Part 4 Flashcards
ADT rms error
11 knots
Category 3 damage
Devastating well built homes many trees electricity and water unavailable for weeks
Storm surge factors
Intensity size, forward speed angle of approach width and slope of shelf
Sufficient ocean thermal energy
> 26C to a depth of 60m
Tropical waves
Cyclonically curved wind systems 70% of Atlantic basin formations most major hurricanes originate over Ethiopian plateau highlands vertically deep and shear resistant background flow + eddy flow = tropical wave
Aidt limitations
No best track intensity estimates based on reconnaissance or actual ground truth data verifying a model by itself and other models is a poor verification technique
What can help amplify tropical waves that develop and most westward away from the Ethiopian plateau
Horizontal cyclonic speed shear located on the southern or equatorial side of the aemjl
Category l damage
Roof damage large tree branches/shallow rooted trees damage to power lines/ poles - outages for a few days
October storms
2-3 Cape Verde season ends western Atlantic Caribbean Gom
Dvorak technique
Statistical method for estimating intensity of a tropical cyclone from subjective interpretations Ir and vis imagery
Subjective Dvorak technique
ADT based upon
Due to earth’S rotation on a titled axis
Air is deflected right in the nor them hemisphere (coriolis)
Category 4 damage
Catastrophic severe home damage most trees and power lines down outages for weeks to months
Ingredients for tropical cyclone formation (pre-existing disturbances)
Tropical waves (70% of Tc formations) decaying frontal systems upper-level lows / extra tropical lows mesoscale convective system
What happens when hear is added at the equator to the Hadley cell
Heating causes the pressure surfaces to expand upwards creating high pressure aloft and relatively low pressure over the pole
