The Data Validation Editor allows you to select specific time series locations for validation (selected icons) or to use pre-defined validation lists (list mode). Before manually validating data, you can also filter the chosen time series data sets so that only those time series data sets with identified problems will be displayed. Additionally, the Data Validation Editor offers tools for both text-entry editing and graphical editing. With the former, you enter corrected values in a table; with the latter, you use your mouse to graphically change values in the plotted data.

Figure 1 Data Validation Editor

The Selected Data Set list (Figure 1) allows you to select the specific time series data set you wish to view or edit.

Figure 2 Selected Data Set List

By default, the Data Validation Editor only allows you to edit data that is marked as being rejected, questionable, or missing. The R (rejected), Q (questionable), and M (missing) fields (Figure 2) are related to the quality flags of the data and show counts of the data values in the Original column of the tabular data area for the selected dataset and time window. If you need to edit data the data, select Edit All Data, or from the Options menu, click Edit All Data.

Figure 3 Data Quality Flags

To compare time series datasets from your validation lists (Acquisition Module), select Show Comparison in Plot, or from the View menu, click Show Comparison Data.

To save the revised data values to the CWMS database, click , or from the File menu, click Save. To undo all of the changes you have made to either the graphical or tabular data areas since your last Save, click . (Note: Once you click Save, you cannot undo any of your previous changes.)