Tobias Ullmann

30 papers C 3Journal 25Unranked 1
YearRankTypeTitle / Venue / Authors
2026 J jnl
Co-occurrence network analysis of urban acoustic environments: Structural archetypes and perceived quality.
Comput. Environ. Urban Syst.
Nils Karges, Timo Haselhoff, Hannes Taubenböck, Tobias Ullmann, Jürgen Rauh
2025 — conf
The Relation of Land Surface Temperature and Trees across Different Urban Land Use Classes based on Remote Sensing.
JURSE
Andrea Sofía García-de-León, Antonio Castañeda-Gómez, Nils Karges, Tobias Leichtle, Thomas Rötzer, Klaus Martin, Tobias Ullmann, Hannes Taubenböck
2024 J jnl
How Phenology Shapes Crop-Specific Sentinel-1 PolSAR Features and InSAR Coherence across Multiple Years and Orbits.
Remote. Sens.
Johannes Löw, Steven Hill, Insa Otte, Michael Thiel, Tobias Ullmann, Christopher Conrad
2024 J jnl
The Influence of Commuting on Population Exposure to Air Pollution: Toward Global Application With a Proxy on the Degree of Urbanization.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Lorenza Gilardi, Thilo Erbertseder, Frank Baier, Heiko Paeth, Tobias Ullmann, Hannes Taubenböck
2023 J jnl
A Circum-Arctic Monitoring Framework for Quantifying Annual Erosion Rates of Permafrost Coasts.
Remote. Sens.
Marius B. Philipp, Andreas J. Dietz, Tobias Ullmann, Claudia Kuenzer
2023 J jnl
Deciphering Small-Scale Seasonal Surface Dynamics of Rock Glaciers in the Central European Alps Using DInSAR Time Series.
Remote. Sens.
Sebastian Buchelt, Jan Henrik Blöthe, Claudia Kuenzer, Andreas Schmitt, Tobias Ullmann, Marius B. Philipp, Christof Kneisel
2023 J jnl
Estimation of Aboveground Biomass in Agroforestry Systems over Three Climatic Regions in West Africa Using Sentinel-1, Sentinel-2, ALOS, and GEDI Data.
Sensors
Dan Kanmegne Tamga, Hooman Latifi, Tobias Ullmann, Roland Baumhauer, Jules Bayala, Michael Thiel
2023 J jnl
Evaluation of MODIS, Landsat 8 and Sentinel-2 Data for Accurate Crop Yield Predictions: A Case Study Using STARFM NDVI in Bavaria, Germany.
Remote. Sens.
Maninder Singh Dhillon, Carina Kuebert-Flock, Thorsten Dahms, Thomas Rummler, Joel Arnault, Ingolf Steffan-Dewenter, Tobias Ullmann
2023 J jnl
Impact of STARFM on Crop Yield Predictions: Fusing MODIS with Landsat 5, 7, and 8 NDVIs in Bavaria Germany.
Remote. Sens.
Maninder Singh Dhillon, Thorsten Dahms, Carina Kuebert-Flock, Adomas Liepa, Thomas Rummler, Joel Arnault, Ingolf Steffan-Dewenter, Tobias Ullmann
2022 J jnl
Automated Extraction of Annual Erosion Rates for Arctic Permafrost Coasts Using Sentinel-1, Deep Learning, and Change Vector Analysis.
Remote. Sens.
Marius B. Philipp, Andreas J. Dietz, Tobias Ullmann, Claudia Kuenzer
2022 J jnl
Comparing PlanetScope and Sentinel-2 Imagery for Mapping Mountain Pines in the Sarntal Alps, Italy.
Remote. Sens.
Moritz Rösch, Ruth Sonnenschein, Sebastian Buchelt, Tobias Ullmann
2022 J jnl
Detection of Grassland Mowing Events for Germany by Combining Sentinel-1 and Sentinel-2 Time Series.
Remote. Sens.
Sophie Reinermann, Ursula Gessner, Sarah Asam, Tobias Ullmann, Anne Schucknecht, Claudia Kuenzer
2022 J jnl
Spatiotemporal Fusion Modelling Using STARFM: Examples of Landsat 8 and Sentinel-2 NDVI in Bavaria.
Remote. Sens.
Maninder Singh Dhillon, Thorsten Dahms, Carina Kuebert-Flock, Ingolf Steffan-Dewenter, Jie Zhang, Tobias Ullmann
2022 J jnl
State of the Vietnamese Coast - Assessing Three Decades (1986 to 2021) of Coastline Dynamics Using the Landsat Archive.
Remote. Sens.
Ronja Lappe, Tobias Ullmann, Felix Bachofer
2021 J jnl
The Impact of Phenological Developments on Interferometric and Polarimetric Crop Signatures Derived from Sentinel-1: Examples from the DEMMIN Study Site (Germany).
Remote. Sens.
Johannes Löw, Tobias Ullmann, Christopher Conrad
2020 J jnl
Mapping and Monitoring Small-Scale Mining Activities in Ghana using Sentinel-1 Time Series (2015-2019).
