# HydrodynamicEvent

> **HydrodynamicEvent** = [`SpotMeasurementEvent`](/core/api/type-aliases/SpotMeasurementEvent) \| [`ConstantRateEvent`](/core/api/type-aliases/ConstantRateEvent) \| [`StepDrawdownEvent`](/core/api/type-aliases/StepDrawdownEvent) \| [`AirliftEvent`](/core/api/type-aliases/AirliftEvent) \| [`RecoveryOnlyEvent`](/core/api/type-aliases/RecoveryOnlyEvent) \| [`LoggerSeriesEvent`](/core/api/type-aliases/LoggerSeriesEvent) \| [`HydrodynamicEventBase`](/core/api/type-aliases/HydrodynamicEventBase) & `Record`\<`string`, `unknown`\>