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Mapping solar radiation and potential evapotranspiration on a DEM

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Created: Jul 16, 2016 at 6:32 p.m.
Last updated: Jul 16, 2016 at 6:41 p.m.
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This Landlab tutorial example using radiation and potential evapotranspiration (PET) components.

It uses DEM as input. Outputs are fields of: PET and solar radiation (incoming, net, and relative). Relative radiation is the ratio of shortwave radiation on a sloped surface to shortwave radiation on a flat surface for a given DOY and latitude. This ratio is used to scale net radiation on a flat surface across a watershed as well as to scale PET across the domain. The component offers four different ways of setting PET on flat surface. Options: PET for flat surface can be set using one of the four methods, presented with the same name used in the instantiation of the component.

Note: To use this tutorial, you should have Landlab (version 1.0) installed on your computer. To install Landlab, please follow the instructions @

To run this tutorial, use the HydroShare 'Open With' function and select 'JupyterHub'. For instructions on how to run an interactive iPython notebook, click here:
For more Landlab tutorials, click here:

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How to Cite

Istanbulluoglu, E., S. Nudurupati, C. Bandaragoda (2016). Mapping solar radiation and potential evapotranspiration on a DEM, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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