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Jeffrey P. Walker
Person information

- affiliation: Monash University, Clayton, Vic, Australia
- affiliation: University of Melbourne, Vic, Australia
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2020 – today
- 2023
- [j82]Thi Mai Nguyen
, Jeffrey P. Walker
, Nan Ye
, Jayantha Kodikara
:
Toward an Improved Surface Roughness Parameterization Model for Soil Moisture Retrieval in Road Construction. IEEE Trans. Geosci. Remote. Sens. 61: 1-13 (2023) - 2022
- [j81]Joan Francesc Muñoz-Martín
, Daniel Pascual
, Raul Onrubia
, Hyuk Park
, Adriano Camps
, Christoph Rüdiger
, Jeffrey P. Walker
, Alessandra Monerris:
Vegetation Canopy Height Retrieval Using L1 and L5 Airborne GNSS-R. IEEE Geosci. Remote. Sens. Lett. 19: 1-5 (2022) - [j80]Thi Mai Nguyen
, Jeffrey P. Walker
, Nan Ye
, Jayantha Kodikara
:
Environmental Effects on Brightness Temperature Observation From an L-Band Radiometer. IEEE Geosci. Remote. Sens. Lett. 19: 1-5 (2022) - [j79]Yuxi Zhang
, Jeffrey P. Walker
, Valentijn R. N. Pauwels
, Yuval Sadeh:
Assimilation of Wheat and Soil States into the APSIM-Wheat Crop Model: A Case Study. Remote. Sens. 14(1): 65 (2022) - [j78]Amir Azemati
, Amer Melebari
, James D. Campbell
, Jeffrey P. Walker
, Mahta Moghaddam
:
GNSS-R Soil Moisture Retrieval for Flat Vegetated Surfaces Using a Physics-Based Bistatic Scattering Model and Hybrid Global/Local Optimization. Remote. Sens. 14(13): 3129 (2022) - [j77]Jinyang Du, John S. Kimball
, Rajat Bindlish, Jeffrey P. Walker
, Jennifer D. Watts:
Local Scale (3-m) Soil Moisture Mapping Using SMAP and Planet SuperDove. Remote. Sens. 14(15): 3812 (2022) - [j76]Julian Chaubell
, Simon Yueh
, Roy Scott Dunbar, Andreas Colliander
, Dara Entekhabi
, Steven Chan, Fan Chen
, Xiaolan Xu
, Rajat Bindlish
, Peggy O'Neill, Jun Asanuma
, Aaron A. Berg
, David D. Bosch
, Todd Caldwell
, Michael H. Cosh, Chandra D. Holifield Collins, Karsten H. Jensen, José Martínez-Fernández
, Mark S. Seyfried, Patrick J. Starks, Zhongbo Su, Marc Thibeault
, Jeffrey P. Walker
:
Regularized Dual-Channel Algorithm for the Retrieval of Soil Moisture and Vegetation Optical Depth From SMAP Measurements. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 15: 102-114 (2022) - [j75]Xiaoling Wu
, Jeffrey P. Walker
, François Jonard
, Nan Ye
:
Inter-Comparison of Proximal Near-Surface Soil Moisture Measurement Techniques. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 15: 2370-2378 (2022) - [j74]Jeffrey D. Ouellette
, Tanish P. Himani
, Li Li
, Elizabeth M. Twarog
, Andreas Colliander
, David C. Goodrich
, Chandra D. Holifield Collins, Michael H. Cosh, Jeffrey P. Walker
:
Application of a Change Detection Soil Moisture Retrieval Algorithm to Combined, Semiconcurrent Radiometer, and Radar Observations. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 15: 9716-9721 (2022) - [c43]Foad Brakhasi, Jeffrey P. Walker, Nan Ye, Xiaoling Wu, Xiaoji Shen, In-Young Yeo, Nithyapriya Boopathi:
Root Zone Soil Moisture Profile Retrieval Using Combined L-Band and P-Band Radiometry. IGARSS 2022: 5610-5613 - 2021
- [j73]Yuval Sadeh
, Xuan Zhu, David Dunkerley, Jeffrey P. Walker, Yuxi Zhang
, Offer Rozenstein, V. S. Manivasagam
, Karine Chenu:
Fusion of Sentinel-2 and PlanetScope time-series data into daily 3 m surface reflectance and wheat LAI monitoring. Int. J. Appl. Earth Obs. Geoinformation 96: 102260 (2021) - [j72]Rahul Raj
, Jeffrey P. Walker, Rohit Pingale
, Rohit Nandan
, Balaji Naik, Jagarlapudi Adinarayana
:
Leaf area index estimation using top-of-canopy airborne RGB images. Int. J. Appl. Earth Obs. Geoinformation 96: 102282 (2021) - [j71]Rahul Raj
, Jeffrey P. Walker, Vishal Vinod
