diff --git a/modules/util/util.py b/modules/util/util.py
index b9a4684f5851fa2af09bf98a8e9bceebce856391..4174a605c7beca9b0515352464f0cadf31876f17 100644
--- a/modules/util/util.py
+++ b/modules/util/util.py
@@ -519,6 +519,24 @@ def scale(data, param, mean_std_dict, copy=True):
     return data
 
 
+def scale2(data, lo, hi, copy=True):
+    if copy:
+        data = data.copy()
+
+    shape = data.shape
+    data = data.flatten()
+
+    data -= lo
+    data /= (hi - lo)
+
+    not_valid = np.isnan(data)
+    data[not_valid] = 0
+
+    data = np.reshape(data, shape)
+
+    return data
+
+
 f = open(ancillary_path+'geos_crs_goes16_FD.pkl', 'rb')
 geos_goes16_fd = pickle.load(f)
 f.close()