Hans W. Jannasch

4.1k total citations · 1 hit paper
62 papers, 3.0k citations indexed

About

Hans W. Jannasch is a scholar working on Oceanography, Environmental Chemistry and Atmospheric Science. According to data from OpenAlex, Hans W. Jannasch has authored 62 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Oceanography, 15 papers in Environmental Chemistry and 10 papers in Atmospheric Science. Recurrent topics in Hans W. Jannasch's work include Marine and coastal ecosystems (25 papers), Methane Hydrates and Related Phenomena (13 papers) and Oceanographic and Atmospheric Processes (12 papers). Hans W. Jannasch is often cited by papers focused on Marine and coastal ecosystems (25 papers), Methane Hydrates and Related Phenomena (13 papers) and Oceanographic and Atmospheric Processes (12 papers). Hans W. Jannasch collaborates with scholars based in United States, Canada and Germany. Hans W. Jannasch's co-authors include Kenneth S. Johnson, David A. Siegel, J. McNeil, Tommy D. Dickey, Anthony H. Knap, Allan R. Robinson, Dennis J. McGillicuddy, Rodney J. Johnson, Anthony F. Michaels and Luke J. Coletti and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and Environmental Science & Technology.

In The Last Decade

Hans W. Jannasch

61 papers receiving 2.9k citations

Hit 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.

Influence of mesoscale eddies on new production in the Sargasso Sea

1998 821 citations Dennis J. McGillicuddy, Allan R. Robinson et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Hans W. Jannasch United States	27	2.0k	724	643	549	525	62	3.0k
Michael D. DeGrandpre United States	33	2.3k 1.1×	776 1.1×	539 0.8×	533 1.0×	479 0.9×	76	3.3k
Kent A. Fanning United States	30	1.8k 0.9×	526 0.7×	815 1.3×	662 1.2×	739 1.4×	49	3.0k
D.J. Hydes United Kingdom	33	1.6k 0.8×	437 0.6×	451 0.7×	857 1.6×	483 0.9×	77	3.3k
Jens K. Gundersen Denmark	18	1.5k 0.7×	335 0.5×	1.0k 1.6×	304 0.6×	725 1.4×	21	2.7k
Carole M. Sakamoto United States	17	2.0k 1.0×	395 0.5×	918 1.4×	474 0.9×	349 0.7×	27	2.7k
Géraldine Sarthou France	35	2.7k 1.4×	449 0.6×	1.1k 1.7×	1.0k 1.9×	605 1.2×	92	4.1k
Anders Tengberg Sweden	26	1.3k 0.6×	260 0.4×	583 0.9×	265 0.5×	487 0.9×	60	2.0k
Tung‐Yuan Ho Taiwan	28	1.8k 0.9×	321 0.4×	1.0k 1.6×	480 0.9×	493 0.9×	81	3.2k
Patrick Laan Netherlands	43	2.5k 1.3×	382 0.5×	1.2k 1.8×	1.2k 2.2×	543 1.0×	71	4.3k
F.L. Sayles United States	29	1.1k 0.5×	235 0.3×	424 0.7×	668 1.2×	585 1.1×	45	2.3k

Countries citing papers authored by Hans W. Jannasch

Since Specialization

Citations

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

Fields of papers citing papers by Hans W. Jannasch

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hans W. Jannasch. 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 Hans W. Jannasch. The network helps show where Hans W. Jannasch may publish in the future.

Co-authorship network of co-authors of Hans W. Jannasch

This figure shows the co-authorship network connecting the top 25 collaborators of Hans W. Jannasch. A scholar is included among the top collaborators of Hans W. Jannasch 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 Hans W. Jannasch. Hans W. Jannasch is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Johnson, Kenneth S., Matthew R. Mazloff, Yuichiro Takeshita, et al.. (2022). Carbon to Nitrogen Uptake Ratios Observed Across the Southern Ocean by the SOCCOM Profiling Float Array. Journal of Geophysical Research Oceans. 127(9). 9 indexed citations

Wheat, C.G., et al.. (2020). A new high-temperature borehole fluid sampler: the Multi-Temperature Fluid Sampler. Scientific Drilling. 28. 43–48. 2 indexed citations

Staudinger, Christoph, Jan Fischer, Roland Thar, et al.. (2018). A validation and comparison study of new, compact, versatile optodes for oxygen, pH and carbon dioxide in marine environments. Marine Chemistry. 207. 63–76. 20 indexed citations

