Roy Scott Dunbar

39 papers C 18Journal 21
YearRankTypeTitle / Venue / Authors
2023 J jnl
Assessment of Surface Fractional Water Impacts on SMAP Soil Moisture Retrieval.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Jinyang Du, John S. Kimball, Steven Tsz K. Chan, Mario Julian Chaubell, Rajat Bindlish, Roy Scott Dunbar, Andreas Colliander
2022 J jnl
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.
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
2022 J jnl
Validation of Soil Moisture Data Products From the NASA SMAP Mission.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Andreas Colliander, Rolf H. Reichle, Wade T. Crow, Michael H. Cosh, Fan Chen, Steven Chan, Narendra Narayan Das, Rajat Bindlish, Julian Chaubell, Seung-Bum Kim, Qing Liu, Peggy E. O'Neill, Roy Scott Dunbar, Land B. Dang, John S. Kimball, Thomas J. Jackson, Hala Khalid AlJassar, Jun Asanuma, Bimal K. Bhattacharya, Aaron A. Berg, David D. Bosch, Laura L. Bourgeau-Chavez, Todd Caldwell, Jean-Christophe Calvet, Chandra D. Holifield Collins, Karsten H. Jensen, Stanley Livingston, Ernesto López-Baeza, José Martínez-Fernández, Heather McNairn, Mahta Moghaddam, Carsten Montzka, Claudia Notarnicola, Thierry Pellarin, Isabella Greimeister-Pfeil, Jouni Pulliainen, Judith Gpe. Ramos, Mark S. Seyfried, Patrick J. Starks, Zhongbo Su, Rogier van der Velde, Yijian Zeng, Marc Thibeault, Mariette Vreugdenhil, Jeffrey P. Walker, Mehrez Zribi, Dara Entekhabi, Simon H. Yueh
2021 C conf
Active-Passive Surface Soil Moisture Retrievals with L-Band and C-Band Active and L-Band Passive Measurements.
IGARSS
Narendra N. Das, Dara Entekhabi, Seyedmohammad Mousavi, Simon Yueh, Roy Scott Dunbar, Andreas Colliander
2021 C conf
Implementation and Analysis of the Dual-Channel Algorithm for the Retrieval of Soil Moisture and Vegetation Optical Depth for SMAP.
IGARSS
Julian Chaubell, Simon Yueh, Steven Chan, Roy Scott Dunbar, Andreas Colliander, Dara Entekhabi, Fan Chen, Rajat Bindlish, Peggy O'Neill
2021 C conf
Monitoring ECO-Hydrological Spring Onset Over Alaska and Northern Canada with Complementary Satellite Remote Sensing Data.
IGARSS
Youngwook Kim, John S. Kimball, Nicholas C. Parazoo, Xiaolan Xu, Roy Scott Dunbar, Andreas Colliander, Rolf Reichle
2021 J jnl
Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Revisit: Approach and Performance.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Jinzheng Peng, Sidharth Misra, Jeffrey R. Piepmeier, Simon H. Yueh, David M. Le Vine, Emmanuel P. Dinnat, Roy Scott Dunbar, Priscilla N. Mohammed, Steven Tsz K. Chan, Thomas Meissner
2020 J jnl
Improved SMAP Dual-Channel Algorithm for the Retrieval of Soil Moisture.
IEEE Trans. Geosci. Remote. Sens.
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
2019 J jnl
Global Assessment of the SMAP Freeze/Thaw Data Record and Regional Applications for Detecting Spring Onset and Frost Events.
Remote. Sens.
Youngwook Kim, John S. Kimball, Xiaolan Xu, Roy Scott Dunbar, Andreas Colliander, Chris Derksen
2019 J jnl
Improving Brightness Temperature Measurements Near Coastal Areas for SMAP.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Julian Chaubell, Peggy E. O'Neill, Simon H. Yueh, Jinzheng Peng, Roy Scott Dunbar, Steven Tsz K. Chan, Fan Chen, Jeffrey R. Piepmeier, Rajat Bindlish, Dara Entekhabi
2019 C conf
Smap Regularized Dual-Channel Algorithm for the Retrieval of Soil Moisture and Vegetation Optical Depth.
