Fig. 4: Time series of projected trends in RxDays across the WUS, 1981–2060.
From: Climate change is narrowing and shifting prescribed fire windows in western United States
Time series depicting the change in the number of observed RxDays across the western United States (WUS) on an annual (a) and seasonal (b–e) basis. Black curves represent the WUS-wide ___domain average values; magenta, red, and yellow curves represent the sub-regionally averaged values for the Pacific Southwest, Northern Tier, and Four Corners portions subsets, respectively. All plotted data is smoothed on a 5-year running mean basis, and the dashed black line depicts a fitted linear regression using WUS-wide annual average values. All RxDay projections assume a “moderate warming” (RCP4.5) trajectory and use meteorological data from the downscaled CMIP5 climate model ensemble dataset (MACA) over the years 1981–2060.
