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ctsm5.2.0

ctsm5.2.0: New surface datasets and new mksurfdata_esmf tool to create them
@ekluzek ekluzek tagged this 20 Apr 06:39 
Changes to CTSM:
================

All new surface datasets. Transient urban and lake by default turned on
for transient cases.
Ocean is run as baresoil rather than wetland (for clm6_0). The urban
streams file was also
updated. The new surface datasets have new updated input datasets (see
below).

Update the README files.

New surface datasets:
=====================

The new surface datasets are incompatible with previous versions (for
example the ctsm5.1 series)
ctsm5.2.0 and following versions also can NOT use the previous ctsm5.1
datasets.

See the section below about the new datasets used in their creation.
Improvements in how landunits
on coastal areas was also done.

The following fields were added and removed to the list of fields on the
datasets.

Fields added:
   ORGC, BULK, CFRAG, PHAQ (soil data) (currently NOT used by CTSM)
   mapunits (map units from the soil dataset)
   LANDFRAC_MKSURFDATA (for reference NOT used by CTSM)
   PCT_OCEAN (previously PCT_WETLAND was used)

Fields removed:
   AREA, PFTDATA_MASK

New mksurfdata_esmf Tool:
=========================

Implement a parallel version of mksurfdata (mksurfdata_esmf) that uses
ESMF regridding directly
in mksurfdata so that offline mapping files don't have to be created as
a separate step. This
allows mksurfdata to create surface datasets at much higher resolutions

The build for the tool is based on the CESM/CIME build system and uses
cmake. This allows the build
to be kept up with changes in CESM. Currently it's only setup and
working on Derecho. But, this design
will enable it to be built and run on any CESM supported machine (or a
machine that a user ports to).

Any input grid from ccs_config can be used, or the user can supply their
own mesh file to define
the output grid. The user no longer has to add to the list of valid
resolutions as in mksurfdata_map.

Creation of supported single point datasets. These datasets are created
through the use of subset_data.

Test datasets for dynUrban, dynLake, and dynPFT is done with a simple
NCO script.

All datasets can be easily made by running "make all" in the
tools/mksurfdata_esmf directory.

For instructions see:
    tools/mksurfdata_esmf/README.md

New input datasets to mksurfdata_esmf:
======================================

New soil dataset: ISRIC/WISE dataset Batjes (2016)
https://doi.org/10.1016/j.geoderma.2016.01.034
New PFT, soil-color, LAI dataset: Created by Lawrence P.J. 2022
New Glacier datasets: Glacier outlines from RGI version 6 (Arendt et
al., 2017).
   vector data for GrIS and AIS retrieved from BedMachine version 4 and
version 2 (Morlighem et al., 2017, 2020), respectively.
   30-arcsec topography/land mask retrieved GMTED2010 (Danielson and
Gesch, 2011).
New urban datasets:  Gao and O'Neill (2021) and Gao and Pesaresi (2022),
Oleson and Feddema (2020)
New lake datasets: HydroLake: Messager et. al. (2016)
Assets 2
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