An Approach for Calculation of Turbulent Transfer Coefficient for Momentum inside Vegetation Canopies
Апстракт
A method for calculating the profile of turbulent transfer coefficient for momentum inside a vegetation canopy for use in land surface schemes is presented. It is done through the following steps. First, an equation for the turbulent transfer coefficient for momentum inside a vegetation canopy using the “sandwich”
approach for its representation is derived. Second, it is examined analytically to determine whether its solution is always positive. Third, the equation for the turbulent transfer coefficient is solved numerically, using an iterative procedure for calculating the attenuation factor in the expression for the wind speed inside
a vegetation canopy that is assumed to be a linear combination of an exponential function and a logarithmic function. The proposed method is tested using 1) the observations for the wind profiles in a Japanese larch plantation and a pine forest and 2) the outputs for surface fluxes and total soil water content obtained by
the Land–Air Parameterization... Scheme (LAPS) with the forcing data and observations in a soybean field at the Caumont site in France during the 1986 growing season. Also, a test is performed that compares the proposed method with the method for calculating the turbulent transfer coefficients for momentum inside a vegetation canopy commonly used in land surface schemes.
Извор:
Journal of Applied Meteorology and Climatology, 2006, 45, 2, 348-356Издавач:
- Boston, USA : American Meteorological Society
Финансирање / пројекти:
- Моделирање и нумеричке симулације сложених физичких система (RS-MESTD-MPN2006-2010-141035)
DOI: 10.1175/JAM2318.1
ISSN: 1558-8432 (Print); 1558-8424 (Online);
WoS: 000237244000009
Scopus: 2-s2.0-33646587707
Институција/група
Географски институт „Јован Цвијић“ САНУ / Geographical Institute Jovan Cvijić SASATY - JOUR AU - Mihailovic, Dragutin T. AU - Lalic, Branislava AU - Eitzinger, Josef AU - Malinovic, Slavica AU - Arsenic, Ilija PY - 2006 UR - https://dais.sanu.ac.rs/123456789/13856 AB - A method for calculating the profile of turbulent transfer coefficient for momentum inside a vegetation canopy for use in land surface schemes is presented. It is done through the following steps. First, an equation for the turbulent transfer coefficient for momentum inside a vegetation canopy using the “sandwich” approach for its representation is derived. Second, it is examined analytically to determine whether its solution is always positive. Third, the equation for the turbulent transfer coefficient is solved numerically, using an iterative procedure for calculating the attenuation factor in the expression for the wind speed inside a vegetation canopy that is assumed to be a linear combination of an exponential function and a logarithmic function. The proposed method is tested using 1) the observations for the wind profiles in a Japanese larch plantation and a pine forest and 2) the outputs for surface fluxes and total soil water content obtained by the Land–Air Parameterization Scheme (LAPS) with the forcing data and observations in a soybean field at the Caumont site in France during the 1986 growing season. Also, a test is performed that compares the proposed method with the method for calculating the turbulent transfer coefficients for momentum inside a vegetation canopy commonly used in land surface schemes. PB - Boston, USA : American Meteorological Society T2 - Journal of Applied Meteorology and Climatology T1 - An Approach for Calculation of Turbulent Transfer Coefficient for Momentum inside Vegetation Canopies SP - 348 EP - 356 VL - 45 IS - 2 DO - 10.1175/JAM2318.1 UR - https://hdl.handle.net/21.15107/rcub_dais_13856 ER -
@article{ author = "Mihailovic, Dragutin T. and Lalic, Branislava and Eitzinger, Josef and Malinovic, Slavica and Arsenic, Ilija", year = "2006", abstract = "A method for calculating the profile of turbulent transfer coefficient for momentum inside a vegetation canopy for use in land surface schemes is presented. It is done through the following steps. First, an equation for the turbulent transfer coefficient for momentum inside a vegetation canopy using the “sandwich” approach for its representation is derived. Second, it is examined analytically to determine whether its solution is always positive. Third, the equation for the turbulent transfer coefficient is solved numerically, using an iterative procedure for calculating the attenuation factor in the expression for the wind speed inside a vegetation canopy that is assumed to be a linear combination of an exponential function and a logarithmic function. The proposed method is tested using 1) the observations for the wind profiles in a Japanese larch plantation and a pine forest and 2) the outputs for surface fluxes and total soil water content obtained by the Land–Air Parameterization Scheme (LAPS) with the forcing data and observations in a soybean field at the Caumont site in France during the 1986 growing season. Also, a test is performed that compares the proposed method with the method for calculating the turbulent transfer coefficients for momentum inside a vegetation canopy commonly used in land surface schemes.", publisher = "Boston, USA : American Meteorological Society", journal = "Journal of Applied Meteorology and Climatology", title = "An Approach for Calculation of Turbulent Transfer Coefficient for Momentum inside Vegetation Canopies", pages = "348-356", volume = "45", number = "2", doi = "10.1175/JAM2318.1", url = "https://hdl.handle.net/21.15107/rcub_dais_13856" }
Mihailovic, D. T., Lalic, B., Eitzinger, J., Malinovic, S.,& Arsenic, I.. (2006). An Approach for Calculation of Turbulent Transfer Coefficient for Momentum inside Vegetation Canopies. in Journal of Applied Meteorology and Climatology Boston, USA : American Meteorological Society., 45(2), 348-356. https://doi.org/10.1175/JAM2318.1 https://hdl.handle.net/21.15107/rcub_dais_13856
Mihailovic DT, Lalic B, Eitzinger J, Malinovic S, Arsenic I. An Approach for Calculation of Turbulent Transfer Coefficient for Momentum inside Vegetation Canopies. in Journal of Applied Meteorology and Climatology. 2006;45(2):348-356. doi:10.1175/JAM2318.1 https://hdl.handle.net/21.15107/rcub_dais_13856 .
Mihailovic, Dragutin T., Lalic, Branislava, Eitzinger, Josef, Malinovic, Slavica, Arsenic, Ilija, "An Approach for Calculation of Turbulent Transfer Coefficient for Momentum inside Vegetation Canopies" in Journal of Applied Meteorology and Climatology, 45, no. 2 (2006):348-356, https://doi.org/10.1175/JAM2318.1 ., https://hdl.handle.net/21.15107/rcub_dais_13856 .