Hi John,
Thank you for your feedback. Let me propose the following amended
definition.
The average radius of a central region of clouds in tropical cyclones
lacking well-defined eye features
which is computed by averaging the great circle distance in four
cardinal directions. The radius
in each direction is measured from the estimated storm center position
to a warm point that exceeds
a threshold temperature limit.
Sincerely,
Gary
On 4/16/2014 2:24 PM, John Graybeal wrote:
Hi Gary,
I get a little nervous about re-usability when I see specific numbers (like
300km and -30C) in a definition. They prompt two questions:
1) Is it clear that the community always uses these exact numbers (or so often
that they are a de facto standard)?
2) Why is it necessary to say 'to pixels within 300km'? Why isn't the
temperature limit enough?
John
On Apr 16, 2014, at 11:13, Gary Meehan<[email protected]> wrote:
Dear CF Board,
I would like to propose the following standard name.
Standard Name: radius_of_tropical_cyclone_central_dense_overcast_region
Dimensions: meter
Definition:
The average radius of a central region of clouds in tropical cyclones
lacking well-defined eye features. The radius is computed by averaging
the great circle distance in four cardinal directions from the estimated
storm center position to pixels within 300km, where cloud top brightness
temperature first exceeds -30 Celsius.
Sincerely,
Gary Meehan
--
Gary Meehan
Senior Staff Scientist
Atmospheric and Environmental Research
131 Hartwell Avenue, Lexington, MA 02421-3126
Tel (781) 761-2228 • Fax (781) 761-2299
e-mail:[email protected]
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------------------------------------
John Graybeal
Marine Data Manager
M +1 408 675-5445
skype: graybealski
Marinexplore
920 Stewart Drive
Sunnyvale 94085
California, USA
www.marinexplore.com
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--
Gary Meehan
Senior Staff Scientist
Atmospheric and Environmental Research
131 Hartwell Avenue, Lexington, MA 02421-3126
Tel (781) 761-2228 • Fax (781) 761-2299
e-mail:[email protected]
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