Merge pull request #2853 from ameraner/feature_add_li_composites

Add first version of LI composites and enhancements for point and accumulated products

satpy/etc/areas.yaml

@@ -443,6 +443,26 @@ mtg_fci_fdss_2km:
     upper_right_xy: [5567999.994203017,  5567999.994203017]
     units: m
 
+mtg_fci_fdss_4km:
+  description:
+    MTG FCI Full Disk Scanning Service area definition
+    with 4 km SSP resolution
+  projection:
+    proj: geos
+    lon_0: 0
+    h: 35786400
+    x_0: 0
+    y_0: 0
+    ellps: WGS84
+    no_defs: null
+  shape:
+    height: 2784
+    width: 2784
+  area_extent:
+    lower_left_xy: [-5567999.994203018, -5567999.994203018]
+    upper_right_xy: [5567999.994203017,  5567999.994203017]
+    units: m
+
 # Full disk - segmented products
 mtg_fci_fdss_6km:
   description:

satpy/etc/composites/fci.yaml

@@ -190,6 +190,43 @@ composites:
       - name: vis_04
     standard_name: true_color_reproduction_color_stretch
 
+### True Color with LI lightning
+
+  true_color_with_night_ir105_acc_flash:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_alpha
+      - true_color_with_night_ir105
+
+  true_color_with_night_ir105_acc_flash_area:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_area_alpha
+      - true_color_with_night_ir105
+
+  true_color_with_night_ir105_acc_flash_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_radiance_alpha
+      - true_color_with_night_ir105
+
+  true_color_with_night_ir105_flash_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - flash_radiance_alpha
+      - true_color_with_night_ir105
+
+  true_color_with_night_ir105_group_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - group_radiance_alpha
+      - true_color_with_night_ir105
+
 ### GeoColor
   geo_color:
    compositor: !!python/name:satpy.composites.DayNightCompositor

satpy/etc/composites/li.yaml

@@ -1,9 +1,75 @@
 ---
 sensor_name: visir/li
-
+# these are tentative recipes that will need to be further tuned as we gain experience with LI data
 composites:
+  acc_flash:
+    description: Composite to colorise the AF product using the flash accumulation
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: acc_flash
+    prerequisites:
+    - flash_accumulation
+  acc_flash_alpha:
+    description: Composite to colorise the AF product using the flash accumulation with transparency
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: acc_flash_alpha
+    prerequisites:
+    - flash_accumulation
+
+  acc_flash_area:
+    description: Composite to colorise the AFA product using the flash area
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: acc_flash_area
+    prerequisites:
+    - accumulated_flash_area
+  acc_flash_area_alpha:
+    description: Composite to colorise the AFA product using the flash area with transparency
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: acc_flash_area_alpha
+    prerequisites:
+    - accumulated_flash_area
+
+  acc_flash_radiance:
+    description: Composite to colorise the AFR product using the flash radiance
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: lightning_radiance
+    prerequisites:
+    - flash_radiance
+  acc_flash_radiance_alpha:
+    description: Composite to colorise the AFR product using the flash radiance with transparency
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: lightning_radiance_alpha
+    prerequisites:
+    - flash_radiance
+
+  flash_radiance:
+    description: Composite to colorise the LFL product using the flash radiance
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: lightning_radiance
+    prerequisites:
+    - radiance
+  flash_radiance_alpha:
+    description: Composite to colorise the LFL product using the flash radiance with transparency
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: lightning_radiance_alpha
+    prerequisites:
+    - radiance
+
+  group_radiance:
+    description: Composite to colorise the LGR product using the flash radiance
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: lightning_radiance
+    prerequisites:
+    - radiance
+  group_radiance_alpha:
+    description: Composite to colorise the LGR product using the flash radiance with transparency
+    compositor: !!python/name:satpy.composites.SingleBandCompositor
+    standard_name: lightning_radiance_alpha
+    prerequisites:
+    - radiance
+
+  # DEPRECATED, USE acc_flash_area INSTEAD
   flash_area:
     compositor: !!python/name:satpy.composites.SingleBandCompositor
-    standard_name: flash_area
+    standard_name: acc_flash_area
     prerequisites:
     - accumulated_flash_area

