The NORBAL-5 cruise was conducted in the Gulf of Lions (Northwestern Mediterranean) in Apri12003 from the Italian ship RN Urania. It was one of a series of cruises designed to investigate the physical and optical processes contributing to an uncommonly elevated concentration of biomass (Saggiorno et. al, 2000), as retrieved from SeaWiFS scenes (ludicone et al., 2002). Measurements of temperature, conductivity, and irradiance (49Onm, 555nm, and 683nm) were made wi!h the Skin Depth Experimental Profiler (SkinDeEP), a Lagrangian, autonomous, upwardly--rising profiler. During the deployments, the ship maintained its position to within 100 m of SkinDeEP, within the field of view of the Marine-- Attnosphere Emitted Radiance Interferometer (M-AERI), which measured the skin temperature and air--sea temperature difference. The biomass concentration and activity were estirnated with bio-optical measurements. Fluorescence profiles were calibrated to chlorophyll through spectrophotometric determiiiation af pigment concentration from acetonic extracts of filtered discrete samples. Attenuation coefficients are computed with the irradiance data, and these are related to chlorphyll concentration. Temperature profiles are compared to a warm layer model with the coefficients determined from the irradiance profiles.
Study of near surface radiant heating from irradiance and temperature profiles in the Mediterranean / Ward B.; P. Strutton; P.J. Minnett; I. Nardello; L. Lazzara. - STAMPA. - 2004 Ocean Science Meetings:(2004), pp. 52-52. (Intervento presentato al convegno American Geophysical Union tenutosi a Portland, Oregon) [10.1029/2003EO160007].
Study of near surface radiant heating from irradiance and temperature profiles in the Mediterranean.
NARDELLO, ILARIA;LAZZARA, LUIGI
2004
Abstract
The NORBAL-5 cruise was conducted in the Gulf of Lions (Northwestern Mediterranean) in Apri12003 from the Italian ship RN Urania. It was one of a series of cruises designed to investigate the physical and optical processes contributing to an uncommonly elevated concentration of biomass (Saggiorno et. al, 2000), as retrieved from SeaWiFS scenes (ludicone et al., 2002). Measurements of temperature, conductivity, and irradiance (49Onm, 555nm, and 683nm) were made wi!h the Skin Depth Experimental Profiler (SkinDeEP), a Lagrangian, autonomous, upwardly--rising profiler. During the deployments, the ship maintained its position to within 100 m of SkinDeEP, within the field of view of the Marine-- Attnosphere Emitted Radiance Interferometer (M-AERI), which measured the skin temperature and air--sea temperature difference. The biomass concentration and activity were estirnated with bio-optical measurements. Fluorescence profiles were calibrated to chlorophyll through spectrophotometric determiiiation af pigment concentration from acetonic extracts of filtered discrete samples. Attenuation coefficients are computed with the irradiance data, and these are related to chlorphyll concentration. Temperature profiles are compared to a warm layer model with the coefficients determined from the irradiance profiles.
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