| Description |
The Thermal Framework is a spatial layer where quinary sub-catchments for all of South Africa have been classified according to their geomorphological zonation (upland or lowland) to assist users in choosing suitable water temperature models. Upland zone comprises Mountain headwater stream, Mountain stream, Transitional and Upper foothill; and lowland zone comprises Lower foothill and Lowland river. Two supporting data fields are also included, both using a five-point score: model accuracy, and thermal resilience of aquatic ecosystem. [SOURCE: Dallas, H.F. and Rivers-Moore, N.A. (2019). Environmental Water Temperature Guidelines for Perennial Rivers in South Africa, Volume 1: Technical Report WRC Report No. TT 799/1/19; and Volume 2: A technical Manual for Setting Water Temperature Targets WRC Report No. TT 799/2/19. Water Research Commission, Pretoria.] |