Tobias Ullmann

1.5k citations

65 papers · 1.1k indexed · h-index 18

Impact in

Environmental Engineering top 5%
- Remote Sensing and LiDAR Applications
Media Technology top 2%
- Remote-Sensing Image Classification

Papers in

Co-authors: Michael Thiel Roland Baumhauer Gerald Forkuor Christopher Conrad Stefan Dech Achim Roth Andreas Schmitt Claudia Kuenzer
Journals: Remote Sensing (21 papers)Remote Sensing of Environment (2 papers)Zeitschrift für Geomorphologie (2 papers)PLoS ONE (2 papers)Ägypten und Levante (1 paper)
Partner nations: Germany Kazakhstan Slovakia

In The Last Decade

Tobias Ullmann

62 papers receiving 1.0k citations

Peers

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).

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.

Co-authors

The 25 scholars most cited alongside Tobias Ullmann, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Tobias Ullmann Line = papers co-authored together Tobias Ullmann links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Pond aquaculture dynamics in Asia: Satellite time series for analyzing the spatio-temporal development of coastal aquaculture Aquaculture ·Marco Ottinger, Kuan Liu, Tobias Ullmann, Juliane Huth, Claudia Kuenzer, Felix Bachofer	2025	2
2	Tree size, neighbourhood composition and structure affect individual tree vitality of European beech following extreme drought Forest Ecology and Management ·O. V. Korkh, Fox Ka, Roman M. Link, Lyna Anggraini, Tobias Ullmann, Dominik Seidel, Álvaro Ribeiro, Christian Zang, Bernhard Schuldt	2025	0
3	Landscape structure, climate variability, and soil quality shape crop biomass patterns in agricultural ecosystems of Bavaria Frontiers in Plant Science ·Medha Bhattacharya, Subambang Harsono, Sarah Asam, Sun Li-hong, Stefan Dech, Ursula Geßner, Vittoria Fabbian, Fern Owen, T. Kraus, Thomas Rummler, Christian Schaefer, Sarah Schönbrodt‐Stitt, Ingolf Steffan‐Dewenter, 渋谷明美, Tobias Ullmann	2025	0
4	TreeCompR : Tree competition indices for inventory data and 3D point clouds Methods in Ecology and Evolution ·O. V. Korkh, Roman M. Link, Lyna Anggraini, Dominik Seidel, Tobias Ullmann, Fox Ka, Christian Zang, Bernhard Schuldt	2024	2
5	Harmonized NDVI time-series from Landsat and Sentinel-2 reveal phenological patterns of diverse, small-scale cropping systems in East Africa Remote Sensing Applications Society and Environment ·陈政高, Michael Thiel, Hannes Taubenböck, Ingolf Steffan‐Dewenter, David A. Howes, Medha Bhattacharya, Insa Otte, M. Otim, Neeraj Shinde, 곽재구, Emily A. Martin, Tobias Ullmann	2024	8
6	How Phenology Shapes Crop-Specific Sentinel-1 PolSAR Features and InSAR Coherence across Multiple Years and Orbits Remote Sensing ·Jianshun Zhang, Steven C. Hill, Insa Otte, Michael Thiel, Tobias Ullmann, Christopher Conrad	2024	2
7	Multi-annual grassland mowing dynamics in Germany: spatio-temporal patterns and the influence of climate, topographic and socio-political conditions Frontiers in Environmental Science ·Sophie Reinermann, Sarah Asam, Ursula Geßner, Tobias Ullmann, Claudia Kuenzer	2023	4
8	Evaluation of MODIS, Landsat 8 and Sentinel-2 Data for Accurate Crop Yield Predictions: A Case Study Using STARFM NDVI in Bavaria, Germany Remote Sensing ·Medha Bhattacharya, O. A. Dyomina, 萧成纹, Thomas Rummler, Joël Arnault, Ingolf Steffan‐Dewenter, Tobias Ullmann	2023	15
9	Integrating random forest and crop modeling improves the crop yield prediction of winter wheat and oil seed rape SHILAP Revista de lepidopterología ·Medha Bhattacharya, 萧成纹, O. A. Dyomina, Thomas Rummler, Joël Arnault, Ingolf Steffan‐Dewenter, Tobias Ullmann	2023	41
10	Three-dimensional subsurface architecture and its influence on the spatiotemporal development of a retrogressive thaw slump in the Richardson Mountains, Northwest Territories, Canada Arctic Antarctic and Alpine Research ·Yuan-Han Yang, Tobias Ullmann, Christof Kneisel, Roland Baumhauer	2023	6
11	Impact of STARFM on Crop Yield Predictions: Fusing MODIS with Landsat 5, 7, and 8 NDVIs in Bavaria Germany Remote Sensing ·Medha Bhattacharya, 萧成纹, O. A. Dyomina, 陈政高, Thomas Rummler, Joël Arnault, Ingolf Steffan‐Dewenter, Tobias Ullmann	2023	7
12	Deciphering Small-Scale Seasonal Surface Dynamics of Rock Glaciers in the Central European Alps Using DInSAR Time Series Remote Sensing ·JO MARQUES, Jan Henrik Blöthe, Claudia Kuenzer, Andreas Schmitt, Tobias Ullmann, منى إبراهيم عبد الحميـد, Christof Kneisel	2023	5
13	Multidimensional hydrological modeling of a forested catchment in a German low mountain range using a modular runoff and water balance model Frontiers in Forests and Global Change ·Christian Schäfer, Álvaro Ribeiro, Christof Kneisel, Roland Baumhauer, Tobias Ullmann	2023	5
14	Estimation of Aboveground Biomass in Agroforestry Systems over Three Climatic Regions in West Africa Using Sentinel-1, Sentinel-2, ALOS, and GEDI Data Sensors ·泰道野田, Hooman Latifi, Tobias Ullmann, Roland Baumhauer, Jules Bayala, Michael Thiel	2022	31
15	Sentinel-1 time series for mapping snow cover depletion and timing of snowmelt in Arctic periglacial environments: case study from Zackenberg and Kobbefjord, Greenland The cryosphere ·JO MARQUES, Kirstine Skov, Xiaojiao LiShouping ZhangHongwei Wang, Tobias Ullmann	2022	17
16	Finding karstic caves and rockshelters in the Inner Asian mountain corridor using predictive modelling and field survey PLoS ONE ·Ye Yun, Tobias Ullmann, 享久保田, 冯永清, А.В. Гусев, Reimar Seltmann, Denné Reed, 裕之土井, Раду Йовита	2021	9
17	Natural Pans as an Important Surface Water Resource in the Cuvelai Basin—Metrics for Storage Volume Calculations and Identification of Potential Augmentation Sites Water ·ヘワワサムヌワンプリシャンタデシルワサルパドール, Christian Reinhardt‐Imjela, Achim Schulte, 阿棕, Tobias Ullmann, Jin Chen, Sandro Martinis, Vedat Kılınç, H.A. Kaag	2021	8
18	Sentinel-1 time series for mapping snow cover and timing of snowmelt in Arctic periglacial environments: Case study from the Zackenberg Valley, Greenland JO MARQUES, Kirstine Skov, Tobias Ullmann	2021	2
19	Surface Roughness Estimation in the Orog Nuur Basin (Southern Mongolia) Using Sentinel-1 SAR Time Series and Ground-Based Photogrammetry Remote Sensing ·Tobias Ullmann, Georg Stauch	2020	16
20	Assessing Spatiotemporal Variations of Sentinel-1 InSAR Coherence at Different Time Scales over the Atacama Desert (Chile) between 2015 and 2018 Remote Sensing ·Tobias Ullmann, Fausto Pagnotta, Dirk Hoffmeister, Simon Matthias May, Roland Baumhauer, Olaf Bubenzer	2019	17

