Roy Scott Dunbar

According to our database, Roy Scott Dunbar authored at least 42 papers between 1991 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

Assessment of Surface Fractional Water Impacts on SMAP Soil Moisture Retrieval.

Jinyang Du, John S. Kimball, Steven Tsz K. Chan, Mario Julian Chaubell, Rajat Bindlish, Roy Scott Dunbar, Andreas Colliander

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2023

2022

Validation of Soil Moisture Data Products From the NASA SMAP Mission.

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

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2022

Regularized Dual-Channel Algorithm for the Retrieval of Soil Moisture and Vegetation Optical Depth From SMAP Measurements.

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

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2022

Development of SMAP Retrievals for Forested Regions: SMAPVEX19-22 and SMAPVEX22-Boreal.

Andreas Colliander, Michael H. Cosh, Aaron Berg, Sidharth Misra, Jaison Thomas Ambadan, Laura L. Bourgeau-Chavez, Vicky Kelly, Simon Kraatz, Paul Siqueira, Alexandre Roy, Warren Helgason, Ramata Magagi, Tarendra Lakhankar, Mehmet Ogut, Julian Chaubell, Scott Dunbar, Jay Famiglietti, Alexandra Georges Konings, Mehmet Kurum, Dara Entekhabi, Simon H. Yueh

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2022

Analysis of the SMAP Roughness Parameter and the SMAP Vegetation Optical Depth.

Julian Chaubell, Simon Yueh, Dara Entekhabi, Scott Dunbar, Andreas Colliander, Xiaolan Xu, Mohammad Mousavi

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2022

2021

Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Revisit: Approach and Performance.

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

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2021

Monitoring ECO-Hydrological Spring Onset Over Alaska and Northern Canada with Complementary Satellite Remote Sensing Data.

Youngwook Kim, John S. Kimball, Nicholas C. Parazoo, Xiaolan Xu, Roy Scott Dunbar, Andreas Colliander, Rolf Reichle

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2021

Active-Passive Surface Soil Moisture Retrievals with L-Band and C-Band Active and L-Band Passive Measurements.

Narendra N. Das, Dara Entekhabi, Seyedmohammad Mousavi, Simon Yueh, Roy Scott Dunbar, Andreas Colliander

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2021

Implementation and Analysis of the Dual-Channel Algorithm for the Retrieval of Soil Moisture and Vegetation Optical Depth for SMAP.

Julian Chaubell, Simon Yueh, Steven Chan, Roy Scott Dunbar, Andreas Colliander, Dara Entekhabi, Fan Chen, Rajat Bindlish, Peggy O'Neill

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2021

2020

Improved SMAP Dual-Channel Algorithm for the Retrieval of Soil Moisture.

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

IEEE Trans. Geosci. Remote. Sens., 2020

2019

Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Upgrade.

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

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019

Improving Brightness Temperature Measurements Near Coastal Areas for SMAP.

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

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019

Global Assessment of the SMAP Freeze/Thaw Data Record and Regional Applications for Detecting Spring Onset and Frost Events.

Youngwook Kim, John S. Kimball, Xiaolan Xu, Roy Scott Dunbar, Andreas Colliander, Chris Derksen

Remote. Sens., 2019

Smap Regularized Dual-Channel Algorithm for the Retrieval of Soil Moisture and Vegetation Optical Depth.

Julian Chaubell, Simon Yueh, Steven Tsz K. Chan, Roy Scott Dunbar, Andreas Colliander, Dara Entekhabi, Fan Chen

Proceedings of the 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019

2018

Global Freeze/Thaw Product from L-Band Radiometer Data.

Xiaolan Xu, Youngwook Kim, John S. Kimball, Chris Derksen, Roy Scott Dunbar, Andreas Colliander

Proceedings of the 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

Smap Microwave Radiometer: Instrument Status and Calibration for the First Three Years of Operation.

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

Proceedings of the 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

High Resolution Soil Moisture Product Based on Smap Active-Passive Approach Using Copernicus Sentinel 1 Data.

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

Proceedings of the 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

Improving Brigthness Temperature Measurements Near Coastal Areas.

Julian Chaubell, Simon Yueh, Jinzheng Peng, Steven Chan, Scott Dunbar, Dara Entekhabi

Proceedings of the 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018

2017

A Time-Series Approach to Estimating Soil Moisture From Vegetated Surfaces Using L-Band Radar Backscatter.

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

IEEE Trans. Geosci. Remote. Sens., 2017

Surface Soil Moisture Retrieval Using the L-Band Synthetic Aperture Radar Onboard the Soil Moisture Active-Passive Satellite and Evaluation at Core Validation Sites.

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

IEEE Trans. Geosci. Remote. Sens., 2017

Landscape freeze/thaw standerd and enhanced products from soil moisture active/passive (SMAP) radiometer data.

