Layer Name:	Solar Radiation

Coverage Name:	SOLRAD

Layer Type:	Polygon

Status:		Complete

Geog. Extent:	Islands of Kauai, Oahu, Maui, Molokai and Hawaii only

Projection:	Universal Trans Mercator, Zone 4, meters

Datum:		NAD 83

Description:	Estimated Daily Solar Insulation Contours, in calories/sq.cm/day 
		
Source:		State Department of Planning and Economic Development, 
		Energy Division "Sunshine Maps," 1985.  Source maps
		were of varying scales, with each island depicted on an
		11x17 paper map sheet. 

		Per DBEDT Energy Division, July, 2006:

		"The solar maps were put together several years ago by a consultant we hired 
		to review old Hawaii Sugar Planters Associaiton annemometer solar data collected 
		from a number of different sites."

History:	Digitized by OP staff in Arc/Info using ArcEdit, 1992.
		
Attributes:	Polygons:

		AREA			area of polygon (sq. meters)
		PERIMETER		perimeter of polygon (meters)
		<ISL>SOL#		Polygon internal number (for Arc/Info use)
		<ISL>SOL-ID		Polygon ID (for Arc/Info use)
		SOLAR.CAL		Estimated solar calories per sq. centimeter per day
		
		
		Arcs:
		
		FNODE#		From Node Number (for Arc/Info use)
		TNODE#		To Node Number (for Arc/Info use)
		LPOLY#		Left Polygon Number (for Arc/Info use)
		RPOLY#		Right Polygon Number (for Arc/Info use)
		LENGTH		Length (meters)
		<ISL>SOL#	Arc Internal Number (for Arc/Info use)
		<ISL>SOL-ID	Arc ID (for Arc/Info use)
		FLAG		Source of Arc
		SOLAR.CAL	Estimated solar calories per sq. centimeter per day
		


		FLAG			Definition
		
		0			Digitized arc
		1			Extracted arc (from 1:24,000 DLGs)
		2			Closure arc	
		3			Coastline arc
		9			Other


		
			
Contact:	Joan Delos Santos, Office of Planning, State of Hawaii, 
		PO Box 2359, Honolulu, Hi.  96804; (808) 587-2895.
		email:  JDelos_Santos@dbedt.hawaii.gov