22M	obs_bio.parquet
3.5M	obs_env/measurement_type=oxygen_ml_l/data.parquet
4.5M	obs_env/measurement_type=temperature/data.parquet
308K	sample_spatial.parquet
 11M	sample_root.parquet
1.5M	spatial_spike.geojson
400K	grid.geojson
 56K	taxon_bio.parquet
 16K	cruise.parquet
 28M	/Users/bbest/_big/calcofi/explore-spike/data/obs_bio.parquet