IGARSS
Julian Chaubell, Simon Yueh, Steven Tsz K. Chan, Roy Scott Dunbar, Andreas Colliander, Dara Entekhabi, Fan Chen
2019 J jnl
Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Upgrade.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Jinzheng Peng, Sidharth Misra, Jeffrey R. Piepmeier, Emmanuel P. Dinnat, Simon H. Yueh, Thomas Meissner, David M. Le Vine, Kacie E. Shelton, Adam P. Freedman, Roy Scott Dunbar, Steven Tsz K. Chan, Rajat Bindlish, Giovanni De Amici, Priscilla N. Mohammed, Liang Hong, Derek Hudson, Thomas J. Jackson
2018 C conf
Global Freeze/Thaw Product from L-Band Radiometer Data.
IGARSS
Xiaolan Xu, Youngwook Kim, John S. Kimball, Chris Derksen, Roy Scott Dunbar, Andreas Colliander
2018 C conf
High Resolution Soil Moisture Product Based on Smap Active-Passive Approach Using Copernicus Sentinel 1 Data.
IGARSS
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
2018 C conf
Smap Microwave Radiometer: Instrument Status and Calibration for the First Three Years of Operation.
IGARSS
Jeffrey R. Piepmeier, Jinzheng Peng, Sidharth Misra, Emmanuel P. Dinnat, Simon H. Yueh, Thomas Meissner, David M. Le Vine, Kacie E. Shelton, Adam P. Freedman, Roy Scott Dunbar, Steven Tsz K. Chan, Julian Chaubell, Rajat Bindlish, Giovanni De Amici, Priscilla N. Mohammed, Liang Hong
2017 J jnl
A Time-Series Approach to Estimating Soil Moisture From Vegetated Surfaces Using L-Band Radar Backscatter.
IEEE Trans. Geosci. Remote. Sens.
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
2017 C conf
Assessment of version 4 of the SMAP passive soil moisture standard product.
IGARSS
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
2017 C conf
Backus-gilbert optimal interpoaltion applied to enhance SMAP data: Implementation and assessment.
IGARSS
Julian Chaubell, Steven Tsz K. Chan, Roy Scott Dunbar, Dara Entekhabi, Jinzheng Peng, Jeffrey R. Piepmeier, Simon Yueh
2017 C conf
Comparison of downscaling techniques for high resolution soil moisture mapping.
IGARSS
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
2017 C conf
Development and validation of the SMAP enhanced passive soil moisture product.
IGARSS
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
2017 C conf
High-resolution enhanced product based on SMAP active-passive approach using Sentinel 1 data and its applications.
IGARSS
Narendra N. Das, Dara Entekhabi, Seung-Bum Kim, Thomas Jagdhuber, Roy Scott Dunbar, Simon Yueh, Andreas Colliander
2017 C conf
High-resolution enhanced product based on SMAP active-passive approach using sentinel 1A and 1B SAR data.
IGARSS
Narendra N. Das, Dara Entekhabi, Seung-Bum Kim, Thomas Jagdhuber, Roy Scott Dunbar, Simon Yueh, Andreas Colliander
2017 C conf
Landscape freeze/thaw standerd and enhanced products from soil moisture active/passive (SMAP) radiometer data.
IGARSS
Xiaolan Xu, Chris Derksen, Roy Scott Dunbar, Andreas Colliander, John S. Kimball, Youngwook Kim
2017 J jnl
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.
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
2016 J jnl
Active-Passive Disaggregation of Brightness Temperatures During the SMAPVEX12 Campaign.
IEEE Trans. Geosci. Remote. Sens.
