Chance of Showers Time Series

Interactive time series plots in Plotly

Intro

Below is a sample of the pressure data collected by the Chance of Showers project in November 2023. The plots are interactive, please explore!

Raw analog to digital converter (ADC) values

The data acquisition (DAQ) system saves the raw pressure data from the analog to digital converter (ADC) as an integer between 0 and 65472. Note that occasionally a water hammer will increase the pressure above its steady state value, marked by the orange 100% reference line, with a subsequent decay on the order of 10 minutes. When water is flowing at the pressure sensor, the data is shown with an open purple marker. Using water reduces the pressure slightly under normal conditions, and abruptly ends overpressure events.

Normalized values

To clean the data before fitting any models, we rescale the values to 0 and 1 between the steady state extrema. Any values that are outside the normalization range are capped.