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? <br />Linear and log regression, including annual relationships as well as monthly relationships (only the <br />annual regressions were scoped but the monthly relationships were implemented because of demands <br />on the modelers) <br />? <br />Flow duration curve <br />? <br />Double mass curve (implementation of this proved to be a bit of a challenge because missing data in <br />the time series caused problems with the time-line of the graph - the solution was to print plotted <br />values to the log file and draw a symbol at missing data points) <br />? <br />XMgr <br />Probability plot for annual totals (it was originally thought that could handle this type of plot <br />but RTi discovered that this was not true, instead, a custom graph window for the probability plot <br />was implemented using previously-developed RTi code). Discussing with the State management <br />team refined the scope such that only annual totals are ranked. <br />? <br />Matrix format similar to the USGS monthly summary matrix <br />tstool <br />Computations performed by include: <br />? <br />Ability to subtract time series <br />? <br />Ability to add time series (not in scope, but useful for modelers) <br />? <br />Ability to set a time series to a constant (not in scope, but useful for modelers) <br />? <br />Ability to scale a time series ( not in scope, but useful for modelers) <br />tstool <br />Features of that were not specifically scoped, but are of interest: <br />? <br />A period of record graph to indicate the periods for which time series have data and a total period <br />showing the overlap of data for time series <br />? <br />tstool <br />Ability to save and retrieve a list of time series expressions composed in <br />? <br />An intermediate area for composing time series expressions, this is the cut and paste area for time <br />series <br />? <br />Status message area, log file, and debugging consistent with other CRDSS tools <br />Subtask 2. Design and implement a tool for displaying the basin-wide changes in streamflows <br />during a window between two runs of StateMod. <br />tstool <br />Initially it was thought that this capability would be included in ; however, because scenario <br />tstool <br />analysis is more closely tied to models than a generic tool like , it was agreed to implement this <br />capability in the StateMod GUI (see Task Memorandum 2.06-1 for details). The budget transfer was <br />handled appropriately. <br />Subtask 3. Develop on-line and hard-copy documentation for the analysis tools <br />. <br />2 <br />a320/taskmems/ 2-11-01.doc 01/03/97 <br />