New tree‐level temperature response curves document sensitivity of tree growth to high temperatures across a US‐wide climatic gradient

The data used in this paper have been compiled from freely and publicly available sources. Data processing is described in detail in the associated paper. Processing of tree ring data relies in part on Zhao et al. 2018 "The International Tree‐Ring Data Bank (ITRDB) revisited: Data availability and global ecological representativity". Tree ring width data and associated metadata come from the International Tree-Ring Data Bank (ITRDB; https://www.ncei.noaa.gov/access/paleo-search, accessed February 2019). I use a subset of these data, which covers the contiguous United States, and years 1903 to 2016. Temperature and precipitation data are based on the "Parameter-Elevation Regressions on Independent Slopes Model" (PRISM), which covers the contiguous US at a 4 km resolution. These data come from a version of PRISM, which is adapted to panel analyses (http://www.columbia.edu/~ws2162/links.html). Drought data come from the Standardised Precipitation-Evapotranspiration Index (SPEI) database (https://spei.csic.es/database.html). Ecoregion information come from the Köppen-Geiger climate classification (http://koeppen-geiger.vu-wien.ac.at/present.htm).