Jacobs, K. R. University of New Hampshire, jacobs@kelvin.sr.unh.edu
Campbell, J. R. University of New Hampshire, campbell@kelvin.sr.unh.edu

Ocean color algorithms and bio-optical models have been tested extensively for open-ocean (Case I) waters where it is assumed that optically active constituents such as particulate absorption (ap), detrital absorption (ad), and absorption due to colored dissolved organic matter (acdom) are covarying. This assumption of covariance between these constituents breaks down in coastal and inland waters where terrestrial inputs are a significant source of optical variability. A study was conducted during the summer of 1997 with the purpose of characterizing the optical variability in a highly turbid, well-mixed estuary near Durham, NH. Measurements were made hourly on 11 separate days and at two different locations (one at the head and the other at the mouth of the estuary) for periods of 7 to 11 hours each day. Among the data collected were measurements of ap, ad, and acdom. Also, measurements were made of total beam-attenuation at 660 nm, total suspended solid concentration, chlorophyll a concentration, downwelling irradiance above the surface at 3 wavelengths, and upwelling radiance below the surface at 7 wavelengths. The radiance and irradiance data were processed to calculate remote sensing reflectance just above the surface. Reported here is the variability of each of these measured parameters on daily to weekly time scales as well as the performace and parameterization of the Roesler and Perry (1995) ocean color inversion algorithm.
Day: Thursday, Feb. 4
Time: Poster
Location: Sweeney Center
Code: CS61TH1041S