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About Institutes Public Relations Technology Transfer Students\International Library Administration
שלח באימייל הדפס
Name: Josef Tanny, Ph.D. (Researcher)
Units: Soil, Water and Environmental SciencesEnvironmental Physics and Irrigation
Research Interests / Job description  
Tel:  972-3-9683410
Cell: 972-50-6220702
Email:  tanai@volcani.agri.gov.il  tanny.josef@gmail.com
Office location:Room 220
Address:Institute of Soil, Water and Environmental Sciences
Agricultural Research Organization, Volcani Center
HaMaccabim Road 68
P.O.B 15159 Rishon LeZion 7528809

Senior Researcher

Research Interests / Job description
Agricultural meteorology; Crop water consumption; Microclimate in agricultural screenhouses and greenhouses; Properties of wind above and inside vegetated canopies; Eddy covariance and other turbulent transport measurements of surface fluxes; Evaporation processes; Natural ventilation of buildings; Double-diffusive convection; Free convection flows; Turbulent flows; Experimental methods in fluid mechanics, meteorology and heat transfer.


  • B. Sc., Mechanical Engineering, Tel Aviv University
  • M. Sc., Fluid Mechanics and Heat Transfer, Tel Aviv University
  • Ph. D., Fluid Mechanics and Heat Transfer, Tel Aviv University

Current and Recent Projects

  1. Application of turbulent transport techniques (eddy covariance, surface renewal, flux variance) for quantitative whole canopy evapotranspiration estimates in large agricultural structures: measurements and theory.
  2. Optimization of covering banana plantations with screens: the effect of the screen texture on the water consumption, microclimate, growth and yield.
  3. Optimization of screen constructions for shading fruit trees.
  4. Evaporation from water reservoirs: direct measurements and modeling.
  5. Improving the evapotranspiration estimation of orchards and vegetable crops covered with screens.
  6. Real-time measurements of water consumption of processing tomato and cotton in the Hula valley using the surface renewal technique.
  7. Effect of vegetation on urban micro-climate.
  8. Application of the Surface Renewal technique for evapotranspiration estimates in small plots in screenhouses and open fields.
  9. Development of crop water requirements and coefficients, for pepper cultivation in screenhouses and greenhouses.
  10. Dynamic changes of shade nets properties and their effects on irrigation: Screenhouse banana as a model crop.
  11. An innovative model for prediction of evapotranspiration and microclimate of screenhouse crops: calibration and validation through field studies.
  12. Modeling crop water requirements for greenhouse pepper during its initial growth.

Current and Past Students

Markus Möller - Diploma Thesis - Dresden University of Technology  (Completed, March 2002).

Vitaly Haslavsky - M. Sc. - Tel Aviv University (Completed, December 2006).

Uri Dicken - Ph. D. - The Hebrew University of Jerusalem (Completed, April 2013).

Michael Bahar - M. Sc. - Tel Aviv University (Completed April 2013).


Rafael Rosa - M. Sc. - The Hebrew University of Jerusalem (Completed, June 2012).


Moran Pirkner - M. Sc. - The Hebrew University of Jerusalem (Completed, March 2013).


Yoni Mekhmandarov - M. Sc. - Tel Aviv University (Completed, May 2014).


Ori Achiman - M. Sc. - The Hebrew University of Jerusalem (Completed, December 2014).


Daniel Hadad - M. Sc. - The Hebrew University of Jerusalem (In progress).


Nitay Heimann - M. Sc. - The Hebrew University of Jerusalem (In progress).