, Rohit Pingale, Balaji Naik, Jagarlapudi Adinarayana:
Leaf water content estimation using top-of-canopy airborne hyperspectral data. Int. J. Appl. Earth Obs. Geoinformation 102: 102393 (2021) - [j70]Rahul Raj
, Jeffrey P. Walker, Rohit Pingale, Balaji Naik Banoth, Jagarlapudi Adinarayana:
Leaf nitrogen content estimation using top-of-canopy airborne hyperspectral data. Int. J. Appl. Earth Obs. Geoinformation 104: 102584 (2021) - [j69]Nan Ye
, Jeffrey P. Walker
, In-Young Yeo
, Thomas J. Jackson
, Yann Kerr
, Edward J. Kim
, Andrew McGrath, Ivan Popstefanija, Mark A. Goodberlet
, James Hills:
Toward P-Band Passive Microwave Sensing of Soil Moisture. IEEE Geosci. Remote. Sens. Lett. 18(3): 504-508 (2021) - [j68]Joan Francesc Muñoz-Martín
, Raul Onrubia
, Daniel Pascual
, Hyuk Park
, Miriam Pablos
, Adriano Camps
, Christoph Rüdiger
, Jeffrey P. Walker
, Alessandra Monerris
:
Single-Pass Soil Moisture Retrieval Using GNSS-R at L1 and L5 Bands: Results from Airborne Experiment. Remote. Sens. 13(4): 797 (2021) - [j67]Oriol Cervelló i Nogues
, Joan Francesc Muñoz-Martín
, Hyuk Park
, Adriano Camps
, Raul Onrubia
, Daniel Pascual
, Christoph Rüdiger
, Jeffrey P. Walker
, Alessandra Monerris
:
Improved GNSS-R Altimetry Methods: Theory and Experimental Demonstration Using Airborne Dual Frequency Data from the Microwave Interferometric Reflectometer (MIR). Remote. Sens. 13(20): 4186 (2021) - [j66]Joel T. Johnson
, Kenneth C. Jezek, Giovanni Macelloni
, Marco Brogioni, Leung Tsang
, Emmanuel P. Dinnat
, Jeffrey P. Walker, Nan Ye
, Sidharth Misra
, Jeffrey R. Piepmeier, Rajat Bindlish
, David M. Le Vine
, Peggy E. O'Neill
, Lars Kaleschke, Mark J. Andrews
, Caglar Yardim
, Mustafa Aksoy
, Michael Durand, Chi-Chih Chen
, Oguz Demir
, Alexandra Bringer, Julie Z. Miller
, Shannon T. Brown
, Ron Kwok, Tong Lee
, Yann Kerr, Dara Entekhabi, Jinzheng Peng
, Andreas Colliander
, Steven Chan, Joseph A. MacGregor
, Brooke Medley, Roger DeRoo
, Mark Drinkwater
:
Microwave Radiometry at Frequencies From 500 to 1400 MHz: An Emerging Technology for Earth Observations. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 14: 4894-4914 (2021) - [j65]Nan Ye
, Jeffrey P. Walker
, Xiaoling Wu
, Richard de Jeu, Ying Gao
, Thomas J. Jackson
, François Jonard
, Edward J. Kim
, Olivier Merlin, Valentijn R. N. Pauwels
, Luigi J. Renzullo, Christoph Rüdiger
, Sabah Sabaghy, Christian von Hebel, Simon H. Yueh
, Liujun Zhu
:
The Soil Moisture Active Passive Experiments: Validation of the SMAP Products in Australia. IEEE Trans. Geosci. Remote. Sens. 59(4): 2922-2939 (2021) - [j64]Xiaoji Shen
, Jeffrey P. Walker
, Nan Ye
, Xiaoling Wu
, Nithyapriya Boopathi, In-Young Yeo
, Linlin Zhang, Liujun Zhu
:
Soil Moisture Retrieval Depth of P- and L-Band Radiometry: Predictions and Observations. IEEE Trans. Geosci. Remote. Sens. 59(8): 6814-6822 (2021) - [c42]Joan Francesc Muñoz-Martín
, Raul Onrubia, Daniel Pascual
, Hyuk Park, Adriano Camps, Christoph Rüdiger, Jeffrey P. Walker, Alessandra Monerris:
Parameter Considerations for the Retrieval of Surface Soil Moisture from Spaceborne GNSS-R. IGARSS 2021: 2009-2012 - 2020
- [j63]Joan Francesc Muñoz-Martín
, Raul Onrubia
, Daniel Pascual
, Hyuk Park
, Adriano Camps
, Christoph Rüdiger
, Jeffrey P. Walker
, Alessandra Monerris
:
Untangling the Incoherent and Coherent Scattering Components in GNSS-R and Novel Applications. Remote. Sens. 12(7): 1208 (2020) - [j62]Joan Francesc Muñoz-Martín
, Raul Onrubia
, Daniel Pascual
, Hyuk Park
, Adriano Camps
, Christoph Rüdiger
, Jeffrey P. Walker
, Alessandra Monerris
:
Experimental Evidence of Swell Signatures in Airborne L5/E5a GNSS-Reflectometry. Remote. Sens. 12(11): 1759 (2020) - [j61]Liujun Zhu
, Jeffrey P. Walker
