Caspar Ammann

12.2k citations

70 papers · 7.3k indexed · 3 hit papers · h-index 36

Impact in

Atmospheric Science top 0.2%
- Geology and Paleoclimatology Research
- Tree-ring climate responses
- Atmospheric Ozone and Climate
- Meteorological Phenomena and Simulations
Global and Planetary Change top 0.2%
- Climate variability and models
- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics

Papers in

Atmospheric Science 56
- Geology and Paleoclimatology Research 33
- Tree-ring climate responses 30
- Cryospheric studies and observations 6
- Atmospheric Ozone and Climate 6
- Meteorological Phenomena and Simulations 6
Global and Planetary Change 51
- Climate variability and models 42
- Plant Water Relations and Carbon Dynamics 15
- Atmospheric and Environmental Gas Dynamics 12

Co-authors: Michael Mann Scott Rutherford Drew Shindell Malcolm K. Hughes Alan Robock Raymond S. Bradley Chaochao Gao Zhihua Zhang
Journals: Journal of Geophysical Research Atmospheres (13 papers)Journal of Climate (9 papers)Geophysical Research Letters (6 papers)Climatic Change (5 papers)Science (3 papers)
Partner nations: United States France United Kingdom

In The Last Decade

Caspar Ammann

68 papers receiving 7.1k citations

Hit Papers

align trajectories log scale

Climate forcing reconstructions for use in PMIP simulations of the last millennium (v1.0) 2011 · 394 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2011 Geoscientific model development
2009 Science
2008 Journal of Geophysical Research Atmospheres

Peers

Countries citing papers authored by Caspar Ammann

Since Specialization

Citations

This map shows the geographic impact of Caspar Ammann'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 Caspar Ammann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Caspar Ammann more than expected).