  1. Tanny, J. and Shlien, D.J. (1985).Velocity field measurements of a laminar starting plume, Physics of Fluids 28(4), pp.1027-1032.  picture of plume
  2. Tanny, J. and Tsinober, A. (1988).The dynamics and structure of double-diffusive layers in side wall heating experiments, Journal of Fluid Mechanics, 196, pp.135-156. picture of layers
  3. Tanny, J., and Tsinober, A. (1989). On the Behavior of a System of Double-Diffusive Layers during its Evolution Physics of Fluids A, 1(3), pp. 606-609.
  4. Tanny, J., Kerpel, J., and Tsinober, A. (1989). On the layered structure in a stable solute gradient heated from below, Experiments in Fluids, 8, pp.161-164.
  5. Harel, Z., Tanny, J., and Tsinober, A. (1989). Double Diffusive Phenomena in a Stratified Fluid Close to Saturation, Journal of Physico-Chemical Hydrodynamics (PCH), 11 (5/6), pp.703-713.
  6. Naot, D., Peled, A, and Tanny, J. (1990). Response of Shear Flow Turbulence to Diffusional Electromagnetic Fluctuations, Applied Mathematical Modeling, 14, pp.226-236.
  7. Chai, A., Kit, E., Tanny, J. (1990). Simultaneous Visualization of Density and Velocity Variations in a Stratified Shear Flow, Experiments in Fluids, 9, pp.107-109.
  8. Kerpel, J., Tanny, J., Tsinober, A. (1991) On a Stable Solute Gradient Heated from Below with Prescribed Temperature, Journal of Fluid Mechanics, 223, pp.83-91.
  9. Tanny, J., Chai, A. (1991). Hydrogen Bubble Visualization of a Sheared Density Interface, Experiments in Fluids, 10(5), pp. 296-298.
  10. Kerpel, J., Tanny, J. and Tsinober, A. (1992). On the secondary layers in a stable solute gradient heated from below, Fluid Dynamics Research, 10, pp. 141-147.
  11. Harel, Z., Tanny, J. and Tsinober, A. (1993). The equilibrium solar pond - a laboratory model for the gradient layer, ASME Journal of Solar Energy Engineering,115, pp. 32-36.
  12. Chai, A., Tanny, J. and Kit, E. (1993). Experimental investigation of turbulent entrainment in an annulus with moving sidewalls, Experiments in Fluids, 15, pp. 97-107. picture
  13. Tanny, J., Chai, A. and Kit, E. (1995). On the Law of Turbulent Entrainment across a Density Interface, Fluid Dynamics Research, 15(1), pp. 69-74.
  14. Tanny, J. (1995). Experimental study on the crystallization of a binary melt at the vertical boundary of an enclosure, The International Journal of Heat and Mass Transfer, Vol.38, No.7, pp. 1141-1150.
  15. Tanny, J. and Gotlib, V. A. (1995). Linear stability of a Double Diffusive Layer with Variable Fluid Properties, The International Journal of Heat and Mass Transfer, Vol.38, No.9, pp. 1683-1691.
  16. Tanny, J., Chen, C. C. and Chen, C. F. (1995). Effects of interaction between Marangoni and double-diffusive instabilities, Journal of Fluid Mechanics, Vol. 303, pp. 1-21. Corrigendum published in: J. Fluid Mechanics, Vol.318, pp. 406-407, 1996.
  17. Krizhevsky, L., Cohen, J. and Tanny, J. (1996). Convective and absolute instabilities of a buoyancy-induced flow in a thermally stratified medium, Physics of Fluids, Vol.8, No.4, pp. 971-977.
  18. Teitel, M. and Tanny, J. (1996). A note on energy saving in heated enclosures, Building and Environment, Vol.31, No.6, pp. 537-540.
  19. Teitel, M. and Tanny, J. (1998). Radiative heat transfer from heating tubes in a greenhouse, Journal of Agricultural Engineering Research, Vol. 69, pp. 185-188.
  20. Tanny, J., and Cohen, J. (1998). The mean temperature field of a buoyancy-induced boundary layer adjacent to a vertical plate immersed in a stratified medium, International Journal of Heat and Mass Transfer, Vol. 41 (14), pp. 2125-2130.
  21. Tanny, J. and Teitel, M. (1998). Efficient utilization of energy in buildings and ponds, Applied Thermal Engineering, Vol. 18 (11), pp. 1111-1119.
  22. Tanny, J. and Yakubov, B. (1999). Experimental study of a double diffusive two-layer system in a laterally heated enclosure, International Journal of Heat and Mass Transfer, Vol. 42, No. 19, pp. 3619-3629. picture
  23. Teitel, M. and Tanny, J. (1999). Natural ventilation of greenhouses: experiments and model, Agricultural and Forest Meteorology, 96, pp.59-70.
  24. Ashkenazi, A. and Tanny, J. (2000). Vacuum transparent insulation for visualization of solidification experiments, Experiments in Fluids, 28(5), pp. 482-484.
  25. Tanny, J. and Yakubov, B. (2002). The effect of layer depth on mixing in a double diffusive two-layer system, International Journal of Heat and Mass Transfer, Vol. 45(10), pp. 2101-2105.
