{"discovery":{"qdrant_configured":true,"strategy":"lexical"},"facets":{"access":{"free":6},"modality":{"elevation":1,"hydrology":5,"radar-altimetry":6},"provider":{"copernicus":6},"tier":{"preprocessed":6}},"query":{"access":null,"all_weather":null,"bbox":null,"datetime":null,"limit":null,"max_gsd":null,"modality":"radar-altimetry","night":null,"offset":null,"provider":null,"q":null,"sort":null,"tasking":null,"tier":null},"results":[{"access":"free","access_methods":[{"kind":"https","notes":"Preferred Copernicus publisher discovery portal. Product citation, licensing and download authentication requirements apply.","url":"https://dataspace.copernicus.eu/"},{"collection":"sentinel-3-sr-2-wat-ntc","kind":"stac-api","notes":"Verified publisher STAC collection on 2026-09-30. Native license marker: other. See publisher license links. Timeliness category: NT. Publisher timeliness: P1M. These are observations, not forecasts; timeliness metadata is not a live-service guarantee.","url":"https://stac.dataspace.copernicus.eu/v1"}],"all_weather":false,"bbox":[-180.0,-90.0,180.0,90.0],"category":"imagery","end":null,"formats":["STAC","NetCDF"],"gsd_m":null,"id":"cdse-s3-ocean-altimetry","instruments":["sral"],"keywords":["earth-observation","primary-source","stac","sentinel-3-sr-2-wat-ntc","altimetry","along-track"],"latency_hours":null,"level":"L2","license":"copernicus-open","modalities":["radar-altimetry","hydrology"],"night":true,"platforms":["sentinel-3a","sentinel-3b"],"pricing":null,"provider":"copernicus","provider_name":"ESA / Copernicus","revisit_hours":null,"score":1.0,"start":"2017-01-28","summary":"Ocean radar-altimetry observations. Along-track surface height is not a gridded terrain DEM; use geophysical corrections and instrument-mode conventions.","tasking":false,"tier":"preprocessed","title":"Sentinel-3 SRAL Ocean Radar Altimetry (NTC)"},{"access":"free","access_methods":[{"kind":"https","notes":"Preferred Copernicus publisher discovery portal. Product citation, licensing and download authentication requirements apply.","url":"https://dataspace.copernicus.eu/"},{"collection":"sentinel-3-sr-2-lan-hy-ntc","kind":"stac-api","notes":"Verified publisher STAC collection on 2026-09-30. Native license marker: other. See publisher license links. Timeliness category: NT. Publisher timeliness: P1M. These are observations, not forecasts; timeliness metadata is not a live-service guarantee.","url":"https://stac.dataspace.copernicus.eu/v1"}],"all_weather":false,"bbox":[-180.0,-90.0,180.0,90.0],"category":"imagery","end":null,"formats":["STAC","NetCDF"],"gsd_m":null,"id":"cdse-s3-inland-water-altimetry","instruments":["sral"],"keywords":["earth-observation","primary-source","stac","sentinel-3-sr-2-lan-hy-ntc","altimetry","along-track"],"latency_hours":null,"level":"L2","license":"copernicus-open","modalities":["radar-altimetry","hydrology"],"night":true,"platforms":["sentinel-3a","sentinel-3b"],"pricing":null,"provider":"copernicus","provider_name":"ESA / Copernicus","revisit_hours":null,"score":1.0,"start":"2016-03-01","summary":"Radar-altimetry surface-height estimates over lakes and rivers. Granule footprints are distinct from individual along-track sample positions inside publisher files.","tasking":false,"tier":"preprocessed","title":"Sentinel-3 SRAL Land Radar Altimetry - Hydrology (NTC)"},{"access":"free","access_methods":[{"kind":"https","notes":"Preferred Copernicus publisher discovery portal. Product citation, licensing and download authentication requirements apply.","url":"https://dataspace.copernicus.eu/"},{"collection":"sentinel-3-sr-2-lan-si-ntc","kind":"stac-api","notes":"Verified publisher STAC collection on 2026-09-30. Native license marker: other. See publisher license links. Timeliness category: NT. Publisher timeliness: P1M. These are observations, not forecasts; timeliness metadata is not a live-service guarantee.","url":"https://stac.dataspace.copernicus.eu/v1"}],"all_weather":false,"bbox":[-180.0,-90.0,180.0,90.0],"category":"imagery","end":null,"formats":["STAC","NetCDF"],"gsd_m":null,"id":"cdse-s3-sea-ice-freeboard","instruments":["sral"],"keywords":["earth-observation","primary-source","stac","sentinel-3-sr-2-lan-si-ntc","altimetry","along-track"],"latency_hours":null,"level":"L2","license":"copernicus-open","modalities":["radar-altimetry","hydrology"],"night":true,"platforms":["sentinel-3a","sentinel-3b"],"pricing":null,"provider":"copernicus","provider_name":"ESA / Copernicus","revisit_hours":null,"score":1.0,"start":"2016-03-01","summary":"Radar-freeboard estimates over Arctic and Antarctic sea ice. Freeboard is distinct from ice thickness and terrain height; corrections and uncertainty apply.","tasking":false,"tier":"preprocessed","title":"Sentinel-3 SRAL Land Radar Altimetry - Sea Ice (NTC)"},{"access":"free","access_methods":[{"kind":"https","notes":"Preferred publisher discovery portal. CLMS data policy, citation, product quality and download authentication requirements