diff --git a/Externals_CAM.cfg b/Externals_CAM.cfg
index b591e97c2c..d8baa8d901 100644
--- a/Externals_CAM.cfg
+++ b/Externals_CAM.cfg
@@ -21,9 +21,10 @@ required = True
 
 [cosp2]
 local_path = src/physics/cosp2/src
-protocol = svn
-repo_url = https://github.com/CFMIP/COSPv2.0/tags/
-tag = v2.1.4cesm/src
+protocol = git
+repo_url = https://github.com/CFMIP/COSPv2.0
+sparse = ../.cosp_sparse_checkout
+tag = v2.1.4cesm
 required = True
 
 [externals_description]
diff --git a/bld/configure b/bld/configure
index e00e6ae57a..65d45b4788 100755
--- a/bld/configure
+++ b/bld/configure
@@ -121,9 +121,9 @@ OPTIONS
                           test_tracers, test_tracers2].
                         Default: none.
      -chem <name>       Build CAM with specified prognostic chemistry package
-                        [ trop_mam3 | trop_mam4 | trop_mam7 | trop_mozart | trop_strat_mam4_vbs | trop_strat_mam4_vbsext | 
-                          waccm_ma | waccm_mad | waccm_mad_mam4 | waccm_ma_mam4 | 
-                          waccm_ma_sulfur | waccm_sc | waccm_sc_mam4 | waccm_tsmlt_mam4 | 
+                        [ trop_mam3 | trop_mam4 | trop_mam7 | trop_mozart | trop_strat_mam4_vbs | trop_strat_mam4_vbsext |
+                          waccm_ma | waccm_mad | waccm_mad_mam4 | waccm_ma_mam4 |
+                          waccm_ma_sulfur | waccm_sc | waccm_sc_mam4 | waccm_tsmlt_mam4 |
                           terminator | none ].
                         Default: trop_mam4 for cam6 and trop_mam3 for cam5.
      -[no]clubb_sgs     Switch on [off] CLUBB_SGS.  Default: on for cam6, otherwise off.
@@ -1929,7 +1929,7 @@ if ($cfg_ref->get('analytic_ic')) {
 
 #WACCM-X extended thermosphere/ionosphere model
 if ($waccmx) {
-    $cfg_cppdefs .= ' -DWACCMX_PHYS'; 
+    $cfg_cppdefs .= ' -DWACCMX_PHYS';
     if (($dyn_pkg ne 'fv') and ($ionos ne 'none'))  {
         die "ERROR:  Ionosphere is only available for FV dycore \n";
     }
@@ -3075,13 +3075,13 @@ sub write_cosp_makefile
 
 CAM_BLD      := $cam_bld
 COSP_PATH    := $cam_dir/src/physics/cosp2
-ISCCP_PATH   := $cam_dir/src/physics/cosp2/src/simulator/icarus
-RS_PATH      := $cam_dir/src/physics/cosp2/src/simulator/quickbeam
-RT_PATH      := $cam_dir/src/physics/cosp2/src/simulator/rttov
-CS_PATH      := $cam_dir/src/physics/cosp2/src/simulator/actsim
-MISR_PATH    := $cam_dir/src/physics/cosp2/src/simulator/MISR_simulator
-MODIS_PATH   := $cam_dir/src/physics/cosp2/src/simulator/MODIS_simulator
-PARASOL_PATH := $cam_dir/src/physics/cosp2/src/simulator/parasol
+ISCCP_PATH   := $cam_dir/src/physics/cosp2/src/src/simulator/icarus
+RS_PATH      := $cam_dir/src/physics/cosp2/src/src/simulator/quickbeam
+RT_PATH      := $cam_dir/src/physics/cosp2/src/src/simulator/rttov
+CS_PATH      := $cam_dir/src/physics/cosp2/src/src/simulator/actsim
+MISR_PATH    := $cam_dir/src/physics/cosp2/src/src/simulator/MISR_simulator
+MODIS_PATH   := $cam_dir/src/physics/cosp2/src/src/simulator/MODIS_simulator
+PARASOL_PATH := $cam_dir/src/physics/cosp2/src/src/simulator/parasol
 
 EOF
 
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 228bab6585..982433ed70 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,8 +1,73 @@
 ===============================================================
 