  26. Tanny, J. and Cohen, S. (2003). The effect of a small shade net on the properties of wind and selected boundary layer parameters above and within a citrus orchard, Biosystems Engineering, Vol. 84(1), pp. 57-67.
  27. Tanny, J., Cohen, S. and Teitel, M.(2003). Screenhouse microclimate and ventilation: an experimental study, Biosystems Engineering, Vol. 84(3), pp. 331-341.
  28. Kelley, D. E., Fernando, H. J. S., Gargett, A. E., Tanny, J. and Ozsoy, E.(2003). The diffusive regime of double diffusive convection, Progress in Oceanography, Vol. 56, pp. 461-481.
  29. Yahav, S., Straschnow, A., Luger, D., Shinder, D., Tanny, J. and Cohen, S. (2004). Ventilation, sensible heat loss and broiler energy and water balance under harsh environmental conditions Poultry Science,Vol. 83(2), pp. 253-258.
  30. Moller, M., Tanny, J., Li, Y. and Cohen, S. (2004). Measuring and predicting evapotranspiration in an insect-proof screenhouse. Agricultural and Forest Meteorology, 127, 35-51.
  31. Teitel, M. and Tanny, J. (2005). Turbulent transport of scalars through roof windows in a naturally ventilated enclosure. Flow, Turbulence and Combustion, 74, 21-47.
  32. Yahav, S., Shinder, D., Tanny, J. and Cohen, S. (2005). Sensible heat loss: the broiler's paradox. World's Poultry Science Journal, 61, 419-434.
  33. Tanny, J., Dviri, R. Svizher, A. and Cohen, J. (2005). The structure of a double-diffusive interface in a laterally-heated enclosure. International Journal of Heat and Mass Transfer, 48, 4926-4941.
  34. Haslavsky, V., Tanny, J., and Teitel, M. (2005). Interaction between the mixing and displacement modes in a naturally-ventilated enclosure Building and Environment, 41:1755-1761.
  35. Teitel, M, Tanny, J., Ben Yakir, D. and Barak, M. (2005). Airflow patterns through roof openings of a naturally ventilated greenhouse and their effect on insect penetration. Biosystems Engineering, 92(3), 341-353. 
  36. Tanny, J., Haijun, L. and Cohen, S. (2006). Airflow characteristics, energy balance and eddy covariance measurements in a banana screenhouse. Agricultural and Forest Meteorology, 139, (1-2), 105-118.
  37. Yakubov, B., Tanny, J., Moalem-Maron, D. and Brauner, N. (2007). The dynamics and structure of a liquid-solid fluidized bed in inclined pipes. Chemical Engineering Journal , 128 (2-3), 105-114.
  38. Shinder, D., Rusal, M., Tanny, J., Druyan, S. and Yahav, S. (2007). Thermoregulatory responses of chicks (Gallus domesticus) to low ambient temperatures at an early age. Poultry Science, 86 (10), 2200-2209. abstract
  39. Haijun, L., Cohen, S., Tanny, J., and Guan-hua, H. (2007).Transpiration of banana plant measured by Granier method. Chinese Journal of Applied Ecology, 18 (01), 35-40. (In Chinese) abstract
  40. Tanny, J., Haslavsky, V. and Teitel, M. (2008). Airflow and heat flux through the vertical opening of buoyancy-induced naturally-ventilated enclosures. Energy and Buildings, 40, 637-646. abstract
  41. Assouline, S., Tyler, S. W., Tanny, J., Cohen, S., Bou-Zeid, E., Parlange, M. B.and Katul, G. G. (2008). Evaporation from three water bodies of different sizes and climates: measurements and scaling analysis. Advances in Water Resources, 31, 160-172. abstract
  42. Tanny, J., Cohen, S., Assouline, S., Lange, F., Grava, A., Berger, D., Teltch, B. and Parlange, M. B. (2008). Evaporation from a small water reservoir: direct measurements and estimates. Journal of Hydrology, 351, 218-229. abstract
  43. Tanny, J. and Cohen, J. (2008). Revisiting the boundary layer structure used in Craig and Gordon's model of isotopic fractionation in evaporation. Isotopes in Environmental and Health Studies, 44(1), pp. 11-21. abstract
  44. Liu, H.-J., Cohen, S., Tanny, J.,Lemcoff, J. H. and Huang, G.-H. (2008). Transpiration Measurement of Banana (Musa spp. L.) Plants with the Thermal Dissipation Method. Plant and Soil, 308, pp. 227-238. abstract
  45. Teitel, M., Liran, O., Tanny, J., Barak, M. (2008). Wind Driven Ventilation of a Mono-Span Greenhouse with a Rose Crop and Continuous Screened Side Vents and its Effect on Flow Patterns and Microclimate.  Biosystems Engineering, 101, 111-122. abstract
  46. Liu, H.-J., Cohen, S., Tanny, J., Lemcoff, J. H., Huang, G. -H. (2008).
    Estimation of Banana (Musa spp. L.) plant transpiration using a standard 20 cm pan in a greenhouse. Irrigation and Drainage Systems, 22, 311-323. abstract
  47. Tanny, J., Möller, M., Cohen, S. (2009). Aerodynamic properties of boundary layers along screens. Biosystems Engineering, 102, 171-179. abstract
  48. M. Teitel, D. Dvorkin, Y. Haim, Tanny, J., I. Seginer (2009).
