Convective momentum transport
Convective momentum transport usually describes a vertical flux of the momentum of horizontal winds or currents. That momentum is carried like a non-conserved flow tracer by vertical air motions in convection.
In the atmosphere, convective momentum transport by small but vigorous (cumulus type) cloudy updrafts can be understood as an interplay of three main mechanisms:
- Vertical advection of ambient momentum due to subsidence of environmental air that compensates the in-cloud upward mass flux,
- Detrainment of in-cloud momentum where updrafts stop ascending,
- Accelerations by the pressure gradient force around clouds whose inner momentum differs from their environment.
The net effect of these interacting mechanisms depends on the detailed configuration or 'organization' of the convective cloud or storm system.
See also
- momentum
- vertical motion
References
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Meteorological data and variables
- Adiabatic processes
- Advection
- Buoyancy
- Lapse rate
- Lightning
- Surface solar radiation
- Surface weather analysis
- Visibility
- Vorticity
- Wind
- Wind shear
- Convective available potential energy (CAPE)
- Convective inhibition (CIN)
- Convective instability
- Convective momentum transport
- Conditional symmetric instability
- Convective temperature (Tc)
- Equilibrium level (EL)
- Free convective layer (FCL)
- Helicity
- K Index
- Level of free convection (LFC)
- Lifted index (LI)
- Maximum parcel level (MPL)
- Bulk Richardson number (BRN)
- Dew point (Td)
- Dew point depression
- Dry-bulb temperature
- Equivalent temperature (Te)
- Forest fire weather index
- Haines Index
- Heat index
- Humidex
- Humidity
- Relative humidity (RH)
- Mixing ratio
- Potential temperature (θ)
- Equivalent potential temperature (θe)
- Sea surface temperature (SST)
- Temperature anomaly
- Thermodynamic temperature
- Vapor pressure
- Virtual temperature
- Wet-bulb temperature
- Wet-bulb globe temperature
- Wet-bulb potential temperature
- Wind chill
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