Darius Semmens
Darius Semmens is a Research Physical Scientist with the Geosciences and Environmental Change Science Center
His current research interests include the development of new methods and tools for the assessment and valuation of ecosystem goods and services - the specific benefits that we derive from nature. More specifically, his work involves developing methods and tools that can account for the spatial and temporal dynamics of service production and incorporate that and other information into more rigorous analyses of the tradeoffs associated with landscape management. Darius' current work includes cultural ecosystem services modeling with the Social Values for Ecosystem Services (SolVES) tool, quantifying ecosystem service flows from migratory species to inform cross-jurisdictional management and conservation, and multi-resource analysis for energy and minerals.
Professional Experience
2008: Research Physical Scientist with the USGS
2004-2007: Postdoctoral fellow with the U.S. Environmental Protection Agency, Office of Research and Development
Education and Certifications
2004: University of Arizona: Ph.D. in Watershed Management (minor in Remote Sensing and Spatial Analysis)
1998: Northern Arizona University: M.S. in Geology (emphasis in Geomorphology)
1995: University of Minnesota: B.S. in Geology
Science and Products
Social values for ecosystem services (SolVES): Documentation and user manual, version 2.0
KINEROS2/AGWA: Model use, calibration and validation
A GIS application for assessing, mapping, and quantifying the social values of ecosystem services
Accounting for the ecosystem services of migratory species: Quantifying migration support and spatial subsidies
The use of scenario analysis to assess water ecosystem services in response to future land use change in the Willamette River Basin, Oregon
Assessment of goods and valuation of ecosystem services (AGAVES) San Pedro River Basin, United States and Mexico
Social values for ecosystem services (SolVES): A GIS application for assessing, mapping, and quantifying the social values of ecosystem services-Documentation and user manual, version 1.0
Flood hazard awareness and hydrologic modelling at Ambos Nogales, United States–Mexico border
Planning for an uncertain future - Monitoring, integration, and adaptation
Using a coupled groundwater/surface-water model to predict climate-change impacts to lakes in the Trout Lake Watershed, northern Wisconsin
Evaluating hydrological response to forecasted land-use change—scenario testing with the automated geospatial watershed assessment (AGWA) tool
A formal framework for scenario development in support of environmental decision-making
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Social values for ecosystem services (SolVES): Documentation and user manual, version 2.0
KINEROS2/AGWA: Model use, calibration and validation
A GIS application for assessing, mapping, and quantifying the social values of ecosystem services
Accounting for the ecosystem services of migratory species: Quantifying migration support and spatial subsidies
The use of scenario analysis to assess water ecosystem services in response to future land use change in the Willamette River Basin, Oregon
Assessment of goods and valuation of ecosystem services (AGAVES) San Pedro River Basin, United States and Mexico
Social values for ecosystem services (SolVES): A GIS application for assessing, mapping, and quantifying the social values of ecosystem services-Documentation and user manual, version 1.0
Flood hazard awareness and hydrologic modelling at Ambos Nogales, United States–Mexico border
Planning for an uncertain future - Monitoring, integration, and adaptation
Using a coupled groundwater/surface-water model to predict climate-change impacts to lakes in the Trout Lake Watershed, northern Wisconsin
Evaluating hydrological response to forecasted land-use change—scenario testing with the automated geospatial watershed assessment (AGWA) tool
A formal framework for scenario development in support of environmental decision-making
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.