Difference between cumulative and event based rain display on allMeteo.com portal
1. Cumulative rain display setting is used to display accumulated rain amounts over a set period of time. screenshot shows 24 hr (1 day) accumulated rain amounts of extreme torrential rains in the tropics. this plot setting is useful for agriculture where accumulated rain amounts are very important
2. Event rain setting shows the accumulated rain amount during each rain event. A rain event is defined as continuously increasing rain amount. if no additional rain is accumulated during any one 10 minute interval, the plot resets. This plot is useful in detecting down-bursts and short term rain events
QUESTION: What is the difference between Cumulative and Event rain display and why should I choose one over the other?
ANSWER:
Cumulative rain display is useful for agriculture or predicting flooding. Flooding is usually are result of continuous rain amounts over a longer period of time resulting is rising river levels. The user can select a time period that is useful for them to monitor how much rain has accumulated. This setting can be changed in the Graph Preferences on the allMeteo® portal.
Event rain display is useful for monitoring short-term rain events when there is a risk of street flooding, flash floods or canalization overflowing as are used in many smart-cities and resilient city applications. It clearly shows the rain intensity of each individual storm.
Changing rain resolution and plot settings
The MeteoHelix® weather station rain gauge input collects and counts the clicks from a rain gauge mechanism. The rain gauge resolution is dictated by the rain gauge... usually written on the bottom. So that the user can use any rain gauge of their liking, the rain gauge resolution is set in the allMeteo portal as shown in the folloing FAQ artice: