Tobias Ullmann

107 total papers · 1.5k total citations
60 papers, 931 citations indexed

About

Tobias Ullmann is a scholar working on Atmospheric Science, Environmental Engineering and Global and Planetary Change. According to data from OpenAlex, Tobias Ullmann has authored 60 papers receiving a total of 931 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Atmospheric Science, 19 papers in Environmental Engineering and 16 papers in Global and Planetary Change. Recurrent topics in Tobias Ullmann’s work include Cryospheric studies and observations (13 papers), Synthetic Aperture Radar (SAR) Applications and Techniques (12 papers) and Climate change and permafrost (12 papers). Tobias Ullmann is often cited by papers focused on Cryospheric studies and observations (13 papers), Synthetic Aperture Radar (SAR) Applications and Techniques (12 papers) and Climate change and permafrost (12 papers). Tobias Ullmann collaborates with scholars based in Germany, Kazakhstan and Slovakia. Tobias Ullmann's co-authors include Michael Thiel, Roland Baumhauer, Gerald Forkuor, Christopher Conrad, Stefan Dech, Achim Roth, Andreas Schmitt, Claudia Kuenzer, Thomas Esch and Andreas Schenk and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Remote Sensing of Environment.

In The Last Decade

Co-authorship network of co-authors of Tobias Ullmann

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

Tobias Ullmann

57 papers receiving 912 citations

Fields of papers citing papers by Tobias Ullmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Tobias Ullmann

Since Specialization
Citations

This map shows the geographic impact of Tobias Ullmann'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 Tobias Ullmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tobias Ullmann 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
2026