7.4. Calculating your own parameters

In these tutorials you can calculate various SUEWS parameters before running the model for the specific site and vegetation type. The parameters discussed here are:

• LAI

• albedo

• surface roughness length and displacement height

• surface conductances.

The Figures below shows the order in which parameters should be derived:

These tutorials are based on the calcuations undertaken in Omidvar et al. (2020).

In this example we use meteorological observations from AmeriFlux (https://ameriflux.lbl.gov/) network. The data required are air temperature, incoming shortwave radiation, upwelling shortwave radiation, station pressure, relative humidity, wind speed, precipitation, net all-wave radiation, sensible heat flux and latent heat flux, ideally storage heat flux (os soil heat flux if a simple surface), and the momentum flux. Wind direction is also very helpful.

Reference

• Omidvar H, T Sun, S Grimmond, D Bilesbach, A Black, J Chen, Z Duan, Z Gao, H Iwata, JP McFadden. Surface [Urban] Energy and Water Balance Scheme in non-urban areas: developments, parameters and performance, (in review)

7.4.1. Leaf Area Index

• LAI

7.4.2. Albedo

• Albedo

7.4.3. Roughmess Parameters

• Roughness related

• SuPy- roughness

7.4.4. Surface Conductance Parameters

• Surface conductance

Tip

1. Stuck? the help page is a useful page to start.

2. Please report workshop manual issues at GitHub Issues. Please go from the page with problem as an automatical link will be inserted. Thanks.