Robert M. Key

23.6k total citations · 5 hit papers
104 papers, 11.9k citations indexed

About

Robert M. Key is a scholar working on Oceanography, Atmospheric Science and Global and Planetary Change. According to data from OpenAlex, Robert M. Key has authored 104 papers receiving a total of 11.9k indexed citations (citations by other indexed papers that have themselves been cited), including 79 papers in Oceanography, 35 papers in Atmospheric Science and 33 papers in Global and Planetary Change. Recurrent topics in Robert M. Key's work include Marine and coastal ecosystems (67 papers), Ocean Acidification Effects and Responses (37 papers) and Oceanographic and Atmospheric Processes (33 papers). Robert M. Key is often cited by papers focused on Marine and coastal ecosystems (67 papers), Ocean Acidification Effects and Responses (37 papers) and Oceanographic and Atmospheric Processes (33 papers). Robert M. Key collaborates with scholars based in United States, Germany and Norway. Robert M. Key's co-authors include Rik Wanninkhof, Richard A. Feely, Frank J. Millero, Jorge L. Sarmiento, Kitack Lee, Christopher L. Sabine, John L. Bullister, Nicolas Gruber, Alex Kozyr and Douglas W.R. Wallace and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of Geophysical Research Atmospheres.

In The Last Decade

Robert M. Key

102 papers receiving 11.4k 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.

The Oceanic Sink for Anthropogenic CO ₂

2004 2.9k citations Christopher L. Sabine, Richard A. Feely et al. Science profile →
A global ocean carbon climatology: Results from Global Data Analysis Project (GLODAP)

2004 1.3k citations Robert M. Key, Alex Kozyr et al. Global Biogeochemical Cycles profile →
The oceanic sink for anthropogenic CO ₂ from 1994 to 2007

2019 545 citations Nicolas Gruber, Dominic Clement et al. Science profile →
The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internallyconsistent data product for the world ocean

2016 443 citations Are Olsen, Robert M. Key et al. Earth system science data profile →
A new global interior ocean mapped climatology: the 1° ×  1° GLODAP version 2

2016 317 citations Siv K. Lauvset, Robert M. Key et al. Earth system science data profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Robert M. Key United States	47	8.9k	4.2k	3.5k	2.6k	1.9k	104	11.9k
Paul D. Quay United States	52	5.7k 0.6×	2.9k 0.7×	3.5k 1.0×	4.1k 1.5×	2.4k 1.3×	115	10.3k
Claudia R. Benitez‐Nelson United States	45	4.6k 0.5×	1.7k 0.4×	1.7k 0.5×	2.3k 0.9×	1.6k 0.9×	146	7.7k
Ken O. Buesseler United States	72	10.9k 1.2×	5.4k 1.3×	2.6k 0.7×	4.6k 1.7×	1.8k 1.0×	211	16.6k
T. D. Jickells United Kingdom	61	5.4k 0.6×	3.7k 0.9×	6.4k 1.8×	2.6k 1.0×	1.5k 0.8×	131	13.1k
Ellen R. M. Druffel United States	63	6.0k 0.7×	2.7k 0.6×	4.9k 1.4×	6.5k 2.5×	1.8k 1.0×	227	12.3k
J. Keith Moore United States	50	7.5k 0.8×	3.6k 0.8×	3.3k 0.9×	2.7k 1.0×	1.1k 0.6×	89	10.4k
Andrew G. Dickson United States	44	10.2k 1.1×	3.7k 0.9×	1.5k 0.4×	3.2k 1.2×	1.3k 0.7×	96	13.4k
Alex R. Baker United Kingdom	56	4.6k 0.5×	4.1k 1.0×	7.2k 2.0×	1.5k 0.6×	942 0.5×	125	11.9k
Tsung‐Hung Peng United States	32	3.3k 0.4×	2.0k 0.5×	2.6k 0.7×	1.6k 0.6×	1.1k 0.6×	48	6.0k
E. Maier‐Reimer Germany	56	5.8k 0.6×	4.6k 1.1×	5.2k 1.5×	1.4k 0.5×	1.6k 0.9×	129	9.9k

Countries citing papers authored by Robert M. Key

Since Specialization

Citations

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

Fields of papers citing papers by Robert M. Key

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Robert M. Key

This figure shows the co-authorship network connecting the top 25 collaborators of Robert M. Key. A scholar is included among the top collaborators of Robert M. Key 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 Robert M. Key. Robert M. Key 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

Rossi, C., J. Bauche, Rachel Corsini, et al.. (2025). The CLIC technology for an electron flash therapy facility. The European Physical Journal Special Topics.

