add the airports workflow

Snakefile

@@ -86,6 +86,14 @@ rule prepare_ports:
         "scripts/prepare_ports.py"
 
 
+rule prepare_airports:
+    output:
+        ports="data/airports.csv",
+        # TODO move from data to resources
+    script:
+        "scripts/prepare_airports.py"
+
+
 rule prepare_sector_network:
     input:
         network=RDIR

config.default.yaml

@@ -271,6 +271,10 @@ sector:
   cc_fraction: 0.9
   cc: true
   space_heat_share: 0.6 # the share of space heating from all heating. Remainder goes to water heating.
+  airport_sizing_factor: 3
+
+
+
   conventional_generation: # generator : carrier
     OCGT: gas
     #Gen_Test: oil # Just for testing purposes