19972020

Research output per year

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Research Output

2007

Effect of spatial scale on soil moisture retrieval from passive microwave sensors

Panciera, R., Walker, J. P., Kim, E., Kalma, J. & Merlin, O., 1 Dec 2007, MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings. p. 2576-2582 7 p. (MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

2 Citations (Scopus)

Goulburn river experimental catchment data set

Rudiger, C., Hancock, G., Hemakumara, H. M., Jacobs, B., Kalma, J. D., Martinez, C., Thyer, M., Walker, J., Wells, T. & Willgoose, G. R., 2007, In : Water Resources Research. 43, 10, p. 1 - 10 10 p.

Research output: Contribution to journalArticleResearchpeer-review

69 Citations (Scopus)

Remotely sensed soil moisture over Australia from AMSR-E

Draper, C. S., Walker, J. P., Steinle, P. J., De Jeu, R. A. M. & Holmes, T. R. H., 1 Dec 2007, MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings. (MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

8 Citations (Scopus)

Scanning multichannel microwave radiometer snow water equivalent assimilation

Dong, J., Walker, J., Houser, P. R. & Sun, C., 2007, In : Journal of Geophysical Research. 112, D07108, p. 1 - 16 16 p.

Research output: Contribution to journalArticleResearchpeer-review

50 Citations (Scopus)

Soil moisture measurement in heterogeneous terrain

Merlin, O., Walker, J. P., Panciera, R., Young, R., Kalma, J. D. & Kim, E. J., 1 Dec 2007, MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings. p. 2604-2610 7 p. (MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

40 Citations (Scopus)

The CoSMOS L-band experiment in Southeast Australia

Saleh, K., Kerr, Y. H., Boulet, G., Maisongrande, P., De Rosnay, P., Floricioiu, D., Escorihuela, M. J., Wigneron, J. P., Cano, A., López-Baeza, E., Grant, J. P., Balling, J., Skou, N., Berger, M., Delwart, S., Wursteisen, P., Panciera, R. & Walker, J. P., 1 Dec 2007, 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007. p. 3948-3951 4 p. 4423712. (International Geoscience and Remote Sensing Symposium (IGARSS)).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

9 Citations (Scopus)

The national airborne field experiment data sets

Walker, J. P., Balling, J., Bell, M., Berg, A., Berger, M., Biasoni, D., Botha, E., Boulet, G., Chen, Y., Christen, E., DeJeu, R., DeRosnay, P., Dever, C., Draper, C., Fenollar, J., Gomez, C., Grant, J. P., Hacker, J., Hafeez, M., Hancock, G. & 42 others, Hansen, D., Holz, L., Hornbuckle, J., Hurkmans, R., Jackson, T., Johanson, J., Jones, P., Jones, S., Kalma, J., Kerr, Y., Kim, E., Kuzmin, V., Lakshmi, V., Lopez, E., Maggioni, V., Maisongrande, P., Martinez, C., McKee, L., Merlin, O., Mladenova, I., O'Neill, P., Panciera, R., Paruscio, V., Pipunic, R., Rawls, W., Rinaldi, M., Rüdiger, C., Saco, P., Saleh, K., Savstrup-Kristensen, S., Shoemark, V., Skou, N., Soebjaerg, S., Summerell, G., Teuling, A. J., Thompson, H., Thyer, M., Toyra, J., Tsang, A., Wells, T., Wursteisen, P. & Young, R., 1 Dec 2007, MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings. p. 2625-2631 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

1 Citation (Scopus)
2006

A comparative study of Australian cartometric and photogrammetric digital elevation model accuracy

Walker, J. & Willgoose, G. R., 2006, In : Photogrammetric Engineering and Remote Sensing. 72, 7, p. 771 - 779 9 p.

Research output: Contribution to journalArticleResearchpeer-review

16 Citations (Scopus)

A framework for assessing the potential of remote-sensed gravity to provide new insight on the hydrology of the Murray-Darling Basin

Ellett, K., Walker, J., Western, A. & Rodell, M., 2006, In : Australian Journal of Water Resources. 10, 2, p. 125 - 138 14 p.

