Effects of volcanic dust clouds on surface insolation

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

OSTI ID:5156477

Spencer, D W; Stewart, W

Clear periods of days from thirty-one months were used to determine the intensities of direct, global, and diffuse solar radiation at the earth's surface in four spectral bands. The solar measurements were made through Schott filters OG1, RG2, RG8, and WG7 with Eppley Normal Incidence Pyrheliometers and Precision Spectral Pyranometers. The spectral band intensities were calculated by finding the difference between the measurements. The diffuse was calculated by subtracting the direct on a horizontal surface from the global. The dust clouds from both the Mt. St. Helens and El Chichon volcanic eruptions affected the measured intensities in these bands. The effect from the Mt. St. Helens cloud was large but short in duration, while the El Chichon effect was smaller but persistent through several months.

• Research Organization: Albright and Spencer, Madison, Wisconsin
• OSTI ID: 5156477
• Journal Information: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States), Journal Name: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States) Vol. 6; ISSN PMSID
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140100* -- Solar Energy-- Resources & Availability
CLOUDS
DUSTS
ECOLOGICAL CONCENTRATION
INSOLATION
MEASURING METHODS
RADIATIONS
SOLAR RADIATION
STELLAR RADIATION
VOLCANOES