Insolation data manual and direct normal solar radiation data manual

Technical Report · Sun Jul 01 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/6301365· OSTI ID:6301365

The Insolation Data Manual presents monthly averaged data which describes the availability of solar radiation at 248 National Weather Service (NWS) stations, principally in the United States. Monthly and annual average daily insolation and temperature values have been computed from a base of 24--25 years of data, generally from 1952--1975, and listed for each location. Insolation values represent monthly average daily totals of global radiation on a horizontal surface and are depicted using the three units of measurement: kJ/m{sup 2} per day, Btu/ft{sup 2} per day and langleys per day. Average daily maximum, minimum and monthly temperatures are provided for most locations in both Celsius and Fahrenheit. Heating and cooling degree-days were computed relative to a base of 18.3 C (65 F). For each station, global {bar K}{sub T} (cloudiness index) values were calculated on a monthly and annual basis. Global {bar K}{sub T} is an index of cloudiness and indicates fractional transmittance of horizontal radiation, from the top of the atmosphere to the earth's surface. The second section of this volume presents long-term monthly and annual averages of direct normal solar radiation for 235 NWS stations, including a discussion of the basic derivation process. This effort is in response to a generally recognized need for reliable direct normal data and the recent availability of 23 years of hourly averages for 235 stations. The relative inaccessibility of these data on microfiche further justifies reproducing at least the long-term averages in a useful format. In addition to a definition of terms and an overview of the ADIPA model, a discussion of model validation results is presented.

• Research Organization: Solar Energy Research Inst. (SERI), Golden, CO (United States)
• Sponsoring Organization: DOE/CE
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 6301365
• Report Number(s): SERI/TP-220-3880; ON: DE90000353
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
USA
INSOLATION
SOLAR RADIATION
AMBIENT TEMPERATURE
ANNUAL VARIATIONS
AVAILABILITY
CLOUDS
COOLING LOAD
DATA COMPILATION
DESIGN
HEATING LOAD
HISTORICAL ASPECTS
MEASURING METHODS
MONTHLY VARIATIONS
REGIONAL ANALYSIS
SOLAR EQUIPMENT
DATA
EQUIPMENT
INFORMATION
NORTH AMERICA
RADIATIONS
STELLAR RADIATION
VARIATIONS
SOLAR
SOLAR ENERGY
140100* - Solar Energy- Resources & Availability