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                        <gco:CharacterString>SYD ALL Unified Stream Gauge Data v01</gco:CharacterString>
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                <gco:CharacterString>## **Abstract** 

The dataset was derived by the Bioregional Assessment Programme from multiple source datasets. The source datasets are identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.


This dataset was created to establish a unified streamflow dataset from the source dataset provided by the BoM. The data will be used for the summarising the streamflow characteristics in the South Sydney Basin context report and surface water and ground water modelling (if required).

## **Dataset History** 

Data were extracted from the raw data .csv format to corresponding unified .csv files for surface water sites within the South Sydney Basin. The process steps are as follows

1.    To move one day backward to match precipitation data since the original 9:00am data is for the period of the current 10:00 am to next 9:00 am

2.    To identify gauge stuck issue

3.    To identify data linear interpolation issue

4.    To regard the issue data as missing data

5.    To generate streamflow data with the unified quality codes: (1: Good; 2: Fair; 3: Poor; 4: Unverified; 5: Non-conforming; 6: Missing)

6.    To separate daily streamflow into baseflow and quick flow using the standard filtering method (Lyne and Hollick (1979)).    

The data was created in MATLAB using scripts and functions.

## **Dataset Citation** 

Bioregional Assessment Programme (2015) SYD ALL Unified Stream Gauge Data v01. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/fbcf2377-fc55-489e-a432-c7fa430efbd6.

## **Dataset Ancestors** 

* **Derived From** [SYD ALL Raw Stream Gauge Data BoM v01](https://data.gov.au/data/dataset/b2cfd949-3ef0-4d2e-98c2-120f11b32be4)

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