Wyrtki Jets
E864719
Wyrtki Jets are strong, eastward-flowing equatorial surface currents in the Indian Ocean that occur twice a year during the monsoon transition periods and play a key role in regional ocean-atmosphere dynamics.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
equatorial jet
ⓘ
ocean surface current ⓘ physical oceanography phenomenon ⓘ |
| affects |
coastal upwelling and downwelling patterns
ⓘ
mixed layer depth in the equatorial Indian Ocean ⓘ sea level along the eastern boundary of the Indian Ocean ⓘ |
| category |
Equatorial ocean dynamics
ⓘ
Ocean currents of the Indian Ocean ⓘ |
| drivingMechanism |
relaxation and reversal of monsoon winds
ⓘ
westerly wind bursts over the equatorial Indian Ocean ⓘ |
| dynamicalBalance |
equatorial Kelvin wave dynamics
ⓘ
pressure gradient force–Coriolis balance near the equator ⓘ |
| firstDescribedBy | Klaus Wyrtki NERFINISHED ⓘ |
| firstDescribedIn | 1960s ⓘ |
| flowDirection | eastward ⓘ |
| governingForces |
Coriolis force
ⓘ
pressure gradients ⓘ wind stress ⓘ |
| impact |
changes in upper-ocean stratification
ⓘ
modulation of air–sea fluxes ⓘ variability in rainfall over surrounding land regions ⓘ |
| latitudeRange | about 2°S to 2°N ⓘ |
| location | equatorial Indian Ocean ⓘ |
| namedAfter | Klaus Wyrtki NERFINISHED ⓘ |
| observedBy |
in situ moored current meters
ⓘ
ocean general circulation models ⓘ satellite altimetry ⓘ shipboard current measurements ⓘ |
| occursDuring |
boreal fall transition
ⓘ
boreal spring transition ⓘ monsoon transition periods ⓘ |
| ocean | Indian Ocean NERFINISHED ⓘ |
| relatedTo |
Indian Ocean Dipole
NERFINISHED
ⓘ
equatorial undercurrent ⓘ monsoon onset and withdrawal ⓘ |
| researchField |
climate dynamics
ⓘ
tropical oceanography ⓘ |
| roleInClimate |
influence on Indian Ocean Dipole events
ⓘ
influence on monsoon variability ⓘ modulation of sea surface temperature in the Indian Ocean ⓘ redistribution of heat along the equatorial Indian Ocean ⓘ |
| seasonality | semiannual ⓘ |
| temporalScale | events lasting several weeks ⓘ |
| typicalOccurrenceMonths |
April–May
GENERATED
ⓘ
October–November GENERATED ⓘ |
| typicalSpeed | up to about 1–2 m/s ⓘ |
| verticalExtent | upper 50–100 m of the ocean ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.