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SAAS Version 2.1.1 available.
Streamflow Analysis and Assessment Software (SAAS)
This software is being developed as part of my research program focussing on characterisation and classification of flow regimes and hydrology-based environmental flow methods (previous versions were developed in partnership with the Institute for Watershed Science, Trent University). The latter includes an investigation of methods to identify and quantify ecologically-important components of flow regimes, assess their alteration through time with respect to a reference condition, and relate hydrological alteration to changes in ecological condition. The software is being made available to provide broader access to these analysis and assessment methods for those implementing instream or environmental flow methodologies to support informed decisions on sustainable use of water resources. Outcomes of ongoing research will be implemented in future versions of SAAS to increase its functionality, particularly with respect to comparative assessments of flow regimes.
Click on the links below to for screen shots that will give you a flavour of SAAS:
Hydrograph Explorer - Basic
Hydrograph Explorer - Indicators
Flow Analyses - Flood frequency
Flow Analyses - FDCs
Flow Analyses - Baseflow
Flow Analyses - Rate of change
Export
The software is being provided "as-is". Unfortunately we cannot offer in-depth technical support but the software has a well documented manual and is robust enough that you should not encounter any issues.
How to download and unzip the software package
SAAS is free. Making this tool available helps to achieve the goal of building greater understanding of flow regimes and faciltate informed resource management decisions on environmental flows. All that is asked is that you send an email requesting the password to unzip the software. If you want to add information about your intended application, great. Knowing the number of users and the applications will help guide decisions on further development and investment. Your privacy will be respected. For important bug fixes and updates, check back here regularly.
SAAS is programmed using Matlab and compiled as a 'standalone' package. However, it is necessary to have the Matlab Component Runtime (MCR) on your system which is available for download below and requires administrative priveledges to install.
Please DO NOT redistribute this software. If you know of someone else that may find this software useful please direct them to this website to obtain their own copy directly. Installation instructions are included in the reference manual.
System Requirements
- Windows XP
- Minimum 300 MB hard drive space
- Minimum 1024 x 768 monitor resolution (If you have your monitor set for a higher resolution you might want to change it to this when running SAAS for a larger GUI.)
- Minimum 256 MB RAM
- Read/Write privileges to at least one folder on your computer -Administrative privileges during first time installation
System Recommendations
- 1.5 GHz Processor or faster
- 1 GB of RAM or more for large datasets
Suggested Citation
Metcalfe, R.A. and Schmidt, B., 2010. Streamflow Analysis and Assessment Software (SAAS)(V 2.1.1). [Online] Available: http://people.trentu.ca/rmetcalfe/SAAS.html. [Current year, Current day].
Downloading
The following files were posted September 10, 2010
Click here to download SAASv2.1.1 files and manual (~ 5 MB)Click here to download SAASv2.1.1 files, manual, and MCR Installer v 7.11 (~ 176 MB). You require this version of the MCRInstaller if you are upgrading from SAAS Version 2 or earlier.
Click here to request the unzip password and for general SAAS inquiries.
Click here to send error report logs or for programming related inquiries.
Note: When you click on the SAAS executable file a DOS window will open first and must remain open while you are using SAAS. Simply minimise it. A little annoying but perfecly harmless. Nonetheless, we will continue to look for a way to rid us of this little reminder of days gone by.
Version history
Major changes (ie. other than cosmetic) in successive SAAS versions are provided below.
Version 2.1.1 - posted for downloading on September 10, 2010
- Reposted the same version to address a compiling issue that was causing problems in some installations.
Version 2.1.1 - posted for downloading on September 1, 2010
- Fixed a bug that created an error message when viewing some FDCs.
- All error messages now force the closure of SAAS to ensure the integrity of subsequent analyses are not comprimised.
Version 2.1 - posted for downloading on August 12, 2010
- Added the option of generating an annual maximum series from daily data
- Export and Report Tab: Exported filenames include a unique time stamp to avoid overwriting existing files
- All FDC tables standardised to show 17 percentage points (0.01, 0.1, 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 95, 99, 99.9 and 99.99 %)
- Baseflow Tab: Graphic window changed to show boxplots
- Baseflow Tab: First and last month of baseflow time series removed for analyses and display (i.e. to remove spin-up and wind-down effects)
- Rate of Change Tab: Range of variability now shown using a boxplot and corresponding changes to table