, Christoph Rüdiger
, Pengfeng Xiao
:
Identification of Agricultural Row Features Using Optical Data for Scattering and Reflectance Modeling Over Periodic Surfaces. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 13: 1729-1739 (2020) - [j60]Mario Julian Chaubell
, Simon H. Yueh
, Roy Scott Dunbar, Andreas Colliander
, Fan Chen
, Steven Tsz K. Chan, Dara Entekhabi
, Rajat Bindlish
, Peggy E. O'Neill
, Jun Asanuma
, Aaron A. Berg
, David D. Bosch
, Todd Caldwell
, Michael H. Cosh, Chandra D. Holifield Collins, José Martínez-Fernández
, Mark S. Seyfried, Patrick J. Starks, Zhongbo Su
, Marc Thibeault
, Jeffrey P. Walker:
Improved SMAP Dual-Channel Algorithm for the Retrieval of Soil Moisture. IEEE Trans. Geosci. Remote. Sens. 58(6): 3894-3905 (2020) - [c41]Joan Francesc Muñoz-Martín
, Raul Onrubia, Daniel Pascual
, Hyuk Park, Adriano Camps, Christoph Rüdiger, Jeffrey P. Walker, Alessandra Monerris:
First Experimental Evidence of Wind and Swell Signatures in L5 GPS and E5A Galileo GNSS-R Waveforms. IGARSS 2020: 3369-3372 - [c40]Nithyapriya Boopathi, Nan Ye, Xiaoling Wu, Jeffrey P. Walker, Xiaoji Shen, Y. S. Rao, Thomas J. Jackson, Yann Kerr, Edward J. Kim, Andrew McGrath, In-Young Yeo:
Preliminary Model for Soil Moisture Retrieval Using P-Band Radiometer Observations. IGARSS 2020: 4446-4449 - [c39]Yuval Sadeh, Xuan Zhu, David Dunkerley, Jeffrey P. Walker, Yuxi Zhang, Offer Rozenstein, V. S. Manivasagam, Karine Chenu:
Sentinel-2 and Planetscope Data Fusion into Daily 3 M Images for Leaf Area Index Monitoring. IGARSS 2020: 5274-5277 - [c38]Joan Francesc Muñoz-Martín
, Raul Onrubia, Daniel Pascual
, Hyuk Park, Adriano Camps, Christoph Rüdiger, Jeffrey P. Walker, Alessandra Monerris:
Untangling the GNSS-R Coherent and Incoherent Components: Experimental Evidences Over the Ocean. IGARSS 2020: 5925-5928
2010 – 2019
- 2019
- [j59]James E. Hilton
, Stefania Grimaldi
, Raymond C. Z. Cohen
, Nikhil Garg, Yuan Li, Steve P. Marvanek, Valentijn R. N. Pauwels, Jeffrey P. Walker
:
River reconstruction using a conformal mapping method. Environ. Model. Softw. 119: 197-213 (2019) - [j58]Raul Onrubia
, Daniel Pascual
, Hyuk Park
, Adriano Camps
, Christoph Rüdiger
, Jeffrey P. Walker
, Alessandra Monerris
:
Satellite Cross-Talk Impact Analysis in Airborne Interferometric Global Navigation Satellite System-Reflectometry with the Microwave Interferometric Reflectometer. Remote. Sens. 11(9): 1120 (2019) - [j57]Nan Ye
, Jeffrey P. Walker
, Christoph Rüdiger
, Dongryeol Ryu, Robert J. Gurney
:
Impact of Urban Cover Fraction on SMOS and SMAP Surface Soil Moisture Retrieval Accuracy. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 12(9): 3338-3350 (2019) - [c37]Sangita Kumari, R. Ramsankaran
, Jeffrey P. Walker:
Impact of Window Size in Remote Sensing Based Glacier Feature Tracking - a Study on Chhota Shigri Glacier, Western Himalayas, India. IGARSS 2019: 4175-4178 - [c36]Andreas Colliander, Heather McNairn, Marc Thibeault, José Martínez-Fernández, Karsten H. Jensen
, Jun Asanuma, Mark S. Seyfried, David D. Bosch, Patrick J. Starks, Chandra D. Holifield Collins, John H. Prueger, Thomas J. Jackson, Zhongbo Su
, Simon H. Yueh, Steven Tsz K. Chan, Peggy O'Neill, Rajat Bindlish, Michael H. Cosh, Todd Caldwell, Jeffrey P. Walker, Aaron A. Berg:
Seasonal Dependence of SMAP Radiometer-Based Soil Moisture Performance as Observed Over Core Validation Sites. IGARSS 2019: 5320-5323 - [c35]Xiaoling Wu, Nan Ye, Jeffrey P. Walker, James Hills, François Jonard, Valentijn R. N. Pauwels:
Multi-Platform Radiometer Systems for Surface Soil Moisture Retrieval. IGARSS 2019: 6994-6997 - 2018
- [j56]Dominik Rains
, Gabrielle J. M. De Lannoy, Hans Lievens
, Jeffrey P. Walker
, Niko E. C. Verhoest
:
