diff --git a/default_cbl.json b/default_cbl.json
index a21b8ed87eb882a3b87477c8b2f914f29104038d..3b6bda7b9bd120731190d91bb47baa85c4e1a835 100644
--- a/default_cbl.json
+++ b/default_cbl.json
@@ -22,7 +22,7 @@
  "rnseed": 181612,
  "perturb_ensemble_state": true,
  "perturbations_type": "smooth",
- "perturbations_theta_amplitude": 0.1,
+ "perturbations_theta_amplitude": 0.5,
  "perturbations_uv_amplitude": 0.1,
  "perturbations_smooth_number": 11,
  "perturbations_symmetric": true,
diff --git a/default_da.json b/default_da.json
index 96cf8998503562c839ccfe4fb1608c1dfe01cd72..55da969a5358c18620d6212c9460ca9f0280f9ca 100644
--- a/default_da.json
+++ b/default_da.json
@@ -11,7 +11,7 @@
     "obs_coordinates_max": 433,
     "obs_kinds": "theta",
     "obs_error_sdev_generate": 0.2,
-    "obs_error_sdev_assimilate": 0.1,
+    "obs_error_sdev_assimilate": 0.2,
     "localization_cutoff": 400,
     "nens": 10,
     "FILTER": "EAKF",