diff --git a/glidertest/fetchers.py b/glidertest/fetchers.py
index cd89326..3888a7d 100644
--- a/glidertest/fetchers.py
+++ b/glidertest/fetchers.py
@@ -10,6 +10,7 @@
         "sea045_20230530T0832_delayed.nc": "sha256:9a97b5b212e9ad751909e175bc01fdc75fd7b7fd784cc59d8e9f29e8bdfb829f",
         "sg015_20050213T230253_delayed.nc": "sha256:ca64e33e9f317e1fc3442e74485a9bf5bb1b4a81b5728e9978847b436e0586ab",
         "sg014_20040924T182454_delayed.nc": "sha256:c9fca08ce676573224c04512f4d5bfe251d0419478ee433dfefa03aa70e2eb9a",
+        "sg014_20040924T182454_delayed_subset.nc": "sha256:0e97a4107364d27364d076ed8007f08c891b2015b439cf524a44612de0a1a2ea",
     },
 )
 
diff --git a/notebooks/demo.ipynb b/notebooks/demo.ipynb
index e4e46d0..7a7deab 100644
--- a/notebooks/demo.ipynb
+++ b/notebooks/demo.ipynb
@@ -74,7 +74,8 @@
    "source": [
     "#ds = fetchers.load_sample_dataset(dataset_name=\"sea055_20220104T1536_delayed.nc\") # Full SeaExplorer mission in the Baltic\n",
     "#ds = fetchers.load_sample_dataset(dataset_name=\"sg015_20050213T230253_delayed.nc\") # Seaglider data\n",
-    "#ds = fetchers.load_sample_dataset(dataset_name=\"sg014_20040924T182454_delayed.nc\") # Full Seaglider mission in the Labrador Sea\n"
+    "#ds = fetchers.load_sample_dataset(dataset_name=\"sg014_20040924T182454_delayed.nc\") # Full Seaglider mission in the Labrador Sea\n",
+    "#ds = fetchers.load_sample_dataset(dataset_name=\"sg014_20040924T182454_delayed_subset.nc\") #Subset of a full Seaglider mission in the Labrador Sea\n"
    ]
   },
   {
@@ -103,7 +104,7 @@
    "outputs": [],
    "source": [
     "# Load glider dataset with vertical velocity parameters\n",
-    "ds_sg014 = fetchers.load_sample_dataset(dataset_name=\"sg014_20040924T182454_delayed.nc\") # Full Seaglider mission in the Labrador Sea\n",
+    "ds_sg014 = fetchers.load_sample_dataset(dataset_name=\"sg014_20040924T182454_delayed_subset.nc\") # Subset of a full Seaglider mission in the Labrador Sea\n",
     "\n",
     "# Calculate vertical seawater velocity \n",
     "# First, calculate the vertical speed of the glider from the depth data\n",
@@ -113,8 +114,8 @@
     "ds_sg014 = tools.calc_seawater_w(ds_sg014)\n",
     "\n",
     "# Plot about 20 profiles to see the behaviour of the flight model\n",
-    "start_prof = 500\n",
-    "end_prof = 520\n",
+    "start_prof = 400\n",
+    "end_prof = 420\n",
     "tools.plot_vertical_speeds_with_histograms(ds_sg014, start_prof, end_prof)"
    ]
   },
@@ -471,7 +472,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.8"
+   "version": "3.10.12"
   }
  },
  "nbformat": 4,