Revision History for U.S. Geological Survey Techniques and Methods 4-F4 By Keith Halford, C. Amanda Garcia, Joe Fenelon, and Benjamin Mirus Advanced Methods for Modeling Water-Levels and Estimating Drawdowns with SeriesSEE, an Excel Add-In ----------------------------------------------------- Posted online December, 2012 ----------------------------------------------------- Revised and reposted July, 2016 The text version was modified. Equation 12 was modified on p. 10, where pi was moved to the left of the bracket near the beginning of the equation. Text was changed on p. 29 to reflect new version numbers for appendixes A and B. Previous version numbers were 1.00 and the new version numbers are 1.2. The differences from version 1.0 to 1.2 were not significant enough to warrant publication until now. Appendixes A and B - SeriesSEE software updated to 1.2 - Partially addressed international date-time issues. Deficiencies remain in WLM utility. Added gap fill with WLM results. Added periodic weighting function. Revised SimpleQ for compatability w/ 2013+ Revised PolyFIT for compatability w/ 2013+ Added export function to split utility. Converts data from SeriesSEE format to 3-column format for databases. Added PIX utility that exports selected hydrographs as GIFs Added Group utility for creating groups of series that groups of series can be changed with a single click.