The Assessment for Estuarine Trophic Status (ASSETS) model can be applied by coastal managers, scientists and other interested parties. Please download the software from the link below. This site is being developed to include a registration area, which will allow you to upload data on your bay or estuary to the www.eutro.org website. This will be available at the end of 2008.
The ASSETS software has been developed by NOAA and IMAR, and works only with the MS-Windows operating system. ASSETS is designed to make it easy for a user to enter data for a coastal system, and automatically perform an assessment of trophic status. There are four data entry screens:
The data required for each component can be filled in any particular order, and saved at any time in order to be completed later. The figure below shows the screen for defining Pressure to the estuary, bay or coastal lagoon, known in ASSETS as Influencing Factors
NOAA and IMAR have made every effort to ensure that the ASSETS software will perform appropriately. However, NOAA and IMAR make no express or implied guarantees with respect to suitability of this software, and cannot accept any liability for its use. By clicking on the download link below, you acknowledge these terms of use.
Four versions of ASSETS are available, in English, Chinese, Spanish and Portuguese. The authors are very grateful to Dr. Angel Borja for help with the Spanish version of the software, and Dr. Zhu Changbo for the Chinese version.
Download ASSETS (English version)
Download ASSETS (Chinese version)
Download ASSETS (Spanish version)
Download ASSETS (Portuguese version)
Once you have saved the installation file on your disk, double-click it and follow the installation instructions. One or more sample files will also be written to your disk, in the folder C:\ASSETS Data
Run ASSETS from the Start bar, as shown below:
You may redistribute the software free of charge, and are encouraged to do so. Resale is prohibited. If you find this software useful, or have any doubts or comments on application, you are welcome to contact Dr. Suzanne Bricker at NOAA or Prof. Joao G. Ferreira at IMAR.
| Date | Action | Changes |
| 2008.08.18 | Updated all four language versions of ASSETS - if you downloaded ASSETS prior to this date, please download the new version in your language of choice, uninstall your old version and install this one. All your saved files will load correctly. | Fixed a typo in the salinity zones definition of the Overview screen. Tidal Freshwater Zone upper limit (= Mixing Zone lower limit) was wrongly indicated as 5 psu, and should be 0.5 psu. Calculation of the two zone areas, chlorophyll P90 and dissolved oxygen P10 data, and estimation of the other (heuristic) parameters for the <5 (tidal freshwater) and 5-25 (mixing) zones rather than the (correct) <0.5 and 0.5-25 zones, may have resulted in an incorrect assessment. This will not affect the Pressure, Response, or Seawater Zone state components, but can affect the other two zones and therefore change results (both for State and for the overall ASSETS grade). |
Copyright NOAA and IMAR, 2008, all rights reserved