SMOS and SMAP Brightness Temperature Assimilation Over the Murrumbidgee Basin. IEEE Geosci. Remote. Sens. Lett. 15(11): 1652-1656 (2018) - [j55]Rajat Bindlish
, Michael H. Cosh
, Thomas J. Jackson
, Toshio Koike, Hideyuki Fujii, Steven Tsz K. Chan, Jun Asanuma
, Aaron Berg
, David D. Bosch
, Todd Caldwell
, Chandra D. Holifield Collins, Heather McNairn, José Martínez-Fernández
, John H. Prueger, Tracy L. Rowlandson
, Mark S. Seyfried, Patrick J. Starks, Marc Thibeault
, Rogier van der Velde, Jeffrey P. Walker
, Evan J. Coopersmith:
GCOM-W AMSR2 Soil Moisture Product Validation Using Core Validation Sites. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 11(1): 209-219 (2018) - [j54]Ying Gao
, Jeffrey P. Walker
, Nan Ye, Rocco Panciera, Alessandra Monerris
, Dongryeol Ryu, Christoph Rüdiger
, Thomas J. Jackson
:
Evaluation of the Tau-Omega Model for Passive Microwave Soil Moisture Retrieval Using SMAPEx Datasets. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 11(3): 888-895 (2018) - [j53]Liujun Zhu
, Jeffrey P. Walker
, Nan Ye
, Christoph Rüdiger
, Jörg M. Hacker, Rocco Panciera, Mihai A. Tanase
, Xiaoling Wu
, Douglas A. Gray, Nick J. S. Stacy, Alvin S. Goh, Heath Yardley, Jim Mead:
The Polarimetric L-Band Imaging Synthetic Aperture Radar (PLIS): Description, Calibration, and Cross-Validation. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 11(11): 4513-4525 (2018) - [j52]Sandy Peischl
, Jeffrey P. Walker
, Dongryeol Ryu, Yann H. Kerr:
Analysis of Data Acquisition Time on Soil Moisture Retrieval From Multiangle L-Band Observations. IEEE Trans. Geosci. Remote. Sens. 56(2): 966-971 (2018) - [j51]Lian He
, Yang Hong
, Xiaoling Wu
, Nan Ye
, Jeffrey P. Walker
, Xiaona Chen
:
Investigation of SMAP Active-Passive Downscaling Algorithms Using Combined Sentinel-1 SAR and SMAP Radiometer Data. IEEE Trans. Geosci. Remote. Sens. 56(8): 4906-4918 (2018) - [c34]Nithyapriya Boopathi
, Nan Ye, Xiaoling Wu, Jeffrey P. Walker
, Y. S. Rao, Thomas J. Jackson, Yann Kerr, Edward J. Kim
, Andrew McGrath, In-Young Yeo
:
Towards Soil Moisture Retrieval Using Tower-Based P-Band Radiometer Observations. IGARSS 2018: 1407-1410 - [c33]Ying Gao, Andreas Colliander, Mariko S. Burgin, Jeffrey P. Walker
, Chun-Sik Chae, Emmanuel P. Dinnat
, Michael H. Cosh, Todd Caldwell, Aaron Berg
, José Martínez-Fernández
:
L-, C- and X-Band Passive Microwave Soil Moisture Retrieval Algorithm Parameterization Using in Situ Validation Sites. IGARSS 2018: 1434-1437 - [c32]Raul Onrubia
, Daniel Pascual
, Jorge Querol, Hyuk Park
, Adriano Camps, Christoph Rüdiger, Jeffrey P. Walker
:
Preliminary End- to-End Results of the MIR Instrument: the Microwave Interferometric Reflectometer. IGARSS 2018: 2027-2030 - [c31]Nan Ye, Xiaoling Wu
, Jeffrey P. Walker
, Nithyapriya Boopathi
, Thomas J. Jackson, Yann Kerr, Edward J. Kim
, Andrew McGrath, In-Young Yeo
, Mahta Moghaddam
:
Towards Multi-Frequency Soil Moisture Retrieval Using P- and L-Band Passive Microwave Sensing Technology. IGARSS 2018: 3707-3710 - [c30]Narendra N. Das, Dara Entekhabi, Seung-Bum Kim, Thomas Jagdhuber, Roy Scott Dunbar, Simon Yueh, Peggy E. O'Neill, Andreas Colliander, Jeffrey P. Walker
, Thomas J. Jackson:
High Resolution Soil Moisture Product Based on Smap Active-Passive Approach Using Copernicus Sentinel 1 Data. IGARSS 2018: 3768-3770 - [c29]Liujun Zhu
, Jeffrey P. Walker
, Leung Tsang, Huanting Huang, Nan Ye, Christoph Rüdiger:
Soil Moisture Retrieval over Agricultural Fields from Time Series Multi-Angular L-Band Radar Data. IGARSS 2018: 6139-6142 - [c28]Francesco Mattia
, Anna Balenzano
, Giuseppe Satalino, Francesco P. Lovergine, Jian Peng
, Urs Wegmüller, Oliver Cartus, Malcolm W. J. Davidson