Druffel, Ellen R. M., Sheila Griffin, Robert M. Key, et al.. (2023). Dissolved Organic Radiocarbon in the West Indian Ocean. Geophysical Research Letters. 50(19). 4 indexed citations

Druffel, Ellen R. M., et al.. (2021). Dissolved Organic Radiocarbon in the Eastern Pacific and Southern Oceans. Geophysical Research Letters. 48(10). 22 indexed citations

Haumann, F. Alexander, Stephen C. Riser, Lars H. Smedsrud, et al.. (2021). Supercooled Southern Ocean Waters. 2 indexed citations

Pérez, Fı́z F., A. Velo, Mario Hoppema, et al.. (2020). A global monthly climatology of oceanic total dissolved inorganic carbon: a neural network approach. Earth system science data. 12(3). 1725–1743. 31 indexed citations

Haumann, F. Alexander, Stephen C. Riser, Lars H. Smedsrud, et al.. (2020). Supercooled Southern Ocean Waters. Geophysical Research Letters. 47(20). 24 indexed citations

Gruber, Nicolas, Dominic Clement, Brendan R. Carter, et al.. (2019). The oceanic sink for anthropogenic CO ₂ from 1994 to 2007. Science. 363(6432). 1193–1199. 545 indexed citations breakdown →

Clement, Dominic, Steven van Heuven, Mario Hoppema, et al.. (2019). The oceanic sink for anthropogenic CO2 from 1994 to 2007 - the data (NCEI Accession 0186034). Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut). 6 indexed citations

Druffel, Ellen R. M., Sheila Griffin, Ning Wang, et al.. (2019). Dissolved Organic Radiocarbon in the Central Pacific Ocean. Geophysical Research Letters. 46(10). 5396–5403. 29 indexed citations

10.

Pérez, Fı́z F., A. Velo, Mario Hoppema, et al.. (2019). A global monthly climatology of total alkalinity: a neural network approach. Earth system science data. 11(3). 1109–1127. 43 indexed citations

11.

Jull, Andrew, Jocelyn Turnbull, Gonzalo Aranda Jiménez, et al.. (2018). RDC volume 60 issue 1 Cover and Front matter. Radiocarbon. 60(1). f1–f5. 1 indexed citations

12.

Talley, Lynne D., Isabella Rosso, Igor Kamenkovich, et al.. (2018). Southern Ocean Biogeochemical Float Deployment Strategy, With Example From the Greenwich Meridian Line (GO‐SHIP A12). Journal of Geophysical Research Oceans. 124(1). 403–431. 27 indexed citations

13.

Lauvset, Siv K., Robert M. Key, Are Olsen, et al.. (2016). A new global interior ocean mapped climatology: the 1° ×  1° GLODAP version 2. Earth system science data. 8(2). 325–340. 317 indexed citations breakdown →

14.

Olsen, Are, Robert M. Key, Steven van Heuven, et al.. (2016). The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internallyconsistent data product for the world ocean. Earth system science data. 8(2). 297–323. 443 indexed citations breakdown →

15.

Olsen, Are, Robert M. Key, Steven van Heuven, et al.. (2016). An internally consistent data product for the world ocean: the Global Ocean Data Analysis Project, version 2 (GLODAPv2). Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut). 8 indexed citations

16.

Iudicone, Daniele, Keith B. Rodgers, Yves Plancherel, et al.. (2016). The formation of the ocean’s anthropogenic carbon reservoir. Scientific Reports. 6(1). 35473–35473. 48 indexed citations

17.

Manizza, Manfredi, Michael J. Follows, Stephanie Dutkiewicz, et al.. (2013). Changes in the Arctic Ocean CO₂ sink (1996–2007): A regional model analysis. Global Biogeochemical Cycles. 27(4). 1108–1118. 40 indexed citations

18.

Key, Robert M., Alex Kozyr, C. Sabine, et al.. (2004). A global ocean carbon climatology: Results from Global Data Analysis Project (GLODAP). Global Biogeochemical Cycles. 18(4). 1340 indexed citations breakdown →

19.

Wanninkhof, Rik, Tianji Peng, Robert M. Key, et al.. (2004). An Updated Anthropogenic CO 2 Inventory in the Atlantic Ocean. AGU Fall Meeting Abstracts. 2004. 3 indexed citations

20.

Key, Robert M., Robert F. Stallard, Willard S. Moore, & Jorge L. Sarmiento. (1985). Distribution and flux of ²²⁶Ra and ²²⁸Ra in the Amazon River estuary. Journal of Geophysical Research Atmospheres. 90(C4). 6995–7004. 110 indexed citations

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.

Explore authors with similar magnitude of impact