Gerhard Helle

7.2k citations

107 papers · 4.2k · h-index 34

Impact in

Atmospheric Science top 0.5%
- Tree-ring climate responses
- Geology and Paleoclimatology Research
Global and Planetary Change top 0.5%
- Plant Water Relations and Carbon Dynamics
- Climate variability and models

Papers in

Atmospheric Science 99
- Tree-ring climate responses 87
- Geology and Paleoclimatology Research 55
Global and Planetary Change 78
- Plant Water Relations and Carbon Dynamics 73
- Climate variability and models 16

Co-authors: Gerhard H. Schleser (28 shared papers)Ingo Heinrich (34 shared papers)Kerstin Treydte (12 shared papers)Jan Esper (8 shared papers)David Frank (3 shared papers)Laia Andreu‐Hayles (10 shared papers)Heinz Vos (6 shared papers)Matthias Winiger (2 shared papers)
Journals: Dendrochronologia (6 papers)Quaternary Science Reviews (5 papers)Climate of the past (4 papers)Palaeogeography Palaeoclimatology Palaeoecology (4 papers)Tree Physiology (4 papers)
Partner nations: Germany Switzerland United States

In The Last Decade

Gerhard Helle

107 papers receiving 4.1k citations

Peers

Countries citing papers authored by Gerhard Helle

Since Specialization

Citations

This map shows the geographic impact of Gerhard Helle's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gerhard Helle with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gerhard Helle more than expected).

Fields of papers citing papers by Gerhard Helle

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gerhard Helle. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gerhard Helle. The network helps show where Gerhard Helle may publish in the future.