    Comparison of measured and simulated flow through screens: Effects of screen inclination and porosity. Biosystems Engineering, 104, 404-416. abstract
  49. Tanny, J., Dicken, U., Cohen, S. (2010). Vertical variation in turbulence statistics and energy balance in a banana screenhouse. Biosystems Engineering, 106(2), 175-187. abstract 
  50. Möller, M., Cohen, S., Pirkner, M., Israeli, Y., and Tanny, J. (2010).
    Transmission of Short-wave Radiation by Agricultural Screens
    Biosystems Engineering, 107(4), 317-327. abstract
  51. Tanny, J., Cohen, S., Berger, D., Teltch, B., Mekhmandarov, Y., Bahar, M., Katul, G. G. and Assouline, S. (2011). Evaporation from a reservoir with fluctuating water level: correcting for limited fetch
    Journal of Hydrology, 404, 146-156. doi:10.1016/j.jhydrol.2011.04.025. abstract  
  52. Siqueira, M., Katul, G., Tanny, J. (2012). The effect of the screen on the mass, momentum, and energy exchange rates of a uniform crop situated in an extensive screenhouse. Boundary-Layer Meteorology, 142 (3), 339-363. abstract
  53. Dicken, U., Cohen, S., Tanny, J.(2013). Effect of plant development on turbulent fluxes of a screenhouse banana plantation.
    Irrigation Science, 31(4), 701-713.
  54. Teitel, M., Derugin, M., Haslavsky, V. and Tanny J. (2012). Light distribution in multi-span gutter-connected greenhouses: The effect of gutters and rrof openings. Biosystems Engineering, 113(2), 120-128. http://dx.doi.org/10.1016/j.biosystemseng.2012.06.014
  55. Rosa, R., Dicken, U. and Tanny, J. (2013). Estimating evapotranspiration from processing tomato using the surface renewal technique. Biosystems Engineering, 114(4), 406-413. http://dx.doi.org/10.1016/j.biosystemseng.2012.06.011
  56. Dicken, U., Cohen, S., and Tanny, J. (2013).
    Examination of the Bowen ratio energy balance technique for evapotranspiration estimates in screenhouses.
    Biosystems Engineering, 114(4), 397-405. http://dx.doi.org/10.1016/j.biosystemseng.2012.11.001
  57. Tanny, J. (2013).
    Microclimate and evapotranspiration of crops covered by agricultural screens: A review. Biosystems Engineering, 114(1), 26-43.
  58. Pirkner, M., Dicken, U., Tanny, J. (2014).
    Penman-Monteith approaches for estimating crop evapotranspiration in screenhouses-a case study with table-grape. International Journal of Biometeorology, 58(5), 725-737. 
  59. Haijun, L., Yan, L., Tanny, J., Ruihao, Z., Guanhua, H. (2014). Quantitative estimation of climate change effects on potential evapotranspiration in Beijing during 1951-2010. Journal of Geographical Sciences, 24(1), 93-112. http://www.geogsci.com/EN/abstract/abstract4555.shtml.
  60. Pirkner, M., Tanny, J., Shapira, O., Teitel, M., Cohen, S., Shahak, Y., Israeli, Y. (2014). The effect of screen type on crop micro-climate, reference evapotranspiration and yield of a screenhouse banana plantation. Scientia Horticulturae, 180, 32-39. http://www.sciencedirect.com/science/article/pii/S0304423814005433
  61. Haijun, L., Cohen, S., Lemcoff, J. H., Israeli, Y., Tanny, J. (2015). Sap flow, canopy conductance and microclimate in a banana screenhouse. Agricultural and Forest Meteorology, 201, 165-175. http://www.sciencedirect.com/science/article/pii/S0168192314002779
  62. Teitel, M., Garcia-Teruel, M., Ibanez, P. F., Tanny, J., Laufer, S., Levi, A., Antler, A. (2015). Airflow characteristics and patterns in screenhouses covered with fine-mesh screens with either roof or roof and side ventilation. Biosystems Engineering, 131, 1-14.   doi:10.1016/j.biosystemseng.2014.12.010
  63. Mekhmandarov, Y., Pirkner, M., Achiman, O., Tanny, J. (2015)
    Application of the surface-renewal technique in two types of screenhouses: sensible heat flux estimates and turbulence characteristics. Agricultural and Forest Meteorology, 203, 229-242.  doi:10.1016/j.agrformet.2015.01.010
  64. Duman, T., Tanny, J., Dicken, U., Siqueira, M. B., Katul, G. (2015). Footprint estimation for multi-layered sources and sinks inside canopies in open and protected environments
    Boundary-Layer Meteorology,155 (2), 229-248, 10.1007/s10546-014-9999-y.    
  65. Rosa, R., Tanny, J. (2015). Surface renewal and eddy covariance measurements of sensible and latent heat fluxes of cotton during two growing seasons. Biosystems Engineering, 136, 149-161.  doi:10.1016/j.biosystemseng.2015.05.012.
  66. Assouline, S., Li, D., Tyler, S., Tanny, J., Cohen, S., Bou-Zeid, E., Parlange, M., Katul, G. (2016). On the variability of the Priestley-Taylor coefficient over water bodies. Water Resources Research, DOI 10.1002/2015WR017504.

