{"discovery":{"qdrant_configured":true,"strategy":"lexical"},"facets":{"access":{"free":1},"modality":{"acoustic":1},"provider":{"noaa-ncei":1},"tier":{"product":1}},"query":{"access":null,"all_weather":null,"bbox":null,"datetime":null,"limit":null,"max_gsd":null,"modality":"acoustic","night":null,"offset":null,"provider":null,"q":null,"sort":null,"tasking":null,"tier":null},"results":[{"access":"free","access_methods":[{"kind":"https","notes":"Catalog entry reviewed 2026-09-29; start denotes catalog inclusion, not archive inception. Bounding box is nominal scope, not survey coverage. Follow source inventories, terms and formats. Discovery only; no live footprint adapter is supplied for this collection.","url":"https://www.ncei.noaa.gov/products/passive-acoustic-data"}],"all_weather":false,"bbox":[-180.0,-90.0,180.0,90.0],"category":"in-situ","end":null,"formats":["WAV","FLAC","CSV","NetCDF"],"gsd_m":null,"id":"noaa-passive-acoustic","instruments":["Hydrophones"],"keywords":["maritime","subsurface","environment"],"latency_hours":null,"level":"L4","license":"provider-terms","modalities":["acoustic"],"night":false,"platforms":["Archived acoustic monitoring deployments"],"pricing":null,"provider":"noaa-ncei","provider_name":"NOAA National Centers for Environmental Information","revisit_hours":null,"score":1.0,"start":"2026-09-29","summary":"Public environmental hydrophone recordings, including sanctuary monitoring. Recording availability and contributor terms vary; no operational surveillance access is implied.","tasking":false,"tier":"product","title":"NOAA Passive Acoustic Archive"}],"returned":1,"total":1}