Download NWM Retrospect Q Values

Description

Download NWM Retrospect Q Values from http://noaa-nwm-retro-v2.0-zarr-pds.s3.amazonaws.com/ [default, 26 yrs], or s3://noaa-nwm-retrospective-2-1-zarr-pds (42 yrs).

Usage

xr.open_zarr(fsspec.get_mapper(URL), consolidated=True)

Parameters

Parameter Name	Type	Direction	Data Type	Dialog Reference
Retrospect Type	Required	Input	String	Two entries: Retrospect 2.0 (26 years), from January 1993 through December 2018, url = http://noaa-nwm-retro-v2.0-zarr-pds.s3.amazonaws.com Retrospect 2.1 (42 years, from February 1979 through December 2020, ), url = s3://noaa-nwm-retrospective-2-1-zarr-pds
Input Streams	Required	Input	Table View	Data table with COMID field
COMID Field	Required	Input	Field	Name of COMID field.
Start Date	Required	Input	Date	Starting Date of the stream flow (inclusive), e.g., 1/1/1993 Retrospect 2.0 (26 years), from January 1993 through December 2018 Retrospect 2.1 (42 years), from February 1979 through December 2020
End Date	Required	Input	Date	Ending Date of the stream flow (inclusive), e.g., 12/31/2018 Retrospect 2.0 (26 years), from January 1993 through December 2018 Retrospect 2.1 (42 years), from February 1979 through December 2020
Design Flow - Return Period (Years)	Optional	Input	Multiple Value	List of return period (year) to compute the Design Flow, e.g., 2;5;10;25;50;100;500, if no value is provided, the design flow will not be computed.
Output NWM Time Series Table Name	Optional	Input	String	Name of output time series table (Optional), if NOT provided = '', or '#', the downloaded time series Q will not be save to a table.if provided, a time series table (TSTable) will be created at the workspace hosting the input_streams featureclass to save the downloaded time series Q., This TSTable will have the following fields: feature_id: COMID of input_features (river lines). FeatureID - HydroID of the input_features if HydroID field exists in that input_features, if not, same as that of feature_id. TSTime - datetime of the streamflow Q value TSValue - streamflow Q.
Reset Download (IsDone) Status	Optional	Input	Boolean	Reset_IsDone_Status = True, set IsDone=0 on input_streams layer. IsDone field is added to the input_streams layer to record the status of time series data download. isdone=0, Q(t) and return_yr_Qs are not process for that feature. isdone=-1, Q(t) download for that feature is NOT properly finished. isdone=1, Q(t) download for that feature is completed.