Delphine J. Leroux, Narendra Narayan Das, Dara Entekhabi, Andreas Colliander, Eni G. Njoku, Roy Scott Dunbar, Simon H. Yueh
2016 J jnl
Assessment of the SMAP Passive Soil Moisture Product.
IEEE Trans. Geosci. Remote. Sens.
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
2016 C conf
Evaluation of the validated Soil Moisture product from the SMAP radiometer.
IGARSS
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
2016 J jnl
Freeze/Thaw Detection and Validation Using Aquarius' L-Band Backscattering Data.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Xiaolan Xu, Chris Derksen, Simon H. Yueh, Roy Scott Dunbar, Andreas Colliander
2016 C conf
Landscape freeze/thaw products from Soil Moisture Active/Passive (SMAP) radar and radiometer data.
IGARSS
Xiaolan Xu, Roy Scott Dunbar, Chris Derksen, Andreas Colliander, John S. Kimball, Youngwook Kim
2016 C conf
Surface soil moisture retrieval using L-band SMAP SAR data and its validation.
IGARSS
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
2016 J jnl
Uncertainty Estimates in the SMAP Combined Active-Passive Downscaled Brightness Temperature.
IEEE Trans. Geosci. Remote. Sens.
Narendra Narayan Das, Dara Entekhabi, Roy Scott Dunbar, Eni G. Njoku, Simon H. Yueh
2015 J jnl
Classification of Alaska Spring Thaw Characteristics Using Satellite L-Band Radar Remote Sensing.
IEEE Trans. Geosci. Remote. Sens.
Jinyang Du, John S. Kimball, Marzieh Azarderakhsh, Roy Scott Dunbar, Mahta Moghaddam, Kyle C. McDonald
2014 J jnl
Point-Wise Wind Retrieval and Ambiguity Removal Improvements for the QuikSCAT Climatological Data Set.
IEEE Trans. Geosci. Remote. Sens.
Alexander G. Fore, Bryan W. Stiles, Alexandra H. Chau, Brent A. Williams, Roy Scott Dunbar, Ernesto Rodríguez
2010 J jnl
A Neural Network Technique for Improving the Accuracy of Scatterometer Winds in Rainy Conditions.
IEEE Trans. Geosci. Remote. Sens.
Bryan W. Stiles, Roy Scott Dunbar
2010 C conf
Forward simulations of passive microwave observations for the soil Moisture Active Passive (SMAP) mission.
IGARSS
Steven Tsz K. Chan, Eni G. Njoku, Roy Scott Dunbar
2010 J jnl
Obtaining Accurate Ocean Surface Winds in Hurricane Conditions: A Dual-Frequency Scatterometry Approach.
IEEE Trans. Geosci. Remote. Sens.
Bryan W. Stiles, Svetla M. Hristova-Veleva, Roy Scott Dunbar, Samuel F. Chan, Stephen L. Durden, Daniel Esteban-Fernandez, Ernesto Rodríguez, W. Lee Poulsen, Robert W. Gaston, Philip S. Callahan
2002 J jnl
Direction interval retrieval with thresholded nudging: a method for improving the accuracy of QuikSCAT winds.
IEEE Trans. Geosci. Remote. Sens.
Bryan W. Stiles, Brian D. Pollard, Roy Scott Dunbar
1999 J jnl
Postlaunch sensor verification and calibration of the NASA Scatterometer.
IEEE Trans. Geosci. Remote. Sens.
Wu-Yang Tsai, James E. Graf, Carroll Winn, James N. Huddleston, Roy Scott Dunbar, Michael H. Freilich, Frank J. Wentz, David G. Long, W. Linwood Jones
1991 J jnl
A median-filter-based ambiguity removal algorithm for NSCAT.
IEEE Trans. Geosci. Remote. Sens.
Scott J. Shaffer, Roy Scott Dunbar, S. Vincent Hsiao, David G. Long