diff --git a/src/pypromice/process/aws.py b/src/pypromice/process/aws.py
index ec872009..0d830f34 100644
--- a/src/pypromice/process/aws.py
+++ b/src/pypromice/process/aws.py
@@ -118,7 +118,7 @@ def getL3(self):
     #         logger.info('Resampling to hour')
     #     return resampled
 
-    def writeArr(self, dataset, outpath):
+    def writeArr(self, dataset, outpath, t=None):
         '''Write L3 data to .nc and .csv hourly and daily files
 
         Parameters
@@ -128,13 +128,19 @@ def writeArr(self, dataset, outpath):
         outpath : str
             Output directory
         t : str
-            Resampling string
+            Resampling string. This is automatically defined based
+            on the data type if not given. The default is None.
         '''
-        f = [l.attrs['format'] for l in self.L0]
-        if 'raw' in f or 'STM' in f:
-            write.prepare_and_write(dataset, outpath, self.vars, self.meta, '10min')
+        if t is not None:
+            write.prepare_and_write(dataset, outpath, self.vars, self.meta, t)
         else:
-            write.prepare_and_write(dataset, outpath, self.vars, self.meta, '60min')
+            f = [l.attrs['format'] for l in self.L0]
+            if 'raw' in f or 'STM' in f:
+                write.prepare_and_write(dataset, outpath, self.vars, 
+                                        self.meta, '10min')
+            else:
+                write.prepare_and_write(dataset, outpath, self.vars, 
+                                        self.meta, '60min')
                 
     # def addAttributes(self, dataset):
     #     '''Add variable and attribute metadata
diff --git a/src/pypromice/process/get_l2.py b/src/pypromice/process/get_l2.py
index a29b2e48..bc63dd9b 100644
--- a/src/pypromice/process/get_l2.py
+++ b/src/pypromice/process/get_l2.py
@@ -3,8 +3,6 @@
 from argparse import ArgumentParser
 import pypromice
 from pypromice.process.aws import AWS
-from pypromice.process.write import prepare_and_write
-from pypromice.process.load import getVars, getMeta
 
 def parse_arguments_l2():
     parser = ArgumentParser(description="AWS L2 processor")
@@ -19,6 +17,8 @@ def parse_arguments_l2():
                         required=False, help='File path to variables look-up table')
     parser.add_argument('-m', '--metadata', default=None, type=str, 
                         required=False, help='File path to metadata')
+    parser.add_argument('-t', '--time', default=None, type=str, 
+                        required=False, help='Resampling frequency')
     args = parser.parse_args()
     return args
 
@@ -59,10 +59,7 @@ def get_l2():
     if args.outpath is not None:
         if not os.path.isdir(args.outpath):
             os.mkdir(args.outpath)
-        if aws.L2.attrs['format'] == 'raw':
-            prepare_and_write(aws.L2, args.outpath, getVars(), getMeta(), '10min')
-        prepare_and_write(aws.L2, args.outpath, getVars(), getMeta(), '60min')
-
+        aws.writeArr(aws.L2, args.outpath, args.time)
 
 if __name__ == "__main__":  
     get_l2()
diff --git a/src/pypromice/process/get_l3.py b/src/pypromice/process/get_l3.py
index eccdab1a..688ada59 100644
--- a/src/pypromice/process/get_l3.py
+++ b/src/pypromice/process/get_l3.py
@@ -17,6 +17,8 @@ def parse_arguments_l3():
                         required=False, help='File path to variables look-up table')
     parser.add_argument('-m', '--metadata', default=None, type=str, 
                         required=False, help='File path to metadata')
+    parser.add_argument('-t', '--time', default=None, type=str, 
+                        required=False, help='Resampling frequency')
     args = parser.parse_args()
     return args
 
@@ -54,9 +56,11 @@ def get_l3():
     aws.getL2()
     aws.getL3()
     
-    # Write out Level 3
+    # Write out level 3
     if args.outpath is not None:
-    	aws.writeL3(args.outpath)
+        if not os.path.isdir(args.outpath):
+            os.mkdir(args.outpath)
+        aws.writeArr(aws.L3, args.outpath, args.time)
         
 if __name__ == "__main__":  
     get_l3()