Stream thermalscape scenarios for British Columbia, Canada

Water temperature is a key feature of freshwater ecosystems but comprehensive datasets are severely lacking, a limiting factor in research and management of freshwater species and habitats. An existing statistical stream temperature model developed for British Columbia (BC), Canada, was refit to predict August mean stream temperatures, a common index of stream thermal regime also used in thermalscapes developed for the western United States (US). Thermalscapes of predicted August mean stream temperature were produced for 680,000 km of stream network at approximately 400 m intervals. Temperature predictions were averaged for 20-year periods from 1981–2100 to produce 86 scenarios: one for each historical period (i.e., 1981–2000, 2001–2020), and 21 for each future period (i.e., six global climate models and an ensemble average under three representative concentration pathways). The final model performance was consistent with other published regional-scale statistical models (R2 = 0.79, RMS..., Please see Weller et al. (2023) for full methods.
Weller, J.D., R.D. Moore & J.C. Iacarella (2023) Stream thermalscape scenarios for British Columbia, Canada, Canadian Water Resources Journal / Revue canadienne des ressources hydriques, DOI: 10.1080/07011784.2023.2267028, Zipped files (.zip) are stored in an ESRI geodatabase (.gdb) and can be accessed through open-souce GIS software (e.g., QGIS), Data from: Stream Thermalscape Scenarios for British Columbia, Canada, Dryad, Dataset, https://doi.org/10.5061/dryad.bzkh189fk

All thermalscapes (i.e., stream temperature layers) are stored as linear feature classes in 'bc\_stream\_thermalscapes.gdb'.
The geodatabase contains a linear feature class for each major drainage region in British Columbia (BC), Canada, as defined by the BC Freshwater Atlas (FWA).
All feature classes share the same set of attribute fields.

Full details on the development of the stream temperature model ('BC AugTw model') and associated thermalscapes can be found in 'Stream Thermalscape Scenarios for British Columbia, Canada' (Weller et al. 2023).
The thermalscape network is a subset of linear stream network layers from the British Columbia Freshwater Atlas (FWA; information licensed under the Open Government Licence British Columbia):
the network includes only 'main' flow paths, and excludes lakes and reaches draining less than 1km^2.
Linear features and key ...