Research output: Contribution to journalArticleResearchpeer-review

A method for retrieving high-resolution surface soil moisture from hydros L-band radiometer and radar observations

Zhan, X., Houser, P. R., Walker, J. & Crow, W. T., 2006, In : IEEE Transactions on Geoscience and Remote Sensing. 44, 6, p. 1534 - 1544 11 p.

Research output: Contribution to journalArticleResearchpeer-review

70 Citations (Scopus)

Controls on patterns of soil moisture in arid and semi-arid systems

Grayson, R. B., Western, A. W., Walker, J. P., Kandel, D. G., Costelloe, J. F. & Wilson, D. J., 1 Jan 2006, Dryland Ecohydrology. Springer, p. 109-127 19 p.

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

17 Citations (Scopus)

Remote sensing estimates of actual evapotranspiration in an irrigation district

Savige, C. L., French, A. N., Western, A., Walker, J., Abuzar, M., Hacker, J. & Kalma, J. D., 2006, In : Australian Journal of Water Resources. 10, 2, p. 207 - 212 6 p.

Research output: Contribution to journalArticleResearchpeer-review

Soil moisture initialization for climate prediction: assimilation of scanning multifrequency microwave radiometer soil moisture data into a land surface model

Ni-Meister, W., Houser, P. R. & Walker, J., 2006, In : Journal of Geophysical Research. 111, D20102, p. 1 - 15 15 p.

Research output: Contribution to journalArticleResearchpeer-review

26 Citations (Scopus)
2005

Assimilation of sea-surface temperature into a hydrodynamic model of Port Phillip Bay, Australia

Turner, M. R. J., Walker, J. P., Oke, P. R. & Grayson, R. B., 1 Dec 2005, 17th Australasian Coastal and Ocean Engineering Conference 2005 and the 10th Australasian Port and Harbour Conference 2005, COASTS and PORTS 2005. p. 511-516 6 p. (17th Australasian Coastal and Ocean Engineering Conference 2005 and the 10th Australasian Port and Harbour Conference 2005, COASTS and PORTS 2005).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)

Factors affecting remotely sensed snow water equivalent uncertainty

Dong, J., Walker, J. & Houser, P. R., 2005, In : Remote Sensing of Environment. 97, 1, p. 68 - 82 15 p.

Research output: Contribution to journalArticleResearchpeer-review

97 Citations (Scopus)

GRACE gravity fields as a new measure for assessing large-scale hydrological models

Ellett, K. M., Walker, J. P., Rodell, M., Chen, J. & Western, A. W., 1 Dec 2005, MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings. p. 2911-2917 7 p. (MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

12 Citations (Scopus)

Hydrologic data assimilation

Walker, J. & Houser, P. R., 2005, Advances in Water Science Methodologies. Aswathanarayana, A. (ed.). Netherlands: A A Balkema, p. 1 - 30 30 p.

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

National airborne field experiments for prediction in ungauged basins

Walker, J. P., Hacker, J. M., Kalma, J. D., Kim, E. J. & Panciera, R., 1 Dec 2005, MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings. p. 2974-2980 7 p. (MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

8 Citations (Scopus)

Obtaining surface energy fluxes from remotely sensed data

Savige, C., Western, A. W., Walker, J. P., Kalma, J. D., French, A. N. & Abuzar, M., 1 Dec 2005, MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings. p. 2946-2952 7 p. (MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

5 Citations (Scopus)

Quantifying the uncertainty in passive microwave snow water equivalent observations

Foster, J. L., Sun, C., Walker, J., Kelly, R. J., Chang, A. T. C., Dong, J. & Powell, H., 2005, In : Remote Sensing of Environment. 94, 2, p. 187 - 203 17 p.

Research output: Contribution to journalArticleResearchpeer-review

211 Citations (Scopus)

Quantitative comparison of spatial fields for hydrological model assessment - some promising approaches

Wealands, S., Grayson, R. B. & Walker, J., 2005, In : Advances in Water Resources. 28, 1, p. 15 - 32 18 p.