Xiaolan Xu, Chris Derksen, Roy Scott Dunbar, Andreas Colliander, John S. Kimball, Youngwook Kim

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

Comparison of downscaling techniques for high resolution soil moisture mapping.

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

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

Assessment of version 4 of the SMAP passive soil moisture standard product.

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

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

High-resolution enhanced product based on SMAP active-passive approach using sentinel 1A and 1B SAR data.

Narendra N. Das, Dara Entekhabi, Seung-Bum Kim, Thomas Jagdhuber, Roy Scott Dunbar, Simon Yueh, Andreas Colliander

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

High-resolution enhanced product based on SMAP active-passive approach using Sentinel 1 data and its applications.

Narendra N. Das, Dara Entekhabi, Seung-Bum Kim, Thomas Jagdhuber, Roy Scott Dunbar, Simon Yueh, Andreas Colliander

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

Backus-gilbert optimal interpoaltion applied to enhance SMAP data: Implementation and assessment.

Julian Chaubell, Steven Tsz K. Chan, Roy Scott Dunbar, Dara Entekhabi, Jinzheng Peng, Jeffrey R. Piepmeier, Simon Yueh

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

Development and validation of the SMAP enhanced passive soil moisture product.

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

Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium, 2017

2016

Active-Passive Disaggregation of Brightness Temperatures During the SMAPVEX12 Campaign.

Delphine J. Leroux, Narendra Narayan Das, Dara Entekhabi, Andreas Colliander, Eni G. Njoku, Roy Scott Dunbar, Simon H. Yueh

IEEE Trans. Geosci. Remote. Sens., 2016

Uncertainty Estimates in the SMAP Combined Active-Passive Downscaled Brightness Temperature.

Narendra Narayan Das, Dara Entekhabi, Roy Scott Dunbar, Eni G. Njoku, Simon H. Yueh

IEEE Trans. Geosci. Remote. Sens., 2016

Assessment of the SMAP Passive Soil Moisture Product.

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

IEEE Trans. Geosci. Remote. Sens., 2016

Freeze/Thaw Detection and Validation Using Aquarius' L-Band Backscattering Data.

Xiaolan Xu, Chris Derksen, Simon H. Yueh, Roy Scott Dunbar, Andreas Colliander

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2016

Landscape freeze/thaw products from Soil Moisture Active/Passive (SMAP) radar and radiometer data.

Xiaolan Xu, Roy Scott Dunbar, Chris Derksen, Andreas Colliander, John S. Kimball, Youngwook Kim

Proceedings of the 2016 IEEE International Geoscience and Remote Sensing Symposium, 2016

Evaluation of the validated Soil Moisture product from the SMAP radiometer.

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

Proceedings of the 2016 IEEE International Geoscience and Remote Sensing Symposium, 2016

Surface soil moisture retrieval using L-band SMAP SAR data and its validation.

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

Proceedings of the 2016 IEEE International Geoscience and Remote Sensing Symposium, 2016

2015

Classification of Alaska Spring Thaw Characteristics Using Satellite L-Band Radar Remote Sensing.

Jinyang Du, John S. Kimball, Marzieh Azarderakhsh, Roy Scott Dunbar, Mahta Moghaddam, Kyle C. McDonald

IEEE Trans. Geosci. Remote. Sens., 2015

2014

Point-Wise Wind Retrieval and Ambiguity Removal Improvements for the QuikSCAT Climatological Data Set.

Alexander G. Fore, Bryan W. Stiles, Alexandra H. Chau, Brent A. Williams, Roy Scott Dunbar, Ernesto Rodríguez

IEEE Trans. Geosci. Remote. Sens., 2014

2010

Obtaining Accurate Ocean Surface Winds in Hurricane Conditions: A Dual-Frequency Scatterometry Approach.

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

IEEE Trans. Geosci. Remote. Sens., 2010

A Neural Network Technique for Improving the Accuracy of Scatterometer Winds in Rainy Conditions.

Bryan W. Stiles, Roy Scott Dunbar

IEEE Trans. Geosci. Remote. Sens., 2010

Forward simulations of passive microwave observations for the soil Moisture Active Passive (SMAP) mission.

Steven Tsz K. Chan, Eni G. Njoku, Roy Scott Dunbar

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2010

2002

Direction interval retrieval with thresholded nudging: a method for improving the accuracy of QuikSCAT winds.

Bryan W. Stiles, Brian D. Pollard, Roy Scott Dunbar

IEEE Trans. Geosci. Remote. Sens., 2002

1999

Postlaunch sensor verification and calibration of the NASA Scatterometer.

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

IEEE Trans. Geosci. Remote. Sens., 1999

1991

A median-filter-based ambiguity removal algorithm for NSCAT.

Scott J. Shaffer, Roy Scott Dunbar, S. Vincent Hsiao, David G. Long

IEEE Trans. Geosci. Remote. Sens., 1991