Two-dimensional synthetic aperture radiometry over land surface during soil moisture experiment in 2003 (SMEX03). - Dongryeol Ryu; Thomas J. Jackson; Rajat Bindlish; David M. Le Vine; Michael Haken (IGARSS, 2007)

Soil Moisture Retrieval Using an L-Band Synthetic Aperture Radiometer During the Soil Moisture Experiments 2003 (SMEX03) and 2004 (SMEX04). - Dongryeol Ryu; Thomas J. Jackson; Rajat Bindlish; David M. Le Vine; Michael Haken (IGARSS (2), 2008)

Soil Moisture Retrieval Using a Two-Dimensional L-Band Synthetic Aperture Radiometer in a Semiarid Environment. - Dongryeol Ryu; Thomas J. Jackson; Rajat Bindlish; David M. Le Vine; Michael Haken (IEEE Trans. Geosci. Remote. Sens., 2010)

An airborne simulation of the SMAP data stream. - Jeffrey P. Walker; Peggy O'Neill; Xiaoling Wu 001; Ying Gao 002; Alessandra Monerris; Rocco Panciera; Thomas J. Jackson; Douglas A. Gray 001; Dongryeol Ryu (IGARSS, 2012)

Soil Salinity Impacts on L-Band Remote Sensing of Soil Moisture. - Kaighin Alexander McColl; Dongryeol Ryu; Vjekoslav Matic; Jeffrey P. Walker; Justin Costelloe; Christoph Rüdiger (IEEE Geosci. Remote. Sens. Lett., 2012)

Wheat Canopy Structure and Surface Roughness Effects on Multiangle Observations at L-Band. - Sandy Peischl; Jeffrey P. Walker; Dongryeol Ryu; Yann H. Kerr; Rocco Panciera; Christoph Rüdiger (IEEE Trans. Geosci. Remote. Sens., 2012)

The Soil Moisture Active Passive Experiments (SMAPEx): Toward Soil Moisture Retrieval From the SMAP Mission. - Rocco Panciera; Jeffrey P. Walker; Thomas J. Jackson; Douglas A. Gray 001; Mihai A. Tanase; Dongryeol Ryu; Alessandra Monerris; Heath Yardley; Christoph Rüdiger; Xiaoling Wu 001; Ying Gao 002; Jörg M. Hacker (IEEE Trans. Geosci. Remote. Sens., 2014)

Clarifications on the "Comparison Between SMOS, VUA, ASCAT, and ECMWF Soil Moisture Products Over Four Watersheds in U.S.". - Wolfgang Wagner 001; Luca Brocca; Vahid Naeimi; Rolf Reichle; Clara Draper; Richard de Jeu; Dongryeol Ryu; Chun-Hsu Su; Andrew Western; Jean-Christophe Calvet; Yann H. Kerr; Delphine J. Leroux; et al. (IEEE Trans. Geosci. Remote. Sens., 2014)

Mapping Flooded Rice Paddies Using Time Series of MODIS Imagery in the Krishna River Basin, India. - Pardhasaradhi Teluguntla; Dongryeol Ryu; Biju George; Jeffrey P. Walker; Hector M. Malano (Remote. Sens., 2015)

Optical Sensing of Vegetation Water Content: A Synthesis Study. - Ying Gao 002; Jeffrey P. Walker; Mahdi Allahmoradi; Alessandra Monerris; Dongryeol Ryu; Thomas J. Jackson (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2015)

Disaggregation of Low-Resolution L-Band Radiometry Using C-Band Radar Data. - Christoph Rüdiger; Chun-Hsu Su; Dongryeol Ryu; Wolfgang Wagner 001 (IEEE Geosci. Remote. Sens. Lett., 2016)

Adaptive Estimation of Crop Water Stress in Nectarine and Peach Orchards Using High-Resolution Imagery from an Unmanned Aerial Vehicle (UAV). - Suyoung Park; Dongryeol Ryu; Sigfredo Fuentes; Hoam Chung; Esther Hernández-Montes; Mark O'Connell (Remote. Sens., 2017)

Automatic Coregistration Algorithm to Remove Canopy Shaded Pixels in UAV-Borne Thermal Images to Improve the Estimation of Crop Water Stress Index of a Drip-Irrigated Cabernet Sauvignon Vineyard. - Tomas Poblete; Samuel Ortega-Farías; Dongryeol Ryu (Sensors, 2018)

