Sensible heat flux equation
[DOC File]Solutions to the Exercises
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1.2 An energy flux in equivalent mm y-1 of evaporation is (3600*24*365*10-6/2.5) = 12.6 times that flux expressed in W m-2. Hence for net radiation this is 1,312 mm/y, for evaporation 1,009 mm/y, and for sensible (turbulent) heat flux 240 mm/y. Chapter 2 2.1 b, d
[DOC File]4
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Mean heat transport: But this is just the sensible heat flux! In fact, H is defined at all levels in the ABL, and is the primary mechanism for heat transport through the ABL. H(z=0) is the term in the surface energy budget equation. So how does this affect the thermodynamic equation?
[DOC File]4 - University of Reading
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In the surface energy budget equation, H represents the rate at which the surface warms the atmosphere and E is the rate at which it is moistened. Latent heat flux . Depending on the green fraction, this is much reduced compared to rural areas as there is less vegetation and less water available. Sensible heat flux H
[DOC File]MT303 Experiment E4
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where , , and the over-bar indicates a time-average over the period of measurements. If the measurement is made close to the surface in a near constant-flux layer, then provides an estimate of the surface sensible heat flux H. Given measurements of Rn and G, the surface latent heat flux may then be estimated assuming the SEB equation. (2)
[DOC File]Why isn’t the SEB equation satisfied
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A simple example is the assumption that the heat flux measured by the eddy-correlation method is the same as the surface sensible heat flux H on the field site. However, suppose it is cloudy most of the time, but the sun comes out towards the end of a sampling period.
[DOC File]Practical 4: Measuring the wind profile in the surface layer
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, from which surface sensible heat flux H may be estimated. Software: Excel together with (1) the logpro.xls spreadsheet for reading the anemometer data and (2) the met-mast.xls spreadsheet for reading the data from the Penman mast and applying the Penman-Monteith equation to estimate the variables in the surface energy balance (see Atmospheric ...
[DOC File]TECHNICAL ANNEX - UTCI
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Heat is produced as a result of the metabolic activity required to perform activities. Heat exchange takes place by convection (sensible heat flux), conduction (contact with solids), evaporation (latent heat flux), radiation (long- and short-wave), and respiration (latent and sensible) (Figure 1).
[DOC File]CHAPTER 5 ENERGY, MATTER, AND MOMENTUM …
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turbulent flux of sensible heat (also known as the . sensible heat flux (QH)) and the . turbulent flux of latent heat, or . latent heat flux (QE), and is used to drive atmospheric processes between the surface and the atmosphere above this layer. Unlike energy and moisture, the . vertical flux of horizontal momentum. or . shearing stress (τ
[DOC File]Remote Sensing of the Oceans - Stanford University
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2) The equation for sensible heat flux between the ocean and atmosphere is: Sensible heat flux = rho*Cp*Cs*U10(Ts-Ta) Where. rho. is the air density (1.5 kg m-3) Cp. is the specific heat capacity of air (1030 J kg-1 K-1) Cs. is the sensible heat transfer coefficient (1e-3) U10. is the wind speed at 10 above sea level (10 m s-1)
[DOC File]Paper No: 200000
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where γ is the psychometric constant; ∆T is the difference in air temperature at two heights (T1 – T2); ∆e is the difference in vapor pressure at the two heights (e1 – e2); and H is the sensible heat flux. The latent-heat flux (λET) is estimated by the following equation: (6)
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