Southern California Burned Aridland Stream Data

This dataset contains stream water chemistry and watershed attribute data for 34 sites, in southern California, collected to study how wildfire burn severity and watershed characteristics influence water chemistry. chemistry_discharge.csv (219 records) contains stream chemistry and discharge measurements from repeated sampling across 34 sites between January 2025 and January 2026. Measurements include soluble reactive phosphorus (SRP), non-purgeable organic carbon (NPOC), chloride, sulfate, nitrate, total nitrogen, fluoride, and bromide all measured in µM, alongside discharge (L/s) and specific discharge (L/s/km²). site_attributes.csv (34 records) contains watershed characteristics for 34 sites, including percent of the watershed burned by severity class (low/moderate/high), fire ignition date, biome type (forest or shrub/grassland), max/mean slope, elevation, total watershed area, nitrogen deposition rates, and 2025 and 30-year precipitation and temperature records per site. The two files share a common Site identifier across all 34 sites. Missing values are coded as NA.