diff --git a/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics.py b/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics.py
index fd65f1b892..0f6d9b1377 100755
--- a/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics.py
+++ b/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics.py
@@ -290,8 +290,8 @@ def obs_extract_overlap(obs_1, obs_2):
     start_2 = obs_2.coord("time").cell(0).point
     end_2 = obs_2.coord("time").cell(-1).point
 
-    start_overlap = max(start_1, start_2)
-    end_overlap = min(end_1, end_2)
+    start_overlap = max(start_1, start_2).replace(day=1, hour=0)
+    end_overlap = min(end_1, end_2).replace(day=31, hour=12)
     # convert to yymmdd? use extract time, num2date
     logger.info(
         "%s, %s obs time overlap: %s to %s",
@@ -416,6 +416,11 @@ def main(cfg):
                 variable_group=var_prep,
                 project="OBS6",
             )
+            obs += select_metadata(
+                input_data,
+                variable_group=var_prep,
+                project="obs4MIPs",
+            )
             models += select_metadata(
                 input_data,
                 variable_group=var_prep,
diff --git a/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics_lvl4.py b/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics_lvl4.py
index 2d6b1509d9..b9931a84aa 100755
--- a/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics_lvl4.py
+++ b/esmvaltool/diag_scripts/enso_metrics/feedback/feedback_metrics_lvl4.py
@@ -320,6 +320,11 @@ def main(cfg):
                 variable_group=var_prep,
                 project="OBS6",
             )
+            obs += select_metadata(
+                input_data,
+                variable_group=var_prep,
+                project="obs4MIPs",
+            )
             models += select_metadata(
                 input_data,
                 variable_group=var_prep,
diff --git a/esmvaltool/recipes/recipe_enso_feedback.yml b/esmvaltool/recipes/recipe_enso_feedback.yml
index 1c4af9e80b..7efc21ac11 100644
--- a/esmvaltool/recipes/recipe_enso_feedback.yml
+++ b/esmvaltool/recipes/recipe_enso_feedback.yml
@@ -135,19 +135,21 @@ diagnostics:
         mip: Omon
         preprocessor: ssh_east
         additional_datasets:
-          - {dataset: CMEMS, project: OBS6, type: sat, tier: 2, version: SEALEVEL-GLO-PHY-L4, start_year: 1993, end_year: 2018}
+          # can use either of the following obs for zos
+          # - {dataset: CMEMS, project: OBS6, type: sat, tier: 2, version: SEALEVEL-GLO-PHY-L4, start_year: 1993, end_year: 2018}
+          - {dataset: AVISO-1-0, project: obs4MIPs, institute: CNES, grid: gn, version: '*', start_year: 1993, end_year: 2010}
       ssh_eqp:
         short_name: zos
         mip: Omon
         preprocessor: ssh_eqp
         additional_datasets:
-          - {dataset: CMEMS, project: OBS6, type: sat, tier: 2, version: SEALEVEL-GLO-PHY-L4, start_year: 1993, end_year: 2018}
+          - {dataset: AVISO-1-0, project: obs4MIPs, institute: CNES, grid: gn, version: '*', start_year: 1993, end_year: 2010}
       ssh_eqp_area:
         short_name: zos
         mip: Omon
         preprocessor: ssh_eqp_area
         additional_datasets:
-          - {dataset: CMEMS, project: OBS6, type: sat, tier: 2, version: SEALEVEL-GLO-PHY-L4, start_year: 1993, end_year: 2018}
+          - {dataset: AVISO-1-0, project: obs4MIPs, institute: CNES, grid: gn, version: '*', start_year: 1993, end_year: 2010}
 
     scripts:
       plot_script: