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Estimated Frequency of Severe Thermal Stress in the 2050s under an IPCC business-as-usual emissions scenario
Grid reflects the estimated frequency of severe thermal stress (NOAA Bleaching Alert Level 2) for decade 2050. Values are a percent (as integer) of the decade in which the grid cell would experience severe thermal stress under an IPCC "business-as-usual" emissions scenario. The specific indicator used in the model was the frequency (number of years in the decade) that the bleaching threshold is reached at least once. Frequencies were adjusted to account for historical sea surface temperature variability. Values range from 0 to 100. See the Reefs at Risk Revisited report and technical notes for more information.
This layer represent the direction of housing density change in 2050 as compared to 2010. It was created by substracting bhc2050 from bhc2010. Negative values represent an increase in housing density (e.g. shifts from '2' in year 2010 to '3' in year 2050). 0 indicates no change. Positive values would indicate a shift to a lower (less dense) category (e.g. moving from '3' to '2') ICLUS v1.3 Housing Density for the Conterminous USA. The data are classified into descriptive categories for general analytic and cartographic purposes. 99 = Commercial/Industrial 4 = <0.25 acres/unit = "urban" 3 = 0.25 to 2 acres/unit = "suburban" 2 = 2 to 40 acres/unit = "exurban" 1 = >40 acres/unit = "rural Climate and land-use change...
This data layer was created by subtracting is2050rclss (representing projections for year 2050 under a2) from is2010reclss (representing projections for year 2010) to create a difference in percent impervious surface layer. Negative values represent an increase in percentage by 1, 2, or 3 levels, 0 indicates no change, and positive values represent a decrease in impervious layers by 1 or 2 levels. Levels refer to the values, 1-7, of is2050rclss and is2010reclss created by reclassifying the source rasters such that 0%=1, 0.01-9.5%=2, 9.5-19%=3, 19-29%=4, 29-38%=5, 38-48%=6, 48-58%=7. Description from original file: ICLUS v1.3 Estimated Percent Impervious Suface for the Conterminous USA. Pixel values are projected...
Developed by the Oak Ridge National Laboratory (ORNL), the LandCast 2050 High-Resolution Population Projection models future national-level human population densities. The models estimate the probability of a population being at a particular location, which measures where people will likely be in the future, not necessarily their places of residence.The LandCast 2050 data set is an empirically-informed spatial distribution of projected population of the contiguous U.S. for 2050 compiled on a 30” x 30” latitude/longitude grid. Population projections of county level numbers were developed using a modified version of the U.S. Census’ projection methodology-with the U.S. Census’ official projection as the benchmark....