Research output: Contribution to journalArticleResearchpeer-review

47 Citations (Scopus)

Root zone soil moisture retrieval using streamflow and surface moisture data assimilation in nested catchments

Rudiger, C., Walker, J., Kalma, J., Willgoose, G. & Houser, P., 2005, MODSIM05: International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making - Proceedings. Zerger, A. & Argent, R. (eds.). Nedlands WA: UWA Publishing, p. 1458 - 1464 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

3 Citations (Scopus)

Soil moisture initialization for climate prediction: Characterization of model and observation errors

Ni-Meister, W., Walker, J. & Houser, P., 2005, In : Journal of Geophysical Research. 110, 13, p. 1 - 14 14 p.

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

The effect of irrigation schedules on water table depth and root zone soil moisture

Nguyen, H. T. & Walker, J. P., 1 Dec 2005, MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings. p. 1286-1292 7 p. (MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)

Using tolerances when assessing models using spatial fields

Wealands, S. R., Grayson, R. B. & Walker, J. P., 1 Dec 2005, MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings. p. 2547-2553 7 p. (MODSIM05 - International Congress on Modelling and Simulation: Advances and Applications for Management and Decision Making, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

2004

Active microwave remote sensing for soil moisture measurement: A field evaluation using ERS-2

Walker, J., Houser, P. & Willgoose, G., 2004, In : Hydrological Processes. 18, 11, p. 1975 - 1997 23 p.

Research output: Contribution to journalArticleResearchpeer-review

62 Citations (Scopus)

A methodology for snow data assimilation in a land surface model

Sun, C., Walker, J. & Houser, P., 2004, In : Journal of Geophysical Research. 109, D8, p. 1 - 12 12 p.

Research output: Contribution to journalArticleResearchpeer-review

67 Citations (Scopus)

In situ measurement of soil moisture: a comparison of techniques

Walker, J., Willgoose, G. & Kalma, J., 2004, In : Journal of Hydrology. 293, p. 85 - 99 15 p.

Research output: Contribution to journalArticleResearchpeer-review

144 Citations (Scopus)

Mapping random and systematic errors of satellite-derived snow water equivalent observations in Eurasia

Foster, J., Sun, C., Walker, J. P., Kelly, R., Dong, J. & Chang, A., 1 Dec 2004, In : Proceedings of SPIE - The International Society for Optical Engineering. 5568, p. 150-158 9 p., 26.

Research output: Contribution to journalConference articleOther

Requirements of a global near-surface soil moisture satellite mission: accuracy, repeat time and spatial resolution

Walker, J. & Houser, P., 2004, In : Advances in Water Resources. 27, 8, p. 785 - 801 17 p.

Research output: Contribution to journalArticleResearchpeer-review

101 Citations (Scopus)

Soil moisture initialization for climate prediction: Characterization of model and observation errors

Ni-Meister, W., Walker, J. & Houser, P. R., 1 Jun 2004, In : Bulletin of the American Meteorological Society. p. 3379-3381 3 p.

Research output: Contribution to journalConference articleOther

The global land data assimilation system

Rodell, M., Houser, P., Jambor, U., GottschalcK, J., Mitchell, K., Meng, C., Arsenault, K., Cosgrove, B., Radakovich, J., Bosilovich, M., Entin, J., Walker, J., Lohmann, D. & Toll, D., 2004, In : Bulletin of the American Meteorological Society. 85, 3, p. 381 - 394 14 p.

Research output: Contribution to journalArticleResearchpeer-review

2063 Citations (Scopus)
2003

Impact of bias correction to reanalysis products on simulations of North American soil moisture and hydrological fluxes

Berg, A. A., Famiglietti, J. S., Walker, J. P. & Houser, P. R., 27 Aug 2003, In : Journal of Geophysical Research. 108, 16

Research output: Contribution to journalArticleResearchpeer-review

Open Access
105 Citations (Scopus)

Importance of soil moisture measurements for inferring parameters in hydrologic models of low-yielding ephemeral catchments

Wooldridge, S. A., Kalma, J. D. & Walker, J. P., 25 Jan 2003, In : Environmental Modelling and Software. 18, 1, p. 35-48 14 p.

