UNCLASSIFIED
UNCLASSIFIED
Abbreviations:
Surrounding
Ring
Temperature
Eye
Temperature
WMG Warm
Medium Gray
OW Off
White
DG Dark
Gray
MG Medium
Gray
LG Light
Gray
B Black
W White
CMG Cold
Medium Gray
CDG Cold
Dark Gray
• Each abbreviation on the EIR Eye adjustment
chart comes from the
BD enhancement curve, which Dvorak developed and used
for EIR analysis on Tropical
Cyclones (TC).
• Each color is directly correlated to a
temperature range.
• It is standard to use these shortened color
terms rather that the temperature
values themselves in TC Analysis. 