Merge pull request #640 from djhoese/feat-normalized-burn-ratio

Add normalized burn ratio composite (nbr) for VIIRS
ssec · Jan 10, 2024 · 4de2d1b · 4de2d1b
2 parents 9d531a9 + baa1a1b
commit 4de2d1b
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diff --git a/polar2grid/etc/composites/viirs.yaml b/polar2grid/etc/composites/viirs.yaml
@@ -318,3 +318,18 @@ composites:
     standard_name: equalized_radiance
     units: "1"
     saturation_correction: true
+
+  nbr:
+    compositor: !!python/name:satpy.composites.viirs.GenericCompositor
+    prerequisites:
+      - compositor: !!python/name:satpy.composites.RatioCompositor
+        prerequisites:
+          - compositor: !!python/name:satpy.composites.DifferenceCompositor
+            prerequisites:
+              - name: M11
+              - name: I02
+          - compositor: !!python/name:satpy.composites.SumCompositor
+            prerequisites:
+              - name: M11
+              - name: I02
+    standard_name: normalized_burn_ratio
diff --git a/polar2grid/etc/enhancements/viirs.yaml b/polar2grid/etc/enhancements/viirs.yaml
@@ -166,3 +166,11 @@ enhancements:
             - filename: colormaps/abi_l2_modified_cloud_top.cmap
               min_value: 300
               max_value: 200
+
+  nbr:
+    sensor: viirs
+    standard_name: normalized_burn_ratio
+    operations:
+      - name: linear_stretch
+        method: !!python/name:satpy.enhancements.stretch
+        kwargs: { stretch: 'crude', min_stretch: -1.0, max_stretch: 1.0 }