[Coral-List] Coral Surface Area

[Judith Lang]

Hi Tyler,
According to Fisher (2007, p. 53), the surface area of a massive  
hemisphere can approximated as 2 times pi times the square of r  
(radius), where r is estimated as the average of all three dimensions,  
(i.e., LWH)/3).
Cheers,
Judy
Fisher, WS 2006. Stony Coral Rapid Bioassessment Protocol. EPA /600/ 
R-06/167






On Apr 7, 2008, at 12:09 PM, Tyler Smith wrote:

> Hi Listers,
> Has anyone had experience with modeling coral surface areas from
> field data?
>
> I have maximum width, the width perpendicular to maximum width, and
> height.  I want to assume that the horizontal plane is an ellipsoid,
> which is no problem, but I am having trouble locating a formula that
> will produce a 3-D mound from the ellipsoid.  In the end I want
> surface area of the mound.
>
> Cheers,
> Tyler
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Tyler B. Smith, Ph.D.
> Assistant Professor
> Center for Marine and Environmental Studies
> University of the Virgin Islands
> 2 John Brewers Bay
> St. Thomas, USVI       00802
> USA
> office: 340-693-1394
> fax:     340-693-1385
>
>
>
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