, Seung-Bum Kim, Joel T. Johnson, Jeffrey P. Walker
, Xiaoling Wu
, Valentijn R. N. Pauwels, Heather McNairn, Thomas Caldwell, Michael H. Cosh, Thomas J. Jackson:
Sentinel-1 & Sentinel-2 for SOIL Moisture Retrieval at Field Scale. IGARSS 2018: 6143-6146 - 2017
- [j50]Xiaoling Wu
, Jeffrey P. Walker
, Christoph Rüdiger
, Rocco Panciera, Ying Gao:
Intercomparison of Alternate Soil Moisture Downscaling Algorithms Using Active-Passive Microwave Observations. IEEE Geosci. Remote. Sens. Lett. 14(2): 179-183 (2017) - [j49]Lian He
, Qiming Qin, Rocco Panciera, Mihai A. Tanase
, Jeffrey P. Walker
, Yang Hong
:
An Extension of the Alpha Approximation Method for Soil Moisture Estimation Using Time-Series SAR Data Over Bare Soil Surfaces. IEEE Geosci. Remote. Sens. Lett. 14(8): 1328-1332 (2017) - [j48]Seung-Bum Kim
, Jakob J. van Zyl, Joel T. Johnson, Mahta Moghaddam
, Leung Tsang, Andreas Colliander
, Roy Scott Dunbar, Thomas J. Jackson, Sermsak Jaruwatanadilok, Richard D. West, Aaron Berg
, Todd Caldwell
, Michael H. Cosh, David C. Goodrich, Stanley Livingston, Ernesto López-Baeza
, Tracy L. Rowlandson, Marc Thibeault, Jeffrey P. Walker
, Dara Entekhabi, Eni G. Njoku, Peggy E. O'Neill
, Simon H. Yueh:
Surface Soil Moisture Retrieval Using the L-Band Synthetic Aperture Radar Onboard the Soil Moisture Active-Passive Satellite and Evaluation at Core Validation Sites. IEEE Trans. Geosci. Remote. Sens. 55(4): 1897-1914 (2017) - [j47]Jeffrey D. Ouellette
, Joel T. Johnson, Anna Balenzano
, Francesco Mattia
, Giuseppe Satalino
, Seung-Bum Kim
, Roy Scott Dunbar, Andreas Colliander
, Michael H. Cosh, Todd G. Caldwell
, Jeffrey P. Walker
, Aaron A. Berg
:
A Time-Series Approach to Estimating Soil Moisture From Vegetated Surfaces Using L-Band Radar Backscatter. IEEE Trans. Geosci. Remote. Sens. 55(6): 3186-3193 (2017) - [j46]Yohei Sawada
, Toshio Koike, Kentaro Aida, Kinya Toride
, Jeffrey P. Walker
:
Fusing Microwave and Optical Satellite Observations to Simultaneously Retrieve Surface Soil Moisture, Vegetation Water Content, and Surface Soil Roughness. IEEE Trans. Geosci. Remote. Sens. 55(11): 6195-6206 (2017) - [j45]Xiaoling Wu
, Jeffrey P. Walker
, Christoph Rüdiger, Rocco Panciera, Ying Gao
:
Medium-Resolution Soil Moisture Retrieval Using the Bayesian Merging Method. IEEE Trans. Geosci. Remote. Sens. 55(11): 6482-6493 (2017) - [c27]Olivier Merlin
, Luis Enrique Olivera-Guerra, Bouchra Ait Hssaine, Abdelhakim Amazirh, Yoann Malbéteau, Vivien Stefan, Beatriz Molero, Zoubair Rafi, Maria José Escorihuela
, Jamal Ezzahar, Saïd Khabba
, Jeffrey P. Walker
, Yann Kerr, Vincent Simonneaux
, Salah Er-Raki
:
Evaporation-based disaggregation of surface soil moisture data: The dispatch method, the CATDS product and on-going research. IGARSS 2017: 2507-2510 - [c26]Xiwu Zhan, Li Fang, Jicheng Liu, Christopher Hain, Jifu Yin, Mitchell Schull, Michael H. Cosh, Jun Wen, Tarendra Lakhankar, Kun Yang, Jeffrey P. Walker
:
Fusing microwave and optical satellite observations for high resolution soil moisture data products. IGARSS 2017: 2519-2522 - [c25]Sabah Sabaghy
, Jeffrey P. Walker
, Luigi J. Renzullo, Ruzbeh Akbar, Steven Tsz K. Chan, Julian Chaubell, Narendra N. Das, Roy Scott Dunbar, Dara Entekhabi, Anouk Gevaert, Thomas J. Jackson, Olivier Merlin
, Mahta Moghaddam
, Jinzheng Peng, Jeffrey Piepmeier, Maria Piles
, Gerard Portal, Christoph Rüdiger, Vivien Stefan, Xiaoling Wu
, Nan Ye, Simon Yueh:
Comparison of downscaling techniques for high resolution soil moisture mapping. IGARSS 2017: 2523-2526 - [c24]Steven Tsz K. Chan, Rajat Bindlish
, Peggy O'Neill, Thomas J. Jackson, Julian Chaubell, Jeffrey Piepmeier, Roy Scott Dunbar, Andreas Colliander, Fan Chen, Dara Entekhabi, Simon Yueh, Michael H. Cosh, Todd Caldwell, Jeffrey P. Walker
