With DSSVue, data may be entered, edited, plotted, tabulated, and manipulated with over fifty mathematical functions. In addition to these functions, DSSVue provides several utility functions, such as entering data sets into a database, renaming data sets, copying data sets to other DSS database files, and deleting data sets.
HEC-DSS identifies, stores, and retrieves to data stored in DSS files by pathnames. Each pathname represents a record in the database. Pathnames are separated into six parts labeled "A" through "F." The six parts are delimited by slashes "/".
To identify regular-interval time-series data, the naming conventions for the six pathname parts are:
A - Project or watershed name
B - Location or gage identifier
C - Data variable or parameter, such as FLOW or PRECIP
D - Starting date of the time series data, using the date format DDMmmYYYY
E - Time interval of the data
F - Additional user-defined descriptive information
For each DSS file you open, DSSVue will generate a list of the pathnames associated with the data stored in the file. You can select one or more datasets from the list of pathnames (or catalog) and visualize the data in tabular or graphical form. The list of pathnames can be displayed in a variety of forms—from a list of simple strings, to a list of pathnames separated into parts. You can refine the list by searching for either a string anywhere in the in the pathnames or by filtering by one or more pathname parts.
One form of the pathname list is called the Condensed Catalog. This pathname list displays one row (condensed pathname) for each dataset. A dataset is a set of dss records with the same A, B, C, E, & F parts that spans the full time window of the data identified by those pathname parts stored in the database. The condensed pathname for the dataset displays the D part as the time window of the dataset rather than the start time of the data in a single record of the dataset.
This section provides a brief overview of DSSVue and describe some of the general functions you may need when working with DSS files in ResSim. Refer to the HEC-DSSVue User's Manual for a complete description of all the features and capabilities of DSSVue.