Research output: Contribution to journalArticleResearchpeer-review

40 Citations (Scopus)

New technologies require advances in hydrologic data assimilation

Walker, J. P., Houser, P. R. & Reichle, R. H., 9 Dec 2003, In : Eos. 84, 49

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)
2002

Evaluation of the OhmMapper instrument for soil moisture measurement

Walker, J. P. & Houser, P. R., 14 May 2002, In : Soil Science Society of America Journal. 66, 3, p. 728-734 7 p.

Research output: Contribution to journalArticleResearchpeer-review

17 Citations (Scopus)

Extended versus ensemble Kalman filtering for land data assimilation

Reichle, R. H., Walker, J. P., Koster, R. D. & Houser, P. R., 1 Dec 2002, In : Journal of Hydrometeorology. 3, 6, p. 728-740 13 p.

Research output: Contribution to journalArticleResearchpeer-review

236 Citations (Scopus)

Three-dimensional soil moisture profile retrieval by assimilation of near-surface measurements: Simplified Kalman filter covariance forecasting and field application

Walker, J. P., Willgoose, G. R. & Kalma, J. D., 1 Dec 2002, In : Water Resources Research. 38, 12, p. 371-3713 3343 p.

Research output: Contribution to journalArticleResearchpeer-review

41 Citations (Scopus)
2001

A methodology for initializing soil moisture in a global climate model: Assimilation of near-surface soil moisture observations

Walker, J. P. & Houser, P. R., 16 Jun 2001, In : Journal of Geophysical Research. 106, D11, p. 11761-11774 14 p., 2001JD900149.

Research output: Contribution to journalArticleResearchpeer-review

170 Citations (Scopus)

A methodology for surface soil moisture and vegetation optical depth retrieval using the microwave polarization difference index

Owe, M., De Jeu, R. & Walker, J., 1 Sep 2001, In : IEEE Transactions on Geoscience and Remote Sensing. 39, 8, p. 1643-1654 12 p.

Research output: Contribution to journalArticleResearchpeer-review

480 Citations (Scopus)

One-dimensional soil moisture profile retrieval by assimilation of near-surface measurements: A simplified soil moisture model and field application

Walker, J. P., Willgoose, G. R. & Kalma, J. D., 1 Aug 2001, In : Journal of Hydrometeorology. 2, 4, p. 356-373 18 p.

Research output: Contribution to journalArticleResearchpeer-review

81 Citations (Scopus)

One-dimensional soil moisture profile retrieval by assimilation of near-surface observations: A comparison of retrieval algorithms

Walker, J. P., Willgoose, G. R. & Kalma, J. D., 1 Jun 2001, In : Advances in Water Resources. 24, 6, p. 631-650 20 p.

Research output: Contribution to journalArticleResearchpeer-review

148 Citations (Scopus)

Temporal and spatial resolution requirements for a soil moisture mission

Walker, J. P. & Houser, P. R., 1 Dec 2001, p. 6-8. 3 p.

Research output: Contribution to conferencePaper

1 Citation (Scopus)

The Nerrigundah data set: Soil moisture patterns, soil characteristics, and hydrological flux measurements

Walker, J. P., Willgoose, G. R. & Kalma, J. D., 1 Jan 2001, In : Water Resources Research. 37, 11, p. 2653-2658 6 p.

Research output: Contribution to journalArticleResearchpeer-review

38 Citations (Scopus)
1999

On the effect of digital elevation model accuracy on hydrology and geomorphology

Walker, J. P. & Willgoose, G. R., 1 Jan 1999, In : Water Resources Research. 35, 7, p. 2259-2268 10 p.

Research output: Contribution to journalArticleResearchpeer-review

151 Citations (Scopus)
1997

Profile soil moisture estimation using the modified IEM

Walker, J. P., Troch, P. A., Mancini, M., Willgoose, G. R. & Kalma, J. D., 1 Jan 1997, p. 1263-1265. 3 p.

Research output: Contribution to conferencePaper

11 Citations (Scopus)