Daniel M. Sigman

38.8k total citations · 12 hit papers
240 papers, 28.1k citations indexed

About

Daniel M. Sigman is a scholar working on Ecology, Oceanography and Atmospheric Science. According to data from OpenAlex, Daniel M. Sigman has authored 240 papers receiving a total of 28.1k indexed citations (citations by other indexed papers that have themselves been cited), including 168 papers in Ecology, 149 papers in Oceanography and 131 papers in Atmospheric Science. Recurrent topics in Daniel M. Sigman's work include Isotope Analysis in Ecology (152 papers), Marine and coastal ecosystems (133 papers) and Geology and Paleoclimatology Research (111 papers). Daniel M. Sigman is often cited by papers focused on Isotope Analysis in Ecology (152 papers), Marine and coastal ecosystems (133 papers) and Geology and Paleoclimatology Research (111 papers). Daniel M. Sigman collaborates with scholars based in United States, Germany and Switzerland. Daniel M. Sigman's co-authors include Gerald H. Haug, Larry C. Peterson, Karen L. Casciotti, Julie Granger, Konrad A Hughen, Meredith G. Hastings, Edward A. Boyle, J. K. Böhlke, Ursula Röhl and Samuel L. Jaccard and has published in prestigious journals such as Nature, Science and Chemical Reviews.

In The Last Decade

Daniel M. Sigman

236 papers receiving 27.3k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Southward Migration of the Intertropical Convergence Zone Through the Holocene

2001 1.9k citations Gerald H. Haug, Daniel M. Sigman et al. Science profile →
A Bacterial Method for the Nitrogen Isotopic Analysis of Nitrate in Seawater and Freshwater

2001 1.6k citations Daniel M. Sigman, Karen L. Casciotti et al. profile →
Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method

2002 1.3k citations Karen L. Casciotti, Daniel M. Sigman et al. profile →
Glacial/interglacial variations in atmospheric carbon dioxide

2000 1.0k citations Daniel M. Sigman et al. profile →
Influence of the intertropical convergence zone on the East Asian monsoon

2007 789 citations Daniel M. Sigman, Gerald H. Haug et al. profile →
Climate and the Collapse of Maya Civilization

2003 693 citations Gerald H. Haug, Daniel M. Sigman et al. Science profile →
The polar ocean and glacial cycles in atmospheric CO2 concentration

2010 625 citations Daniel M. Sigman, Mathis P. Hain et al. profile →
Spatial coupling of nitrogen inputs and losses in the ocean

2007 569 citations Daniel M. Sigman et al. profile →
Dinitrogen fixation in the world's oceans

2002 547 citations Fredric Lipschultz, Daniel M. Sigman et al. profile →
Iron Fertilization of the Subantarctic Ocean During the Last Ice Age

2014 362 citations Alfredo Martínez‐García, Daniel M. Sigman et al. Science profile →
Links between tropical rainfall and North Atlantic climate during the last glacial period

2013 358 citations Daniel M. Sigman, Gerald H. Haug et al. Nature Geoscience profile →
Global Nitrogen Cycle: Critical Enzymes, Organisms, and Processes for Nitrogen Budgets and Dynamics

2020 291 citations Daniel M. Sigman et al. profile →

Peers

Countries citing papers authored by Daniel M. Sigman

Since Specialization

Citations

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

Fields of papers citing papers by Daniel M. Sigman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Daniel M. Sigman. 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 Daniel M. Sigman. The network helps show where Daniel M. Sigman may publish in the future.

Co-authorship network of co-authors of Daniel M. Sigman

This figure shows the co-authorship network connecting the top 25 collaborators of Daniel M. Sigman. A scholar is included among the top collaborators of Daniel M. Sigman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Daniel M. Sigman. Daniel M. Sigman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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

