Airborne thermal infrared (TIR) remote sensing offers unique insights into drivers and ecological effects of riverine thermal diversity across the ‘thermalscape’. Like the riverscape, the thermalscape represents a complete and continuous picture of thermal patterns across multiple temporal and spatial scales. Integrating TIR data with empirical and process-based models and in-situ temperature data helps identify the context of hydrogeological processes in the thermalscape, with the goals of identifying cold-water patches critical to aquatic biota and understanding and restoring thermal heterogeneity in riverine ecosystems. The USGS Next Generation Water Observing System (NGWOS) and Integrated Water Availability Assessments (IWAAs) programs are currently compiling and updating over 1,600 km of existing TIR datasets from intermittent surveys conducted in 1999 to 2024 and continuous in-situ water temperature records across 788 locations spanning 2011 to 2024 in the Willamette River basin, Oregon to inform resource managers of historical stream temperature conditions and identify stream reaches of importance for repeat surveys. These datasets represent records from multiple federal, state, and local agencies, non-profit organizations, and private industry partners and are currently being archived and published in accessible formats in the federal repository, Science Base. This effort also seeks to provide outreach to local, state, federal, and non-governmental organizations to develop and improve understanding of TIR remote sensing techniques and post-processing methods and to explore new applications of TIR data.