Projects per year
Personal profile
Biography
Jeffrey Walker is a Professor and Head of the Department of Civil Engineering at Monash University. He is undertaking research on soil moisture remote sensing and data assimilation, including development of the only Australian airborne capability for simulating new satellite missions for soil moisture. He is contributing to soil moisture satellite missions at both NASA and ESA, as a Science Definition Team member for the Soil Moisture Active Passive (SMAP) mission and Cal/val Team member for the Soil Moisture and Ocean Salinity (SMOS) mission respectively.
Professor Jeffrey Walker received his BEng(Civil) and BSurv degrees in 1996 with Hons 1 and University Medal from the University of Newcastle, Australia, and received his PhD in Water Resources Engineering from the same University in 2000. His PhD thesis was among the early pioneering research on estimation of root-zone soil moisture from remotely sensed surface soil moisture observations. He then joined NASA Goddard Space Flight Centre to implement his soil moisture work globally. In 2001 he moved to the Department of Civil and Environmental Engineering at the University of Melbourne as Lecturer, where he continued his soil moisture work, including development of the only Australian airborne capability for simulating new satellite missions for soil moisture. In 2010 he was appointed as Professor in the Department of Civil Engineering at Monash University where he is continuing this research. He is contributing to soil moisture satellite missions at both NASA and ESA, as a Science Definition Team member for the Soil Moisture Active Passive (SMAP) mission and Cal/val Team member for the Soil Moisture and Ocean Salinity (SMOS) mission respectively.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Research area keywords
- Data Assimilation
- Land Surface Modelling
- Hydrologic Remote Sensing
- Soil Moisture
- Rainfall
- Evapotranspiration
- Flooding
- Agriculture
- Space
- Satellite
Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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SPARC: ARC Research Hub for Smart Next Generation Transport Pavements
Kodikara, J. (Primary Chief Investigator (PCI)), Walker, J. (Chief Investigator (CI)), Sanjayan, J. (Chief Investigator (CI)), Vu, L. H. (Chief Investigator (CI)), Setunge, S. (Chief Investigator (CI)), Wallace, M. (Chief Investigator (CI)), Chiu, W. (Chief Investigator (CI)), Nikraz, H. (Chief Investigator (CI)), Bouazza, A. (Chief Investigator (CI)), Shahin, M. (Chief Investigator (CI)), Gallage, C. P. K. (Chief Investigator (CI)), Kulkarni, A. (Chief Investigator (CI)), Bui, H. H. (Chief Investigator (CI)), Coxon, S. (Chief Investigator (CI)), Rajeev, P. (Chief Investigator (CI)), Lu, Y. (Chief Investigator (CI)), Giustozzi, F. (Chief Investigator (CI)), White, G. W. (Chief Investigator (CI)), Fang, Y. (Chief Investigator (CI)), Robert, D. (Chief Investigator (CI)), Zhou, A. (Chief Investigator (CI)), Molotnikov, A. (Chief Investigator (CI)), Xue, J. (Chief Investigator (CI)), Shackleton, M. C. (Partner Investigator (PI)), Papacostas, A. (Partner Investigator (PI)), Tan, J. (Partner Investigator (PI)), Kuen, T. (Partner Investigator (PI)), Ramanujam, J. (Chief Investigator (CI)), Zhong, J. (Partner Investigator (PI)), Shahkolahi, A. (Partner Investigator (PI)), Gibbs, D. T. (Partner Investigator (PI)), Gu, H. (Chief Investigator (CI)), Hoogendoorn, S. P. (Partner Investigator (PI)), Maina, J. (Partner Investigator (PI)), Underwood, B. (Partner Investigator (PI)), Singh, D. (Partner Investigator (PI)), Chabot, A. (Partner Investigator (PI)), Henning, T. (Partner Investigator (PI)), Sheng, D. (Chief Investigator (CI)), Airey, G. (Partner Investigator (PI)), Yeaman, J. (Partner Investigator (PI)), Palma, R. S. (Partner Investigator (PI)), Guppy, R. (Partner Investigator (PI)), Muller, W. (Partner Investigator (PI)), Thirugnanasundralingam, K. (Partner Investigator (PI)), Dack, S. (Partner Investigator (PI)), Chow, R. (Partner Investigator (PI)), Arashpour, M. (Chief Investigator (CI)), D'Angelo, A. (Partner Investigator (PI)), Albrecht, D. (Chief Investigator (CI)), Rong, J. (Chief Investigator (CI)), Xu, B. (Partner Investigator (PI)), Barker, D. (Partner Investigator (PI)), Sounthararajah, A. (Project Manager), Fletcher, W. (Partner Investigator (PI)) & Marques, P. (Partner Investigator (PI))
