Search site

Downward diffuse radiation

Downward diffuse radiation is solar energy received at the Earth's surface that has been reflected downwards from clouds, gases, aerosols and other particles.

In detail

The total radiation (or solar energy) received at the Earth's surface consist of two components:

1. Direct radiation and

2. Diffuse radiation.

Diffuse radiation refers to that solar radiation that has entered the atmosphere through reflecting from clouds, gases, aerosols and other particles (as opposed to that which entered the atmosphere directly). 

Find out more

 

  • Downward diffuse radiation is one of the UKCP09 Weather Generator variables, measured in watts per square metre (W/m2).
  • An overview of the outputs from the UKCP09 Weather Generator is provided in  of the Climate Change Projections report.
  • Further details are available in  and  of the Weather Generator report.