Co-authors

The 25 scholars most cited alongside Gerhard Helle, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Gerhard Helle Line = papers co-authored together Gerhard Helle links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 107 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	The twentieth century was the wettest period in northern Pakistan over the past millennium Nature ·Kerstin Treydte, Gerhard H. Schleser, Gerhard Helle, David Frank, Matthias Winiger, Gerald H. Haug, Jan Esper	2006	496
2	Beyond CO₂‐fixation by Rubisco – an interpretation of ¹³C/¹²C variations in tree rings from novel intra‐seasonal studies on broad‐leaf trees Plant Cell & Environment ·Gerhard Helle, Gerhard H. Schleser	2004	305
3	Tracing carbon and oxygen isotope signals from newly assimilated sugars in the leaves to the tree‐ring archive Plant Cell & Environment ·Arthur Geßler, Elke Brandes, Nina Buchmann, Gerhard Helle, Heinz Rennenberg, Romain L. Barnard	2009	199
4	Isotope signals as climate proxies: the role of transfer functions in the study of terrestrial archives Quaternary Science Reviews ·Gerhard H. Schleser, Gerhard Helle, Andreas Lücke, Heinz Vos	1999	174
5	Long tree-ring chronologies reveal 20th century increases in water-use efficiency but no enhancement of tree growth at five Iberian pine forests Global Change Biology ·Laia Andreu‐Hayles, Octavi Planells, Emília Gutiérrez, Elena Muntán, Gerhard Helle, Kevin J. Anchukaitis, Gerhard H. Schleser	2010	172
6	A novel approach for the homogenization of cellulose to use micro‐amounts for stable isotope analyses Rapid Communications in Mass Spectrometry ·W. Laumer, Laia Andreu‐Hayles, Gerhard Helle, Gerhard H. Schleser, Tadeusz Wieloch, Holger Wissel	2009	167
7	Response of climate-growth relationships and water use efficiency to thinning in a Pinus nigra afforestation Forest Ecology and Management ·Darío Martin‐Benito, Miren del Rı́o, Ingo Heinrich, Gerhard Helle, Isabel Cañellas	2010	165
8	Impact of climate and CO2 on a millennium-long tree-ring carbon isotope record Geochimica et Cosmochimica Acta ·Kerstin Treydte, David Frank, Matthias Saurer, Gerhard Helle, Gerhard H. Schleser, Jan Esper	2009	124
9	Placing unprecedented recent fir growth in a European‐wide and Holocene‐long context Frontiers in Ecology and the Environment ·Ulf Büntgen, Willy Tegel, Jed O. Kaplan, Marcus Schaub, Frank Hagedorn, Matthias Bürgi, Rudolf Brázdil, Gerhard Helle, Marco Carrer, Karl‐Uwe Heußner, Jutta Hofmann, Raymond Kontic, Tomáš Kyncl, Josef Kyncl, J. Julio Camarero, Willy Tinner, Jan Esper, Andrew M. Liebhold	2013	103
10	A novel device for batch-wise isolation of α-cellulose from small-amount wholewood samples Dendrochronologia ·Thomas Wieloch, Gerhard Helle, Ingo Heinrich, Michael Voigt, Philipp Schyma	2011	102
11	Annual cyclicity in high‐resolution stable carbon and oxygen isotope ratios in the wood of the mangrove tree Rhizophora mucronata Plant Cell & Environment ·Anouk Verheyden, Gerhard Helle, Gerhard H. Schleser, F. Dehairs, Hans Beeckman, Nico Koedam	2004	101
12	Tree height strongly affects estimates of water-use efficiency responses to climate and CO2 using isotopes Nature Communications ·Roel Brienen, Emanuel Gloor, Santiago Clerici, Robert J. Newton, Laura Arppe, Arnoud Boom, Simon H. Bottrell, Max Callaghan, Timothy Heaton, Samuli Helama, Gerhard Helle, Melanie J. Leng, Kari Mielikäinen, M. Oinonen, Mauri Timonen	2017	100
13	Environmental history of the German Lower Rhine Embayment during the Middle Miocene as reflected by carbon isotopes in brown coal Palaeogeography Palaeoclimatology Palaeoecology ·Andreas Lücke, Gerhard Helle, Gerhard H. Schleser, Isabel Figueiral, Volker Mosbrugger, Timothy Peter Jones, Nick Rowe	1999	95
14	Climate signals in tree-ring width, density and δ13C from larches in Eastern Siberia (Russia) Chemical Geology ·Alexander V. Kirdyanov, Kerstin Treydte, (unknown), Gerhard Helle, Gerhard H. Schleser	2008	92
15	Multiple tree-ring chronologies (ring width, δ13C and δ18O) reveal dry and rainy season signals of rainfall in Indonesia Quaternary Science Reviews ·Karina Schollaen, Ingo Heinrich, Burkhard Neuwirth, Paul J. Krusic, Rosanne D’Arrigo, Oka Karyanto, Gerhard Helle	2013	79
16	Climate signals derived from cell anatomy of Scots pine in NE Germany Tree Physiology ·Wei Liang, Ingo Heinrich, Sonia Simard, Gerhard Helle, (unknown), Thilo Heinken	2013	64
17	Relationship between wood anatomy, tree-ring widths and wood density of Pinus sylvestris L. and climate at high latitudes in northern Sweden Dendrochronologia ·Carola Pritzkow, Ingo Heinrich, Håkan Grudd, Gerhard Helle	2014	61
18	Pooled versus separate measurements of tree-ring stable isotopes The Science of The Total Environment ·Isabel Dorado‐Liñán, Emília Gutiérrez, Gerhard Helle, Ingo Heinrich, Laia Andreu‐Hayles, Octavi Planells, Markus Leuenberger, Carmen Bürger, Gerhard H. Schleser	2011	59
19	Oxygen isotopes in tree rings show good coherence between species and sites in Bolivia Global and Planetary Change ·Jessica C. A. Baker, Sarah F.P. Hunt, Santiago Clerici, Robert J. Newton, Simon H. Bottrell, Melanie J. Leng, Timothy H. Heaton, Gerhard Helle, Jaime Argollo, Manuel Gloor, Roel Brienen	2015	57
20	Late Holocene relative humidity history on the southeastern Tibetan plateau inferred from a tree-ring δ 18 O record: Recent decrease and conditions during the last 1500 years Quaternary International ·Jussi Grießinger, Achim Bräuning, Gerhard Helle, Philipp Hochreuther, Gerhard H. Schleser	2016	55

About Gerhard Helle

Gerhard Helle is a scholar working on Atmospheric Science, Global and Planetary Change, Nature and Landscape Conservation, Ecology and Paleontology, having authored 107 papers that have together received 4.2k indexed citations. Recurring topics across this work include Tree-ring climate responses (87 papers), Plant Water Relations and Carbon Dynamics (73 papers), Geology and Paleoclimatology Research (55 papers), Climate variability and models (16 papers), Forest ecology and management (14 papers), Archaeology and ancient environmental studies (7 papers), Ecology and Vegetation Dynamics Studies (6 papers) and Isotope Analysis in Ecology (5 papers). The work is most often cited by research in Atmospheric Science (3.6k citations), Global and Planetary Change (3.2k citations), Nature and Landscape Conservation (994 citations), Paleontology (265 citations) and Geochemistry and Petrology (96 citations). Gerhard Helle has collaborated with scholars based in Germany, Switzerland and United States. Frequent co-authors include Gerhard H. Schleser, Ingo Heinrich, Kerstin Treydte, Jan Esper, David Frank, Laia Andreu‐Hayles, Heinz Vos, Matthias Winiger, Gerald H. Haug and Emília Gutiérrez. Their work appears in journals such as Dendrochronologia, Quaternary Science Reviews, Climate of the past, Palaeogeography Palaeoclimatology Palaeoecology and Tree Physiology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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