REF recipe CRE with CMIP7 data (#4461)

Co-authored-by: Bouwe Andela <b.andela@esciencecenter.nl>

Author: hb326

esmvaltool/recipes/ref/recipe_ref_cre_cmip7.yml

@@ -0,0 +1,105 @@
+# ESMValTool
+---
+documentation:
+  title: Model evaluation with focus on the cloud radiative effect.
+  description: >
+    Plot climatologies and zonal mean profiles of cloud radiative effects (sw + lw) for the REF.
+  authors:
+    - bock_lisa
+    - lauer_axel
+  maintainer:
+    - bock_lisa
+
+
+# Note: the following models are just examples
+datasets:
+  - project: CMIP7
+    activity: CMIP
+    branding_suffix: tavg-u-hxy-u
+    dataset: DUMMY-MODEL
+    ensemble: r1i1p1f1
+    exp: historical
+    frequency: mon
+    grid: g999
+    institute: MPI-M
+    mip: atmos
+    region: glb
+
+timerange_for_models: &time_period
+  timerange: '2002/2021'
+
+
+preprocessors:
+
+  full_climatology:
+    climate_statistics:
+      period: full
+    regrid:
+      target_grid: 1x1
+      scheme: area_weighted
+
+  zonal_mean:
+    climate_statistics:
+      period: full
+    regrid:
+      scheme: area_weighted
+      target_grid: 1x1
+    zonal_statistics:
+      operator: mean
+
+
+diagnostics:
+
+  plot_maps:
+    description: Plot lwcre climatology maps including reference datasets.
+    variables:
+      lwcre:
+        <<: *time_period
+        mip: Amon
+        preprocessor: full_climatology
+        derive: true
+      swcre:
+        <<: *time_period
+        mip: Amon
+        preprocessor: full_climatology
+        derive: true
+    additional_datasets:
+      - {dataset: CERES-EBAF-4-2-1, project: obs4MIPs, tier: 1,
+         start_year: 2002, end_year: 2021, reference_for_monitor_diags: true}
+    scripts:
+      plot: &plot_multi_dataset_default
+        script: monitor/multi_datasets.py
+        plot_folder: '{plot_dir}'
+        plot_filename: '{plot_type}_{real_name}_{dataset}_{mip}'
+        plots:
+          map:
+            common_cbar: true
+            x_pos_stats_avg: -0.1
+            fontsize: 10
+
+  plot_profiles:
+    description: Plot lwcre zonal mean including reference datasets.
+    variables:
+      lwcre:
+        <<: *time_period
+        mip: Amon
+        preprocessor: zonal_mean
+        derive: true
+      swcre:
+        <<: *time_period
+        mip: Amon
+        preprocessor: zonal_mean
+        derive: true
+    additional_datasets:
+      - {dataset: CERES-EBAF-4-2-1, project: obs4MIPs, tier: 1,
+         start_year: 2002, end_year: 2021, reference_for_monitor_diags: true}
+    scripts:
+      plot:
+        <<: *plot_multi_dataset_default
+        plots:
+          variable_vs_lat:
+            legend_kwargs:
+                loc: upper right
+            plot_kwargs:
+              CERES-EBAF-4-2-1:
+                color: black