change (once again) the discretization for the evp solver: rather than    squaring the averages of strain rates, average the squares to give    a better approximation to VP behavior (in simple test); this breaks    verification experiments that use EVP (lab_sea and lab_sea.hb87)
change (once again) the discretization for the evp solver: rather than
   squaring the averages of strain rates, average the squares to give
   a better approximation to VP behavior (in simple test); this breaks
   verification experiments that use EVP (lab_sea and lab_sea.hb87)

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h