diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index bb64a69245ca752a8d57a59487b7a17867cea4ab..9a3e95085b99e0cfbd8f30e379394bdc78f2da19 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -7,6 +7,29 @@ from aeolus.datasource import CLAVRx_VIIRS
 from icing.moon_phase import *
 from pathlib import Path
 
+# --- CLAVRx Radiometric parameters and metadata ------------------------------------------------
+l1b_ds_list = ['temp_10_4um_nom', 'temp_11_0um_nom', 'temp_12_0um_nom', 'temp_13_3um_nom', 'temp_3_75um_nom',
+               'temp_6_2um_nom', 'temp_6_7um_nom', 'temp_7_3um_nom', 'temp_8_5um_nom', 'temp_9_7um_nom',
+               'refl_0_47um_nom', 'refl_0_65um_nom', 'refl_0_86um_nom', 'refl_1_38um_nom', 'refl_1_60um_nom']
+
+l1b_ds_types = {ds: 'f4' for ds in l1b_ds_list}
+l1b_ds_fill = {l1b_ds_list[i]: -32767 for i in range(10)}
+l1b_ds_fill.update({l1b_ds_list[i+10]: -32768 for i in range(5)})
+l1b_ds_range = {ds: 'actual_range' for ds in l1b_ds_list}
+
+# --- CLAVRx L2 parameters and metadata
+ds_list = ['cld_height_acha', 'cld_geo_thick', 'cld_press_acha', 'sensor_zenith_angle', 'supercooled_prob_acha',
+           'supercooled_cloud_fraction', 'cld_temp_acha', 'cld_opd_acha', 'solar_zenith_angle',
+           'cld_reff_acha', 'cld_reff_dcomp', 'cld_reff_dcomp_1', 'cld_reff_dcomp_2', 'cld_reff_dcomp_3',
+           'cld_opd_dcomp', 'cld_opd_dcomp_1', 'cld_opd_dcomp_2', 'cld_opd_dcomp_3', 'cld_cwp_dcomp', 'iwc_dcomp',
+           'lwc_dcomp', 'cld_emiss_acha', 'conv_cloud_fraction', 'cloud_type', 'cloud_phase', 'cloud_mask']
+ds_types = {ds_list[i]: 'f4' for i in range(23)}
+ds_types.update({ds_list[i+23]: 'i1' for i in range(3)})
+ds_fill = {ds_list[i]: -32768 for i in range(23)}
+ds_fill.update({ds_list[i+23]: -128 for i in range(3)})
+ds_range = {ds_list[i]: 'actual_range' for i in range(23)}
+ds_range.update({ds_list[i]: None for i in range(3)})
+
 emis_params = ['temp_10_4um_nom', 'temp_11_0um_nom', 'temp_12_0um_nom', 'temp_13_3um_nom', 'temp_3_9um_nom',
                'temp_6_7um_nom']