Ralf Ludwig

Publication Activity (10 Years)

Years Active: 2003-2024
Publications (10 Years): 14

Top Topics

Thermal Infrared

Machine Learning

Top Venues

Int. J. Appl. Earth Obs. Geoinformation

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.

Publications

Yueli Chen, Shile Li, Lingxiao Wang, Magdalena Mittermeier, Monique Bernier, Ralf Ludwig
Retrieving freeze-thaw states using deep learning with remote sensing data in permafrost landscapes. Int. J. Appl. Earth Obs. Geoinformation 126 (2024)
Qingsong Xu, Yilei Shi, Jonathan L. Bamber, Ye Tuo, Ralf Ludwig, Xiao Xiang Zhu
Physics-aware Machine Learning Revolutionizes Scientific Paradigm for Machine Learning and Process-based Hydrology. CoRR (2023)
Yueli Chen, Lingxiao Wang, Monique Bernier, Ralf Ludwig
Retrieving Freeze/Thaw Cycles Using Sentinel-1 Data in Eastern Nunavik (Québec, Canada). Remote. Sens. 14 (3) (2022)
Nazak Rouzegari, Vahid Nourani, Ralf Ludwig, Patrick Laux
Assessing the Performance of a Machine Learning-Based Hybrid Model in Downscaling Precipitation Data. ICHSA (2022)
Yawei Wang, Pei Leng, Jian Peng, Philip Marzahn, Ralf Ludwig
Global assessments of two blended microwave soil moisture products CCI and SMOPS with in-situ measurements and reanalysis data. Int. J. Appl. Earth Obs. Geoinformation 94 (2021)
Annette Dietmaier, Gregory J. McDermid, Mir Mustafizur Rahman, Julia Linke, Ralf Ludwig
Comparison of LiDAR and Digital Aerial Photogrammetry for Characterizing Canopy Openings in the Boreal Forest of Northern Alberta. Remote. Sens. 11 (16) (2019)
Jian Peng, Jan-Peter Muller, Simon Blessing, Ralf Giering, Olaf Danne, Nadine Gobron, Saïd Kharbouche, Ralf Ludwig, Ben Müller, Guoyong Leng, Qinglong You, Zheng Duan, Simon J. Dadson
Can We Use Satellite-Based FAPAR to Detect Drought? Sensors 19 (17) (2019)
Moritz Seidel, Philip Marzahn, Ralf Ludwig
Monitoring of a Sea-Dike in Northern Germany by Means of ERS-1, ENVISAT/ASAR, and Sentinel-1 SAR Interferometry. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 12 (11) (2019)
Yu Li, Sandro Martinis, Simon Plank, Ralf Ludwig
An automatic change detection approach for rapid flood mapping in Sentinel-1 SAR data. Int. J. Appl. Earth Obs. Geoinformation 73 (2018)
Viktoriya Tsyganskaya, Sandro Martinis, Philip Marzahn, Ralf Ludwig
Detection of Temporary Flooded Vegetation Using Sentinel-1 Time Series Data. Remote. Sens. 10 (8) (2018)
Moritz Link, Dara Entekhabi, Thomas Jagdhuber, Paolo Ferrazzoli, Leila Guerriero, Martin Baur, Ralf Ludwig
Vegetation Effects on Covariations of L-Band Radiometer and C-Band/L-Band Radar Observations. IGARSS (2018)
Yawei Wang, Jian Peng, Xiaoning Song, Pei Leng, Ralf Ludwig, Alexander Loew
Surface Soil Moisture Retrieval Using Optical/Thermal Infrared Remote Sensing Data. IEEE Trans. Geosci. Remote. Sens. 56 (9) (2018)
Moritz Link, Dara Entekhabi, Thomas Jagdhuber, Paolo Ferrazzoli, Leila Guerriero, Martin Baur, Ralf Ludwig
Simulating L/L-band and C/L-band active-passive microwave covariation of crops with the Tor Vergata scattering and emission model for a SMAP-Sentinel 1 combination. IGARSS (2017)
Lingxiao Wang, Philip Marzahn, Monique Bernier, Andres Jacome, Jimmy Poulin, Ralf Ludwig
Comparison of TerraSAR-X and ALOS PALSAR Differential Interferometry With Multisource DEMs for Monitoring Ground Displacement in a Discontinuous Permafrost Region. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 10 (9) (2017)
Thomas Jagdhuber, Julia Stockamp, Irena Hajnsek, Ralf Ludwig
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band. Remote. Sens. 6 (3) (2014)
Lu Dong, Nicolas N. Baghdadi, Ralf Ludwig
Validation of the AIEM Through Correlation Length Parameterization at Field Scale Using Radar Imagery in a Semi-Arid Environment. IEEE Geosci. Remote. Sens. Lett. 10 (3) (2013)
Nicolas N. Baghdadi, Mehrez Zribi, Ralf Ludwig
Sensitivity of C-band polarimetric SAR data to the soil surface parameters over bare agriculture fields. IGARSS (2012)
Philip Marzahn, Urs Wegmüller, Francesco Mattia, Ralf Ludwig
"Flashing Fields" and the impact of soil surface roughness. IGARSS (2012)
Lu Dong, Philip Marzahn, Ralf Ludwig
Operational surface soil moisture retrieval by c-band SAR imagery in a semi-arid environment. IGARSS (2012)
Philip Marzahn, Moritz Seidel, Ralf Ludwig
Decomposing Dual Scale Soil Surface Roughness for Microwave Remote Sensing Applications. Remote. Sens. 4 (7) (2012)
Grigore Stamatescu, Kay Römer, Ralf Ludwig, Saleh M. Ibrahim, Valentin Sgarciu
Work in progress: MiceNet: Monitoring behaviour of laboratory mice with sensor networks. DCOSS (2011)
Oliver Nee, Andreas Hein, Thorsten Gorath, Nils Hulsmann, Gokce Laleci, Mustafa Yuksel, Mustafa Olduz, Ibrahim Tasyurt, Umut Orhan, Asuman Dogac, Ana Fruntelata, Silvin Ghiorghe, Ralf Ludwig
SAPHIRE: intelligent healthcare monitoring based on semantic interoperability platform: pilot applications. IET Commun. 2 (2) (2008)
Alexander Loew, Ralf Ludwig, Wolfram Mauser
Derivation of surface soil moisture from ENVISAT ASAR wide swath and image mode data in agricultural areas. IEEE Trans. Geosci. Remote. Sens. 44 (4) (2006)
Florian Appel, Heike Bach, Alexander Loew, Ralf Ludwig, Wolfram Mauser, Werner Schulz
Operational monitoring of the snow cover dynamics in Southern Germany: capabilities of optical and microwave remote sensing for improved flood forecast. IGARSS (2005)
Alexander Löw, Ralf Ludwig, Wolfram Mauser
Derivation of near surface soil moisture patterns from ENVISAT ASAR data. IGARSS (2005)
Alexander Löw, Björn Waske, Ralf Ludwig, Wolfram Mauser
Derivation of hydrological parameters from ENVISAT ASAR wide swath data. IGARSS (2004)
Alexander Löw, Ralf Ludwig, Wolfram Mauser
Mesoscale soil moisture estimation from SAR data using subscale landuse information. IGARSS (2003)