From 8c31fe2606ca085001a19cc4933f4901ceaf9311 Mon Sep 17 00:00:00 2001
From: Matthew Thompson <matthew.thompson@nasa.gov>
Date: Tue, 10 Feb 2026 12:35:34 -0500
Subject: [PATCH] v5: Add ISSM modules at NCCS and NAS

---
 CHANGELOG.md |  7 +++++++
 g5_modules   | 12 +++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index aae63c7..c60a1db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Removed
 ### Added
 
+## [5.18.0] - 2026-02-10
+
+### Changed
+
+- Added ISSM module at NCCS and NAS
+  - This is for on-going testing and development of ISSM in GEOS. In the model, ISSM is an optional build, so for now we only support at our operational sites.
+
 ## [5.17.0] - 2026-01-02
 
 ### Changed
diff --git a/g5_modules b/g5_modules
index 9cb5563..757d04e 100755
--- a/g5_modules
+++ b/g5_modules
@@ -140,7 +140,9 @@ if ( $site == NCCS ) then
    set mod5 = mpi/impi/2021.13
    set mod6 = other/jemalloc/5.3.0
 
-   set mods = ( $mod1 $mod2 $mod3 $mod4 $mod5 $mod6 )
+   set mod7 = other/ISSM/2026-02-09/ifort_2021.13.0-intelmpi_2021.13.0
+
+   set mods = ( $mod1 $mod2 $mod3 $mod4 $mod5 $mod6 $mod7 )
    set modinit = /usr/share/modules/init/csh
 
    set usemod1 = /discover/swdev/gmao_SIteam/modulefiles-SLES15
@@ -165,7 +167,9 @@ else if ( $site == NAS ) then
       set mod4 = comp-intel/2024.2.0-ifort
       set mod5 = mpi-hpe/mpt
 
-      set mods = ( $mod1 $mod2 $mod3 $mod4 $mod5 )
+      set mod6 = other/ISSM/2026-02-10/ifort_2021.13.0-mpt_2.30
+
+      set mods = ( $mod1 $mod2 $mod3 $mod4 $mod5 $mod6 )
       set modinit = /usr/share/modules/init/tcsh
 
       set usemod1 = /u/scicon/tools/modulefiles
@@ -186,7 +190,9 @@ else if ( $site == NAS ) then
       set mod5 = comp-intel/2024.2.0
       set mod6 = mpi/mpich-ifort
 
-      set mods = ( $mod1 $mod2 $mod3 $mod4 $mod5 $mod6 )
+      set mod7 = other/ISSM/2026-02-10/ifort_2021.13.0-craympich_8.1.33
+
+      set mods = ( $mod1 $mod2 $mod3 $mod4 $mod5 $mod6 $mod7 )
       set modinit = /opt/cray/pe/modules/3.2.11.7/init/csh
 
       set switchmods = ( intel/2023.2.1:intel/2024.2.0 )