fix provenance command-line; fix metrics for model_only case

Author: chengzhuzhang

e3sm_diags/driver/lat_lon_native_driver.py

@@ -166,6 +166,20 @@ def _run_diags_2d_model_only(
         parameter._set_param_output_attrs(var_key, season, region, ref_name, ilev=None)
         logger.info(f"Processing {var_key} for region {region}")
 
+        # Apply regional subsetting before metrics calculation
+        uxds_test_subset = _apply_regional_subsetting(uxds_test, var_key, region)
+
+        # Create a minimal metrics_dict for model-only mode
+        # Only need test metrics, no reference or diff metrics
+        parameter.metrics_dict = _create_metrics_dict(
+            var_key,
+            uxds_test_subset,
+            uxds_ref=None,
+            uxds_test_remapped=uxds_test_subset,  # For model-only, test_regrid = test
+            uxds_ref_remapped=None,
+            uxds_diff=None,
+        )
+
         # Create plot with model-only mode
         plot_func(
             parameter,

e3sm_diags/parser/lat_lon_native_parser.py

@@ -48,3 +48,11 @@ def add_arguments(self):
             help="Width of grid edges when displayed",
             required=False,
         )
+
+        self.parser.add_argument(
+            "--time_slices",
+            dest="time_slices",
+            nargs="+",
+            help="Time slices for snapshot-based analysis (e.g., '0', '0:10:2', '5:15'). Mutually exclusive with seasons.",
+            required=False,
+        )

e3sm_diags/viewer/default_viewer.py

@@ -334,14 +334,33 @@ def create_metadata(parameter):
     if "parameters" in supported_cmd_args:
         supported_cmd_args.remove("parameters")
 
+    # Exclude parameters not used by this diagnostic set
+    exclude_params = {"granulate", "selectors"}
+    if set_name == "lat_lon_native":
+        exclude_params.update({"regrid_tool", "regrid_method"})
+
+    # Get default parameter values to skip parameters equal to defaults
+    default_param = parameter.__class__()
+
     for param_name in parameter.__dict__:
         param = parameter.__dict__[param_name]
+
+        # Skip excluded parameters
+        if param_name in exclude_params:
+            continue
+
         # We don't want to include blank values.
         if (isinstance(param, numpy.ndarray) and not param.all()) or (
             not isinstance(param, numpy.ndarray) and not param
         ):
             continue
 
+        # Skip if parameter value equals default value
+        if hasattr(default_param, param_name):
+            default_value = getattr(default_param, param_name)
+            if param == default_value:
+                continue
+
         if param_name in supported_cmd_args:
             if (
                 isinstance(param, list)