Johnson, Kenneth S., Joshua N. Plant, Luke J. Coletti, et al.. (2017). Biogeochemical sensor performance in the SOCCOM profiling float array. Journal of Geophysical Research Oceans. 122(8). 6416–6436. 202 indexed citations

Sakamoto, Carole M., Kenneth S. Johnson, Luke J. Coletti, & Hans W. Jannasch. (2017). Pressure correction for the computation of nitrate concentrations in seawater using an in situ ultraviolet spectrophotometer. Limnology and Oceanography Methods. 15(10). 897–902. 15 indexed citations

Sakamoto, Carole M., Kenneth S. Johnson, Luke J. Coletti, et al.. (2017). Hourly In Situ Nitrate on a Coastal Mooring: A 15-Year Record and Insights into New Production. Oceanography. 30(4). 114–127. 12 indexed citations

Wheat, C.G., Katrina J. Edwards, Hans W. Jannasch, et al.. (2012). CORK-Lite: Bringing Legacy Boreholes Back to Life. Scientific Drilling. 14. 39–43. 7 indexed citations

Fisk, M. R., et al.. (2010). Differential Bacterial Colonization of Volcanic Minerals in Deep Thermal Basalts. LPICo. 1538. 5257.

Johnson, Kenneth S., Luke J. Coletti, Hans W. Jannasch, et al.. (2008). Long-Term Observations of Ocean Biogeochemistry with Nitrate and Oxygen Sensors in Apex Profiling Floats. AGUFM. 2008. 1 indexed citations

10.

Smith, Abigail M., Melany C. Fisk, Mark E. Nielsen, et al.. (2008). Sub-seafloor Microbial Colonization of Igneous Minerals and Glasses. AGUFM. 2008. 1 indexed citations

11.

Martz, Todd R., et al.. (2008). ISFET sensor evaluation and modification for seawater pH measurement. AGUFM. 2008. 2 indexed citations

12.

Solomon, E. A., et al.. (2004). Long-Term Continuous Monitoring of Fluid Chemistry and Flux at the Bush Hill Gas Hydrate Field, Gulf of Mexico Using a New Flow Meter, The MOSQUITO. AGUFM. 2004. 3 indexed citations

13.

Wheat, C.G., Hans W. Jannasch, Miriam Kastner, et al.. (2004). Venting formation fluids from deep‐sea boreholes in a ridge flank setting: ODP Sites 1025 and 1026. Geochemistry Geophysics Geosystems. 5(8). 35 indexed citations

14.

Chapin, Thomas P., et al.. (2004). Nitrate sources and sinks in Elkhorn Slough, California: Results from long-term continuous in situ nitrate analyzers. Estuaries. 27(5). 882–894. 47 indexed citations

15.

Weinstein, Yishai, Miriam Kastner, & Hans W. Jannasch. (2003). The MOSQUITO: a new sampler for monitoring fluid and solute fluxes between the sediment and the ocean. EAEJA. 13720. 2 indexed citations

16.

Kastner, Miriam, Hans W. Jannasch, Yishai Weinstein, & Jonathan B. Martin. (2002). A new sampler for monitoring fluid and chemical fluxes in hydrologically active submarine environments. 1. 109–112. 3 indexed citations

17.

Plant, Joshua N., C.G. Wheat, & Hans W. Jannasch. (2001). A Peek at Fluid Flow in Monterey bay Cold Seeps Using Peepers. AGUFM. 2001. 3 indexed citations

18.

Wheat, C.G., Hans W. Jannasch, Josh N. Plant, et al.. (2000). Continuous sampling of hydrothermal fluids from Loihi Seamount after the 1996 event. Journal of Geophysical Research Atmospheres. 105(B8). 19353–19367. 57 indexed citations

19.

McGillicuddy, Dennis J., Allan R. Robinson, David A. Siegel, et al.. (1998). Influence of mesoscale eddies on new production in the Sargasso Sea. Nature. 394(6690). 263–266. 821 indexed citations breakdown →

20.

Murray, James W., et al.. (1989). Nutrient assimilation, export production and 234Th scavenging in the eastern equatorial Pacific. Deep Sea Research Part A Oceanographic Research Papers. 36(10). 1471–1489. 157 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.

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