Share Email Print

Proceedings Paper

Effects of ultraviolet radiation on the persistence of ocean surface slick microlayer pressure
Author(s): Richard A. Skop; Ruo-Shan Tseng; John W. Brown
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Coastal seawater was collected on incoming high tides at the Rosenstiel School of Marine & Atmospheric Science. 3.51 of water was transferred to a plexiglass bubble-tank and aerated for 30 sec at a flow rate of 4.0 ml/min per cm2 of water surface area (158 cm2) using glass frits producing bubbles of 203 +/- 61 micrometers diameter. The surface pressure was then determined using calibrated spreading oils of known spreading pressure. After cleaning the seawater surface thoroughly, the water was re-aerated and allowed to stand for 1 to 3 hours in the absence and presence of longwave (365 nm) or shortwave (254 nm) ultraviolet (UV) light, both having an intensity of approximately 300 +/- 25 (mu) W/cm2. In the absence of UV radiation, the surface pressure fell to approximately 64% of its initial value after 1 hour of standing and to approximately 63% of its initial value after 3 hours. Comparable results were obtained in the presence of longwave UV exposure. Under shortwave UV radiation, the decline in surface pressure was substantially accelerated; becoming 55% of the initial value after 1 hour and 35% of the initial value after 3 hours.

Paper Details

Date Published: 22 December 1992
PDF: 7 pages
Proc. SPIE 1749, Optics of the Air-Sea Interface: Theory and Measurement, (22 December 1992); doi: 10.1117/12.138860
Show Author Affiliations
Richard A. Skop, Univ. of Miami (United States)
Ruo-Shan Tseng, Univ. of Miami (United States)
John W. Brown, Univ. of Miami (United States)

Published in SPIE Proceedings Vol. 1749:
Optics of the Air-Sea Interface: Theory and Measurement
Leland Estep, Editor(s)

© SPIE. Terms of Use
Back to Top