Advances in Simulating Radiative Transfer in Complex Environments

Accurate simulation of radiative transfer is a very important aspect in climate modeling. For microclimate models particular, it not only to simulate primary but also secondary fluxes great detail, i.e., emitted longwave and reflected shortwave radiation. As there are always limitations regarding computational effort memory, these commonly implemented using simplified approaches. To overcome simplifications and, thus, increase modeling accuracy, new radiation scheme called indexed view sphere was introduced into the model ENVI-met. This actually accounts for contributions objects that seen by each grid cell. In order evaluate advantages scheme, compared against formerly used averaged factor scheme. The comparison complex realistic urban environment demonstrated improved accuracy plausibility fluxes. It, however, yields an increased demand memory store facets higher simulating should, overturn this shortcoming most studies, as more detailed knowledge local microclimatic conditions general eventually thermal comfort can be gained.