diff --git a/scripts/create_onecampaign_radar_dataset.py b/scripts/create_onecampaign_radar_dataset.py
new file mode 100644
index 0000000..9de4265
--- /dev/null
+++ b/scripts/create_onecampaign_radar_dataset.py
@@ -0,0 +1,76 @@
+import xarray as xr
+from pathlib import Path
+from typing import List
+
+all_flights = [
+    "HALO-20240811a",
+    "HALO-20240813a",
+    "HALO-20240816a",
+    "HALO-20240818a",
+    "HALO-20240821a",
+    "HALO-20240822a",
+    "HALO-20240825a",
+    "HALO-20240827a",
+    "HALO-20240829a",
+    "HALO-20240831a",
+    "HALO-20240903a",
+    "HALO-20240906a",
+    "HALO-20240907a",
+    "HALO-20240909a",
+    "HALO-20240912a",
+    "HALO-20240914a",
+    "HALO-20240916a",
+    "HALO-20240919a",
+]
+
+
+def radar_dataset(flight):
+    return (
+        f"ipns://latest.orcestra-campaign.org/products/HALO/radar/moments/{flight}.zarr"
+    )
+
+
+def onedataset_from_scratch(dataset_file: Path, flights: List[str]):
+    ds = [
+        xr.open_dataset(radar_dataset(f), engine="zarr").chunk("auto") for f in flights
+    ]
+    ds = xr.concat(ds, dim="time").chunk("auto")
+    ds.to_zarr(dataset_file, mode="w")
+
+
+def append_to_dataset_scratch(dataset_file: Path, flights: List[str]):
+    ds = xr.open_dataset(dataset_file, engine="zarr").chunks("auto")
+    add_ds = [
+        xr.open_dataset(radar_dataset(f), engine="zarr").chunk("auto") for f in flights
+    ]
+    ds = xr.concat([ds, add_ds], dim="time").chunk("auto")
+    ds.to_zarr(dataset_file, mode="w")
+
+
+def main():
+    """
+    e.g.
+    python scripts/create_onecampaign_radar_dataset.py ./level1.zarr True all
+    or
+    python scripts/create_onecampaign_radar_dataset.py ./level1.zarr False HALO-20240816a
+    """
+    import argparse
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument("dataset", type=Path)
+    parser.add_argument("is_new", type=bool)
+    parser.add_argument("flights", nargs="+", type=str)
+    args = parser.parse_args()
+
+    if args.is_new:
+        if args.flights[0] == "all":
+            flights = all_flights
+        else:
+            flights = args.flights
+        onedataset_from_scratch(args.dataset, flights)
+    else:
+        append_to_dataset_scratch(args.dataset, args.append_flights)
+
+
+if __name__ == "__main__":
+    exit(main())