Geir Johnsen

134 papers and 5.0k indexed citations i.

About

Geir Johnsen is a scholar working on Oceanography, Ecology and Global and Planetary Change. According to data from OpenAlex, Geir Johnsen has authored 134 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 82 papers in Oceanography, 63 papers in Ecology and 21 papers in Global and Planetary Change. Recurrent topics in Geir Johnsen’s work include Marine and coastal ecosystems (62 papers), Marine Biology and Ecology Research (22 papers) and Marine and coastal plant biology (21 papers). Geir Johnsen is often cited by papers focused on Marine and coastal ecosystems (62 papers), Marine Biology and Ecology Research (22 papers) and Marine and coastal plant biology (21 papers). Geir Johnsen collaborates with scholars based in Norway, United States and United Kingdom. Geir Johnsen's co-authors include Egil Sakshaug, Per J. Jakobsen, Jørgen Berge, Martin Ludvigsen, Kjersti Andresen, Kasper Hancke, Einar Skarstad Egeland, Suzanne Roy, Carole A. Llewellyn and Heike Wägele and has published in prestigious journals such as PLoS ONE, Remote Sensing of Environment and Scientific Reports.

In The Last Decade

Co-authorship network of co-authors of Geir Johnsen i

Fields of papers citing papers by Geir Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Geir Johnsen

Since Specialization
Citations

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

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

Rankless by CCL
2025