Non-Point Source Model Development Tool / News: Recent posts

New version of WOOOMM has been released on the testing site, with the beginning of a new family of functions being featured ( http://deq1.bse.vt.edu/wooomm/ ). This family of functions offers "Realtime Online Data Analysis", basically allowing you to perform queries on the fly on recently run models without having to download the data onto your system and import it into excel or access. This allows you to do ad-hoc queries, for example, if you use QueryWizard components to generate model reports, you can make tweaks to these queries and try them out online without re-running the model. So, for example, say you want to know the monthly minimum flow for some period of time during your most recent run, and you want it quickly. Just go to your channel object, hit the "Data Analysis" panel, and select a query with month, and flow and select the function "min" for the flow column, and hit "execute" button. The query will spit you’re the results from the most recent model run back to you in seconds.... read more

Version 0.8 is a major release of the Web Hydrology Objects, containing a number of feature enhancements, as well as a pre-configured example data set.

Major Features:
- Robust model component linking allows you to connect outputs and properties of one modeling object to another, similar in behavior to those in dynamic systems modeling environments such as Stella and PowerSim.
- a fully functional web interface for storing and editing model components and scenarios
- user authentication modules and scenario storage and access control
- integration of libraries for pulling USGS data, NOAA data and HSPF UCI files into modeling components
- User-defined equation editor on modeling objects
- BASH installation script to create underlying databases, and load sample data

A library to allow dynamic evaluation of simple mathematical equations has been added to the hydro objects library. Also added are the functionality of lookup tables in the modelObject (both exact match and interpolated lookup tables). The file demo_hsi.php shows this capability by creating a Habitat Suitability Index calclulation for smallmouth bass, based on the work of the United States Fish and Wildlife Server (USWFS). This demo uses both types of lookup tables, relationships between hydro objects, and user defined equations to compute the habitat suitability index. An online demo of this routine can be found at:
http://soulswimmer.dynalias.net/models/wsdemo/demo_hsi.php

I have uploaded a new set of files onto the NPSource project download area (http://sourceforge.net/projects/npsource/ - the package name is "Web-Hydro Objects") which contain a new web-enabled hydrologic modeling library written in PHP. The libraries contain object-oriented web hydro modeling capabilities, as well as routines to automatically retrieve USGS monitoring data.

A simple demo which models the effects of water withdrawals from a stream can be run from my server at:
http://soulswimmer.dynalias.net/models/wsdemo/demo.php ... read more