MODIS/Terra Aerosol 5-Min L2 Swath 3km
Collection 6.1 MODIS Terra Level 2 3 km aerosol optical-depth and related Dark Target retrievals over suitable land and ocean. This separate product contains Dark Target retrievals only, not the Deep Blue or merged retrievals in the 10 km aerosol files. Nominal 3 km nadir product sampling is distinct from MODIS sensor resolution and varies across the swath. Passive reflected-solar multispectral retrievals require daytime and appropriate cloud/snow/ice-free surface conditions. Column aerosol optical depth is not a direct surface PM2.5 concentration, verified plume boundary or forecast. Apply product-specific quality, applicability, uncertainty and sampling guidance. Native granule polygons and observation intervals remain intact; file polygons do not delineate individual clouds/plumes or establish valid retrievals everywhere. Only requested metadata pages are indexed; archive registration does not guarantee current freshness.
Scenes & acquisition
Access endpoints
- httpshttps://search.earthdata.nasa.gov/Preferred NASA publisher discovery. Public metadata does not bypass Earthdata download authentication.
- stac-apihttps://cmr.earthdata.nasa.gov/stac/LAADSMOD04_3K_6.1 · Verified populated primary publisher collection on 2026-10-04. Native metadata license: CC0-1.0. Preserve native polygons, observation intervals and publisher timestamps. Apply product-specific quality, citation and Earthdata/LAADS download requirements. HDF-EOS/HDF4 files remain remote; granule polygons do not identify every valid retrieval.
- httpshttps://darktarget.gsfc.nasa.gov/products/modisPrimary NASA product definitions, retrieval sampling, day/night applicability and quality guidance.
Licence
Free access under the provider's own terms of use; check them for redistribution and commercial use.
Machine view
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