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Penman Analysis data for the 16 th June 2008

Penman Analysis data for the 16 th June 2008. Group A2 David Sherman Ben Thomas Matthew Weston. Net Radiance (Rn) = 125.58 Wm -2 Sensible Heat Flux (H) = 17.15 Wm -2. Ground Heat Flux (G) = 34.99 Wm -2 Latent Heat Flux (λE) = 73.44 Wm -2. (Rn-G) 125.58-34.99 = 90.59

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Penman Analysis data for the 16 th June 2008

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  1. Penman Analysis data for the 16th June 2008 Group A2 David Sherman Ben Thomas Matthew Weston

  2. Net Radiance (Rn) = 125.58 Wm-2 Sensible Heat Flux (H) = 17.15 Wm-2 • Ground Heat Flux (G) = 34.99 Wm-2 • Latent Heat Flux (λE) = 73.44 Wm-2 (Rn-G) 125.58-34.99 = 90.59 (H+ λE) 17.15+73.44 = 90.59 0

  3. Temperature (Td) = 17.23 ˚C • Dew point Temperature (Tdew) = 3.60 ˚C

  4. H/Rn= 0.136565 Bowen Ratio (B) = 0.233521 • Canopy Resistance (rsc) = 60 sm-1 • Roughness Length (z0) = 0.050 m • Friction Velocity (U*) = 0.138 m/s

  5. Increasing the value of Canopy Resistance and / or Roughness Length • Latent Heat Flux tends to drop as the day progresses as the air becomes warmer and Relative Humidity falls.

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