Radiative Cooling Potential Maps for Spain

摘要

Radiative cooling is a novel technology which provides cooling power by emitting thermal radiation using the sky as a heat sink. Under proper conditions, net radiative cooling power of an ideal surface can be expressed as the difference between the emitted longwave radiation of a black surface minus the infrared radiation emitted by the atmosphere and absorbed by the surface. This atmospheric radiation depends on the local conditions. A continuous map of the radiative cooling potential in Spain has been prepared using two interpolation methods: Inversed Distance Weighted (IDW) and Kriging. The results obtained showed an average cooling potential of 55-60 W/m~2. Climate change, under different IPCC scenarios, do not have a big impact in the average capacity to do radiative cooling in Spain.