diff --git a/city_metrix/layers/__init__.py b/city_metrix/layers/__init__.py
index 3ece2ef..bef56c3 100644
--- a/city_metrix/layers/__init__.py
+++ b/city_metrix/layers/__init__.py
@@ -15,3 +15,4 @@
 from .average_net_building_height import AverageNetBuildingHeight
 from .open_buildings import OpenBuildings
 from .tree_canopy_hight import TreeCanopyHeight
+from .alos_dsm import AlosDSM
diff --git a/tests/layers.py b/tests/layers.py
index fb8aa50..ce9fc3f 100644
--- a/tests/layers.py
+++ b/tests/layers.py
@@ -1,6 +1,6 @@
 import ee
 
-from city_metrix.layers import LandsatCollection2, Albedo, LandSurfaceTemperature, EsaWorldCover, EsaWorldCoverClass, TreeCover, AverageNetBuildingHeight, OpenStreetMap, OpenStreetMapClass, UrbanLandUse, OpenBuildings, TreeCanopyHeight
+from city_metrix.layers import LandsatCollection2, Albedo, LandSurfaceTemperature, EsaWorldCover, EsaWorldCoverClass, TreeCover, AverageNetBuildingHeight, OpenStreetMap, OpenStreetMapClass, UrbanLandUse, OpenBuildings, TreeCanopyHeight, AlosDSM
 from city_metrix.layers.layer import get_image_collection
 from .conftest import MockLayer, MockMaskLayer, ZONES, LARGE_ZONES, MockLargeLayer
 
@@ -93,4 +93,8 @@ def test_openbuildings():
 
 def test_tree_canopy_hight():
     count = TreeCanopyHeight().get_data(SAMPLE_BBOX).count()
-    assert count
\ No newline at end of file
+    assert count
+    
+def test_AlosDSM():
+    mean = AlosDSM().get_data(SAMPLE_BBOX).mean()
+    assert mean