This dawn , orbiter passing over the Atlantic got several unbelievable shot of category 4 hurricane Igor , whose cloudless oculus is 20 nautical statute mile panoptic . What make Igor such a monolithic , strong hurricane ? Infrared measurement revealed the reply .
hurricane are fueled by warm amniotic fluid and tropical storms , which interact to create regions of warm air that power the whirling storm . Right now , Igor is a pure example of heated ocean interact with freezing thunderheads .
According to NASA :
When NASA ’s Aqua artificial satellite lapse over Igor on Sept. 14 at 14:47 UTC ( 10:47 a.m. EDT ) the Atmospheric Infrared Sounder ( AIRS ) instrument seize arctic frigid cloud top temperatures in the firm thunderstorm that surround Igor ’s well - define eye . Those cloud top temperatures were as cold or colder than -90F , point they were near the top of the troposphere , and very strong .
The infrared imagery also showed the warmer , open 20 nautical - naut mi extensive eye ( because it was not cloud - filled ) . In addition , AIRS draw a interpretation on the sea surface temperature around Igor , which were all strong than the 80F doorstep needed to maintain a tropical cyclone , so Igor has a good energy source for the next 24-hour interval or two . So , the dispute between Igor ’s cold swarm top temperatures and the warm ocean open waters that are power it are bully than 170 stage Fahrenheit !
translate more about Igor viaNASA ’s Earth Observatory
earth scienceWeather
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