Skip to content

Adding scale_factor and add_offset for horiz_interp_and_extrap_tracer_record #960

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
adcroft merged 1 commit into from
Jul 23, 2019
Merged

Adding scale_factor and add_offset for horiz_interp_and_extrap_tracer_record #960

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 9 additions & 1 deletion src/framework/MOM_horizontal_regridding.F90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -303,6 +303,7 @@ subroutine horiz_interp_and_extrap_tracer_record(filename, varnam, conversion,
real, dimension(:), allocatable :: lat_inp, last_row
real :: max_lat, min_lat, pole, max_depth, npole
real :: roundoff ! The magnitude of roundoff, usually ~2e-16.
real :: add_offset, scale_factor
logical :: add_np
character(len=8) :: laynum
type(horiz_interp_type) :: Interp
Expand Down Expand Up @@ -376,6 +377,13 @@ subroutine horiz_interp_and_extrap_tracer_record(filename, varnam, conversion,
if (rcode /= 0) call MOM_error(FATAL,"error finding missing value for "//&
trim(varnam)//" in file "// trim(filename)//" in hinterp_extrap")

rcode = NF90_GET_ATT(ncid, varid, "add_offset", add_offset)
if (rcode /= 0) add_offset = 0.0

rcode = NF90_GET_ATT(ncid, varid, "scale_factor", scale_factor)
if (rcode /= 0) scale_factor = 1.0


if (allocated(lon_in)) deallocate(lon_in)
if (allocated(lat_in)) deallocate(lat_in)
if (allocated(z_in)) deallocate(z_in)
Expand Down Expand Up @@ -499,7 +507,7 @@ subroutine horiz_interp_and_extrap_tracer_record(filename, varnam, conversion,
do i=1,id
if (abs(tr_inp(i,j)-missing_value) > abs(roundoff*missing_value)) then
mask_in(i,j) = 1.0
tr_inp(i,j) = tr_inp(i,j) * conversion
tr_inp(i,j) = (tr_inp(i,j)*scale_factor+add_offset) * conversion
else
tr_inp(i,j) = missing_value
endif
Expand Down