Remote. Sens.
Gerald Forkuor, Tobias Ullmann, Mario Griesbeck
2020 J jnl
Modelling Crop Biomass from Synthetic Remote Sensing Time Series: Example for the DEMMIN Test Site, Germany.
Remote. Sens.
Maninder Singh Dhillon, Thorsten Dahms, Carina Kuebert-Flock, Erik Borg, Christopher Conrad, Tobias Ullmann
2020 J jnl
Surface Roughness Estimation in the Orog Nuur Basin (Southern Mongolia) Using Sentinel-1 SAR Time Series and Ground-Based Photogrammetry.
Remote. Sens.
Tobias Ullmann, Georg Stauch
2019 J jnl
Assessing Spatiotemporal Variations of Landsat Land Surface Temperature and Multispectral Indices in the Arctic Mackenzie Delta Region between 1985 and 2018.
Remote. Sens.
Leon Nill, Tobias Ullmann, Christof Kneisel, Jennifer Sobiech-Wolf, Roland Baumhauer
2019 J jnl
Assessing Spatiotemporal Variations of Sentinel-1 InSAR Coherence at Different Time Scales over the Atacama Desert (Chile) between 2015 and 2018.
Remote. Sens.
Tobias Ullmann, Julia Sauerbrey, Dirk Hoffmeister, Simon Matthias May, Roland Baumhauer, Olaf Bubenzer
2017 J jnl
Contributions of Actual and Simulated Satellite SAR Data for Substrate Type Differentiation and Shoreline Mapping in the Canadian Arctic.
Remote. Sens.
Sarah N. Banks, Koreen Millard, Amir Behnamian, Lori White, Tobias Ullmann, François Charbonneau, Zhaohua Chen, Huili Wang, Jon Pasher, Jason Duffe
2016 J jnl
Two Component Decomposition of Dual Polarimetric HH/VV SAR Data: Case Study for the Tundra Environment of the Mackenzie Delta Region, Canada.
Remote. Sens.
Tobias Ullmann, Andreas Schmitt, Thomas Jagdhuber
2015 — —
Characterization of Arctic Environment by Means of Polarimetric Synthetic Aperture Radar (PolSAR) Data and Digital Elevation Models (DEM) (Charakterisierung der arktischen Landoberfläche mittels polarimetrischer Radardaten (PolSAR) und digitalen Höhenmodellen (DEM))
Tobias Ullmann
2015 J jnl
Remote Sensing of River Delta Inundation: Exploiting the Potential of Coarse Spatial Resolution, Temporally-Dense MODIS Time Series.
Remote. Sens.
Claudia Kuenzer, Igor Klein, Tobias Ullmann, Efi Foufoula-Georgiou, Roland Baumhauer, Stefan W. Dech
2014 J jnl
Integration of Optical and Synthetic Aperture Radar Imagery for Improving Crop Mapping in Northwestern Benin, West Africa.
Remote. Sens.
Gerald Forkuor, Christopher Conrad, Michael Thiel, Tobias Ullmann, Evence Zoungrana
2014 J jnl
Land Cover Characterization and Classification of Arctic Tundra Environments by Means of Polarized Synthetic Aperture X- and C-Band Radar (PolSAR) and Landsat 8 Multispectral Imagery - Richards Island, Canada.
Remote. Sens.
Tobias Ullmann, Andreas Schmitt, Achim Roth, Jason Duffe, Stefan W. Dech, Hans-Wolfgang Hubberten, Roland Baumhauer
2012 C conf
Application of quadpolarimetric TerraSAR-X data for landcover characterization in tropical regions - A case study in South Kalimantan, Indonesia.
IGARSS
Tobias Ullmann, Parivash Lumsdon, Felicitas von Poncet, Thomas Esch, Oliver Lang, Marek Tinz, Steffen Kuntz, Stefan W. Dech
2012 C conf
Multi-frequency analysis of high resolution quad-pol Radarsat-2 and dual-pol TerraSAR-X data for land cover classification in Arctic Coastal Ecosystems, Mackenzie Delta, beaufort sea.
IGARSS
Sarah N. Banks, Tobias Ullmann, Jason Duffe, Achim Roth, Douglas J. King, Anne-Marie Demers, Anna E. Hogg, Andreas Schmitt, Roland Baumhauer, Stefan W. Dech
2011 J jnl
Characterization of Land Cover Types in TerraSAR-X Images by Combined Analysis of Speckle Statistics and Intensity Information.
IEEE Trans. Geosci. Remote. Sens.
Thomas Esch, Andreas Schenk, Tobias Ullmann, Michael Thiel, Achim Roth, Stefan W. Dech
2010 C conf
Land cover classification based on single-polarized VHR SAR images using texture information derived via speckle analysis.
IGARSS
Thomas Esch, Andreas Schenk, Michael Thiel, Tobias Ullmann, Martin Schmidt, Stefan W. Dech