+Tag name: cam_cesm2_1_rel_59
+Originator(s): nusbaume
+Date: 27 Nov 2023
+One-line Summary: removes svn sparse checkout
+Github PR URL: https://github.com/ESCOMP/CAM/pull/916
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+
+Use git sparse checkout for all repos, combine clubb and silhs into clubb.
+git sparse checkout has been available in manage_externals since version 1.2.1.
+
+Fixes #912 -> cosp2 svn access to github support is ending soon
+
+Describe any changes made to build system:
+
+Build path were modified in the "configure" Perl script, as well
+as in the COSP Makefile.in file, in order to account for the
+new source code paths.
+
+Describe any changes made to the namelist: N/A
+
+List any changes to the defaults for the boundary datasets: N/A
+
+Describe any substantial timing or memory changes: N/A
+
+Code reviewed by: cacraigucar
+
+List all files eliminated: N/A
+
+List all files added and what they do:
+
+A       src/physics/cosp2/.cosp_sparse_checkout
+ - Provides information on how to do the git sparse checkout of COSP
+
+List all existing files that have been modified, and describe the changes:
+
+M       Externals_CAM.cfg
+ - Change the Github-SVN bridge method to git sparse checkout
+
+M       bld/configure
+ - Update source code paths for COSP
+
+M       src/physics/cosp2/Makefile.in
+ - Update source code paths for relevant COSP files.
+
+M       test/system/test_driver.sh
+ - Add qsub flag needed for old test system to run on Cheyenne.
+
+If there were any failures reported from running test_driver.sh on any test
+platform, and checkin with these failures has been OK'd by the gatekeeper,
+then copy the lines from the td.*.status files for the failed tests to the
+appropriate machine below.  All failed tests must be justified.
+
+cheyenne/intel: bit-for-bit
+
+cheyenne/intel/aux_cam: bit-for-bit
+
+izumi/nag: bit-for-bit
+
+izumi/pgi: SKIPPED - NO LONGER SUPPORTED
+
+Summarize any changes to answers: ALL SUPPORTED TESTS PASS
+
+===============================================================
+
 Tag name: cam_cesm2_1_rel_r58
 Originator(s): fischer
-Date: 30 May 2023 
+Date: 30 May 2023
 One-line Summary: Add use case for BSSP585smbb
 Github PR URL: https://github.com/ESCOMP/CAM/pull/822
 
diff --git a/src/physics/cosp2/.cosp_sparse_checkout b/src/physics/cosp2/.cosp_sparse_checkout
new file mode 100644
index 0000000000..4f00cd9a73
--- /dev/null
+++ b/src/physics/cosp2/.cosp_sparse_checkout
@@ -0,0 +1 @@
+/src/
diff --git a/src/physics/cosp2/Makefile.in b/src/physics/cosp2/Makefile.in
index 69a37713fa..881a1a5679 100644
--- a/src/physics/cosp2/Makefile.in
+++ b/src/physics/cosp2/Makefile.in
@@ -65,10 +65,10 @@ cosp_grLidar532_interface.o: cosp_kinds.o
 cosp_atlid_interface.o     : cosp_kinds.o
 cosp_cloudsat_interface.o  : cosp_kinds.o cosp_config.o quickbeam.o
 cosp_isccp_interface.o     : cosp_kinds.o icarus.o
-cosp_misr_interface.o      : cosp_kinds.o 
+cosp_misr_interface.o      : cosp_kinds.o
 cosp_modis_interface.o     : cosp_kinds.o cosp_config.o modis_simulator.o
 cosp_rttov_interfaceSTUB.o : cosp_kinds.o cosp_config.o cosp_rttovSTUB.o
-cosp_parasol_interface.o   : cosp_kinds.o 
+cosp_parasol_interface.o   : cosp_kinds.o
 cosp_rttovSTUB.o           : cosp_kinds.o cosp_config.o cosp_constants.o
 MISR_simulator.o           : cosp_kinds.o cosp_config.o cosp_stats.o
 modis_simulator.o          : cosp_kinds.o cosp_config.o cosp_stats.o
@@ -82,7 +82,7 @@ scops.o               : cosp_kinds.o mo_rng.o cosp_errorHandling.o
 prec_scops.o	      : cosp_kinds.o cosp_config.o
 cosp_optics.o         : cosp_kinds.o cosp_constants.o modis_simulator.o
 quickbeam_optics.o    : cosp_kinds.o cosp_config.o cosp_constants.o quickbeam.o      \
-			            cosp_errorHandling.o array_lib.o math_lib.o optics_lib.o 
+			            cosp_errorHandling.o array_lib.o math_lib.o optics_lib.o
 optics_lib.o	      : cosp_kinds.o cosp_errorHandling.o
 array_lib.o   	      : cosp_kinds.o cosp_errorHandling.o
 math_lib.o            : cosp_kinds.o array_lib.o mrgrnk.o
@@ -107,37 +107,37 @@ quickbeam.o: $(RS_PATH)/quickbeam.F90
 MISR_simulator.o : $(MISR_PATH)/MISR_simulator.F90
 	$(F90) $(F90FLAGS) -c $<
 
