How are Heating Degree Days and Cooling Degree Days calculated for the USA Regional symbols located at: Root>Other>Geophysical>Geo_N.Amer>Geo_USA.Regional?
An explanation of Heating Degree Days and Cooling Degree Days can be found at: http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/cdus/degree_days/ddayexp.shtml Below are the population weights used for the CoolingDegreeDays and HeatingDegreeDays columns for these LIM symbols. NEW ENGLAND POP WT CONNECTICUT 0.24461 MAINE 0.09157 MASSACHUSETTS 0.45603 NEW HAMPSHIRE 0.08876 RHODE ISLAND 0.0753 VERMONT 0.04373 MIDDLE ATLANTIC POP WT NEW JERSEY 0.2121 NEW YORK 0.47833 PENNSYLVANIA 0.30957 E N CENTRAL POP WT ILLINOIS 0.27504 INDIANA 0.13466 MICHIGAN 0.2201 OHIO 0.25142 WISCONSIN 0.11878 W N CENTRAL POP WT IOWA 0.15211 KANSAS 0.13975 MINNESOTA 0.25572 MISSOURI 0.29085 NEBRASKA 0.08895 NORTH DAKOTA 0.03338 SOUTH DAKOTA 0.03924 SOUTH ATLANTIC POP WT DELAWARE 0.01514 FLORIDA 0.30872 GEORGIA 0.15813 MARYLAND AND DC 0.11336 NORTH CAROLINA 0.15549 SOUTH CAROLINA 0.0775 VIRGINIA 0.13673 WEST VIRGINIA 0.03493 E S CENTRAL POP WT ALABAMA 0.26124 KENTUCKY 0.23743 MISSISSIPPI 0.16711 TENNESSEE 0.
