GEOS-5 Documentation for Icarus 3.2

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This page lists pages with information on setting up and running GEOS-5 Icarus 3.2. Earlier and later versions of GEOS-5 may differ in details that, while minor, will require different steps for building and running, so caveat utilitor.

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ChangeLog Entry

In src/Applications/GEOSgcm_App/ChangeLog: 

==========================================================================
---------, Takacs,    CVS Tag: Icarus-3_2 (zero-diff to Icarus-3_1 when NOT running Brown Carbon)
                       Module: GEOSagcm
------------------------------------------------------------------------------
1) Merge with tag:  asd+Icarus-3_0_UNSTABLE-a2  to allow option for Brown Carbon
2) Enable IAU_DIGITAL_FILTER as default for DAS and REPLAY modes. (non-zero diff)
3) Changed BKGAVE default to 0 (from 2/3 * CORRECTOR_DURATION).   (non-zero diff)
   A better approach is to use:  IAU_DIGITAL_FILTER: YES

Restart Changes: none

==========================================================================
---------, Takacs,    CVS Tag: Icarus-3_1 (zero-diff to Icarus-3_0 when NOT running NewLand)
                       Module: GEOSagcm
------------------------------------------------------------------------------
1) Implement Code to enable option for running NewLand


==========================================================================
04Oct2017, Takacs,    CVS Tag: Icarus-3_0 (non-zero diff to Icarus-2_0_p1)
                       Module: GEOSagcm
------------------------------------------------------------------------------
1) Implement R8 version of FV3 VLAB p3 dynamics. Note, current R4 version loses Dry-Mass. R8 version conserves.
2) Updated Single-Moment Physics (MOIST Processes)
3) AGCM now runs RRTMG Shortwave Radiation and Chou-Suarez Longwave Radiation by default (NOTE: cannot use old solar_internal restarts)
4) Implement cubic time-interpolation option for MKIAU in REPLAY (Default: Linear)
5) Updates to MAPL_Base and MAPL_cfio
6) Updates to QuickPlots
7) Implement bugfix to cloudnew.F90 as in Icarus-1_0_p2
8) Changed Dry-Mass value in rs_scale.F90 from 983.24 mb (MERRA-2 value) to 983.05 mb due to use of GMTED topography.
   Mean TOPO difference:  1.58436898227561 meters
   Note: 983.05 mb is very similar to value based on ERA-Interim data.
9) Modified GEOS_TurbulenceGridComp.F90 with more REAL*8 code to improve Dry-Mass Conservation
10) Due to updated FVCORE, GWD BGSTRESSMAX Default changed from 1.2 to 0.9 for 72-levels (Note: 132-levels probably requires re-tuning).

NOTE:  Regular REPLAY to itself FAILS under certain Predictor/Corrector configurations.
      (Reason UNKNOWN)  P3_C6 and P0_C1 seem to work properly.

Restart Changes: YES
                 RRTMG requires new solar_internal restart.
                 Simply delete old restart, and bootstrap new RRTMG restart.


==========================================================================
24Aug2017, Takacs,    CVS Tag: Icarus-2_0_p1 (non-zero diff to Icarus-2_0)
                       Module: GEOSagcm
------------------------------------------------------------------------------
1) Implement bugfix to cloudnew.F90.
   A "typo" error was introduced into Icarus-1_0 when incorporating Tag: mjs100__msuarez to inhibit SNOW during thunderstorms.
   The impact of the error directly affected cloud-liquid water and low-level optical depths.
2) Changed Dry-Mass value in rs_scale.F90 from 983.24 mb (MERRA-2 value) to 983.05 mb due to use of GMTED topography.
   Mean TOPO difference:  1.58436898227561 meters
   Note: 983.05 mb is very similar to value based on ERA-Interim data.

Restart Changes: none


==========================================================================
12Jun2017, Takacs,    CVS Tag: Icarus-2_0 (non-zero diff to Icarus-1_0_p1)
                       Module: GEOSagcm
------------------------------------------------------------------------------
1) Updates from E.Nielsen to remove TR dependence on GMI.
2) GMI Updates to Stratospheric ICE fall speeds.
3) Introduce new terminology for Regular REPLAY (REPLAY_PREDICTOR, REPLAY_CORRECTOR, etc.)
4) Implement Anton's 2-Phase GOCART Tag: asd-Icarus-UNSTABLE-a3
5) Modified PHYSICS dry-mass dwdt calculation to reduce roundoff error
6) Implement Ensemble AMIP (EMIP) strategy within gcm_run.j
7) Modified MKIAU to allow creating Increments on BKG grid.  Default is: GRIDINC = ANA

Restart Changes: YES
        Additional IMPORT Restart: gocart_import_rst (Bootstrappable)

Running Icarus 3.2

  • Icarus 3.2 Quick Start: This page describes the minimum steps required to build and run GEOS-5 Icarus 3.2 on NCCS discover and NAS pleiades. You should successfully complete the steps in these instructions before doing anything more complicated.

Icarus 3.2 Documentation

  • Hierarchical structure: Below is a (partially folded) view of the Icarus 3.2 hierarchy where each node is a GridComp. Some of the nodes are folded (marked with a circle at the end) for clarity - clicking the composite node reveals the sub-nodes.


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