[Shake-dev] Updates to ShakeMap

[Bruce Worden]

Hi Folks,

I've updated the code in the ShakeMap repository. There are quite a  
few under-the-hood changes to fix bugs or improve performance and  
accuracy. I've also added or modified a number of modules. Of note:

o Added the GMPE A10Hawaii, based on Gail Atkinson's 2010 GMPE for  
Hawaii. (Possibly this will not be particularly useful to a lot of  
you. It does, however, represent an example of a referenced GMPE --  
i.e., one that acts to modify another GMPE (in this case BA08) to make  
it suitable for a different region.)

o Revised the TA09 IPE to be consistent with Trevor Allen's recent  
draft of his IPE paper. The coefficients and formulation of the  
original model based on distance-to-rupture (Rrup) have changed  
somewhat, but he has also added a hypocentral distance (Rhypo)  
regression. The module will now use the Rhypo version for events where  
a fault is unspecified, which will override the use of the median- 
distance formula that is normally used under these conditions. In  
addition, the new version also includes an IPE-native site correction  
function.

o Added a ground motion/intensity conversion equation (GMICE) module  
FM10, based on the Faenza and Michelini, 2010 GMICE. This module  
produces MCS intensity, not MMI.

o Revised and generalized the way the intensity scale legend is  
produced, making it easier to add new GMICE.

o Revised the intensity-to-pgm sigma in Wald99. This will only affect  
you if you both a) use intensity data as input to your maps, and b)  
use Wald99 as your GMICE. The new, more correct, sigma will result in  
the PGMs obtained from converting intensity observations having  
somewhat more weight in the PGM maps. The previous sigmas were from  
another study, the new ones were obtained by plugging the forward  
sigmas into the inverse equation.

You can see a complete list of changes by running 'svn log'  on the  
central repository, or by updating first and running 'svn log' on your  
own repository. As usual, 'svn update' gets the new code.

Bruce