Gagosian Robert B.

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Gagosian
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Robert B.
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  • Technical Report
    Hydrographic and nutrient data from R/V Atlantis II cruise 108, leg 3 : March to April 1981 : off the coast of Peru
    (Woods Hole Oceanographic Institution, 1983-01) Gagosian, Robert B. ; Loder, Theodore ; Nigrelli, Gale ; Love, James
    In March and April of 1981 a major cruise was undertaken on the R/V Atlantis II off the Peruvian coast near 15°S in order to investigate the sea-air exchange of selected heavy metals and natural and anthropogenic organic compounds. The purpose of this report is to collate the hydrographic, nutrient, and plankton data generated from various investigators on this cruise end to provide a standard of reference for the cruise participants. Data for temperature, salinity, oxygen, nitrate, nitrite, axnmonium, phosphate, silicate, chlorophyll a, particulate organic carbon, and particulate organic nitrogen are given. In addition, air and sea temperatures, and wind speed and direction data, collected using the SAIL system, are included.
  • Technical Report
    Hydrographic and nutrient data from R/V Knorr cruise 73, leg 2 : February to March, 1978 : off the coast of Peru
    (Woods Hole Oceanographic Institution, 1980-01) Gagosian, Robert B. ; Loder, Theodore ; Nigrelli, Gale ; Mlodzinska, Zofia ; Love, James ; Kogelschatz, Jane
    In February and March of 1978 a major cruise was undertaken on the R/V KNORR off the Peruvian coast near 15°S in order to investigate the organic biogeochemical processes associated with upwelling areas. The purpose of this report is to collate the large amount of hydrographic, nutrient, and plankton data generated from various investigators on this cruise and use the report as a standard for the cruise participants. Data for temperature, salinity, oxygen, nitrate, nitrite, ammonium, phosphate, silicate, chlorophyll a, productivity indices, and carbon fixation rates are given.
  • Technical Report
    Methodology for sampling and analysis of lipids in aerosols from the remote marine atmosphere
    (Woods Hole Oceanographic Institution, 1984-04) Peltzer, Edward T. ; Alford, Jame B. ; Gagosian, Robert B.
    A procedure is described for the collection of remote marine aerosol samples by high-volume filtration, cascade impaction, dry fallout collection and rain. Samples were analyzed quantitatively for five classes of naturally occurring lipids (n-alkanes, wax esters, fatty alcohols, sterols, and fatty acids) and polycyclic aromatic hydrocarbons (PAHs). Air samples (4,000-10,000 m3) were collected on glass fiber filters under automatic control. Rain samples of 1-5 L were collected on an event basis. Filters and rain samples were extracted with methylene chloride. The extracts were fractionated into discrete chemical classes by silca-gel absorption chromatography. The fractions were derivatized if necessary and analyzed by HRGC and HRGC/MS. A second fiter extraction was required for fatty acid salt analysis. Internal standards were used to quantify recoveries and concentrations. Mean recoveries relative to the internal standards were 96.5% for C12-C36 n-alkanes, 96.4% for C12-C30 n-fatty acids, 92.5% for C12-C30 n-fatty alcohols and 93.3% for cholesterol. Typical blanks and concentrations for remote marine aerosol and rain samples are described and compared with other methods used in coastal marine, rural and suburban sampling locations.