Normal Incident Solar Radiation Atlas

These data were originally downloaded from the National Renewable Energy Laboratory (NREL) web site http://www.nrel.gov/gis/data_solar.html in units of kilowatt-hours per square meter per day and were converted to Langleys per day. 1 Langley per day = 1 calorie per square centimeter per day. or 1 Langley per day = 0.01163 kilowatt-hour per square meter per day. NREL has several different values of solar radiation available, the "global horizontal" data is what is represented by this service. "Global horizontal" means on a surface perpendicular to the radius -- i.e. a horizontal plate, wherever on the Earth you are measuring (or using) it. Please note NREL's disclaimer: http://www.nrel.gov/disclaimer.html

Data and Resources

Field Value
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Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
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  • amerigeoss
  • ckan
  • climate
  • geo
  • geoss
  • national
  • north-america
  • solar-radiation
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer (Distributor)
maintainer_email gdp@usgs.gov
metadata_created 2025-11-20T15:45:12.188555
metadata_modified 2025-11-20T15:45:12.188559
notes These data were originally downloaded from the National Renewable Energy Laboratory (NREL) web site http://www.nrel.gov/gis/data_solar.html in units of kilowatt-hours per square meter per day and were converted to Langleys per day. 1 Langley per day = 1 calorie per square centimeter per day. or 1 Langley per day = 0.01163 kilowatt-hour per square meter per day. NREL has several different values of solar radiation available, the "global horizontal" data is what is represented by this service. "Global horizontal" means on a surface perpendicular to the radius -- i.e. a horizontal plate, wherever on the Earth you are measuring (or using) it. Please note NREL's disclaimer: http://www.nrel.gov/disclaimer.html
num_resources 5
num_tags 10
title Normal Incident Solar Radiation Atlas