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BOTTOM WATER [7 records]

Record 1 2020-05-01

English

Subject field(s)
  • Hydrology and Hydrography
  • Oceanography
DEF

The cold dense water which lies at the bottom of the oceans in contact with the ocean floor having distinctly different characteristics from the water immediately above it.

CONT

Deep and bottom water masses. Deep water masses flow between the surface and intermediate water masses and the sea-bed; if the deepest water in contact with the sea-bed is distinguishable from the overlying water, it is referred to as bottom water.

OBS

It is formed in high latitudes as a result of the formation of sea ice.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Océanographie
DEF

Eau de mer, froide et dense, formée en surface dans les régions-sources proches des pôles et plongeant jusqu'aux profondeurs abyssales.

OBS

eau de fond : désignation habituellement utilisée au pluriel.

Key term(s)
  • eaux de fond

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
  • Oceanografía
DEF

Agua marina densa enfriada en la superficie de zonas polares, que desciende a profundidades abisales.

Save record 1

Record 2 2020-05-01

English

Subject field(s)
  • Hydrology and Hydrography
  • Oceanography
DEF

A water mass formed by deep winter convection at the coast of Antarctica, particularly in the Weddell and Ross Seas but also at other shelf locations.

CONT

The waters of the Atlantic Ocean, on the other hand, in the immediate vicinity of the Antarctic continent, especially around the Weddell Sea, reach extremely low temperatures particularly during winter. This low temperature, coupled with high salinity resulting from ice formation, causes the water mass to sink and flow along the ocean floor in a direction toward the equator. This water mass ... is called Antarctic bottom water ...

French

Domaine(s)
  • Hydrologie et hydrographie
  • Océanographie
CONT

Pendant l'hiver austral, au contraire, l'eau littorale antarctique est à une température aussi basse que possible, et elle est plus salée qu'en été, car la congélation de la banquise expulse du sel. Dense, elle plonge alors le long de l'escarpement continental, et va former sur le fond la masse dite eau antarctique de fond, que sa forte densité va faire s'insinuer sous toutes les autres masses d'eau océaniques, et se répandre, au prix d'altérations successives de ses caractères initiaux, jusqu'au-delà de l'équateur.

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
  • Oceanografía
OBS

Reproducido del "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", con la autorización de Unesco.

Save record 2

Record 3 2020-04-03

English

Subject field(s)
  • Hydrology and Hydrography
  • Oceanography
DEF

The water mass formed in the Arctic Ocean by a combination of freezing on the arctic shelf and deep winter convection in the Greenland and Norwegian Seas.

CONT

Freezing increases the salinity under the ice; the dense water sinks to the ocean floor and leaves the arctic basins to enter the Greenland and Norwegian Seas, where it mixes with water that sinks under the influence of surface cooling. The resulting water mass has a salinity of 34.95 psu [practical salinity unit] and a temperature of -0.8° to -0.9° C. It fills the Arctic Ocean at all depths below 800 m, the sill depth to the Atlantic. It enters the Atlantic in bursts, when the passage of atmospheric depressions lifts the thermocline and allows Arctic bottom water to flow over the sill.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Océanographie

Spanish

Save record 3

Record 4 2003-05-27

English

Subject field(s)
  • Hydrology and Hydrography

French

Domaine(s)
  • Hydrologie et hydrographie

Spanish

Save record 4

Record 5 2002-11-14

English

Subject field(s)
  • Oil Production
CONT

... existing process modifications (e.g. enhancements to novel processes such as COSH (combustion override split production horizontal well), SWSAGD (single well steam assisted gravity drainage), ESAGD (enhanced steam assisted gravity drainage), new sand control methodologies, or process modifications to deal with challenges posed by reservoirs with top gas and bottom water, abnormal permeabilities, reservoir thickness and depths, etc.

Key term(s)
  • reservoir with gas-cap and bottom water

French

Domaine(s)
  • Production pétrolière
OBS

réservoir avec chapeau de gaz (ou «gas-cap») et aquifère de fond. Ce type de réservoir est assez courant. La phase hydrocarbure liquide en conditions de fond (à la profondeur du réservoir) est surmontée d'une phase hydrocarbure gazeuse, et est elle-même située au-dessus d'une phase eau. Les trois phases se mettent en place naturellement de la plus lourde en bas à la plus légère en haut, simplement par différences de densités. La présence de deux phases pour l'hydrocarbure est liée aux conditions thermodynamiques de pression et de température qui existent dans le réservoir. [Source : de l'Institut français du pétrole, nov. 2002.]

Spanish

Save record 5

Record 6 2001-03-15

English

Subject field(s)
  • Petroleum Deposits
DEF

Water in oil wells that lies below, and is separated from, the productive sand.

DEF

Water occurring below the oil and gas in a producing formation.

French

Domaine(s)
  • Gisements pétrolifères
DEF

Eaux qui remplissent les pores de la roche magasin à la partie inférieure des gisements [...]

Spanish

Save record 6

Record 7 2000-02-16

English

Subject field(s)
  • Sonar and Underwater Detection (Military)

French

Domaine(s)
  • Sonar et détection sous-marine (Militaire)

Spanish

Save record 7

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