, Xiaoling Wu
, Aaron A. Berg
, Tracy L. Rowlandson, Anna Pacheco, Heather McNairn, Marc Thibeault, José Martínez-Fernández
, Angel Gonzalez-Zamora
, Ernesto López-Baeza, Frederik Uldall
, Mark S. Seyfried, David D. Bosch, Patrick J. Starks, Chandra D. Holifield Collins, John H. Prueger, Zhongbo Su
, Rogier van der Velde, Jun Asanuma
, Michael A. Palecki, Eric E. Small, Marek Zreda, Jean-Christophe Calvet, Wade T. Crow, Yann Kerr:
Development and validation of the SMAP enhanced passive soil moisture product. IGARSS 2017: 2539-2542 - [c23]Antara Dasgupta
, Stefania Grimaldi
, R. Ramsankaran
, Jeffrey P. Walker
:
Optimized glcm-based texture features for improved SAR-based flood mapping. IGARSS 2017: 3258-3261 - [c22]Peggy O'Neill, Steven Tsz K. Chan, Rajat Bindlish
, Thomas J. Jackson, Andreas Colliander, Roy Scott Dunbar, Fan Chen, Jeffrey Piepmeier, Simon Yueh, Dara Entekhabi, Michael H. Cosh, Todd Caldwell, Jeffrey P. Walker
, Xiaoling Wu
, Aaron A. Berg
, Tracy L. Rowlandson, Anna Pacheco, Heather McNairn, Marc Thibeault, José Martínez-Fernández
, A. Gonzalez-Zamora
, Ernesto López-Baeza, Frederik Uldall
, Mark S. Seyfried, David D. Bosch, Patrick J. Starks, Chandra D. Holifield Collins, John H. Prueger, Zhongbo Su, Rogier van der Velde, Jun Asanuma
, Michael A. Palecki, Eric E. Small, Marek Zreda, Jean-Christophe Calvet, Wade T. Crow, Yann Kerr:
Assessment of version 4 of the SMAP passive soil moisture standard product. IGARSS 2017: 3941-3944 - [c21]Ying Gao, Andreas Colliander, Mariko S. Burgin, Jeffrey P. Walker
, Chun-Sik Chae, Emmanuel P. Dinnat
, Michael H. Cosh:
Multi-frequency radiometer-based soil moisture retrieval algorithm parametrization using in situ validation sites. IGARSS 2017: 3945-3948 - [c20]Francesco Mattia
, Anna Balenzano
, Giuseppe Satalino, Francesco P. Lovergine, Alexander Loew, Jian Peng
, Urs Wegmüller, Maurizio Santoro, Oliver Cartus, Katarzyna Dabrowska-Zielinska
, Jan Pawel Musial
, Malcolm W. J. Davidson
, Simon Yueh, Seung-Bum Kim, Narendra N. Das, Andreas Colliander, Joel T. Johnson, Jeffrey Ouellette, Jeffrey P. Walker
, Xiaoling Wu
, Heather McNairn, Amine Merzouki, Jarrett Powers, Todd Caldwell
, Dara Entekhabi, Michael H. Cosh, Thomas J. Jackson:
Sentinel-1 high resolution soil moisture. IGARSS 2017: 5533-5536 - [c19]Rajat Bindlish
, Thomas J. Jackson, Michael H. Cosh, Toshio Koike, X. Fuiji, Richard de Jeu, Steven Tsz K. Chan, Jun Asanuma
, Aaron A. Berg
, David D. Bosch, Todd Caldwell, C. Holyfield Collins, Heather McNairn, José Martínez-Fernández
, John H. Prueger, Mark S. Seyfried, Patrick J. Starks, Zhongbo Su, Marc Thibeault, Jeffrey P. Walker
:
AMSR2 soil moisture product validation. IGARSS 2017: 5637-5640 - 2016
- [j44]Yuan Li
, Stefania Grimaldi
, Jeffrey P. Walker
, Valentijn R. N. Pauwels
:
Application of Remote Sensing Data to Constrain Operational Rainfall-Driven Flood Forecasting: A Review. Remote. Sens. 8(6): 456 (2016) - [j43]Yanghui Kang
, Mutlu Özdogan, Samuel C. Zipper
, Miguel O. Roman, Jeffrey P. Walker
, Suk Young Hong, Michael T. Marshall
, Vincenzo Magliulo, José F. Moreno, Luis Alonso
, Akira Miyata, Bruce Kimball, Steven P. Loheide II
:
How Universal Is the Relationship between Remotely Sensed Vegetation Indices and Crop Leaf Area Index? A Global Assessment. Remote. Sens. 8(7): 597 (2016) - [j42]Alberto Alonso Arroyo
, Adriano Camps, Alessandra Monerris
, Christoph Rüdiger
, Jeffrey P. Walker
, Raul Onrubia
, Jorge Querol
, Hyuk Park
, Daniel Pascual
:
On the Correlation Between GNSS-R Reflectivity and L-Band Microwave Radiometry. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 9(12): 5862-5879 (2016) - [j41]Yuancheng Huang, Jeffrey P. Walker
