US geographic boundary shapefiles for use in map-based visualization of Epicast data

epicast-geodata Lightly edited shapefiles for US states, counties, tracts, and blockgroups for use in epicast-julia-tools mapping functions. The original source files were edited only to move the positions of AK and HI to be convenient for making visualizations of the full US, and to change the coordinates from long,lat to "USA contiguous Albers equal area conic" (Ellipsoid: GRS 1980, Prime meridian: Greenwich). Original data source U.S. Census Bureau, “CB 2019 data”, TIGER/Line Shapefiles, 2019, https://www2.census.gov/geo/tiger/GENZ2019/shp/, accessed on June 20, 2024. The original source files were: https://www2.census.gov/geo/tiger/GENZ2019/shp/cb_2019_us_state_5m.zip https://www2.census.gov/geo/tiger/GENZ2019/shp/cb_2019_us_county_5m.zip https://www2.census.gov/geo/tiger/GENZ2019/shp/cb_2019_us_tract_500k.zip https://www2.census.gov/geo/tiger/GENZ2019/shp/cb_2019_us_bg_500k.zip Acknowledgements This work was supported by the U.S. Department of Energy, Office of Science, Office of Advanced Scientific Computing Research and by cooperative agreement CDC-RFA-FT-23-0069 from the CDC’s Center for Forecasting and Outbreak Analytics. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Centers for Disease Control and Prevention. This work was performed at Los Alamos National Laboratory (LANL), an equal opportunity employer, which is operated by Triad National Security, LLC, for the National Nuclear Security Administration (NNSA) of the U.S. Department of Energy (DOE) under contract #19FED1916814CKC. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. This data set is approved for public distribution under LA-UR-25-26236. The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of LANL.