Remotely sensed 3 h rainfalls from 2000 will be corrected and disaggregated Completion: March 2016. A.1.1.4 Updated sub-daily M 1-5 2014 100 - 500 Collate and error 3 Assemble rainfall database check continuously existing short for South Africa recorded rainfall data duration rainfall data (L) Extreme rainfall Update envelope H 1 2014 < 100 Current SANCOLD No update since 7 (T > 200 year) of maximum guidelines for Wits HRU 1/71 rainfall (Probable estimation of PMF report Maximum are dependent on Precipitation) PMP, need to update these for use until AEP related floods used for Recommended and Safety Evaluation floods for dam spillways Estimate design H 1-3 2014 > 500 recommendations to estimate design 4 rainfall for T>200 move to high return rainfall up to T=200 years period floods for dam years. Need to designs to T > 200 extend this to years, hence need to T=106 years estimate design rainfall for T > 200 years
Remotely sensed 3 h rainfalls from 2000 will be corrected and disaggregated Completion: March 2016. A.1.1.4 Assemble existing short duration rainfall data (L) Updated sub-daily rainfall database for South Africa M 1-5 2014 100 - 500 Collate and error check continuously recorded rainfall data 3 Extreme rainfall (T > 200 year) Update envelope of maximum rainfall (Probable Maximum Precipitation) H 1 2014 < 100 Current SANCOLD guidelines for estimation of PMF are dependent on PMP, need to update these for use until AEP related floods used for Recommended and Safety Evaluation floods for dam spillways No update since Wits HRU 1/71 report 7 Estimate design rainfall for T>200 years H 1-3 2014 > 500 recommendations to move to high return period floods for dam designs to T > 200 years, hence need to estimate design rainfall for T > 200 years estimate design rainfall up to T=200 years. Need to extend this to T=106 years 4
NFSP_SANCOLD_2014.docx