diff --git a/config/exp_template.py b/config/exp_template.py
index 0c97c5191a86ba237bb2befb2986bad77c826597..58e71ed1b177b6febad8ad637033066a0816b91f 100755
--- a/config/exp_template.py
+++ b/config/exp_template.py
@@ -5,12 +5,16 @@ exp.expname = "template_experiment"
 exp.model_dx = 2000
 exp.n_ens = 40
 exp.superob_km = False  # False or int (spatial averaging of observations, unit: km)
+exp.do_quality_control = False  # bool
 
-exp.use_existing_obsseq = False  # False or pathname (use precomputed obs_seq.out files)
+# Use existing observations (path to obs_seq.out) or generate observations (False)
+exp.use_existing_obsseq = False
 #exp.use_existing_obsseq = '/users/students/lehre/advDA_s2023/dartwrf_tutorial/very_cold_observation.out'
 
-exp.nature_expname = 'exp_v1.18_P1_nature+1'
+# path from where observations can be generated
+exp.nature_wrfout_pattern = '/jetfs/home/lkugler/data/sim_archive/exp_v1.19_P3_wbub7_nat/*/1/wrfout_d01_%Y-%m-%d_%H:%M:%S'
 
+# for initialization profiles
 exp.input_profile = '/mnt/jetfs/home/lkugler/data/initial_profiles/wrf/ens/2022-03-31/raso.fc.<iens>.wrfprof'
 
 
@@ -98,18 +102,21 @@ t = dict(var_name='Temperature', unit='[K]',
          loc_horiz_km=50, loc_vert_km=2.5)
 
 q = dict(var_name='Specific humidity', unit='[kg/kg]',
-         kind='RADIOSONDE_SPECIFIC_HUMIDITY', n_obs=1,
+         kind='RADIOSONDE_SPECIFIC_HUMIDITY', 
+         n_obs=961,  obs_locations='square_array_evenly_on_grid',
          error_generate=0., error_assimilate=5*1e-5,
          heights=[1000], #range(1000, 17001, 2000),
          loc_horiz_km=0.1, loc_vert_km=2.5)
 
 t2m = dict(var_name='SYNOP Temperature', unit='[K]',
-           kind='SYNOP_TEMPERATURE', n_obs=1, 
+           kind='SYNOP_TEMPERATURE', 
+           n_obs=961,  obs_locations='square_array_evenly_on_grid',
            error_generate=0.1, error_assimilate=0.1,
            loc_horiz_km=40, loc_vert_km=2.5)
 
 psfc = dict(var_name='SYNOP Pressure', unit='[Pa]',
-            kind='SYNOP_SURFACE_PRESSURE', n_obs=1, 
+            kind='SYNOP_SURFACE_PRESSURE', 
+            n_obs=961,  obs_locations='square_array_evenly_on_grid',
             error_generate=50., error_assimilate=100.,
             loc_horiz_km=32, loc_vert_km=5)