, Ying Gao, Xiaoling Wu
, Alessandra Monerris
:
Estimation of Vegetation Water Content From the Radar Vegetation Index at L-Band. IEEE Trans. Geosci. Remote. Sens. 54(2): 981-989 (2016) - [j40]Lian He
, Rocco Panciera, Mihai A. Tanase
, Jeffrey P. Walker
, Qiming Qin:
Soil Moisture Retrieval in Agricultural Fields Using Adaptive Model-Based Polarimetric Decomposition of SAR Data. IEEE Trans. Geosci. Remote. Sens. 54(8): 4445-4460 (2016) - [j39]Steven Tsz K. Chan
, Rajat Bindlish
, Peggy E. O'Neill
, Eni G. Njoku, Thomas J. Jackson, Andreas Colliander, Fan Chen, Mariko Burgin, Roy Scott Dunbar, Jeffrey Piepmeier, Simon Yueh, Dara Entekhabi, Michael H. Cosh, Todd Caldwell
, Jeffrey P. Walker
, Xiaoling Wu
, Aaron A. Berg
, Tracy L. Rowlandson, Anna Pacheco, Heather McNairn, Marc Thibeault, José Martínez-Fernández
, Angel Gonzalez-Zamora
, Mark S. Seyfried, David D. Bosch, Patrick J. Starks, David C. Goodrich, John H. Prueger, Michael A. Palecki, Eric E. Small, Marek Zreda, Jean-Christophe Calvet, Wade T. Crow
, Yann Kerr:
Assessment of the SMAP Passive Soil Moisture Product. IEEE Trans. Geosci. Remote. Sens. 54(8): 4994-5007 (2016) - [j38]Karolina D. Fieber
, Ian J. Davenport
, James M. Ferryman, Robert J. Gurney, Victor M. Becerra
, Jeffrey P. Walker
, Jörg M. Hacker:
CHP Toolkit: Case Study of LAIe Sensitivity to Discontinuity of Canopy Cover in Fruit Plantations. IEEE Trans. Geosci. Remote. Sens. 54(9): 5071-5080 (2016) - [c18]Peggy E. O'Neill
, Steven Tsz K. Chan, Andreas Colliander, Roy Scott Dunbar, Eni G. Njoku, Rajat Bindlish
, Fan Chen, Thomas J. Jackson, Mariko Burgin, Jeffrey Piepmeier, Simon Yueh, Dara Entekhabi, Michael H. Cosh, Todd Caldwell, Jeffrey P. Walker
, Xiaoling Wu
, Aaron A. Berg
, Tracy L. Rowlandson, Anna Pacheco, Heather McNairn, Marc Thibeault, José Martínez-Fernández
, Angel Gonzalez-Zamora
, Mark S. Seyfried, David D. Bosch, Patrick J. Starks, David C. Goodrich, John H. Prueger, Michael A. Palecki, Eric E. Small, Marek Zreda, Jean-Christophe Calvet, Wade T. Crow
, Yann Kerr:
Evaluation of the validated Soil Moisture product from the SMAP radiometer. IGARSS 2016: 125-128 - [c17]Seung-Bum Kim, Jakob J. van Zyl, Joel T. Johnson, Mahta Moghaddam
, Leung Tsang, Andreas Colliander, Roy Scott Dunbar, Thomas J. Jackson, Sermsak Jaruwatanadilok, Richard D. West, Aaron A. Berg
, Todd Caldwell, Michael H. Cosh, Ernesto López-Baeza
, Marc Thibeault, Jeffrey P. Walker
, Dara Entekhabi, Simon Yueh:
Surface soil moisture retrieval using L-band SMAP SAR data and its validation. IGARSS 2016: 143-146 - [c16]Rajat Bindlish
, Thomas J. Jackson, Michael H. Cosh, Sushil Milak
, Eni G. Njoku, Steven Tsz K. Chan, Mariko Burgin, Todd Caldwell, Aaron A. Berg
, Heather McNairn, Jeffrey P. Walker
, Y. Zeng, Zhongbo Su
, Marc Thibeault, J. Martinez:
Development and validation of the GCOM-W AMSR2 soil moisture product. IGARSS 2016: 1647-1650 - [c15]Thomas J. Jackson, Jean-Pierre Wigneron, Yann Kerr, Michael H. Cosh, Andreas Colliander, Jeffrey P. Walker
, Rajat Bindlish
:
Satellite-based soil moisture validation and field experiments; skylab to smap. IGARSS 2016: 3462-3465 - [c14]Nan Ye, Jeffrey P. Walker
, Xiaoling Wu
, Thomas J. Jackson, Luigi J. Renzullo, Olivier Merlin
, Christoph Rüdiger
, Dara Entekhabi, Richard de Jeu, Edward J. Kim
:
Towards validation of SMAP: SMAPEX-4 & -5. IGARSS 2016: 3469-3472 - 2015
- [j37]Xiaoling Wu
, Jeffrey P. Walker
, Christoph Rüdiger
, Rocco Panciera:
Effect of Land-Cover Type on the SMAP Active/Passive Soil Moisture Downscaling Algorithm Performance. IEEE Geosci. Remote. Sens. Lett. 12(4): 846-850 (2015) - [j36]Pardhasaradhi Teluguntla
, Dongryeol Ryu, Biju George, Jeffrey P. Walker
, Hector M. Malano:
