What is a Rainfall Data?
Rainfall data generally are collected using electronic data loggers that measure the rainfall in 0.01-inch increments every 15 minutes using either a tipping-bucket rain gauge or a collection well gauge. Twenty-four-hour rainfall totals are tabulated and presented.
Where Can I Get Rainfall Data In South Africa?
You can find up-to-date rainfall maps as well as links to rainfall data on Drought SA. Weather SA maintains historical rainfall maps as well as daily and ten-day rainfall data .
Where in South Africa has the most rainfall?
The area with the highest rainfall in South Africa is generally found along the eastern coastal region, particularly in the province of KwaZulu-Natal. The region experiences a subtropical climate, which is influenced by the warm Indian Ocean currents.
What zone is the rainfall in South Africa?
Rain falls from October to February and is often heavy, with the amount of precipitation increasing from west to east. The summer and winter rainfall region is the Eastern Cape. The arid regions are in the north-west, with the driest areas being the north-west coast.
How is rainfall measured in South Africa?
The rain accumulated in the bucket of the rain gauge is poured into a specially calibrated measuring glass and the millimetre reading is recorded, whereafter the water is discarded.
The rainfall measured between 08:00 SAST yesterday and 08:00 SAST today is recorded against yesterday’s date on the database.
How is rainfall data measured?
Instruments. The standard instrument for the measurement of rainfall is the 203mm (8 inch) rain gauge.
This is essentially a circular funnel with a diameter of 203mm which collects the rain into a graduated and calibrated cylinder. The measuring cylinder can record up to 25mm of precipitation.