Merge pull request #1251 from sjoro/abi_rgbs

Add ABI Fire Temperature, Day Convection, and Cloud Type composites.

satpy/etc/composites/abi.yaml

@@ -311,7 +311,58 @@ composites:
     prerequisites:
       - night_ir_alpha
       - _night_background_hires
-  #
+
+  cira_fire_temperature:
+    compositor: !!python/name:satpy.composites.GenericCompositor
+    standard_name: cira_fire_temperature
+    description: >
+      The fire temperature RGB highlights intense fires and differentiate these
+      from low temperature fires. Small low temperature fires will only show up at 3.9 μm and
+      appear red. With the increasing intensity and temperature the fires will also be detected
+      by the 2.2 μm and 1.6 μm bands resulting very intense fires in white.
+    references:
+      Research Article: http://rammb.cira.colostate.edu/training/visit/quick_guides/Fire_Temperature_RGB.pdf
+    prerequisites:
+      - name: C07
+      - name: C06
+      - name: C05
+
+  cira_day_convection:
+    compositor: !!python/name:satpy.composites.GenericCompositor
+    standard_name: cira_day_convection
+    description: >
+      The Day Convection RGB emphasizes convection with strong updrafts and small ice particles
+      indicative of severe storms. Bright yellow in the RGB indicates strong updrafts prior
+      to the mature storm stage.
+    references:
+      Research Article: http://rammb.cira.colostate.edu/training/visit/quick_guides/QuickGuide_GOESR_DayConvectionRGB_final.pdf
+    prerequisites:
+    - compositor: !!python/name:satpy.composites.DifferenceCompositor
+      prerequisites:
+      - name: C08
+      - name: C10
+    - compositor: !!python/name:satpy.composites.DifferenceCompositor
+      prerequisites:
+        - name: C07
+        - name: C13
+    - compositor: !!python/name:satpy.composites.DifferenceCompositor
+      prerequisites:
+        - name: C05
+        - name: C02
+
+  cimss_cloud_type:
+    compositor: !!python/name:satpy.composites.GenericCompositor
+    standard_name: cimss_cloud_type
+    description: >
+      The Cloud Type RGB discriminates very well between high clouds and low clouds and can be
+      used to estimate cloud type. Thin cirrus clouds appear red, opaque ice clouds are yellow,
+      low water clouds are cyan, and lofted water clouds are white.
+    references:
+      Research Article: https://www.wmo.int/pages/prog/sat/meetings/documents/RGB-WS-2017_Doc_02g_Kerkmann-new-rgbs.pdf
+    prerequisites:
+      - name: C04
+      - name: C02
+      - name: C05
   ash:
     description: >
       Ash RGB, for GOESR: NASA, NOAA

satpy/etc/enhancements/abi.yaml

@@ -11,6 +11,7 @@ enhancements:
         kwargs: {gamma: 2.0}
       - name: contrast
         method: !!python/name:satpy.enhancements.abi.cimss_true_color_contrast
+
   cmi_reflectance_default:
     standard_name: toa_lambertian_equivalent_albedo_multiplied_by_cosine_solar_zenith_angle
     operations:
@@ -20,6 +21,7 @@ enhancements:
       - name: gamma
         method: !!python/name:satpy.enhancements.gamma
         kwargs: {gamma: 1.5}
+
   airmass:
     standard_name: airmass
     operations:
@@ -29,6 +31,45 @@ enhancements:
           stretch: crude
           min_stretch: [-26.2, -43.2, 243.9]
           max_stretch: [0.6, 6.7, 208.5]
+
+  cira_fire_temperature:
+    standard_name: cira_fire_temperature
+    operations:
+      - name: stretch
+        method: !!python/name:satpy.enhancements.stretch
+        kwargs:
+          stretch: crude
+          min_stretch: [273.15, 0.0, 0.0]
+          max_stretch: [333.15, 100.0, 75.0]
+      - name: gamma
+        method: !!python/name:satpy.enhancements.gamma
+        kwargs:
+          gamma: [1.4, 1, 1]
+
+  cira_day_convection:
+    standard_name: cira_day_convection
+    operations:
+      - name: stretch
+        method: !!python/name:satpy.enhancements.stretch
+        kwargs:
+          stretch: crude
+          min_stretch: [-35.0, -5.0, -75.0]
+          max_stretch: [5.0, 60.0, 25.0]
+
+  cimss_cloud_type:
+    standard_name: cimss_cloud_type
+    operations:
+      - name: stretch
+        method: !!python/name:satpy.enhancements.stretch
+        kwargs:
+          stretch: crude
+          min_stretch: [0.0, 0.0, 0.0]
+          max_stretch: [10.0, 80.0, 80.0]
+      - name: gamma
+        method: !!python/name:satpy.enhancements.gamma
+        kwargs:
+          gamma: [1.5, 0.75, 1.0]
+
 #
   ash_abi:
     ## RGB Ash recipe source: http://rammb.cira.colostate.edu/training/visit/quick_guides/GOES_Ash_RGB.pdf