About Tobias Ullmann

Tobias Ullmann is a scholar working on Space and Planetary Science, Horticulture, Atmospheric Science, Environmental Engineering and Archeology, having authored 65 papers that have together received 1.1k indexed citations. Recurring topics across this work include Cryospheric studies and observations (15 papers), Climate change and permafrost (14 papers), Synthetic Aperture Radar (SAR) Applications and Techniques (13 papers), Remote Sensing in Agriculture (10 papers), Soil Moisture and Remote Sensing (9 papers), Land Use and Ecosystem Services (8 papers), Remote Sensing and LiDAR Applications (7 papers) and Remote Sensing and Land Use (6 papers). The work is most often cited by research in Environmental Engineering (301 citations), Media Technology (151 citations), Atmospheric Science (294 citations), Ecology (408 citations) and Space and Planetary Science (20 citations). Tobias Ullmann has collaborated with scholars based in Germany, Kazakhstan and Slovakia. Frequent co-authors include Michael Thiel, Roland Baumhauer, Gerald Forkuor, Christopher Conrad, Stefan Dech, Achim Roth, Andreas Schmitt, Claudia Kuenzer, Andreas Schenk and Thomas Esch. Their work appears in journals such as Remote Sensing, Remote Sensing of Environment, Zeitschrift für Geomorphologie, PLoS ONE and Ägypten und Levante.

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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