An inventory of Arctic Ocean data in the World Ocean Database

Zweng, Melissa M.; Boyer, Tim; Baranova, O; Reagan, James R.; Seidov, Dan; Smolyar, I

doi:10.5194/essd-2017-63

Cited by 99 publications

(127 citation statements)

References 19 publications

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“…Annual mean values of dissolved oxygen (at 100 m depth) and salinity were also retrieved from the WOA18 database (Garcia et al 2018a, Zweng et al 2018). Data on salinity extended back to 1955–1964, so we retrieved data from this decade.…”

Section: Methodsmentioning

confidence: 99%

Drivers of global pre‐industrial patterns of species turnover in planktonic foraminifera

2021

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Anthropogenic climate change is altering global biogeographical patterns. However, it remains difficult to quantify how bioregions are changing because pre‐industrial records of species distributions are rare. Marine microfossils, such as planktonic foraminifera, are preserved in seafloor sediments and allow the quantification of bioregions in the past. Using a recently compiled data set of pre‐industrial species composition of planktonic foraminifera in 3802 worldwide seafloor sediments, we employed multivariate and statistical model‐based approaches to study spatial turnover in order to 1) quantify planktonic foraminifera bioregions and 2) understand the environmental drivers of species turnover. Four latitudinally banded bioregions emerge from the global assemblage data. The polar and temperate bioregions are bi‐hemispheric, supporting the idea that planktonic foraminifera species are not limited by dispersal. The equatorial bioregion shows complex longitudinal patterns and overlaps in sea surface temperature (SST) range with the tropical bioregion. Compositional‐turnover models (Bayesian bootstrap generalised dissimilarity models) identify SST as the strongest driver of species turnover. The turnover rate is constant across most of the SST gradient, showing no SST threshold values with rapid shifts in species composition, but decelerates above 25°C, suggesting SST is less predictive of species composition in warmer waters. Other environmental predictors affect species turnover non‐linearly, and their importance differs across regions. In the Pacific ocean, net primary productivity below 500 mgC m−2 day−1 drives fast compositional change. Water depth values below 3000 m (which affect calcareous microfossil preservation) increasingly drive changes in species composition among death assemblages in the Pacific and Indian oceans. Together, our results suggest that the dynamics of planktonic foraminifera bioregions are expected to be highly responsive to climate change; however, at lower latitudes, environmental drivers other than SST may affect these dynamics.

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Section: Methodsmentioning

confidence: 99%

Drivers of global pre‐industrial patterns of species turnover in planktonic foraminifera

2021

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“…The properties for the source water masses were basically cited from the literature values in which the locations and the method of estimating the properties are clarified. When the literature values for O and PV were not available, the data of θ, S, and O from the World Ocean Atlas 2018 (WOA18) data were used (Garcia et al, 2018;Locarnini et al, 2018;Zweng et al, 2018). Details of our estimation of O and PV are detailed in Table 1.…”

Section: Water Mass Analysismentioning

confidence: 99%

Determining the Distribution of Fluorescent Organic Matter in the Indian Ocean Using in situ Fluorometry

et al. 2020

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In order to determine the dynamics of marine fluorescent organic matter (FOM) using high-resolution spatial data, in situ fluorometers have been used in the open ocean. In this study, we measured FOM during the Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) expedition from early December 2019 to early February 2020, using an in situ fluorometer at 148 stations along the two meridional transects (at ∼80 and ∼57°E) in the Indian Ocean, covering latitudinal ranges from ∼6°N to ∼20°S and ∼30 to ∼65°S, respectively. The FOM data obtained from the fluorometer were corrected for known temperature dependence and calibrated using FOM data measured onboard by a benchtop fluorometer. Using the relative water mass proportions estimated from water mass analyses, we determined the intrinsic values of FOM and apparent oxygen utilization (AOU) for each of the 12 water masses observed. We then estimated the basin-scale relationship between the intrinsic FOM and the AOU, as well as the turnover time for FOM in the Indian Ocean (410 ± 19 years) in combination with the microbial respiration rate in the dark ocean (>200 m). Consistent to previous estimates in the global tropical and subtropical ocean, the FOM turnover time obtained is of the same order of magnitude as the circulation age of the Indian Ocean, indicating that the FOM is refractory and is a sink for reduced carbon in the dark ocean. A decoupling of FOM and AOU from the basin-scale relationship was also observed in the abyssal waters of the northern Indian Ocean. The local variability may be explained by the effect of sinking organic matter altered by denitrification through the oxygen-deficient zone on enhanced abyssal FOM production relative to oxygen consumption.

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“…gov/OC5/woa18/). Incluye información de 102 profundidades estándar para el océano, con una escala global y una resolución de 0.25º y 1º sobre temperatura (Locarnini et al, 2018), salinidad (Zweng et al, 2018), distribución climatológica de oxígeno disuelto, utilización aparente de oxígeno y saturación de oxígeno disuelto (Garcia et al, 2018a), distribución de nutrientes (fosfato, nitrato, nitrato+nitrito y silicato) (Garcia et al, 2018b).…”

Section: Cgiar Consortium Of Spatial Information (Cgiar-csi)unclassified

Por qué la geografía sí importa: Fuentes y consideraciones de la información ambiental en el proceso del modelado de nichos ecológicos y/o distribución de especies

Martínez

Ríos-Muñoz²,

Vega-Flores³

2020

Rev Latin Herp

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An inventory of Arctic Ocean data in the World Ocean Database

Abstract: Abstract. The World Ocean Database (WOD) contains over 1.3 million oceanographic casts collected in the Arctic Ocean basin and its surrounding marginal seas. The data come from many submitters and countries, and were collected using a

Cited by 99 publications

References 19 publications

Drivers of global pre‐industrial patterns of species turnover in planktonic foraminifera

Drivers of global pre‐industrial patterns of species turnover in planktonic foraminifera

Determining the Distribution of Fluorescent Organic Matter in the Indian Ocean Using in situ Fluorometry

Por qué la geografía sí importa: Fuentes y consideraciones de la información ambiental en el proceso del modelado de nichos ecológicos y/o distribución de especies

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