Staff Profile:Dr Anne Verhoef

Name:

Dr Anne Verhoef

Job Title:

Senior Lecturer in Soil Physics and Micrometeorology

Responsibilities:

Special Needs Advisor, Exams Officer, Postgraduate Officer

Areas of Interest:

Anne's major interest is the parameterisation of the exchange of heat, water vapour and CO2 between soil, vegetation and atmosphere for use in models simulating land surface exchange processes. Detailed micrometeorological, soil physical and plant physiological data have been used in combination with land surface models (LSMs). Other interests include:

• The improvement of land surface parameterisations to make model descriptions more realistic and, if appropriate for a particular application, more mechanistic. Examples are: incorporating a carbon-based parameterisation to describe canopy surface resistance and vegetation dynamics in a multi-source SVAT model; the surface parameter kB-1 (describing the excess resistance to heat transfer compared to the exchange of momentum).
• Improving the model descriptions of the control of soil water stress on canopy surface resistance and scrutinising/improving the currently available methods to obtain validation data for soil moisture content, surface temperature, soil thermal properties, soil heat flux and evaporation. This research involved various intensive field campaigns near the UoR (Sonning farm).
• Micro-advection (as observed during the Sonning farm experiments using mini-lysimeters with a differential irrigation pattern) and water vapour adsorption by bare soil, Spain (as measured in an olive grove in Southern Spain in collaboration with colleagues at the Instituto de Recursos Naturales y Agrobiologia, CSIC, Seville, Spain).

Anne welcomes enquiries from potentail PhD students. Applcations are invited for the competition funded project:

Research groups / Centres:

• Earth Systems Science Research Group
• Soil Research Centre
• Walker Institute

Key Facts:

Anne completed a combined BSc/MSc in Soil Science (1990) and a PhD (1995) in Micrometeorology at Wageningen University (The Netherlands). She then held an EC-funded Post-doctoral position at the Institute of Hydrology (Wallingford, UK, currently CEH-Wallingford), working on physiologically-based models of vegetation dynamics for improved description of land surface-atmosphere interactions in climate models. She joined the Department as a Lecturer in Environmental Physics in 1999. She has over 15 years of experience with land surface modelling, as well as with soil physical, hydrometeorological and plant-physiological measurement methods. Experimental field-sites included a rainfed vineyard in Central Spain, a savannah in Niger, West-Africa, and more recently agricultural fields in the UK and Southern Spain.

Publications:

Y

Jump to: 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004

Number of items: 21.

2012

• Garcia Gonzalez, R., Verhoef, A., Vidale, P. and Braud, I. (2012) Incorporation of water vapour transfer in the JULES Land Surface Model: implications for key soil variables and land surface fluxes. Water Resources Research. doi: 10.1029/2011WR011811 (In Press)
• Evans, J. G., McNeil, D., Finch, J. W., Murray, T., Harding, R. J. and Verhoef, A. (2012) Determination of turbulent heat fluxes using a large aperture scintillometer over undulating mixed agricultural terrain. Agricultural and Forest Meteorology. ISSN 0168-1923 (In Press)
• Gokmen, M. D., Vekerdy, Z., Verhoef, A., Verhoef, W., Batelaan, O. and van der Tol, C. (2012) Integration of soil moisture in SEBS for improving evapotranspiration estimation under water stress conditions. Remote Sensing of Environment. ISSN 0034-4257 (In Press)
• Garcia Gonzalez, R., Verhoef, A., Vidale, P., Main, B., Gan, G. and Wu, Y. (2012) Interactions between the physical soil environment and a horizontal ground coupled heat pump, for a domestic site in the UK. Renewable Energy. ISSN 0960-1481 doi: 10.1016/j.renene.2012.01.080 (In Press)
• Verhoef, A., Ottle, C., Cappelaere, B., Murray, T., Saux-Picart, S., Zribi, M., Maignan, F., Boulain, N., Demarty, J. and Ramier, D. (2012) Spatio-temporal surface soil heat flux estimates from satellite data; results for the AMMA experiment at the Fakara (Niger) supersite. Agricultural and Forest Meteorology, 154-155. pp. 55-66. ISSN 0168-1923 doi: dx.doi.org/10.1016/j.agrformet.2011.08.003

2011

• Egea, G., Verhoef, A. and Vidale, P. L. (2011) Towards an improved and more flexible representation of water stress in coupled photosynthesis–stomatal conductance models. Agricultural and Forest Meteorology, 151 (10). pp. 1370-1384. ISSN 0168-1923 doi: 10.1016/j.agrformet.2011.05.019
• Wu, Y., Gan, G., Garcia Gonzalez, R., Verhoef, A. and Vidale, P. L. (2011) Prediction of the thermal performance of horizontal-coupled ground source heat exchangers. International Journal of Low-Carbon Technologies, 6 (4). pp. 261-269. ISSN 1748-1317 doi: 10.1093/ijlct/ctr013

2010

• Wu, Y., Gan, G., Verhoef, A., Vidale, P. L. and Garcia Gonzalez, R. (2010) Experimental measurement and numerical simulation of horizontal-coupled slinky ground source heat exchangers. Applied Thermal Engineering, 30 (16). pp. 2574-2583. ISSN 1359-4311 doi: 10.1016/j.applthermaleng.2010.07.008

2009

• van der Tol, C., Verhoef, W., Timmermans, J., Verhoef, A. and Su, Z. (2009) An integrated model of soil-canopy spectral radiances, photosynthesis, fluorescence, temperature and energy balance. Biogeosciences, 6 (12). pp. 3109-3129. ISSN 1726-4170
• van der Tol, C., van der Tol, S., Verhoef, A., Su, B., Timmermans, J., Houldcroft, C. and Gieske, A. (2009) A Bayesian approach to estimate sensible and latent heat over vegetated land surface. Hydrology and Earth System Sciences, 13 (6). pp. 749-758. ISSN 1027-5606
• Dharssi, I., Vidale, P. L., Verhoef, A., Macpherson, B., Jones, C. and Best, M. (2009) New soil physical properties implemented in the Unified Model at PS18. Forecasting Research Technical Report . 528. Technical Report. UK Met Office, Exeter. pp33.