  67.    W. Baudoin, A. Nersisyan, A. Shamilov, A. Hodder, D.Gutierrez, S. de Pascale, S. Nicola, N. Gruda, L. Urban, J. Tanny  (Eds.) (2017). Good Agricultural Practices for greenhouse vegetable production in the South East European countries - Principles for sustainable intensification of smallholder farms. Plant Production and Protection Paper 230, Publisher: FAO, ISBN: 978-92-5-109622-2.

  68. Teitel, M., Liang, H., Tanny, J., Garcia-Teruel, M., Levi, A., Ibanez, P., Alon, H. (2017). Effect of roof height on microclimate and plant characteristics in an insect-proof
    screenhouse with impermeable sidewalls
    Biosystems Engineering, 162, 11-19.

  69.    Lensky, N. G., Lensky, I. M., Peretz, A., Gertman, I., Tanny, J., Assouline, S. (2018).
    Diurnal Course of Evaporation from the Dead Sea in Summer: A Distinct Double Peak Induced by Solar Radiation and Night Sea Breeze
    Water resources Research, 54, 2018 (150-160)DOI: 10.1002/2017WR021536

  70. Mor, Z., Assouline, S., Tanny, J., Lensky, I.M. and Lensky, N.G. (2018). Effect of Water Surface Salinity on Evaporation: The Case of a Diluted Buoyant Plume Over the Dead Sea. Water Resour. Res.. Accepted Author Manuscript. doi:10.1002/2017WR021995
Updated on: 06/03/18 12:18
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