Supplemental data and files for a dendritic strontium river isoscape for the Sacramento River Basin, California, USA.

This dataset supports a study that developed a high-resolution dendritic strontium (⁸⁷Sr/⁸⁶Sr) river isoscape for the Sacramento River Basin to improve geographic assignment of salmon natal origins. It includes water chemistry data, spatial stream network models (SSNMs), model predictions, and associated uncertainty estimates.<b>Included supplemental files:</b>Shapefiles for SSNM-predicted ⁸⁷Sr/⁸⁶Sr isoscapes:<br><code>sacriv.anadromous.isoscape</code> (current anadromous habitats)<br><code>sacriv.full.isoscape</code> (full pre-dam river network)Model comparison outputs (summary statistics for Sr concentration and ⁸⁷Sr/⁸⁶Sr):<br><code>sacriv.srML.comp.models</code>, <code>sacriv.srREML.comp.models</code><br><code>sacriv.srsrML.comp.models</code>, <code>sacriv.srsrREML.comp.models</code>Water sample metadata used for SSNM development (<code>sites.csv</code>)SSN object file (<code>sacriv32224.ssn</code>)R script for model processing and reproducibility (<code>cleanSACSSNMcode.R</code>)