diff --git a/improver_example_data/realization_cluster_and_match/coarse_resolution_PT0006H00M.nc b/improver_example_data/realization_cluster_and_match/coarse_resolution_PT0006H00M.nc new file mode 100644 index 0000000..9bf46c3 Binary files /dev/null and b/improver_example_data/realization_cluster_and_match/coarse_resolution_PT0006H00M.nc differ diff --git a/improver_example_data/realization_cluster_and_match/coarse_resolution_PT0012H00M.nc b/improver_example_data/realization_cluster_and_match/coarse_resolution_PT0012H00M.nc new file mode 100644 index 0000000..b2002aa Binary files /dev/null and b/improver_example_data/realization_cluster_and_match/coarse_resolution_PT0012H00M.nc differ diff --git a/improver_example_data/realization_cluster_and_match/high_resolution_PT0006H00M.nc b/improver_example_data/realization_cluster_and_match/high_resolution_PT0006H00M.nc new file mode 100644 index 0000000..7f7ba11 Binary files /dev/null and b/improver_example_data/realization_cluster_and_match/high_resolution_PT0006H00M.nc differ diff --git a/improver_example_data/realization_cluster_and_match/high_resolution_PT0012H00M.nc b/improver_example_data/realization_cluster_and_match/high_resolution_PT0012H00M.nc new file mode 100644 index 0000000..a7980b8 Binary files /dev/null and b/improver_example_data/realization_cluster_and_match/high_resolution_PT0012H00M.nc differ