Dataset for the Evaluation of Temporal Homogeneity in Daymet, nClimGrid, PRISM AN, and PRISM LT across the Eastern and Central United States (1980–2024)
Description
These data support the evaluation of temporal inhomogeneities and associated biases in annual and seasonal precipitation trends from four high-resolution gridded precipitation products across the eastern and central United States (ECUS) during 1980–2024. The evaluated products are Daymet, nClimGrid, PRISM AN (All Networks), and PRISM LT (Long Term). The files provided are listed below. 1. Gauges1683_1980-2024.xlsx: Monthly precipitation totals for the initial set of 1,683 long-term COOP gauges used during the regionalization process (1980–2024) 2. Gauges1271_1980-2024.xlsx: Monthly precipitation totals for the final set of 1,271 spatially dispersed COOP gauges used as the reference networks (1980–2024) 3. PrecipitationTotals_Reference.xlsx: Regional annual and seasonal precipitation totals derived from the 1,271 reference gauges 4. PrecipitationTotals_Daymet.xlsx: Regional annual and seasonal precipitation totals extracted from the Daymet gridded precipitation product 5. PrecipitationTotals_nClimGrid.xlsx: Regional annual and seasonal precipitation totals extracted from the nClimGrid gridded precipitation product 6. PrecipitationTotals_PRISMAN.xlsx: Regional annual and seasonal precipitation totals extracted from the PRISM AN gridded precipitation product 7. PrecipitationTotals_PRISMLT.xlsx: Regional annual and seasonal precipitation totals extracted from the PRISM LT gridded precipitation product 8. PrecipitationDifferences_Daymet.xlsx: Percent differences between Daymet and the reference precipitation totals for each region and time period 9. PrecipitationDifferences_nClimGrid.xlsx: Percent differences between nClimGrid and the reference precipitation totals for each region and time period 10. PrecipitationDifferences_PRISMAN.xlsx: Percent differences between PRISM AN and the reference precipitation totals for each region and time period 11. PrecipitationDifferences_PRISMLT.xlsx: Percent differences between PRISM LT and the reference precipitation totals for each region and time period 12. ChangePoints.xlsx: Change-point years for each combination of product, period, and region 13. GaugeCounts_Products: Annual counts of gauges per networks used in the development of Daymet, nClimGrid, PRISM AN, and PRISM LT 14. Gauges1683.shp: Point locations of the initial 1,683 COOP gauges used in the regionalization analysis 15. Gauges1271.shp: Point locations of the final 1,271 COOP gauges used as the reference networks 16. ECUS.shp: Polygon defining the eastern and central United States study region 17. ECUS_States.shp: State boundaries within the eastern and central United States study region 18. Regions15_ECUS.shp: Polygons representing the 15 precipitation regions developed for the study 19. GaugedZones_Regions15_ECUS.shp: Polygons representing the gauge-network extents used for regional precipitation extraction and analysis All shapefiles are located in the Geospatial Data archive.
Files
Institutions
- Georgia State UniversityGeorgia, Atlanta