The World Ocean Database

Levitus, Sydney; Antonov, John I.; Baranova, O; Boyer, Timothy P.; Coleman, Camille; Garcia, Hernan E.; Grodsky, A.; Johnson, D. R.; Locarnini, R. A.; Mishonov, Alexey V.; Reagan, James R.; Sazama, C. L.; Seidov, Dan; Smolyar, I; Yarosh, E. S.; Zweng, Melissa M.

doi:10.2481/dsj.wds-041

Cited by 155 publications

(154 citation statements)

References 4 publications

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“…Monthly mean temperature and salinity climatologies, obtained from the World Ocean Database (http://www.nodc.noaa.gov/OC5/WOD13/) [Levitus et al, 2013] at 1 ∘ spatial resolution, are used to examine differences between temperature averaged over a variable mixing length (T dy , defined later in this section), T100, and SST (Figure 1). Monthly mean temperature and salinity data at 1 ∘ spatial resolution from Argo floats are obtained from http://www.argo.ucsd.edu/Gridded_fields.html [Roemmich and Gilson, 2009] and used to estimate the mixed layer depth, T dy , T100, and SST.…”

Section: Data Model and Methodsmentioning

confidence: 99%

“…The PI computed using T dy , which we define as the "dynamic potential intensity" (DPI), includes the storm intensity through u * , the storm speed through U, the ocean stratification through , and the ocean heat content through T(z), in a single expression and is thus more comprehensive than previous PI formulations. Figure 2a shows T dy using climatological ocean data [Levitus et al, 2013] for a category-3 TC, with maximum sustained winds of 50 m s −1 (midway between a tropical storm and category-5 TC) and traveling at a typical speed of 5 m s −1 . The large-scale spatial pattern of T dy is reasonable, with relatively high T dy in regions traditionally favoring TC development [Gray, 1968].…”

Section: Geophysical Research Lettersmentioning

confidence: 99%

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Dynamic Potential Intensity: An improved representation of the ocean's impact on tropical cyclones

Balaguru

Foltz

Leung

et al. 2015

Geophysical Research Letters

116

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To incorporate the effects of tropical cyclone (TC)‐induced upper ocean mixing and sea surface temperature (SST) cooling on TC intensification, a vertical average of temperature down to a fixed depth was proposed as a replacement for SST within the framework of air‐sea coupled Potential Intensity (PI). However, the depth to which TC‐induced mixing penetrates may vary substantially with ocean stratification and storm state. To account for these effects, here we develop a “Dynamic Potential Intensity” (DPI) based on considerations of stratified fluid turbulence. For the Argo period 2004–2013 and the three major TC basins of the Northern Hemisphere, we show that the DPI explains 11–32% of the variance in TC intensification, compared to 0–16% using previous methods. The improvement obtained using the DPI is particularly large in the eastern Pacific where the thermocline is shallow and ocean stratification effects are strong.

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Section: Data Model and Methodsmentioning

confidence: 99%

Section: Geophysical Research Lettersmentioning

confidence: 99%

Dynamic Potential Intensity: An improved representation of the ocean's impact on tropical cyclones

Balaguru

Foltz

Leung

et al. 2015

Geophysical Research Letters

116

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“…For instance, in the modern tropical Caribbean, reproduction of G. truncatulinoides is inhibited by strong thermocline in well-stratified waters (Schmuker and Schiebel, 2000). This is in contrast to the subtropical N. Atlantic where winter sea surface cooling (T<23°C) and deep mixing occur alongside with increase of G. truncatulinoides 230 up to 15% (Levitus et al, 2013;Siccha and Kučera, 2017). It could, therefore, be proposed that the overall abundance of G. truncatulinoides in our subtropical settings was at least partly controlled by oceanic conditions occurring nearer to the sea surface (Mulitza et al, 1997;Jonkers and Kučera, 2016).…”

Section: Terminationmentioning

confidence: 79%

The last interglacial (MIS 5e) cycle at Little Bahama Bank: A history of climate and sea-level changes