Australian Research Council (ARC), Transurban Limited (trading as Transurban Linkt), Monash University – Internal University Contribution, Monash University – Internal Faculty Contribution, EIC Activities Pty Ltd, Monash University – Internal Department Contribution, TGVK Pty Ltd, Earth Radar Pty Ltd, EON Reality, Jaybro Group Pty Ltd (trading as Polyfabrics Australasia Pty Ltd), Monash City Council (trading as Monash Gallery of Art), University of Technology (UTS) Sydney
1/07/19 → 30/06/25
Project: Research
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Feasibility study on condition assessment and remaining life prediction of full-depth asphalt pavements in toll roads
Kodikara, J. (Primary Chief Investigator (PCI)), Walker, J. (Chief Investigator (CI)), Sounthararajah, A. (Project Manager) & Sharp, J. (Partner Investigator (PI))
18/12/19 → 18/12/22
Project: Research
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Smart Sensing, Construction and Maintenance Monitoring: Use of L-band radiometer or other suitable sensing techniques for remote moisture measurements unbound materials and soil subgrades
Walker, J. (Primary Chief Investigator (PCI)), Lu, Y. (Chief Investigator (CI)), Kodikara, J. (Chief Investigator (CI)), Barker, D. (Partner Investigator (PI)) & Sounthararajah, A. (Project Manager)
1/07/19 → 30/06/24
Project: Research
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Quantifying the benefits of intelligent compaction for unbound/subgrade pavement performance
Kodikara, J. (Primary Chief Investigator (PCI)), Walker, J. (Chief Investigator (CI)), Yang, X. (Chief Investigator (CI)), Guppy, R. (Partner Investigator (PI)), Barker, D. (Partner Investigator (PI)) & Sounthararajah, A. (Project Manager)
1/07/19 → 30/06/24
Project: Research
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A cross-resolution transfer learning approach for soil moisture retrieval from Sentinel-1 using limited training samples
Zhu, L., Dai, J., Liu, Y., Yuan, S., Qin, T. & Walker, J. P., 1 Feb 2024, In: Remote Sensing of Environment. 301, 16 p., 113944.Research output: Contribution to journal › Article › Research › peer-review
23 Citations (Scopus) -
An alternative technology using microwaves for dry back process of unbound granular pavements during construction – A review
Athmarajah, G., Sounthararajah, A., Walker, J. P., Deo, R. & Kodikara, J., May 2024, In: Transportation Geotechnics. 46, 21 p., 101245.Research output: Contribution to journal › Review Article › Research › peer-review
1 Citation (Scopus) -
A Soil Moisture Spatial Downscaling Method for Smap Using the Optical Trapezoid Model
Zhong, Y., Wei, Z., Colliander, A. & Walker, J. P., 2024, IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. IEEE, Institute of Electrical and Electronics Engineers, p. 5084-5086 3 p.Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other
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Downscaling passive microwave soil moisture estimates using stand-alone optical remote sensing data
Zhong, Y., Wei, Z., Miao, L., Wang, Y., Walker, J. P. & Colliander, A., 10 Apr 2024, In: IEEE Transactions on Geoscience and Remote Sensing. 62, 19 p.Research output: Contribution to journal › Article › Research › peer-review
3 Citations (Scopus) -
Evaluation of the Bayesian downscaling algorithm for achieving higher resolution soil moisture data
Wu, X., Walker, J. P. & Ye, N., 19 Feb 2024, In: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 17, p. 5332-5344 13 p.Research output: Contribution to journal › Article › Research › peer-review
Open Access1 Citation (Scopus)
Prizes
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SSSI Educational Development Award
Walker, J. (Recipient), 2014
Prize: Prize (including medals and awards)