Mapping Flooded Rice Paddies Using Time Series of MODIS Imagery in the Krishna River Basin, India. Remote. Sens. 7(7): 8858-8882 (2015) - [j35]Ying Gao, Jeffrey P. Walker
, Mahdi Allahmoradi, Alessandra Monerris
, Dongryeol Ryu
, Thomas J. Jackson:
Optical Sensing of Vegetation Water Content: A Synthesis Study. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 8(4): 1456-1464 (2015) - [j34]Xiaoling Wu
, Jeffrey P. Walker
, Christoph Rüdiger
, Rocco Panciera, Douglas A. Gray:
Simulation of the SMAP Data Stream From SMAPEx Field Campaigns in Australia. IEEE Trans. Geosci. Remote. Sens. 53(4): 1921-1934 (2015) - [j33]Niko E. C. Verhoest, Martinus Johannes van den Berg, Brecht Martens
, Hans Lievens
, Eric F. Wood
, Ming Pan
, Yann H. Kerr, Ahmad Al Bitar
, Sat Kumar Tomer, Matthias Drusch, Hilde Vernieuwe
, Bernard De Baets
, Jeffrey P. Walker
, Gift Dumedah
, Valentijn R. N. Pauwels
:
Copula-Based Downscaling of Coarse-Scale Soil Moisture Observations With Implicit Bias Correction. IEEE Trans. Geosci. Remote. Sens. 53(6): 3507-3521 (2015) - [j32]Nan Ye, Jeffrey P. Walker
, Christoph Rüdiger
:
A Cumulative Distribution Function Method for Normalizing Variable-Angle Microwave Observations. IEEE Trans. Geosci. Remote. Sens. 53(7): 3906-3916 (2015) - 2014
- [j31]Mihai A. Tanase
, Rocco Panciera, Kim Lowell, Cristina Aponte
, Jörg M. Hacker, Jeffrey P. Walker
:
Forest Biomass Estimation at High Spatial Resolution: Radar Versus Lidar Sensors. IEEE Geosci. Remote. Sens. Lett. 11(3): 711-715 (2014) - [j30]Karolina D. Fieber, Ian J. Davenport
, Mihai A. Tanase
, James M. Ferryman, Robert J. Gurney, Jeffrey P. Walker
, Jörg M. Hacker:
Effective LAI and CHP of a Single Tree From Small-Footprint Full-Waveform LiDAR. IEEE Geosci. Remote. Sens. Lett. 11(9): 1634-1638 (2014) - [j29]Alberto Alonso Arroyo
, Adriano Camps, Albert Aguasca
, Giuseppe Forte, Alessandra Monerris
, Christoph Rüdiger
, Jeffrey P. Walker
, Hyuk Park
, Daniel Pascual
, Raul Onrubia
:
Improving the Accuracy of Soil Moisture Retrievals Using the Phase Difference of the Dual-Polarization GNSS-R Interference Patterns. IEEE Geosci. Remote. Sens. Lett. 11(12): 2090-2094 (2014) - [j28]Christoph Rüdiger
, Marcela Doubková, Joshua R. Larsen
, Wolfgang Wagner
, Jeffrey P. Walker
:
Similarities Between Spaceborne Active and Airborne Passive Microwave Observations at 1 km Resolution. IEEE Geosci. Remote. Sens. Lett. 11(12): 2178-2182 (2014) - [j27]Alberto Alonso Arroyo
, Adriano Camps, Albert Aguasca
, Giuseppe F. Forte, Alessandra Monerris
, Christoph Rüdiger
, Jeffrey P. Walker
, Hyuk Park
, Daniel Pascual
, Raul Onrubia
:
Dual-Polarization GNSS-R Interference Pattern Technique for Soil Moisture Mapping. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 7(5): 1533-1544 (2014) - [j26]Clive S. Fraser, Jeffrey P. Walker
, Mark L. Williams:
Foreword to the Special Issue on the 2013 IEEE International Geoscience and Remote Sensing Symposium. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 7(9): 3683-3684 (2014) - [j25]Rocco Panciera, Jeffrey P. Walker
, Thomas J. Jackson, Douglas A. Gray, Mihai A. Tanase
, Dongryeol Ryu
, Alessandra Monerris
, Heath Yardley, Christoph Rüdiger
, Xiaoling Wu
, Ying Gao, Jörg M. Hacker:
The Soil Moisture Active Passive Experiments (SMAPEx): Toward Soil Moisture Retrieval From the SMAP Mission. IEEE Trans. Geosci. Remote. Sens. 52(1): 490-507 (2014) - [j24]Christoph Rüdiger
, Jeffrey P. Walker
, Yann H. Kerr, Edward J. Kim
, Jörg M. Hacker, Robert J. Gurney, Damian J. Barrett, John Le Marshall:
Toward Vicarious Calibration of Microwave Remote-Sensing Satellites in Arid Environments. IEEE Trans. Geosci. Remote. Sens. 52(3): 1749-1760 (2014) - [j23]Gift Dumedah
, Jeffrey P. Walker
,