apply.","url":"https://dataspace.copernicus.eu/"},{"collection":"clms_wl-lakes_global_vector_daily_v2_geojson","kind":"stac-api","notes":"Verified populated publisher collection on 2026-09-30. Preserve native acquisition intervals, publication time and quality/uncertainty assets. License: https://land.copernicus.eu/en/data-policy. Publisher timeliness is not a live-service guarantee.","url":"https://stac.dataspace.copernicus.eu/v1"}],"all_weather":false,"bbox":[-154.9,-50.33,170.17,71.48],"category":"imagery","end":null,"formats":["STAC","GeoJSON"],"gsd_m":null,"id":"cdse-clms-lake-water-level","instruments":["radar-altimeter"],"keywords":["earth-observation","primary-source","stac","radar-altimetry","hydrology","clms_wl-lakes_global_vector_daily_v2_geojson"],"latency_hours":null,"level":"L3","license":"provider-terms","modalities":["radar-altimetry","hydrology"],"night":true,"platforms":["sentinel-3a","sentinel-3b","sentinel-6a"],"pricing":null,"provider":"copernicus","provider_name":"ESA / Copernicus","revisit_hours":null,"score":1.0,"start":"1992-09-26","summary":"Lake water-level time-series artifacts from satellite radar altimetry, located by publisher point geometries. Heights use the EGM2008 geoid; each GeoJSON artifact can contain multiple observation dates and uncertainties. These points are not terrain grids or lake extent polygons. These are observations or derived estimates, not weather forecasts. Published cadence is distinct from continuous real-time availability.","tasking":false,"tier":"preprocessed","title":"CLMS Water Level (WL) Lakes Global vector daily V2 (GeoJSON)"},{"access":"free","access_methods":[{"kind":"https","notes":"Preferred publisher discovery portal. CLMS citation, quality and download authentication requirements apply.","url":"https://dataspace.copernicus.eu/"},{"collection":"clms_wl-rivers_global_vector_daily_v2_geojson","kind":"stac-api","notes":"Verified populated publisher collection on 2026-09-30. License: https://land.copernicus.eu/en/data-policy. Native footprint geometry and acquisition intervals are retained.","url":"https://stac.dataspace.copernicus.eu/v1"}],"all_weather":false,"bbox":[-177.94,-53.93,179.66,74.05],"category":"imagery","end":null,"formats":["STAC","GeoJSON"],"gsd_m":null,"id":"cdse-clms-river-water-level","instruments":["radar-altimeter"],"keywords":["earth-observation","primary-source","stac","river-water-level","clms_wl-rivers_global_vector_daily_v2_geojson"],"latency_hours":null,"level":"L3","license":"provider-terms","modalities":["radar-altimetry","hydrology"],"night":true,"platforms":["sentinel-3a","sentinel-3b"],"pricing":null,"provider":"copernicus","provider_name":"ESA / Copernicus","revisit_hours":null,"score":1.0,"start":"2008-07-12","summary":"Defined as the height, in meters above the geoid, of the reflecting surface of continental water bodies. It is observed by space radar altimeters and data are available at global scale in near real time in vector format with the temporal extent from 2002 to present. These are mapped products or observation time series, not weather forecasts or terrain height grids. Published archive extent and cadence do not guarantee valid pixels everywhere or continuous real-time observations.","tasking":false,"tier":"preprocessed","title":"CLMS Water Level (WL) Rivers Global vector daily V2 (GeoJSON)"},{"access":"free","access_methods":[{"kind":"https","notes":"Preferred Copernicus publisher discovery portal. Product citation, licensing and download authentication requirements apply.","url":"https://dataspace.copernicus.eu/"},{"collection":"sentinel-3-sr-2-lan-li-ntc","kind":"stac-api","notes":"Verified native publisher collection on 2026-10-02. Native metadata license: other. Product-specific licensing, citation and quality requirements apply. Granule footprints identify artifacts, not every observation location within assets. Follow continuation pages for the complete requested search.","url":"https://stac.dataspace.copernicus.eu/v1"}],"all_weather":false,"bbox":[-180.0,-90.0,180.0,90.0],"category":"imagery","end":null,"formats":["STAC","HDF5"],"gsd_m":null,"id":"cdse-s3-land-ice-altimetry","instruments":["sral"],"keywords":["earth-observation","primary-source","stac","sentinel-3-sr-2-lan-li-ntc","altimetry","elevation"],"latency_hours":null,"level":"L2","license":"copernicus-open","modalities":["radar-altimetry","elevation"],"night":true,"platforms":["sentinel-3a","sentinel-3b"],"pricing":null,"provider":"copernicus","provider_name":"ESA / Copernicus","revisit_hours":null,"score":1.0,"start":"2016-03-01","summary":"Sentinel-3 SRAL Level-2 land-ice surface-topography estimates for the Greenland and Antarctic ice sheets. Non-time-critical products require geophysical corrections and quality screening. Native granule polygons are file coverage, not per-sample elevation geometries or a complete terrain raster.","tasking":false,"tier":"preprocessed","title":"Sentinel-3 SRAL Land Radar Altimetry - Land Ice (NTC)"}],"returned":6,"total":6}