
| first2=Edward R. | last2=Cook
| first3=Fritz H. | last3=Schweingruber
|first3=David C.
|last3=Frank
| author1-link=Jan Esper
|first4=Anders
| title=Low-frequency signals in long tree-ring chronologies and the reconstruction of past temperature variability.
|last4=Moberg
| journal=[[Science (journal)|Science]] | year=2002
|first5=Heinz
| volume=295 | issue=5563 | pages=2250–2253
|last5=Wanner
| url=http://www.wsl.ch/staff/jan.esper/publications/Science_2002.pdf
|first6=Jürg
| doi=10.1126/science.1066208
|last6=Luterbacher
}}
|author1-link=Jan Esper
* {{citation
|title=Climate: past ranges and future changes
| first1=Jan | last1=Esper
|journal=Quaternary Science Reviews
| first2=David C.. | last2=Frank
|year=2005
| first3=Robert J.S. | last3=Wilson
|volume=24
| author1-link=Jan Esper
|issue=20–21
| title=Climate Reconstructions: Low-Frequency Ambition and High-Frequency Ratification
|pages=2164–2166
| journal=[[EOS]]
|url=http://www.wsl.ch/staff/jan.esper/publications/QSR_Esper_2005.pdf
| volume=85 | issue=12 | pages=113–120 | year=2004
| doi=10.1029/2004EO120002
|doi=10.1016/j.quascirev.2005.07.001
|bibcode=2005QSRv...24.2164E
| url=http://www.wsl.ch/staff/jan.esper/publications/EOS_2004.pdf
|url-status=dead
}}
|archive-url=https://web.archive.org/web/20061230223535/http://www.wsl.ch/staff/jan.esper/publications/QSR_Esper_2005.pdf
|archive-date=2006-12-30
}}
* {{Cite journal
|first1=Jan
|last1=Esper
|first2=Edward R.
|last2=Cook
|first3=Fritz H.
|last3=Schweingruber
|author1-link=Jan Esper
|title=Low-frequency signals in long tree-ring chronologies and the reconstruction of past temperature variability
|journal=[[Science (journal)|Science]]
|year=2002
|volume=295
|issue=5563
|pages=2250–2253
|url=http://www.wsl.ch/staff/jan.esper/publications/Science_2002.pdf
|doi=10.1126/science.1066208
|pmid=11910106
|bibcode=2002Sci...295.2250E
|s2cid=22184321
|url-status=dead
|archive-url=https://web.archive.org/web/20070221081646/http://www.wsl.ch/staff/jan.esper/publications/Science_2002.pdf
|archive-date=2007-02-21
}}
* {{Cite journal
|first1=Jan
|last1=Esper
|first2=David C..
|last2=Frank
|first3=Robert J.S.
|last3=Wilson
|author1-link=Jan Esper
|title=Climate Reconstructions: Low-Frequency Ambition and High-Frequency Ratification
|journal=[[Eos (journal)|EOS]]
|volume=85
|issue=12
|pages=113–120
|year=2004
|doi=10.1029/2004EO120002
|bibcode=2004EOSTr..85..113E
|doi-access=free
}}


== References ==
== References ==
{{reflist}}
{{Reflist}}


==External links==
==External links==
* {{cite web| url=http://www.climateaudit.org/?p=821 |title= An Esper Divergence Problem|accessdate=2007-12-07}}
* {{cite web| url=http://www.worldclimatereport.com/index.php/2004/04/02/bending-the-hockey-stick/ |title=Bending the Hockey Stick| accessdate=2007-02-24}}
* {{cite web| url=http://www.worldclimatereport.com/index.php/2004/04/02/bending-the-hockey-stick/ |title=Bending the Hockey Stick| accessdate=2007-02-24}}
* {{cite web| url=http://www.realclimate.org/index.php/archives/2005/12/natural-variability-and-climate-sensitivity|title=Natural Variability and Climate Sensitivity|accessdate=2007-02-24| year=2005 | month=December}}
* {{cite web| url=http://www.realclimate.org/index.php/archives/2005/12/natural-variability-and-climate-sensitivity|title=Natural Variability and Climate Sensitivity|accessdate=2007-02-24|date=December 2005}}

{{Authority control}}


{{DEFAULTSORT:Esper, Jan}}
{{DEFAULTSORT:Esper, Jan}}
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[[Category:Living people]]
[[Category:Living people]]
[[Category:University of Bonn alumni]]
[[Category:University of Bonn alumni]]

{{geoscientist-stub}}
{{Geographer-stub}}
{{Germany-academic-bio-stub}}
{{Germany-scientist-stub}}

Latest revision as of 13:39, 10 October 2023

Jan Esper
Born1968
NationalityGerman
TitleProfessor and Head of Unit
Academic background
Alma materRheinische Friedrich-Wilhelms-Universität Bonn
Academic work
DisciplineGeography
InstitutionsJohannes Gutenberg Universität Mainz
Main interestsClimate Change, Paleoclimatology, Urban Climate, Dendrochronology
WebsiteDepartmental Website

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

[edit]
  • Juckes, M.N.; Allen, M.R.; Briffa, Keith R.; Esper, Jan; Hegerl, G.C.; Moberg, Anders; Osborn, Timothy J.; Weber, S.L.; Zorita, Eduardo (2006). "Millennial temperature reconstruction intercomparison and evaluation". Climate of the Past Discussions. 2 (5): 1001–1049. doi:10.5194/cpd-2-1001-2006.
  • Esper, Jan; Wilson, Robert J.S.; Frank, David C.; Moberg, Anders; Wanner, Heinz; Luterbacher, Jürg (2005). "Climate: past ranges and future changes" (PDF). Quaternary Science Reviews. 24 (20–21): 2164–2166. Bibcode:2005QSRv...24.2164E. doi:10.1016/j.quascirev.2005.07.001. Archived from the original (PDF) on 2006-12-30.
  • Esper, Jan; Cook, Edward R.; Schweingruber, Fritz H. (2002). "Low-frequency signals in long tree-ring chronologies and the reconstruction of past temperature variability" (PDF). Science. 295 (5563): 2250–2253. Bibcode:2002Sci...295.2250E. doi:10.1126/science.1066208. PMID 11910106. S2CID 22184321. Archived from the original (PDF) on 2007-02-21.
  • Esper, Jan; Frank, David C..; Wilson, Robert J.S. (2004). "Climate Reconstructions: Low-Frequency Ambition and High-Frequency Ratification". EOS. 85 (12): 113–120. Bibcode:2004EOSTr..85..113E. doi:10.1029/2004EO120002.

References

[edit]
  1. ^ "Jan Esper | Geographisches Institut". www.blogs.uni-mainz.de. Retrieved 2021-04-16.
  2. ^ "Jan Esper receives ERC Advanced Grant to improve climate reconstructions from tree rings". EurekAlert!. Retrieved 2021-04-16.
  3. ^ Esper, J. (2002-03-22). "Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability". Science. 295 (5563): 2250–2253. Bibcode:2002Sci...295.2250E. doi:10.1126/science.1066208. PMID 11910106. S2CID 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. 1 (4): 507–516. doi:10.1002/wcc.53. ISSN 1757-7799. S2CID 16524970.
  5. ^ Cook, Edward R.; Esper, Jan; D’Arrigo, Rosanne D. (November 2004). "Extra-tropical Northern Hemisphere land temperature variability over the past 1000 years". Quaternary Science Reviews. 23 (20–22): 2063–2074. Bibcode:2004QSRv...23.2063C. doi:10.1016/j.quascirev.2004.08.013.
[edit]
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