Indian Ocean Deep Water
E859689
Indian Ocean Deep Water is a cold, dense water mass found at great depths in the Indian Ocean, formed primarily from Antarctic sources and playing a key role in global thermohaline circulation.
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
deep water mass
ⓘ
water mass ⓘ |
| affects |
long-term climate variability
ⓘ
sea level through deep ocean density structure ⓘ |
| ageCharacteristic | relatively old water compared to surface waters ⓘ |
| basin | Indian Ocean NERFINISHED ⓘ |
| circulationRole |
component of global thermohaline circulation
ⓘ
northward flowing deep current in Indian Ocean ⓘ part of global overturning circulation ⓘ |
| climateChangeRelevance |
important for long-term sequestration of anthropogenic CO2
ⓘ
indicator of changes in Southern Ocean deep water formation ⓘ |
| connectedTo |
Atlantic Deep Water via Southern Ocean pathways
ⓘ
Pacific Deep Water via Southern Ocean pathways ⓘ |
| contains |
dissolved inorganic carbon from surface waters of Antarctic origin
ⓘ
tracers such as CFCs and radiocarbon used to estimate its age ⓘ |
| densityCharacteristic | high density ⓘ |
| formationProcess |
deep convection
ⓘ
mixing of Antarctic source waters ⓘ |
| formedFrom |
Antarctic Bottom Water
NERFINISHED
ⓘ
Antarctic Intermediate Water NERFINISHED ⓘ Circumpolar Deep Water NERFINISHED ⓘ |
| influences |
deep ocean carbon storage in the Indian Ocean
ⓘ
deep ocean heat transport in the Indian Ocean ⓘ nutrient distribution at depth in the Indian Ocean ⓘ |
| layerPosition |
above Antarctic Bottom Water in parts of the Indian Ocean
ⓘ
below Antarctic Intermediate Water in the Indian Ocean ⓘ |
| monitoredBy |
Argo-type profiling floats capable of deep measurements
ⓘ
deep ocean moorings ⓘ hydrographic sections ⓘ |
| ocean | Indian Ocean NERFINISHED ⓘ |
| partOf | global deep ocean water mass structure ⓘ |
| primarySourceRegion |
Antarctic region
ⓘ
Southern Ocean NERFINISHED ⓘ |
| researchField |
climate science
ⓘ
physical oceanography ⓘ |
| salinityCharacteristic | relatively high salinity for deep water ⓘ |
| temperatureCharacteristic | near-freezing temperatures ⓘ |
| transportDirection | generally northward from Antarctic source regions ⓘ |
| typicalDepthRange |
abyssal depths
ⓘ
below 2000 m ⓘ |
| ventilationTimescale | hundreds of years ⓘ |
| waterMassProperty |
high nutrient concentration relative to surface waters
ⓘ
low oxygen concentration relative to surface waters ⓘ |
| waterMassType |
cold
ⓘ
dense ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.