Evaluation of the Tau-Omega Model for Passive Microwave Soil Moisture Retrieval Using SMAPEx Datasets. - Ying Gao 002; Jeffrey P. Walker; Nan Ye; Rocco Panciera; Alessandra Monerris; Dongryeol Ryu; Christoph Rüdiger; Thomas J. Jackson (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018)

Analysis of Data Acquisition Time on Soil Moisture Retrieval From Multiangle L-Band Observations. - Sandy Peischl; Jeffrey P. Walker; Dongryeol Ryu; Yann H. Kerr (IEEE Trans. Geosci. Remote. Sens., 2018)

An evaluation of ECMWF SEAS5 seasonal climate forecasts for Australia using a new forecast calibration algorithm. - Quan J. Wang; Yawen Shao; Yong Song; Andrew Schepen; David E. Robertson; Dongryeol Ryu; Florian Pappenberger (Environ. Model. Softw., 2019)

Visible and Near-Infrared Reflectance Spectroscopy Analysis of a Coastal Soil Chronosequence. - Guanghui Zheng; Dongryeol Ryu; Caixia Jiao; Xianli Xie; Xuefeng Cui; Gang Shang (Remote. Sens., 2019)

A Laboratory Study on Non-Invasive Soil Water Content Estimation Using Capacitive Based Sensors. - Amir Orangi; Guillermo A. Narsilio; Dongryeol Ryu (Sensors, 2019)

Impact of Urban Cover Fraction on SMOS and SMAP Surface Soil Moisture Retrieval Accuracy. - Nan Ye; Jeffrey P. Walker; Christoph Rüdiger; Dongryeol Ryu; Robert J. Gurney (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019)

Status of the Kompsat-5 SAR Mission, Utilization and Future Plans. - Sun-Gu Lee; Seung-Jae Lee 001; Heeseob Kim; Tea-Byeong Chea; Dongryeol Ryu (IGARSS, 2020)

Multi-Temporal Assessment of X-Band SAR Soil Moisture Retrievals Across Growth Stages of a Dryland Wheat Field. - Dongryeol Ryu; Liangliang Tao; Andrew W. Western; Sun-Gu Lee (IGARSS, 2020)

Intercomparison of X- and C-Bands Active Microwave Soil Moisture Retrievals Over Dryland Wheat Fields. - Liangliang Tao; Dongryeol Ryu; Andrew Western; Sun-Gu Lee (IGARSS, 2020)

Assessing the Contribution of Airborne-Retrieved Chlorophyll Fluorescence for Nitrogen Assessment in Almond Orchards. - Yue Wang; Lola Suárez; Xiaojin Qian; Tomas Poblete; Victoria González-Dugo; Dongryeol Ryu; Pablo J. Zareo-Tejada (IGARSS, 2021)

Which multispectral indices robustly measure canopy nitrogen across seasons: Lessons from an irrigated pasture crop. - Manish Kumar Patel; Dongryeol Ryu; Andrew W. Western; Helen Suter; Iain M. Young (Comput. Electron. Agric., 2021)

Mapping Very-High-Resolution Evapotranspiration from Unmanned Aerial Vehicle (UAV) Imagery. - Suyoung Park; Dongryeol Ryu; Sigfredo Fuentes; Hoam Chung; Mark O'Connell; Junchul Kim (ISPRS Int. J. Geo Inf., 2021)

Modeling Vegetation Water Stress over the Forest from Space: Temperature Vegetation Water Stress Index (TVWSI). - Rakesh Chandra Joshi; Dongryeol Ryu; Gary J. Sheridan; Patrick N. J. Lane (Remote. Sens., 2021)

Dependence of CWSI-Based Plant Water Stress Estimation with Diurnal Acquisition Times in a Nectarine Orchard. - Suyoung Park; Dongryeol Ryu; Sigfredo Fuentes; Hoam Chung; Mark O'Connell; Junchul Kim (Remote. Sens., 2021)

A New Drought Index for Soil Moisture Monitoring Based on MPDI-NDVI Trapezoid Space Using MODIS Data. - Liangliang Tao; Dongryeol Ryu; Andrew Western; Dale Boyd (Remote. Sens., 2021)

