“…However, it can be challenging to analyze recharge ratios over short timescales. For example, recharge ratios are not defined during precipitation‐free periods, and identification of individual storms can be subjective in implementation (Grande et al.,
2022, e.g.). To overcome this, it is advantageous to analyze a cumulative form of recharge versus precipitation:
where the Σ subscript indicates the running sum of the flux, and where the instantaneous recharge ratio can be calculated as the derivative:
…”