diff --git a/component_grids_nuopc.xml b/component_grids_nuopc.xml
index fd7b786f..0eb63959 100644
--- a/component_grids_nuopc.xml
+++ b/component_grids_nuopc.xml
@@ -571,7 +571,12 @@
   <domain name="1x1_smallvilleIA">
     <lat>40.6878</lat>
     <lon>267.0228</lon>
-    <desc>1x1 Smallville Iowa Crop Test Case -- only valid for DATM/CLM compset</desc>
+    <desc>1x1 Smallville Iowa Crop Test Case w/ synthetic land data -- only valid for DATM/CLM compset</desc>
+  </domain>
+  <domain name="1x1_cidadinhoBR">
+    <lat>-12.9952</lat>
+    <lon>305.3233</lon>
+    <desc>1x1 Cidadinho ("Smallville") Brazil Crop Test Case w/ synthetic land data -- only valid for DATM/CLM compset</desc>
   </domain>
   <domain name="1x1_camdenNJ">
     <lat>40.0</lat>
diff --git a/modelgrid_aliases_nuopc.xml b/modelgrid_aliases_nuopc.xml
index 3e6ee1e1..751ca50d 100644
--- a/modelgrid_aliases_nuopc.xml
+++ b/modelgrid_aliases_nuopc.xml
@@ -69,6 +69,12 @@
     <grid name="rof">null</grid>
   </model_grid>
 
+  <model_grid alias="1x1_cidadinhoBR" compset="DATM.+CLM|DATM.+SLND">
+    <grid name="atm">1x1_cidadinhoBR</grid>
+    <grid name="lnd">1x1_cidadinhoBR</grid>
+    <grid name="rof">null</grid>
+  </model_grid>
+
   <model_grid alias="1x1_camdenNJ" compset="DATM.+CLM|DATM.+SLND">
     <grid name="atm">1x1_camdenNJ</grid>
     <grid name="lnd">1x1_camdenNJ</grid>