Seasonality and partitioning of Total Heat Transport

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Seasonality and partitioning of Total Heat
Transport
5.9 PW
5.7 PW
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Two Box Model
SOLAR
HIGH LATITUDES
OLR
TROPICS
NET
Heat Transport
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What is the solar contribution?
Assume OLR equals the global mean in both boxes
SOLAR
HIGH LATITUDES
OLR
TROPICS
NET
Heat Transport
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8.8 PW
8.2 PW
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What is the OLR contribution?
Assume SOLAR equals the global mean in both boxes
SOLAR
HIGH LATITUDES
OLR
TROPICS
NET
Heat Transport
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3.1 PW
2.3 PW
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Surface Heat Flux Contribution

• Only relevant to seasonal calculations

Winter Schematic
Surface Heat Flux
HIGH LATITUDES
TROPICS
Heat Transport
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Seasonal Schematic
WINTER
HIGH LATITUDES
NET RADIATION
TROPICS
Surface Heat Flux
Heat Transport
SUMMER
HIGH LATITUDES
TROPICS
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Partitioning of Heat Transport
Transient Eddies (Storm Tracks)
Mean Meridional Circulations (MMC)
Heat Transport
W/m
STATIONARY WAVES
Temp. Anom. (K)
Meridional Wind Anomaly
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Seasonal Partitioning of Heat Transport
PW
PW
PW
PW
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Seasonal Partitioning of heat transport at
latitude of max heat flux