LinkedIn LinkedIn Youtube Youtube Home Services Tools News Careers About ESSA Contact Us Specializing in environmental sciences and decision support Environmental & Cumulative Effects Assessment Climate Change Adaptation & Disaster Risk Reduction Aquatic Species at Risk & Water Resource Management Terrestrial Ecology & Forest Resource Management We bring together people, science and analytical tools to sustain healthy ecosystems and human communities. As an expertise based firm, we seek to help clients facing tough, emerging problems. Our work is based on a neutral, thorough evaluation of evidence. ESSA News Welcome to our new website! August 14th, 2014 The great thing about having been around ESSA for 34 of our 35 years is […] ESSA and The Nature Conservancy present lessons of Ecological Flows Tool to Delta Independent Science Board – advocate greater ecological flexibility August 1st, 2014 Sacramento: Clint Alexander, ESSA’s lead scientist for ecological water resources and Ryan Luster, Sacramento […] British Columbia Ministry of Environment released report on Kitimat Airshed Emissions Effects Assessment July 23rd, 2014 Vancouver: David Marmorek, ESSA’s President, assisted BC Minister of Environment Ms. Mary Polak in […] Industry News One Request to Interview Scientist = 16 Government Officials, 110 Pages of Email, Restricted “Agreed Answers” September 10th, 2014 The Canadian Press VANCOUVER – It was a story about rock snot. And if there’s a […] ESSA Tools Ecological Flows Tool The Ecological Flows Tool (EFT) is a database-centered decision support system for linking flow, gravel and channel management actions to changes in the physical habitats for selected species of concern.Learn More River Bathymetry Toolkit The River Bathymetry Toolkit (RBT) is a suite of GIS tools that work within the ESRI ArcGIS Desktop software which allows users to describe and measure river channels using high resolution digital elevation models (DEM).Learn More Okanagan Fish Water Management Tool The Okanagan Fish Water Management Tool (OKFWM) is an internet-accessible model developed by ESSA to guide real-time water release decisions at Okanagan Lake Dam.Learn More Vegetation Dynamics Development Tool Vegetation Dynamics Development Tool (VDDT) provides a state and transition landscape modelling framework for examining the role of various disturbance agents and management actions in vegetation change.Learn More Home Services Tools News Careers About ESSA Contact Us © 2014 ESSA Technologies Ltd.