2008

• Chachar, Q. I., Solangi, A. G. and Verhoef, A. (2008) Influence of sodium chloride on seed germination and seedling root growth of cotton (Gossypium hirsutum L.). Pakistan Journal of Botany, 40 (1). pp. 183-197. ISSN 0556-3321

2007

• Fernandez-Galvez, J., Verhoef, A. and Barahona, E. (2007) Estimating soil water fluxes from soil water records obtained using dielectric sensors. Hydrological Processes, 21 (20). pp. 2785-2793. ISSN 0885-6087 doi: 10.1002/hyp.6494
• Murray, T. and Verhoef, A. (2007) Moving towards a more mechanistic approach in the determination of soil heat flux from remote measurements - I. A universal approach to calculate thermal inertia. Agricultural and Forest Meteorology, 147 (1-2). pp. 80-87. ISSN 0168-1923 doi: 10.1016/j.agrformet.2007.07.004
• Murray, T. and Verhoef, A. (2007) Moving towards a more mechanistic approach in the determination of soil heat flux from remote measurements - II. Diurnal shape of soil heat flux. Agricultural and Forest Meteorology, 147 (1-2). pp. 88-97. ISSN 0168-1923 doi: 10.1016/j.agrformet.2007.06.009

2006

• Verhoef, A., Diaz-Espejo, A., Knight, J. R., Villagarcia, L. and Fernandez, J. E. (2006) Adsorption of water vapor by bare soil in an olive grove in southern Spain. Journal of Hydrometeorology, 7 (5). pp. 1011-1027. ISSN 1525-755X
• Verhoef, A., Fernandez-Galvez, J., Diaz-Espejo, A., Main, B. E. and El-Bishti, M. (2006) The diurnal course of soil moisture as measured by various dielectric sensors: Effects of soil temperature and the implications for evaporation estimates. Journal of Hydrology, 321 (1-4). pp. 147-162. ISSN 0022-1694 doi: 10.1016/j.jhydrol.2005.07.039

2005

• Diaz-Espejo, A. and Verhoef, A. (2005) Effect of heterogeneous soil moisture content on canopy gas exchange. Comparative Biochemistry and Physiology a-Molecular & Integrative Physiology, 141 (3). S306-S307. ISSN 1095-6433
• Verhoef, A. and Campbell, C. L. (2005) Evaporation measurement. In: Anderson, M. G. (ed.) Encyclopedia of Hydrological Sciences. Wiley, Chichester, pp. 589-601.
• Diaz-Espejo, A., Verhoef, A. and Knight, R. (2005) Illustration of micro-scale advection using grid-pattern mini-lysimeters. Agricultural and Forest Meteorology, 129 (1-2). pp. 39-52. ISSN 0168-1923 doi: 10.1016/j.agrformet.2004.12.001

2004

• Verhoef, A. (2004) Remote estimation of thermal inertia and soil heat flux for bare soil. Agricultural and Forest Meteorology, 123 (3-4). pp. 221-236. ISSN 0168-1923 doi: 10.1016/j.agrformet.2003.11.005

This list was generated on Sat May 26 20:12:44 2012 BST.

Earlier Publications

Verhoef A., Allen, S.J., (2000). A SVAT scheme describing energy and CO2 fluxes for multi-component vegetation: calibration and test for a Sahelian savannah. Ecological Modelling 127 245-267.

Wallace, J.S. and Verhoef, A. (2000). Interactions in mixed-plant communities: light, water and carbon dioxide. In: Leaf development and canopy growth. Editors: B. Marshall And J. Roberts. Sheffield Biological Science Series, Sheffield Academic Press, pp 204-250.

Verhoef A., Allen, S.J. and Lloyd, C.R. (1999). Seasonal variation of surface energy balance over two Sahelian surfaces. International Journal of Climatology 19 1267-1277.

Verhoef, A., and Allen, S.J. (1998). The relative importance of surface and aerodynamic resistances in a multi-source energy-CO2 model. Physics and Chemistry of the Earth 23 459-463.

Jacobs, A.F.G., and Verhoef, A. (1997). Soil evaporation from sparse natural vegetation estimated from Sherwood numbers. Journal of Hydrology 188-189 443-452.

Moncrieff, J.B. Monteny, B. Verhoef, A., Friborg, Th., Elbers, J., Kabat, P., de Bruin, H., Soegaard, H., Jarvis, P.G., and Taupin, J.D. (1997). Spatial and temporal variations in net carbon flux during HAPEX-Sahel. Journal of Hydrology 188-189 563-588.

Verhoef, A., De Bruin, H.A.R. and Van den Hurk, B.J.J.M. (1997). Some practical notes on the parameter kB-1 for sparse canopies. Journal of Applied Meteorology 36 560-572.

Verhoef, A., McNaughton, K.G., and Jacobs, A.F.G. (1997). A parameterization of momentum roughness length and displacement height for a wide range of canopy densities. Hydrology and Earth Systems Sciences 1 81-91.

Verhoef A. (1997). The effect of temperature differences between porometer head and leaf surface on stomatal conductance measurements. Plant, Cell & Environment 20 641-646.