Ralf Ludwig

28 papers B 1C 9Journal 17Unranked 1
YearRankTypeTitle / Venue / Authors
2025 J jnl
Quantification of Soil-Water Erosion Using the RUSLE Method in the Mékrou Watershed (Middle Niger River).
ISPRS Int. J. Geo Inf.
Rachid Abdourahamane Attoubounou, Hamidou Diawara, Ralf Ludwig, Julien Adounkpe
2024 J jnl
Retrieving freeze-thaw states using deep learning with remote sensing data in permafrost landscapes.
Int. J. Appl. Earth Obs. Geoinformation
Yueli Chen, Shile Li, Lingxiao Wang, Magdalena Mittermeier, Monique Bernier, Ralf Ludwig
2023 J jnl
Physics-aware Machine Learning Revolutionizes Scientific Paradigm for Machine Learning and Process-based Hydrology.
CoRR
Qingsong Xu, Yilei Shi, Jonathan L. Bamber, Ye Tuo, Ralf Ludwig, Xiao Xiang Zhu
2022 — conf
Assessing the Performance of a Machine Learning-Based Hybrid Model in Downscaling Precipitation Data.
ICHSA
Nazak Rouzegari, Vahid Nourani, Ralf Ludwig, Patrick Laux
2022 J jnl
Retrieving Freeze/Thaw Cycles Using Sentinel-1 Data in Eastern Nunavik (Québec, Canada).
Remote. Sens.
Yueli Chen, Lingxiao Wang, Monique Bernier, Ralf Ludwig
2021 J jnl
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
Yawei Wang, Pei Leng, Jian Peng, Philip Marzahn, Ralf Ludwig
2019 J jnl
Can We Use Satellite-Based FAPAR to Detect Drought?
Sensors
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
2019 J jnl
Comparison of LiDAR and Digital Aerial Photogrammetry for Characterizing Canopy Openings in the Boreal Forest of Northern Alberta.
Remote. Sens.
Annette Dietmaier, Gregory J. McDermid, Mir Mustafizur Rahman, Julia Linke, Ralf Ludwig
2019 J jnl
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.
Moritz Seidel, Philip Marzahn, Ralf Ludwig
2018 J jnl
An automatic change detection approach for rapid flood mapping in Sentinel-1 SAR data.
Int. J. Appl. Earth Obs. Geoinformation
Yu Li, Sandro Martinis, Simon Plank, Ralf Ludwig
2018 J jnl
Detection of Temporary Flooded Vegetation Using Sentinel-1 Time Series Data.
Remote. Sens.
Viktoriya Tsyganskaya, Sandro Martinis, Philip Marzahn, Ralf Ludwig
2018 J jnl
Surface Soil Moisture Retrieval Using Optical/Thermal Infrared Remote Sensing Data.
IEEE Trans. Geosci. Remote. Sens.
Yawei Wang, Jian Peng, Xiaoning Song, Pei Leng, Ralf Ludwig, Alexander Loew
2018 C conf
Vegetation Effects on Covariations of L-Band Radiometer and C-Band/L-Band Radar Observations.
IGARSS
Moritz Link, Dara Entekhabi, Thomas Jagdhuber, Paolo Ferrazzoli, Leila Guerriero, Martin J. Baur, Ralf Ludwig
2017 J jnl
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.
Lingxiao Wang, Philip Marzahn, Monique Bernier, Andres Jacome, Jimmy Poulin, Ralf Ludwig
2017 C conf
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
Moritz Link, Dara Entekhabi, Thomas Jagdhuber, Paolo Ferrazzoli, Leila Guerriero, Martin J. Baur, Ralf Ludwig
2014 J jnl
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band.
Remote. Sens.
Thomas Jagdhuber, Julia Stockamp, Irena Hajnsek, Ralf Ludwig
2013 J jnl
Validation of the AIEM Through Correlation Length Parameterization at Field Scale Using Radar Imagery in a Semi-Arid Environment.
IEEE Geosci. Remote. Sens. Lett.
Lu Dong, Nicolas N. Baghdadi, Ralf Ludwig
2012 C conf
"Flashing Fields" and the impact of soil surface roughness.
IGARSS
Philip Marzahn, Urs Wegmüller, Francesco Mattia, Ralf Ludwig
2012 J jnl
Decomposing Dual Scale Soil Surface Roughness for Microwave Remote Sensing Applications.
Remote. Sens.
Philip Marzahn, Moritz Seidel, Ralf Ludwig
2012 C conf
Operational surface soil moisture retrieval by c-band SAR imagery in a semi-arid environment.
IGARSS
Lu Dong, Philip Marzahn, Ralf Ludwig
2012 C conf
Sensitivity of C-band polarimetric SAR data to the soil surface parameters over bare agriculture fields.
IGARSS
Nicolas N. Baghdadi, Mehrez Zribi, Ralf Ludwig
2011 B conf
Work in progress: MiceNet: Monitoring behaviour of laboratory mice with sensor networks.
DCOSS
Grigore Stamatescu, Kay Römer, Ralf Ludwig, Saleh M. Ibrahim, Valentin Sgarciu
2008 J jnl
SAPHIRE: intelligent healthcare monitoring based on semantic interoperability platform: pilot applications.
IET Commun.
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
2006 J jnl
Derivation of surface soil moisture from ENVISAT ASAR wide swath and image mode data in agricultural areas.
IEEE Trans. Geosci. Remote. Sens.
Alexander Loew, Ralf Ludwig, Wolfram Mauser
2005 C conf
Derivation of near surface soil moisture patterns from ENVISAT ASAR data.
IGARSS
Alexander Löw, Ralf Ludwig, Wolfram Mauser
2005 C conf
Operational monitoring of the snow cover dynamics in Southern Germany: capabilities of optical and microwave remote sensing for improved flood forecast.
IGARSS
Florian Appel, Heike Bach, Alexander Loew, Ralf Ludwig, Wolfram Mauser, Werner Schulz
2004 C conf
Derivation of hydrological parameters from ENVISAT ASAR wide swath data.
IGARSS
Alexander Löw, Björn Waske, Ralf Ludwig, Wolfram Mauser
2003 C conf
Mesoscale soil moisture estimation from SAR data using subscale landuse information.
IGARSS
Alexander Löw, Ralf Ludwig, Wolfram Mauser