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  • 1
    Type of Medium: Book
    Pages: 27 S , Ill., graph. Darst
    Series Statement: Report / Institute of Oceanographic Sciences Wormley, Godalming 151
    Language: English
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  • 2
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 2016-01-11
    Description: A key challenge in oceanography is to capture and quantify processes that happen on short time scales, seasonal changes and inter-annual variations. To address this problem the P&O European Ferries Ltd. Ship MV Pride of Bilbao was fitted with a FerryBox from 2002 to 2010 and data returned to NOC in real time providing near continuous measurements between UK (Portsmouth) and Spain (Bilbao) of temperature, salinity, chlorophyll-fluorescence and oxygen. Additional monthly samples were collected on manned crossings. Over 6000 samples were analysed for nitrate (nitrate and nitrite) concentrations. The timing of nitrate concentration increases (with winter mixing) and decreases (with the spring bloom) are different on and off shelf and in autumn nitrate concentrations remain high on the shelf. Off shelf in the Bay of Biscay, the mixed layer depth assessed using Argo floats, was found to vary from 212 m in relatively mild winters (such as 2007/2008) to 476 m in cold winters (2009/2010). Years with deeper mixing were associated with an increase in nitrate concentrations in the surface waters (~3 μmol l−1) and the increased vertical nutrient supply resulted in higher productivity the following spring. Bloom progression could be seen through the increase in oxygen anomaly and decrease in nitrate concentrations off shelf prior to changes further north on the shelf and phytoplankton growth was initiated as shoaling begins. The full dataset demonstrates that ships of opportunity, particularly ferries with consistently repeated routes, can deliver high quality in situ measurements over large time and space scales that currently cannot be delivered in any other way.
    Type: Article , PeerReviewed
    Format: text
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  • 4
    Publication Date: 2016-03-14
    Description: Autoclaved natural seawater collected in the North Pacific Ocean was used as a reference material for nutrients in seawater (RMNS) during an inter-laboratory comparison (I/C) study conducted in 2008. This study was a follow-up to previous studies conducted in 2003 and 2006. A set of six samples was distributed to each of 58 laboratories in 15 countries around the globe, and results were returned by 54 of those laboratories (15 countries). The homogeneities of samples used in the 2008 I/C study, based on analyses for three determinants, were improved compared to those of samples used in the 2003 and 2006 I/C studies. Results of these I/C studies indicate that most of the participating laboratories have an analytical technique for nutrients that is sufficient to provide data of high comparability. The differences between reported concentrations from the same laboratories in the 2006 and 2008 I/C studies for the same batch of RMNS indicate that most of the laboratories have been maintaining internal comparability for two years. Thus, with the current high level of performance in the participating laboratories, the use of a common reference material and the adaptation of an internationally accepted nutrient scale system would increase comparability among laboratories worldwide, and the use of a certified reference material would establish traceability. In the 2008 I/C study we observed a problem of non-linearity of the instruments of the participating laboratories similar to that observed among the laboratories in the 2006 I/C study. This problem of non-linearity should be investigated and discussed to improve comparability for the full range of nutrient concentrations. For silicate comparability in particular, we see relatively larger consensus standard deviations than those for nitrate and phosphate.