Fields of papers citing papers by Caspar Ammann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Caspar Ammann. 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 Caspar Ammann. The network helps show where Caspar Ammann may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Caspar Ammann, 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 Caspar Ammann Line = papers co-authored together Caspar Ammann links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Statistics of multi‐year droughts from the method for object‐based diagnostic evaluation International Journal of Climatology ·Abayomi A. Abatan, William J. Gutowski, Caspar Ammann, L. Kaatz, Barbara G. Brown, Lawrence Buja, Randy Bullock, Tressa Fowler, Eric Gilleland, John Halley Gotway	2018	8
2	Potential Impacts of Climate Change on Wind and Solar Electricity Generation in Texas AGUFM ·David Lebherz, Carlo Brancucci, Ignacio Carreño, Michael Rossol, Moetasim Ashfaq, Fulden Batıbeniz, Sue Ellen Haupt, Caspar Ammann, Henryk S. Michalak	2018	1
3	Multiyear Droughts and Pluvials over the Upper Colorado River Basin and Associated Circulations Journal of Hydrometeorology ·Abayomi A. Abatan, William J. Gutowski, Caspar Ammann, L. Kaatz, Barbara G. Brown, Lawrence Buja, Randy Bullock, Tressa Fowler, Eric Gilleland, John Halley Gotway	2017	11
4	Evaluating NARCCAP model performance for frequencies of severe-storm environments SHILAP Revista de lepidopterología ·Eric Gilleland, Melissa Bukovsky, Christopher Williams, Seth McGinnis, Caspar Ammann, Barbara G. Brown, Linda O. Mearns	2016	7
5	Late winter temperature response to large tropical volcanic eruptions in temperate western North America: Relationship to ENSO phases Global and Planetary Change ·Eugene R. Wahl, Henry F. Díaz, Jason E. Smerdon, Caspar Ammann	2014	38
6	Large-scale temperature response to external forcing in simulations and reconstructions of the last millennium Climate of the past ·L. Fernández-Donado, J. Fidel González‐Rouco, Christoph C. Raible, Caspar Ammann, David Barriopedro, Elena García‐Bustamante, J. Jungclaus, S. Lorenz, Jürg Luterbacher, Steven J. Phipps, Jérôme Servonnat, Didier Swingedouw, Simon F. B. Tett, Sebastian Wagner, Pascal Yiou, Eduardo Zorita	2013	110
7	Global dimming and brightening - evidence and agricultural implications EGU General Assembly Conference Abstracts ·Andreas Roesch, M. Wild, Caspar Ammann	2012	1
8	Climate forcing reconstructions for use in PMIP simulations of the Last Millennium (v1.1) Geoscientific model development ·Gavin A. Schmidt, Johann Jungclaus, Caspar Ammann, Édouard Bard, Pascale Braconnot, Thomas J. Crowley, Gilles Delaygue, Fortunat Joos, N. A. Krivova, Raimund Muscheler, Bette L. Otto‐Bliesner, Julia Pongratz, Drew Shindell, S. K. Solanki, F. Steinhilber, L. E. A. Vieira	2012	201
9	Climate forcing reconstructions for use in PMIP simulations of the last millennium (v1.0) Geoscientific model development ·Gavin A. Schmidt, Johann Jungclaus, Caspar Ammann, Édouard Bard, Taha S. Al-Sakka, Thomas J. Crowley, Gilles Delaygue, Fortunat Joos, N. A. Krivova, Raimund Muscheler, Bette L. Otto‐Bliesner, Julia Pongratz, Drew Shindell, S. K. Solanki, F. Steinhilber, L. E. A. Vieira Hit paper breakdown →	2011	394
10	Technical Note: Correcting for signal attenuation from noisy proxy data in climate reconstructions Climate of the past ·Caspar Ammann, Marc G. Genton, Zhouyuan Yu	2010	27
11	Climate engineering through artificial enhancement of natural forcings: Magnitudes and implied consequences Journal of Geophysical Research Atmospheres ·Caspar Ammann, Warren M. Washington, Gerald A. Meehl, Lawrence Buja, Haiyan Teng	2010	28
12	Correction to “Volcanic forcing of climate over the past 1500 years: An improved ice core–based index for climate models” Journal of Geophysical Research Atmospheres ·Chaochao Gao, Alan Robock, Caspar Ammann	2009	9
13	Semantic Mediation and Integration of Volcanic and Atmospheric Data:In Search of Statistical Signatures AGUFM ·P. N. Fox, Audrey Morissette, R. Raskin, Deborah L. McGuinness, Caspar Ammann, D. Y. Venezky, 水絵磯	2007	0
14	Robustness of the Mann, Bradley, Hughes reconstruction of Northern Hemisphere surface temperatures: Examination of criticisms based on the nature and processing of proxy climate evidence Climatic Change ·Eugene R. Wahl, Caspar Ammann	2007	74
15	Solar signal in records and simulations of past climates Memorie della Societa Astronomica Italiana ·Caspar Ammann	2005	1
16	Statistical methods for the analysis of climate extremes Comptes Rendus Géoscience ·Philippe Naveau, M. Nogaj, Caspar Ammann, Pascal Yiou, Daniel Cooley, Vincent Jomelli	2005	87
17	Comment on “Climate forcing by the volcanic eruption of Mount Pinatubo” by David H. Douglass and Robert S. Knox Geophysical Research Letters ·T. M. L. Wigley, Caspar Ammann, Benjamin D. Santer, Karl E. Taylor	2005	12
18	Proxy evidence for an El Niño-like response to volcanic forcing Nature ·J. Brad Adams, Michael Mann, Caspar Ammann	2003	380
19	Influence of Satellite Data Uncertainties on the Detection of Externally Forced Climate Change Science ·Benjamin D. Santer, T. M. L. Wigley, Gerald A. Meehl, Michael Wehner, C. A. Mears, Matthias C. Schabel, F. J. Wentz, Caspar Ammann, Julie M. Arblaster, Thomas W. Bettge, Warren M. Washington, Karl E. Taylor, J. S. Boyle, Wolfgang Brüggemann, Charles Doutriaux	2003	57
20	REGIONAL SNOWFALL PATTERNS IN THE HIGH, ARID ANDES Climatic Change ·Mathias Vuille, Caspar Ammann	1997	137

About Caspar Ammann

Caspar Ammann is a scholar working on Atmospheric Science, Global and Planetary Change, Paleontology, Ecological Modeling and Astronomy and Astrophysics, having authored 70 papers that have together received 7.3k indexed citations. Recurring topics across this work include Climate variability and models (42 papers), Geology and Paleoclimatology Research (33 papers), Tree-ring climate responses (30 papers), Plant Water Relations and Carbon Dynamics (15 papers), Atmospheric and Environmental Gas Dynamics (12 papers), Cryospheric studies and observations (6 papers), Atmospheric Ozone and Climate (6 papers) and Meteorological Phenomena and Simulations (6 papers). The work is most often cited by research in Atmospheric Science (6.2k citations), Global and Planetary Change (4.7k citations), Paleontology (646 citations), Earth-Surface Processes (396 citations) and Oceanography (657 citations). Caspar Ammann has collaborated with scholars based in United States, France and United Kingdom. Frequent co-authors include Michael Mann, Scott Rutherford, Drew Shindell, Malcolm K. Hughes, Alan Robock, Raymond S. Bradley, Chaochao Gao, Zhihua Zhang, G. Faluvegi and Fenbiao Ni. Their work appears in journals such as Journal of Geophysical Research Atmospheres, Journal of Climate, Geophysical Research Letters, Climatic Change and Science.

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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