Zhuravleva

Bauch

2018

Preprint

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Abstract. Shallow-water sediments of the Bahama region containing the last interglacial (MIS 5e) are ideal to investigate the region's sensitivity to past climatic and sea level changes. Here we present new faunal, isotopic and XRF-sediment core data 10 from the northern slope of the Little Bahama Bank. The results suggest that the bank top remained flooded across the last interglacial "plateau", ~129-117 ka, arguing for a relative sea level above -6 m for this time period. In addition, climatic variability, which today is closely coupled with movements of the intertropical convergence zone (ITCZ), is interpreted based on stable isotopes and foraminiferal assemblage records. During early MIS 5e, the mean annual ITCZ position moved northward in line with increased solar forcing and a recovered Atlantic Meridional Overturning Circulation (AMOC). The 15 early MIS 5e warmth peak was intersected, however, by a millennial-scale cooling event, consistent with a southward shift in the mean annual ITCZ position. This tropical shift is ascribed to the transitional climatic regime of early MIS 5e, characterized by persistent high-latitude freshening and, thereby, unstable AMOC mode. Our records from the Bahama region demonstrate that not only was there a tight relation between local sedimentation regimes and last interglacial sea level history, via the atmospheric forcing we could further infer an intra-interglacial connectivity between the polar and subtropical latitudes that 20 left its imprint also on the ocean circulation.

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“…Se usaron datos climatológicos del Ocean Data view (ODv) desde 1900 (Levitus et al, 2013), compilados en la base de datos hasta el 2009, para extraer los parámetros de interés para realizar este artículo. Se seleccionaron perfiles en la columna de agua, en transectos latitudinales y longitudinales alrededor del Domo Térmico de Costa Rica (9.5º N -89.5º W), para mostrar la variación anual de los datos en esta región (Fig.…”

Section: Materiales Y Métodosunclassified

Distribución espacio-temporal de la temperatura, salinidad y oxígeno disuelto alrededor del Domo Térmico de Costa Rica

Lizano

2016

RBT

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Spatio-temporal distribution of temperature, salinity and dissolved oxygen around the Costa Rica Thermal Dome. The Costa Rica Thermal Dome (CRTD) is an oceanographic phenomenon in the Eastern Tropical Pacific (ETP). This is a region of very high biological productivity, resulting in high concentrations of phytoplankton, sea birds, and large pelagics, such as tunas, dolphins and whales. Few publications have looks at the station variability of the water column of the CRTD. Here, horizontal and vertical distribution of some oceanic parameters was analyzed to show the dynamics of ETP, its influence on the CRTD, climatic variations and relationships that justify their distributions. Climatological monthly mean data of Ocean Data view (ODv) from 1900 to 2009 were used to compile profiles of the water column's temperature, salinity and dissolved oxygen, and their spatial distributions around the Costa Rica Thermal Dome (CRTD). Monthly variations of these parameters depend on the intensity and extent of ocean-meteorological phenomena in the Eastern Tropical Pacific (ETP), which are related to the north-south migration of Intertropical Convergence Zone (ITCZ). The monthly climatic variation of these variables is analyzed down to 200 m depth. Increased climate variability is found in the water column at stations north and east of the CRTD. The two stations north of the CRTD, closer to the coast, are the ones most affected by the wind in front of the Gulf of Papagayo and where the greatest monthly upwelling variation occurs in this region. The distribution and concentration of dissolved oxygen depends on the ocean-atmospheric dynamics. Oxygen is consumed by respiration and organic matter oxidation around CRTD. Moreover, this is one of the regions of the tropical oceans where an Oxygen Minimum Zone (OMZ) exist, which is related also to poor water circulation or lack ocean ventilation. Sources of dissolved oxygen are linked with sub-surface currents coming from the west and from the south of the geographic equator. Rev. Biol. Trop. 64 (Suppl. 1): S135-S152. Epub 2016 February 01.

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The World Ocean Database

Cited by 155 publications

References 4 publications

Dynamic Potential Intensity: An improved representation of the ocean's impact on tropical cyclones

Dynamic Potential Intensity: An improved representation of the ocean's impact on tropical cyclones

The last interglacial (MIS 5e) cycle at Little Bahama Bank: A history of climate and sea-level changes

Distribución espacio-temporal de la temperatura, salinidad y oxígeno disuelto alrededor del Domo Térmico de Costa Rica

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