Update GSI tag to gfsda.v16.3.20

New tag includes updated global_convinfo.txt for turning
on PlanetIQ assimilation.

Refs NOAA-EMC#2558

Externals.cfg

@@ -8,7 +8,7 @@ protocol = git
 required = True
 
 [GSI]
-tag = gfsda.v16.3.19
+tag = gfsda.v16.3.20
 local_path = sorc/gsi.fd
 repo_url = https://github.com/NOAA-EMC/GSI.git
 protocol = git

docs/Release_Notes.md

@@ -26,7 +26,7 @@ The checkout script extracts the following GFS components:
 | --------- | ----------- | ----------------- |
 | MODEL     | GFS.v16.3.1   | Jun.Wang@noaa.gov |
 | GLDAS     | gldas_gfsv16_release.v.2.1.0 | Helin.Wei@noaa.gov |
-| GSI       | gfsda.v16.3.19 | Andrew.Collard@noaa.gov |
+| GSI       | gfsda.v16.3.20 | Andrew.Collard@noaa.gov |
 | UFS_UTILS | ops-gfsv16.3.0 | George.Gayno@noaa.gov |
 | POST      | upp_v8.3.0 | Wen.Meng@noaa.gov |
 | WAFS      | gfs_wafs.v6.3.3 | Yali.Mao@noaa.gov |
@@ -124,3 +124,4 @@ DOCUMENTATION
 PREPARED BY
 -----------
 Kate.Friedman@noaa.gov
+Andrew.Collard@noaa.gov

sorc/checkout.sh

@@ -35,7 +35,7 @@ fi
 echo gsi checkout ...
 if [[ ! -d gsi.fd ]] ; then
     rm -f ${topdir}/checkout-gsi.log
-    git clone --recursive --branch gfsda.v16.3.19 https://github.com/NOAA-EMC/GSI.git gsi.fd >> ${topdir}/checkout-gsi.log 2>&1
+    git clone --recursive --branch gfsda.v16.3.20 https://github.com/NOAA-EMC/GSI.git gsi.fd >> ${topdir}/checkout-gsi.log 2>&1
     cd gsi.fd
     git submodule update --init
     cd ${topdir}