Saharan Air Layer
E829127
The Saharan Air Layer is a hot, dry, and dusty air mass that forms over the Sahara Desert and moves westward over the Atlantic, often suppressing tropical cyclone development and affecting weather and air quality across the ocean and adjacent regions.
Statements (64)
| Predicate | Object |
|---|---|
| instanceOf |
air mass
ⓘ
atmospheric phenomenon ⓘ dust layer ⓘ |
| affectsAirQuality |
degraded visibility
ⓘ
haze events ⓘ increased particulate matter concentrations ⓘ |
| affectsHealth |
allergy symptoms
ⓘ
asthma exacerbation ⓘ respiratory irritation ⓘ |
| affectsRadiation |
aerosol radiative forcing
ⓘ
increased atmospheric scattering ⓘ reduced surface solar radiation ⓘ |
| affectsRegion |
Canary Islands
NERFINISHED
ⓘ
Cape Verde region NERFINISHED ⓘ Caribbean Sea NERFINISHED ⓘ Central America NERFINISHED ⓘ Gulf of Mexico NERFINISHED ⓘ eastern United States NERFINISHED ⓘ northern South America ⓘ tropical Atlantic Ocean NERFINISHED ⓘ |
| affectsWeather |
enhanced trade wind inversion
ⓘ
increased vertical wind shear ⓘ reduced convection ⓘ stabilization of lower troposphere ⓘ suppressed thunderstorm activity ⓘ suppression of tropical cyclone development ⓘ |
| associatedWith |
African easterly jet
NERFINISHED
ⓘ
African easterly waves ⓘ |
| characterizedBy |
dry air
ⓘ
high dust concentration ⓘ hot air ⓘ low relative humidity ⓘ strong easterly winds ⓘ strong temperature inversion ⓘ |
| deposits |
nutrients to the Amazon Basin
ⓘ
nutrients to the Atlantic Ocean ⓘ |
| formsOver |
North Africa
NERFINISHED
ⓘ
Sahara Desert NERFINISHED ⓘ |
| formsSeason |
early autumn
ⓘ
late spring ⓘ summer ⓘ |
| hasAlternativeName | SAL NERFINISHED ⓘ |
| influences |
Atlantic hurricane activity
ⓘ
cloud microphysics ⓘ ocean biogeochemistry ⓘ |
| locatedAbove | Atlantic marine boundary layer ⓘ |
| monitoredBy |
aerosol optical depth measurements
ⓘ
lidar instruments ⓘ radiosonde soundings ⓘ satellite observations ⓘ |
| movesDirection | westward ⓘ |
| overlies | marine boundary layer ⓘ |
| relatedTo |
Calima events in the Canary Islands
ⓘ
Saharan dust outbreaks ⓘ |
| strongestDuring | boreal summer ⓘ |
| studiedInField |
aerosol science
ⓘ
atmospheric chemistry ⓘ climatology ⓘ meteorology ⓘ |
| transports |
Saharan dust
ⓘ
iron-rich particles ⓘ mineral aerosols ⓘ |
| typicalAltitudeRange |
1500–6000 meters
ⓘ
5000–20000 feet ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.