Fixed sounding decorder bug

Part of the SIGW merging code erroneously added pressure to the wind
direction array. This was subsequently written over by actual wind
direction data which may explain why no errors were found in testing.
The pressure level is not placed in the correct array.

gempakio/decode.py

@@ -1384,7 +1384,7 @@ def _merge_sounding(self, parts):
                     first_sig_p = abs(parts['PPBB']['PRES'][0])
                     if (first_man_p == self.prod_desc.missing_float
                        or np.isclose(first_man_p, first_sig_p)):
-                        merged['DRCT'][0] = abs(parts['PPBB']['PRES'][0])
+                        merged['PRES'][0] = abs(parts['PPBB']['PRES'][0])
                         merged['DRCT'][0] = parts['PPBB']['DRCT'][0]
                         merged['SPED'][0] = parts['PPBB']['SPED'][0]
 

setup.py

@@ -6,7 +6,7 @@
 from setuptools import find_packages, setup
 
 NAME = 'gempakio'
-VERSION = '0.5'
+VERSION = '0.6'
 DESCR = 'Read GEMPAK data with pure Python.'
 URL = 'https://github.com/nawendt/gempakio'
 REQUIRES = ['pyproj', 'xarray']