-modis_simulator.o : $(MODIS_PATH)/modis_simulator.F90 
+modis_simulator.o : $(MODIS_PATH)/modis_simulator.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_rttov_interfaceSTUB.o : $(COSP_PATH)/src/simulator/cosp_rttov_interfaceSTUB.F90
+cosp_rttov_interfaceSTUB.o : $(COSP_PATH)/src/src/simulator/cosp_rttov_interfaceSTUB.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_misr_interface.o : $(COSP_PATH)/src/simulator/cosp_misr_interface.F90
+cosp_misr_interface.o : $(COSP_PATH)/src/src/simulator/cosp_misr_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_modis_interface.o : $(COSP_PATH)/src/simulator/cosp_modis_interface.F90
+cosp_modis_interface.o : $(COSP_PATH)/src/src/simulator/cosp_modis_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_isccp_interface.o : $(COSP_PATH)/src/simulator/cosp_isccp_interface.F90
+cosp_isccp_interface.o : $(COSP_PATH)/src/src/simulator/cosp_isccp_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_calipso_interface.o : $(COSP_PATH)/src/simulator/cosp_calipso_interface.F90
+cosp_calipso_interface.o : $(COSP_PATH)/src/src/simulator/cosp_calipso_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_grLidar532_interface.o : $(COSP_PATH)/src/simulator/cosp_grLidar532_interface.F90
+cosp_grLidar532_interface.o : $(COSP_PATH)/src/src/simulator/cosp_grLidar532_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_atlid_interface.o : $(COSP_PATH)/src/simulator/cosp_atlid_interface.F90
+cosp_atlid_interface.o : $(COSP_PATH)/src/src/simulator/cosp_atlid_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_cloudsat_interface.o : $(COSP_PATH)/src/simulator/cosp_cloudsat_interface.F90
+cosp_cloudsat_interface.o : $(COSP_PATH)/src/src/simulator/cosp_cloudsat_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_parasol_interface.o : $(COSP_PATH)/src/simulator/cosp_parasol_interface.F90
+cosp_parasol_interface.o : $(COSP_PATH)/src/src/simulator/cosp_parasol_interface.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_rttovSTUB.o : $(RT_PATH)/cosp_rttovSTUB.F90 
+cosp_rttovSTUB.o : $(RT_PATH)/cosp_rttovSTUB.F90
 	$(F90) $(F90FLAGS) -c $<
 
 lidar_simulator.o : $(CS_PATH)/lidar_simulator.F90
@@ -146,19 +146,19 @@ lidar_simulator.o : $(CS_PATH)/lidar_simulator.F90
 parasol.o : $(PARASOL_PATH)/parasol.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_constants.o :  $(COSP_PATH)/src/cosp_constants.F90
+cosp_constants.o :  $(COSP_PATH)/src/src/cosp_constants.F90
 	$(F90) $(F90FLAGS) -c $<
 
 cosp_kinds.o : $(COSP_PATH)/cosp_kinds.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_config.o :  $(COSP_PATH)/src/cosp_config.F90
+cosp_config.o :  $(COSP_PATH)/src/src/cosp_config.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp.o :  $(COSP_PATH)/src/cosp.F90
+cosp.o :  $(COSP_PATH)/src/src/cosp.F90
 	$(F90) $(F90FLAGS) -c $<
 
-cosp_stats.o :  $(COSP_PATH)/src/cosp_stats.F90
+cosp_stats.o :  $(COSP_PATH)/src/src/cosp_stats.F90
 	$(F90) $(F90FLAGS) -c $<
 
 # COSPv1.4 interface
diff --git a/test/system/test_driver.sh b/test/system/test_driver.sh
index 3feef77558..e309e3cbef 100755
--- a/test/system/test_driver.sh
+++ b/test/system/test_driver.sh
@@ -937,7 +937,7 @@ if [ -n "${submit_script_cb}" ]; then
     case $hostname in
         # cheyenne
         chey* | r* )
-            batch_queue_submit='qsub '
+            batch_queue_submit='qsub -V'
 	    ;;
         *)
             echo "ERROR: machine $hostname not currently supported for batch builds"
@@ -1082,7 +1082,7 @@ if [ "${cesm_test_suite}" != "none" -a -n "${cesm_test_mach}" ]; then
       echo "cd ${script_dir}" >> ${submit_script_cime}
       echo './create_test' ${testargs} >> ${submit_script_cime}
       chmod u+x ${submit_script_cime}
-      qsub ${submit_script_cime}
+      qsub -V ${submit_script_cime}
     fi
 
     if [ "${hostname:0:6}" == "hobart" ]; then
@@ -1116,7 +1116,7 @@ if $run_cam_regression; then
   case $hostname in
     ##cheyenne
     ch* | r* )
-	qsub ${submit_script_cb}
+	qsub -V ${submit_script_cb}
 	;;
 
     ##hobart