diff --git a/icesat2_dataset_key_variables.yml b/icesat2_dataset_key_variables.yml
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+# Key variables in IceSat-2 Level 2A and 3A Products
+products:
+  - dataset: alt03
+    name: ATLAS/ICESat-2 L2A Global Geolocated Photon Data
+    variable: /gtx/heights/h_ph
+    long_name: photon wgs84 height
+  - dataset: atl04
+    name: ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles
+    variable: /profile_x/nrb_profile
+    long_name: normalized relative backscatter profile 
+  - dataset: atl06
+    name: ATLAS/ICESat-2 L3A Land Ice Height
+    variable: /gtx/land_ice_segments/h_li 
+    long_name: land ice height 
+  - dataset: atl07
+    name: ATLAS/ICESat-2 L3A Sea Ice Height
+    variable:  /gtx/sea_ice_segments/heights/height_segment_height
+    long_name: height of segment surface 
+  - dataset: atl08
+    name: ATLAS/ICESat-2 L3A Land and Vegetation Height
+    variable: /gtx/land_segments/canopy/h_canopy
+    long_name: height canopy
+    reference: https://doi.org/10.1016/j.rse.2018.11.005
+  - dataset: atl09
+    name: ATLAS/ICESat-2 L3A Calibrated Backscatter Profiles and Atmospheric Layer Characteristics
+    variable: /profile_x/high_rate/cab_prof
+    long_name: calibrated attenuated backscatter
+  - dataset: atl10
+    name: ATLAS/ICESat-2 L3A Sea Ice Freeboard
+    variable: /gtx/freeboard_segment/heights/height_segment_height
+    long_name: height of segment surface
+  - dataset: atl11
+    name: ATLAS/ICESat-2 L3B Slope-Corrected Land Ice Height Time Series
+    variable: /ptX/h_corr
+    long_name: mean corrected height
+  - dataset: atl12
+    name: ATLAS/ICESat-2 L3A Ocean Surface Height
+    variable: /gtx/ssh_segments/heights/h
+    long_name: mean sea surface height
+  - dataset: atl13
+    name: ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data
+    variable: /gtx/ht_water_surf
+    long_name: Water surface height