satpy/etc/composites/seviri.yaml

@@ -598,3 +598,74 @@ composites:
       - method: equal
         value: High_semitransparent_above_snow_ice
         transparency: 60
+
+### Composites with LI lightning
+  natural_color_with_night_ir_acc_flash:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_alpha
+      - natural_color_with_night_ir
+
+  natural_color_with_night_ir_acc_flash_area:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_area_alpha
+      - natural_color_with_night_ir
+
+  natural_color_with_night_ir_acc_flash_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_radiance_alpha
+      - natural_color_with_night_ir
+
+  natural_color_with_night_ir_flash_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - flash_radiance_alpha
+      - natural_color_with_night_ir
+
+  natural_color_with_night_ir_group_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - group_radiance_alpha
+      - natural_color_with_night_ir
+
+  hrv_acc_flash:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_alpha
+      - HRV
+
+  hrv_acc_flash_area:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_area_alpha
+      - HRV
+
+  hrv_acc_flash_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - acc_flash_radiance_alpha
+      - HRV
+
+  hrv_flash_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - flash_radiance_alpha
+      - HRV
+
+  hrv_group_radiance:
+    compositor: !!python/name:satpy.composites.BackgroundCompositor
+    standard_name: imager_with_lightning
+    prerequisites:
+      - group_radiance_alpha
+      - HRV

satpy/etc/enhancements/generic.yaml

@@ -1269,3 +1269,7 @@ enhancements:
          stretch: crude
          min_stretch: [0,0,0]
          max_stretch: [1,1,1]
+
+  imager_with_lightning:
+    standard_name: imager_with_lightning
+    operations: []

satpy/etc/enhancements/li.yaml

@@ -1,10 +1,60 @@
 enhancements:
+# note that the colormap parameters are tuned for 5 minutes of files accumulation
+# these are tentative recipes that will need to be further tuned as we gain experience with LI data
 
-  flash_area:
-    standard_name: flash_area
+  acc_flash:
+    standard_name: acc_flash
+    operations:
+    - name: colorize
+      method: !!python/name:satpy.enhancements.colorize
+      kwargs:
+        palettes:
+        - {colors: ylorrd, min_value: 0, max_value: 5}
+
+  acc_flash_alpha:
+    standard_name: acc_flash_alpha
+    operations:
+    - name: colorize
+      method: !!python/name:satpy.enhancements.colorize
+      kwargs:
+        palettes:
+        - {colors: ylorrd, min_value: 0, max_value: 5,
+           min_alpha: 120, max_alpha: 180}
+
+  acc_flash_area:
+    standard_name: acc_flash_area
     operations:
     - name: colorize
       method: !!python/name:satpy.enhancements.colorize
       kwargs:
         palettes:
         - {colors: ylorrd, min_value: 0, max_value: 20}
+
+  acc_flash_area_alpha:
+    standard_name: acc_flash_area_alpha
+    operations:
+    - name: colorize
+      method: !!python/name:satpy.enhancements.colorize
+      kwargs:
+        palettes:
+        - {colors: ylorrd, min_value: 0, max_value: 20,
+           min_alpha: 120, max_alpha: 180}
+
+  lightning_radiance:
+    standard_name: lightning_radiance
+    operations:
+    - name: colorize
+      method: !!python/name:satpy.enhancements.colorize
+      kwargs:
+        palettes:
+        - {colors: ylorrd, min_value: 0, max_value: 1000}
+
+  lightning_radiance_alpha:
+    standard_name: lightning_radiance_alpha
+    operations:
+    - name: colorize
+      method: !!python/name:satpy.enhancements.colorize
+      kwargs:
+        palettes:
+        - {colors: ylorrd, min_value: 0, max_value: 1000,
+           min_alpha: 120, max_alpha: 180}