#####
createRandomStart copy a start.nc file and change ucov, vcov, teta variables:
	teta -> teta +/- dTeta (K)
	ucov -> (0 +/- duNat)*cu (m/s)
	vcov -> (0 +/- dvNat)*cv (m/s)
Perturbations are vertically the same.

#####Compilation
In compile, may have to change the path of netcdf library compiled with gfortran.
To compile:
./compile createRandomStart