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+ External Historical
+ External Forecasting
+ Simulated Historical
+ Simulated Forecasting
+ Temporary
+ Temporary External Forecast (since 2017.01)

There are significant differences in how each of these time series are handled.

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Info

The time series type simulated historical should only be assigned to time series that have a relation to a previous time series through a model state. In all other cases, the time series is independent, and should be allocated simulated forecasting as time series type. 

Temporary time series

Temporary time series are deleted at the end of a run. They are only visible for the running task run.

Temporary External Forecast time series (since 2017.01)

This replaces an external forecast with synch level 9 with a parameter that is only used in combination with synch level 9 and not in the final result. 
Temporary time series are deleted at the end of a run. They are only visible for the running task run. You can now use the same parameter as used in the final result

Time Series Sets

Any module in DELFT-FEWS that requires data from the database, or produces data that must be stored in the database, does so through the use of a complex data type referred to as the Time Series Set. A time series set can be compared to a query that is run against the database. It contains all the keys to uniquely identify the set of data to be retrieved.

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