    Type: Report , NonPeerReviewed
    Format: text
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  • 5
    Publication Date: 2023-02-24
    Keywords: Alkalinity, total; Calculated from pressure, temperature, and conductivity; Carbon, inorganic, dissolved; Coulometric titration; DATE/TIME; DEPTH, water; EPOCA; European Project on Ocean Acidification; LATITUDE; LONGITUDE; Measured; Nitrate and Nitrite; Phosphate; Potentiometric titration, VINDTA (marianda); Salinity; Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM; Silicate; Site; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 2312 data points
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  • 6
    Publication Date: 2023-05-12
    Keywords: Coccolithophoridae, other; Coccolithophoridae, total; Coccolithophoridae sp., overcalcified; Counting, coccoliths; DATE/TIME; DEPTH, water; EPOCA; European Project on Ocean Acidification; LATITUDE; LONGITUDE; Scanning electron microscope (SEM); Volume
    Type: Dataset
    Format: text/tab-separated-values, 2447 data points
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  • 7
    Publication Date: 2024-02-01
    Keywords: Aluminium, dissolved and reactive; CD94; CD94_CTD12; CD94_CTD13; CD94_CTD14; CD94_CTD16; CD94_CTD17; CD94_CTD18; CD94_CTD19; CD94_CTD22; CD94_CTD24; CD94_CTD25; CD94_CTD28; CD94_CTD29; CD94_CTD30; CD94_CTD32; CD94_CTD36; CD94_CTD37; CD94_CTD41; CD94_CTD43; CD94_CTD44; CD94_CTD45; CD94_CTD47; CD94_CTD48; CD94_CTD50; CD94_CTD7; Charles Darwin; CTD/Rosette; CTD12; CTD13; CTD14; CTD16; CTD17; CTD18; CTD19; CTD22; CTD24; CTD25; CTD28; CTD29; CTD30; CTD32; CTD36; CTD37; CTD41; CTD43; CTD44; CTD45; CTD47; CTD48; CTD50; CTD7; CTD-RO; Date/Time of event; DEPTH, water; Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Lumogallion (unfiltered); Ocean Margin Exchange Project; OMEX; Omex 0695
    Type: Dataset
    Format: text/tab-separated-values, 132 data points
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  • 8
    Publication Date: 2024-02-01
    Keywords: Colorometric autoanalysis (unfiltered); CTD/Rosette; CTD10; CTD11; CTD12; CTD13; CTD14; CTD16; CTD17; CTD18; CTD19; CTD20; CTD21; CTD22; CTD23; CTD24; CTD25; CTD26; CTD27; CTD28; CTD29; CTD3; CTD30; CTD31; CTD32; CTD34; CTD35; CTD36; CTD37; CTD38; CTD39; CTD4; CTD41; CTD42; CTD44; CTD45; CTD5; CTD6; CTD7; CTD-RO; D216; Date/Time of event; DEPTH, water; DI216_CTD10; DI216_CTD11; DI216_CTD12; DI216_CTD13; DI216_CTD14; DI216_CTD16; DI216_CTD17; DI216_CTD18; DI216_CTD19; DI216_CTD20; DI216_CTD21; DI216_CTD22; DI216_CTD23; DI216_CTD24; DI216_CTD25; DI216_CTD26; DI216_CTD27; DI216_CTD28; DI216_CTD29; DI216_CTD3; DI216_CTD30; DI216_CTD31; DI216_CTD32; DI216_CTD34; DI216_CTD35; DI216_CTD36; DI216_CTD37; DI216_CTD38; DI216_CTD39; DI216_CTD4; DI216_CTD41; DI216_CTD42; DI216_CTD44; DI216_CTD45; DI216_CTD5; DI216_CTD6; DI216_CTD7; Discovery (1962); Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Nitrite; Ocean Margin Exchange Project; OMEX; Omex 0895; Oxygen; Oxygen, Winkler (Culberson, 1991, WOCE Report 68/91); Phosphate; Salinity; Salinometer, inductive; Silicate
    Type: Dataset
    Format: text/tab-separated-values, 1334 data points
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  • 9
    Publication Date: 2024-02-01
    Keywords: Aluminium, dissolved and reactive; CD84; CD84_CTD10; CD84_CTD13; CD84_CTD14; CD84_CTD16; CD84_CTD17; CD84_CTD20; CD84_CTD4; CD84_CTD6; CD84_CTD7; CD84_CTD8; CD84_CTD9; Charles Darwin; Colorometric autoanalysis (unfiltered); CTD/Rosette; CTD10; CTD13; CTD14; CTD16; CTD17; CTD20; CTD4; CTD6; CTD7; CTD8; CTD9; CTD-RO; Date/Time of event; DEPTH, water; Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Lumogallion (unfiltered); Nitrite; Ocean Margin Exchange Project; OMEX
    Type: Dataset
    Format: text/tab-separated-values, 193 data points
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  • 10
    Publication Date: 2024-05-02
    Description: The Surface Ocean CO2 Atlas (SOCAT) is a synthesis activity by the international marine carbon research community (〉100 contributors). SOCAT version 6 has 23.4 million quality-controlled, surface ocean fCO2 (fugacity of carbon dioxide) observations from 1957 to 2017 for the global oceans and coastal seas. Calibrated sensor data are also available. Automation allows annual, public releases. SOCAT data is discoverable, accessible and citable. SOCAT enables quantification of the ocean carbon sink and ocean acidification and evaluation of ocean biogeochemical models. SOCAT represents a milestone in biogeochemical and climate research and in informing policy.
    Keywords: SOCAT; Surface Ocean CO2 Atlas Project
    Type: Dataset
    Format: application/zip, 424 datasets
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