NetSTORM is provided as-is for the public. The freeware version performs IDF analyses only on files smaller than 200 KB. Other functions are unrestricted. Comments and questions directed to Mitch Heineman in CDM's Cambridge office are welcome, but no support is promised, other than through CDM. The 1977 HEC-STORM manual describes that program's intent, but is not recommended as a guide to NetSTORM. Refer to the help file or the Introduction to NetSTORM PDF included with the program's installation for help getting started. Both are installed to the software directory (e.g. \program files\netstorm). There are papers on NetSTORM in several ASCE conference proceedings. Google cdm netstorm for other references. To run IDF analyses, first-time users must enter a registration code. NetSTORM generates an alphanumeric response code when these options are run, which needs to be inserted into the registration code program. The returned password is then inserted back into the prompt box of NetSTORM. CDM users can obtain a registration code by following this link to the registration program. Version history 10/08 2008.11 - SWMM Reporter can read subcatchment data from the SWMM report file - New tables Subcatchment Hydrographs and WellData were added in SWMMReporter.mdb file - Read NCDC surface airways data formats as formatted by UCAR (TD-14 and TD-3280) - Removed tooltip option which caused error in ImageImport.ppt 7/08 2008.7 - Read HydroData vertical bar (|) delimited precipitation format - SWMM Reporter moved to separate main menu item, calibration hydrographs improved 2/08 2008.2 - Stochastic disaggregation preserves hourly precipitation fixing 2008.1 error - SWMM Reporter loads multiple files and saves run IDs 1/08 2008.1 - Stochastic hourly disaggregation algorithm has new spiking factor - Customizable annual storm depth histograms added to IDF output - SWMM Reporter also supports SWMM 4 and can append to existing datasets 2007 modifications - previous restrictions removed for SWMM simplification of large files - STORM supports acre-feet as storage and treatment units - new SWMM Reporter menus support SWMM5 calibration and statistical reports - correct error in STORM most efficient size introduced in 2007.3 - STORM multi-run facilitates constant specification - IDF lists percentiles - precipitation by hour of day and month matrix added to IDF statistics - Excel STORM includes first flush parameters - short-duration disaggregation and multi-gage decomposition write gage IDs - paired stochastic daily disaggregation algorithm improved - help pages added for NetSTORM output tables - correct error: STORM multi-runs did not process metric datasets properly after the first iteration - SWMM simplification reads/writes comment lines - Excel STORM uses explicit metric parameter 2006 modifications - allow drag-drop of input file names from Windows onto text boxes - correct errors for SWMM simplication export of unsimplified files, improve dialogs - all daily precipitation disaggregation options now work with all rainfall formats - Rescale/Reformat no longer reports extraneous errors when PC setting for date order differs from m/d/y - Excel STORM uses either rain format - Windows Vista compatibility modifications: default to user's root folder; datasheets use MSOWC 11 - SWMM simplication checks for zero-height conduits - date formats d/m/y and y/m/d recognized - SWMM simplication prioritizes merging manholes with unknown inverts and handles [LOSSES] and [INFLOWS] sections - new feature Read | USHCN daily and monthly datasets - correct error where NetSTORM module was not reading multi-gage rain files properly - new feature Transform | SWMM5 Simplication rationalizes SWMM5 input files. Unlicensed users can only operate on small datasets - correct error reporting storm durations in IDF output for sub-hourly datasets - STORM uses metric or English units - 12 minute data options in disaggregation - value threshold to IDF analysis excludes data points and report averages (e.g. for streamflow analysis) - improve support messages for license expiration and IDF password 2005 modifications - IDF event listings in tabbed columns - max intensity and mean event duration added to monthly and annual statistics in IDF analysis - short-duration disaggregation and rescale/reformat dialogs improved - fix problem where time series values greater than 100 were causing program to crash - statistical summary at end of detailed STORM output improved - output files open at beginning, rather than end of file - minor reformatting of IDF drought and storm statistics - Web hyperlinks added to About dialog - replace final storage reporting with max storage reporting in STORM, storm list in tabbed columns - Internet release - improve Analyze|IDF output. Was not saving results for multiple files. Add password protection for large file analysis - improve Transform|Reformat|Cross-tab. Was not reading sub-hourly files properly - speed-up Transform|Rescale|Pad zeroes function 2004 modifications - default precipitation format changed from gggg yyy mm dd hh to mm/dd/yyyy hh:mm - DLL runs much faster and reliably on Windows XP - new option for computing snowmelt-equivalent precipitation - NetSTORM date data in .dbf files now more easily read in other programs - additional summary information in STORM output including overflow duration - Known issue: running Paired Daily Disaggregation twice in succession causes crash - NCDC-imported data has comment line at top giving gage ID and source file name - computational error corrected in STORM. Internal precision of constant MGTOIN was affecting storage-treatment calcs - new option to select geometric (previously "multi-run") or arithmetic sequencing for STORM multi-scenario runs - error fixed in Sanitary Flow and Percent Capture calculation in NetSTORM monthly summary table - license agreement added to installation package - improved formatting of STORM summary output - NCDC comma-delimited precipitation files can be imported Legal