SGP/EBBR/E20 - Reprocess: Heat Flow #3 and #5 Incorrect

Soil Heat Flow #3 was incorrect because part of the lead
wire was cut; apparent vandalism.

Soil Heat Flow #5 had been incorrect because of other
causes, but was replaced at the same time as #3.

Recalculate the average soil heat flow (ave_shf),
latent heat flux (e), and sensible heat flux (h) 
using only soil sets 1, 2, and 4, as follows:

ave_shf = (g1 + g2 + g4)/3

e = -(q + ave_shf)/(1 + Bowen)

h = -(q + e + ave_shf)

where q is net radiation and Bowen is the Bowen ratio.

• Surface soil heat flux 3(surface_soil_heat_flux_3)
• Soil heat flow 3, corrected for soil moisture(corr_soil_heat_flow_3)
• Surface latent heat flux(latent_heat_flux)
• Soil heat flow 5, corrected for soil moisture(corr_soil_heat_flow_5)
• Surface soil heat flux 5(surface_soil_heat_flux_5)
• Surface soil heat flux, average of fluxes 1-5(surface_soil_heat_flux_avg)
• Soil heat flow 5(soil_heat_flow_5)
• Soil heat flow 3(soil_heat_flow_3)
• Surface sensible heat flux(sensible_heat_flux)