diff --git a/AirSeaFluxCode.py b/AirSeaFluxCode.py
index 835127c84989066af3776bcf3a679ab1ef53f0d8..377ad34fc96f3f6d6ff4ed42770c7921e64c3986 100644
--- a/AirSeaFluxCode.py
+++ b/AirSeaFluxCode.py
@@ -136,14 +136,15 @@ def AirSeaFluxCode(spd, T, SST, lat=None, hum=None, P=None, hin=18, hout=10,
                         format='%(asctime)s %(message)s',level=logging.INFO)
     logging.captureWarnings(True)
     #  check input values and set defaults where appropriate
-    lat, P, Rl, Rs, cskin, skin, wl, gust, tol, L = get_init(spd, T, SST, lat,
-                                                              P, Rl, Rs, cskin,
-                                                              skin, wl, gust, L,
-                                                              tol, meth, qmeth)
+    lat, hum, P, Rl, Rs, cskin, skin, wl, gust, tol, L = get_init(spd, T, SST,
+                                                                  lat, hum, P,
+                                                                  Rl, Rs,
+                                                                  cskin, skin,
+                                                                  wl, gust, L,
+                                                                  tol, meth,
+                                                                  qmeth)
     flag = np.ones(spd.shape, dtype="object")*"n"
-    flag = np.where(np.isnan(spd+T+SST+lat+hum[1]+P+Rs) & (flag == "n"),
-                    "m", np.where(np.isnan(spd+T+SST+lat+hum[1]+P+Rs) &
-                                  (flag != "n"), flag+[","]+["m"], flag))
+    flag = np.where(np.isnan(spd+T+SST+lat+hum[1]+P+Rs), "m", flag)
     ref_ht = 10        # reference height
     h_in = get_heights(hin, len(spd))  # heights of input measurements/fields
     h_out = get_heights(hout, 1)       # desired height of output variables
diff --git a/get_init.py b/get_init.py
index 47ddf53902c50ba7ffae513e565c9dde3a275ea4..8f2b49fc40de6ffc8c8ed75c418afc23a3ebcb16 100644
--- a/get_init.py
+++ b/get_init.py
@@ -1,7 +1,7 @@
 import numpy as np
 import sys
 
-def get_init(spd, T, SST, lat, P, Rl, Rs, cskin, skin, wl, gust, L, tol, meth,
+def get_init(spd, T, SST, lat, hum, P, Rl, Rs, cskin, skin, wl, gust, L, tol, meth,
              qmeth):
     """
     Checks initial input values and sets defaults if needed
@@ -17,6 +17,8 @@ def get_init(spd, T, SST, lat, P, Rl, Rs, cskin, skin, wl, gust, L, tol, meth,
         sea surface temperature in K
     lat : float
         latitude (deg), default 45deg
+    hum : float
+        relative humidity, if None is set to 80%
     P : float
         air pressure (hPa), default 1013hPa
     Rl : float
@@ -100,6 +102,11 @@ def get_init(spd, T, SST, lat, P, Rl, Rs, cskin, skin, wl, gust, L, tol, meth,
         lat = 45*np.ones(spd.shape)
     elif ((np.all(lat != None)) and (np.size(lat) == 1)):
         lat = np.ones(spd.shape)*np.copy(lat)
+    if (hum == None):
+        RH = np.ones(SST.shape)*80
+        hum = ['rh', RH]
+    else:
+        hum = hum
     if ((np.all(P == None)) or np.all(np.isnan(P))):
         P = np.ones(spd.shape)*1013
     elif (((np.all(P != None)) or np.all(~np.isnan(P))) and np.size(P) == 1):
@@ -149,4 +156,4 @@ def get_init(spd, T, SST, lat, P, Rl, Rs, cskin, skin, wl, gust, L, tol, meth,
         tol = ['flux', 1e-3, 0.1, 0.1]
     elif (tol[0] not in ['flux', 'ref', 'all']):
         sys.exit("unknown tolerance input")
-    return lat, P, Rl, Rs, cskin, skin, wl, gust, tol, L
+    return lat, hum, P, Rl, Rs, cskin, skin, wl, gust, tol, L
diff --git a/hum_subs.py b/hum_subs.py
index 385b786ebcd4b3139bafa19044d78fb0fbfabe77..98591c1bcf83830cb504d8a6f46bc410fce0cd59 100644
--- a/hum_subs.py
+++ b/hum_subs.py
@@ -372,11 +372,7 @@ def get_hum(hum, T, sst, P, qmeth):
         specific humidity over sea surface
 
     """
-    if (hum == None):
-        RH = np.ones(sst.shape)*80
-        qsea = qsat_sea(sst, P, qmeth)/1000     # surface water q (kg/kg)
-        qair = qsat_air(T, P, RH, qmeth)/1000   # q of air (kg/kg)
-    elif (hum[0] not in ['rh', 'q', 'Td']):
+    if (hum[0] not in ['rh', 'q', 'Td']):
         sys.exit("unknown humidity input")
         qair, qsea = np.nan, np.nan
     elif (hum[0] == 'rh'):