ABSTRACT
This chapter is largely based on the work of Muneer and Kinghorn (1998), Kinghorn (1999), Muneer et al. (2000) and Claywell (2003).
8.1 International Daylight Measurement Programme
The Commission International de l’E´clairage (CIE) declared the year 1991 as the International Daylight Measurement Year (IDMY). As a result, new activity commenced in the field of daylight measurement on a worldwide scale. This activity was later named the International Daylight Measurement Programme (IDMP). In the UK as a result of the CIE call, horizontal and vertical illuminance and irradiance (solar radiation) measurements have been carried out for four sites, i.e. Garston, Manchester, Sheffield and Edinburgh. The measurements at Edinburgh were respectively undertaken at Napier and Heriot-Watt universities. In Japan daylight data were recorded at 14 stations. Details of IDMP stations throughout the world are shown in Table A1.