Using Remote Sensing Techniques to Improve Hydrological Predictions in a Rapidly Changing World. - Yongqiang Zhang 004; Dongryeol Ryu; Donghai Zheng (Remote. Sens., 2021)

Leaf Nitrogen Assessment with ISS DESIS Imaging Spectrometer as Compared to High-Resolution Airborne Hyperspectral Imagery. - Yue Wang; Lola Suárez; Victoria González-Dugo; Dongryeol Ryu; Peter Moar; Pablo J. Zarco-Tejada (IGARSS, 2022)

Enhancing the Accuracy and Temporal Transferability of Irrigated Cropping Field Classification Using Optical Remote Sensing Imagery. - Zitian Gao; Danlu Guo; Dongryeol Ryu; Andrew W. Western (Remote. Sens., 2022)

Parsimonious Gap-Filling Models for Sub-Daily Actual Evapotranspiration Observations from Eddy-Covariance Systems. - Danlu Guo; Arash Parehkar; Dongryeol Ryu; Quan J. Wang; Andrew W. Western (Remote. Sens., 2022)

Comparison of KOMPSAT-5 and Sentinel-1 Radar Data for Soil Moisture Estimations Using a New Semi-Empirical Model. - Liangliang Tao; Dongryeol Ryu; Andrew Western; Sun-Gu Lee (Remote. Sens., 2022)

Automated Delineation of the Agricultural Fields using Multi-Task Deep Learning and Optical Satellite Imagery. - Sumesh KC; Jagannath Aryal; Dongryeol Ryu (IGARSS, 2023)

Mapping Vegetation Water Content over Agricultural Landscapes Using Satellite C- and X-Band Synthetic Aperture Radar. - Dongryeol Ryu; Sun-Gu Lee (IGARSS, 2023)

Synergistic Use of Sentinel-1 and Sentinel-2 Images for in-Season Crop Type Classification Using Google Earth Engine and Machine Learning. - Sneha Sharma; Dongryeol Ryu; Sumesh KC; Sun-Gu Lee; Seungtaek Jeong (IGARSS, 2023)

Standalone SAR Soil Moisture Retrieval Using Radar Vegetation Indices. - Shilpa Koyyan; D. Nagesh Kumar; Dongryeol Ryu (IGARSS, 2023)

Evaluating the Contribution of Cx to Leaf Nitrogen Quantification using Fluspect and Airborne Imaging Spectroscopy in Almond Orchards. - Yue Wang; Lola Suárez; Dongryeol Ryu; Pablo J. Zarco-Tejada (IGARSS, 2023)

Simulating the Backscattering of L-Band Synthetic Aperture Radar from a Wheat Field using Smapvex12 Data. - Lilangi Wijesinghe; Dongryeol Ryu; Andrew Western; Jagannath Aryal; Yuan Zhang (IGARSS, 2023)

Longwave infrared multispectral image sensor system using aluminum-germanium plasmonic filter arrays. - Noor E. Karishma Shaik; Bryce Widdicombe; Dechuan Sun; Sam E. John; Dongryeol Ryu; Ampalavanapillai Nirmalathas; Ranjith R. Unnithan (CoRR, 2023)

Normalized Temperature Drought Index (NTDI) for Soil Moisture Monitoring Using MODIS and Landsat-8 Data. - Liangliang Tao; Yangliu Di; Yuqi Wang; Dongryeol Ryu (Remote. Sens., 2023)

Training sample selection for robust multi-year within-season crop classification using machine learning. - Zitian Gao; Danlu Guo; Dongryeol Ryu; Andrew W. Western (Comput. Electron. Agric., 2023)

Uncertainty Analysis of Water Cloud Model Calibration for Soil Moisture Retrieval from SAR Data. - Shilpa Koyyan; Dongryeol Ryu; Andrew W. Western; D. Nagesh Kumar (IGARSS, 2024)

Improving the accuracy of remotely sensed TSS and turbidity using quality enhanced water reflectance by a statistical resampling technique. - Kunwar Abhishek Singh; Dongryeol Ryu; Meenakshi Arora; Manoj Kumar Tiwari; Bhabagrahi Sahoo (Int. J. Appl. Earth Obs. Geoinformation, 2025)

A novel architecture for automated delineation of the agricultural fields using partial training data in remote sensing images. - Sumesh KC; Jagannath Aryal; Dongryeol Ryu (Comput. Electron. Agric., 2025)