20 of 20 papers shown

#	Work	Indexed citations
1	Persistent eastern equatorial Pacific Ocean upwelling since the warm Pliocene 2025 ·Science ·Patrick A. Rafter, Jesse R. Farmer, Alfredo Martínez‐García, Ana Christina Ravelo, Kristopher B. Karnauskas, (unknown), Stefano M. Bernasconi, Haojia Ren, Alexandra Auderset, Gerald H. Haug, Daniel M. Sigman	0
2	Tracking Agulhas Leakage in the South Atlantic Using Modern Planktic Foraminifera Nitrogen Isotopes 2024 ·Geochemistry Geophysics Geosystems ·(unknown), Sandi M. Smart, (unknown), Alexandra Auderset, (unknown), (unknown), (unknown), Daniel M. Sigman, Alfredo Martínez‐García, Sarah E. Fawcett	1
3	The southward migration of the Antarctic Circumpolar Current enhanced oceanic degassing of carbon dioxide during the last two deglaciations 2024 ·Communications Earth & Environment ·Xuyuan Ai, Lena Thöle, Alexandra Auderset, (unknown), Simone Moretti, Anja S Studer, Élisabeth Michel, Martin Wegmann, Alain Mazaud, Peter K. Bijl, Daniel M. Sigman, Alfredo Martínez‐García, Samuel L. Jaccard	9
4	Tracing the fate of seabird‐derived nitrogen in a coral reef using nitrate and coral skeleton nitrogen isotopes 2024 ·Limnology and Oceanography ·(unknown), Nicolas Duprey, (unknown), (unknown), Fanny Houlbrèque, (unknown), Pascale Cuet, Mireille M. M. Guillaume, Hubert Vonhof, Daniel M. Sigman, Gerald H. Haug, Jean‐François Maguer, Stéphane L’Helguen, Alfredo Martínez‐García, Anne Lorrain	5
5	Oceanic nutrient rise and the late Miocene inception of Pacific oxygen-deficient zones 2022 ·Proceedings of the National Academy of Sciences ·Xingchen Wang, Yuwei Wang, Alexandra Auderset, Daniel M. Sigman, Haojia Ren, Alfredo Martínez‐García, Gerald H. Haug, (unknown), Yige Zhang, Birger Rasmussen, Alex L. Sessions, Woodward W. Fischer	10
6	Cenozoic megatooth sharks occupied extremely high trophic positions 2022 ·Science Advances ·(unknown), Michael L. Griffiths, Sora L. Kim, (unknown), Kenshu Shimada, Martin A. Becker, (unknown), Robert A. Eagle, (unknown), (unknown), (unknown), Tina Lüdecke, Jennifer Leichliter, Alfredo Martínez‐García, Alliya A. Akhtar, Xingchen Wang, Gerald H. Haug, Daniel M. Sigman	31
7	The Angola Gyre is a hotspot of dinitrogen fixation in the South Atlantic Ocean 2022 ·Communications Earth & Environment ·(unknown), Julie Granger, Karen L. Casciotti, Kirstin Dähnke, Kay‐Christian Emeis, Dario Marconi, Matthew R. McIlvin, Abigail E. Noble, Mak A. Saito, Daniel M. Sigman, Sarah E. Fawcett	15
8	The Nitrogen Isotopic Composition of Tissue and Shell‐Bound Organic Matter of Planktic Foraminifera in Southern Ocean Surface Waters 2020 ·Geochemistry Geophysics Geosystems ·Sandi M. Smart, Sarah E. Fawcett, Haojia Ren, Ralf Schiebel, (unknown), Alfredo Martínez‐García, (unknown), Alakendra N. Roychoudhury, Gerald H. Haug, Daniel M. Sigman	24
9	Dissolved Organic Nitrogen Cycling in the South China Sea From an Isotopic Perspective 2020 ·Global Biogeochemical Cycles ·Run Zhang, Xingchen Wang, Haojia Ren, Jie Huang, Min Chen, Daniel M. Sigman	27
10	Nitrogen isotope evidence for expanded ocean suboxia in the early Cenozoic 2019 ·Science ·(unknown), Daniel A. Stolper, Alexandra Auderset, John A. Higgins, Haojia Ren, Xingchen Wang, Alfredo Martínez‐García, Gerald H. Haug, Daniel M. Sigman	49
11	Natural forcing of the North Atlantic nitrogen cycle in the Anthropocene 2018 ·Proceedings of the National Academy of Sciences ·Xingchen Wang, Anne L. Cohen, (unknown), Haojia Ren, Zhan Su, Gerald H. Haug, Daniel M. Sigman	30
12	Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise 2018 ·Nature Geoscience ·Anja S Studer, Daniel M. Sigman, Alfredo Martínez‐García, Lena Thöle, Élisabeth Michel, Samuel L. Jaccard, Jörg Lippold, Alain Mazaud, Xingchen Wang, Laura F. Robinson, Jess F. Adkins, Gerald H. Haug	40
13	Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age 2017 ·Proceedings of the National Academy of Sciences ·Xingchen Wang, Daniel M. Sigman, Maria G. Prokopenko, Jess F. Adkins, Laura F. Robinson, S.K.V. Hines, (unknown), Anja S Studer, Alfredo Martínez‐García, Tianyu Chen, Gerald H. Haug	55
14	Photosymbiosis and the expansion of shallow-water corals 2016 ·Science Advances ·(unknown), Xingchen Wang, Daniel M. Sigman, Anne M. Gothmann, Marcelo Visentini Kitahara, Maciej Mazur, Anders Meibom, Jarosław Stolarski	63
15	The effects of secular calcium and magnesium concentration changes on the thermodynamics of seawater acid/base chemistry: Implications for Eocene and Cretaceous ocean carbon chemistry and buffering 2015 ·Global Biogeochemical Cycles ·Mathis P. Hain, Daniel M. Sigman, John A. Higgins, Gerald H. Haug	69
16	A climate-driven switch in plant nitrogen acquisition within tropical forest communities 2007 ·Proceedings of the National Academy of Sciences ·Benjamin Z. Houlton, Daniel M. Sigman, Edward A. G. Schuur, Lars O. Hedin	256
17	Isotopic evidence for large gaseous nitrogen losses from tropical rainforests 2006 ·Proceedings of the National Academy of Sciences ·Benjamin Z. Houlton, Daniel M. Sigman, Lars O. Hedin	272
18	N isotopic composition of dissolved organic nitrogen and nitrate at the Bermuda Atlantic Time‐series Study site 2005 ·Global Biogeochemical Cycles ·Angela N. Knapp, Daniel M. Sigman, Fredric Lipschultz	299
19	Revisiting nutrient utilization in the glacial Antarctic: Evidence from a new method for diatom‐bound N isotopic analysis 2004 ·Paleoceanography ·Rebecca S. Robinson, Brigitte G. Brunelle, Daniel M. Sigman	110
20	The role of biological production in pleistocene atmospheric carbon dioxide variations and the nitrogen isotope dynamics of the southern ocean 1997 ·Open Access Server of the Woods Hole Scientific Community (Woods Hole Scientific Community) ·Daniel M. Sigman	18

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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