Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 3 of 3

Full-Text Articles in Physical Sciences and Mathematics

Developing A Nearshore Geospatial Framework For Recovery Assessment And Planning, Jennifer Burke, Stacy Vynne Apr 2018

Developing A Nearshore Geospatial Framework For Recovery Assessment And Planning, Jennifer Burke, Stacy Vynne

Salish Sea Ecosystem Conference

As part of the Beach Strategies project developed by the Estuary and Salmon Restoration Program (ESRP), Puget Sound Partnership, ESRP, and Coastal Geologic Services (CGS) developed a geospatial framework to integrate nearshore data for analyses. The Beach Strategies project developed a geodatabase to inform restoration and protection planning. The Nearshore Geospatial Framework was designed as a companion structure to the Beach Strategies data to facilitate consistent and scalable units of analysis across the region-wide dataset. The framework is a series of consistent polygons with variable characteristics in both aquatic and inland areas of the nearshore. The polygon structures include variable …


Assessing The Impacts Of Toxic Mixtures Over A Broad Geographic Scale: Challenges And First Steps, David Hugh Baldwin, Julann A. Spromberg, Jessica I. Lundin, Cathy A. Laetz, Nathaniel L. Scholz Apr 2018

Assessing The Impacts Of Toxic Mixtures Over A Broad Geographic Scale: Challenges And First Steps, David Hugh Baldwin, Julann A. Spromberg, Jessica I. Lundin, Cathy A. Laetz, Nathaniel L. Scholz

Salish Sea Ecosystem Conference

Assessing the risks posed by chemical mixtures is a complex process. Ideally, details are available on exposure (e.g. which chemicals and what concentrations) and effects (e.g. mechanisms of action and toxicity data). This can be challenging even for a single location and time such as a lab or field site. Ecological risk assessments often need to cover much larger scales such as an entire watershed or a wide-ranging species. This increase in scale substantially increases the complexity. Thousands of chemicals in use lead to potential environmental mixture exposures, including pesticide runoff and municipal wastewater discharges. At the landscape scale the …


Why Georeferencing Matters: Introducing A Practical Protocol To Prepare Species Occurrence Records For Spatial Analysis, Trevor D.S. Bloom, Aquila Flower, Eric G. Dechaine Jan 2018

Why Georeferencing Matters: Introducing A Practical Protocol To Prepare Species Occurrence Records For Spatial Analysis, Trevor D.S. Bloom, Aquila Flower, Eric G. Dechaine

Environmental Sciences Faculty and Staff Publications

Species Distribution Models (SDMs) are widely used to understand environmental controls on species’ ranges and to forecast species range shifts in response to climatic changes. The quality of input data is crucial determinant of the model’s accuracy. While museum records can be useful sources of presence data for many species, they do not always include accurate geographic coordinates. Therefore, actual locations must be verified through the process of georeferencing. We present a practical, standardized manual georeferencing method (the Spatial Analysis Georeferencing Accuracy (SAGA) protocol) to classify the spatial resolution of museum records specifically for building improved SDMs. We used the …