PIs*: Frouin, Robert
Start Time:2011-02-20 19:17:13
End Time:2011-03-13 14:01:56
Data Types: pigment, cast
Parameters: allo alpha-beta-car but-fuco chl_a chl_b chl_c1c2 chl_c3 chlide_a diadino diato dp dv_chl_a dv_chl_b ed epar es eu eupar fuco gyro hex-fuco hpl kd kpar lu lut mpf natf neo npf par perid phide_a phytin_a ppc ppc_tcar ppc_tpg ppf pras psc psc_tcar psp psp_tpg tacc tacc_tchla tcar tchl tchl_tcar tchla_tpg tot_chl_a tot_chl_b tot_chl_c tpg viola wt zea
*Listed alphabetically




The influence of whitecaps on ocean color and aerosol remote sensing from space were invistigated onboard the R/V Melville (MV1102) from Cape Town, South Africa to Valparaiso, Chile from February 2, 2011 to March 14, 2011. Satellite imagery has revealed relatively large amounts of aerosols and particulate organic and inorganic carbon in the Southern oceans, but it is not clear whether this is real or the result of not taking into account properly whitecap effects in the retrieval algorithms. By measuring whitecap optical properties and profiles of marine reflectance and backscattering and absorption coefficients, a bulk whitecap reflectance model will be developed. The measurements will allow comparisons of the aerosol optical thickness and marine reflectance one should retrieve (i.e., in the absence of whitecaps and bubbles) with the satellite-derived estimates. The parameters/variables that will be measured include whitecap coverage, surface reflectance, aerosol optical thickness, in situ profiles of marine reflectance, backscattering and attenuation coefficients, and particle size distribution, and absorption and backscattering coefficients and HPLC pigments from water samples. The backscattering and absorption measurements from water samples will characterize conditions without whitecaps. Cruise information can be found in the R2R repository: https://www.rvdata.us/search/cruise/MV1102.

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