{
  "extent": {
    "spatial": {"bbox": [[
      -54.99388688178614,
      -37.99411559587752,
      -25.008122697876512,
      10.991016847158805
    ]]},
    "temporal": {"interval": [[
      "2011-01-01T00:00:00.000Z",
      "2011-12-31T23:59:59.999Z"
    ]]}
  },
  "stac_version": "1.0.0",
  "keywords": [
    "modis",
    "aqua",
    "level-3",
    "suspended particulate matter",
    "spm",
    "ocean color",
    "observation",
    "daily",
    "surface",
    "brazil"
  ],
  "deprecated": false,
  "description": "The MODIS-Aqua daily Suspended Particulate Matter concentration (SPM, measured in g·m-3) utilizes daily data from the MODIS sensor onboard NASA's Aqua satellite (MODIS-Aqua). This data has a nominal resolution of 1 km at nadir and is atmospherically corrected using the Ocean Color - Simultaneous Marine and Aerosol Retrieval Tool (OC-SMART) (FAN et al., 2021). The SPM estimates are obtained from a blend of two SPM algorithms (Salah Salah et al., 2025). The daily SPM products are the mosaic of several images of SPM estimates obtained for the same day and merged into daily composites utilizing the SNAP mosaicking tool.",
  "bdc:type": "collection",
  "type": "Collection",
  "title": "MODIS-Aqua Daily Suspended Particulate Matter - OC-SMART AC 2011",
  "version": "1",
  "license": "Creative Commons Zero (CC0)",
  "assets": {
    "metadata_ogc_17_069r3": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1",
      "title": "OGC 17-069r3 metadata",
      "type": "application/geo+json;profile=\"http://www.opengis.net/spec/ogcapi-features-1/1.0\""
    },
    "metadata_iso_19139": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/vnd.iso.19139%2Bxml",
      "title": "ISO 19139 metadata",
      "type": "application/vnd.iso.19139+xml"
    },
    "metadata_iso_19139_2": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/vnd.iso.19139-2%2Bxml",
      "title": "ISO 19139-2 metadata",
      "type": "application/vnd.iso.19139-2+xml"
    },
    "metadata_dif_10": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/dif10%2Bxml",
      "title": "DIF-10 metadata",
      "type": "application/dif10+xml"
    },
    "metadata_ogc_17_084r1": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?mode=owc",
      "title": "OGC 17-084r1 metadata",
      "type": "application/geo+json;profile=\"http://www.opengis.net/spec/eoc-geojson/1.0\""
    },
    "metadata_html": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=text/html",
      "title": "HTML",
      "type": "text/html"
    },
    "metadata_iso_191115_3": {
      "roles": ["metadata"],
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/vnd.iso.19115-3%2Bxml",
      "title": "ISO 19115-3 metadata",
      "type": "application/vnd.iso.19115-3+xml"
    },
    "quicklook": {
      "roles": ["overview"],
      "href": "https://data.inpe.br/bdc/data/MODISA-OCSMART-SPM-DAILY/v1/2022/12/MODIS_OCSMART_SPM_1D_1km_Brazil_20221231.png",
      "type": "image/png",
      "title": "graphic overview"
    }
  },
  "bdc:public": true,
  "links": [
    {
      "rel": "canonical",
      "href": "https://data.inpe.br/bdc/stac/v1/collections/MODISA-OCSMART-SPM-DAILY-1",
      "type": "application/json",
      "title": "Original metadata"
    },
    {
      "rel": "license",
      "href": "https://oceancolor.gsfc.nasa.gov/data/10.5067/AQUA/MODIS/L2/OC/2022.0/",
      "title": "Creative Commons Zero (CC0)"
    },
    {
      "rel": "self",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011",
      "type": "application/json"
    },
    {
      "rel": "root",
      "href": "https://fedeo.ceos.org",
      "type": "application/json",
      "title": "FedEO Clearinghouse"
    },
    {
      "rel": "parent",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1",
      "title": "MODISA-OCSMART-SPM-DAILY-1",
      "type": "application/json"
    },
    {
      "rel": "search",
      "href": "https://fedeo.ceos.org/collections/series/items/MODISA-OCSMART-SPM-DAILY-1/api",
      "type": "application/opensearchdescription+xml",
      "title": "OpenSearch Description Document"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/atom%2Bxml",
      "type": "application/atom+xml",
      "title": "Atom format"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/xml",
      "type": "application/xml",
      "title": "Dublin Core metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/ld%2Bjson",
      "type": "application/ld+json",
      "title": "JSON-LD metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/ld%2Bjson;profile=https://schema.org",
      "type": "application/ld+json;profile=\"https://schema.org\"",
      "title": "JSON-LD (schema.org) metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/ld%2Bjson;profile=http://data.europa.eu/930/",
      "type": "application/ld+json;profile=\"http://data.europa.eu/930/\"",
      "title": "JSON-LD (GeoDCAT-AP) metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/rdf%2Bxml",
      "type": "application/rdf+xml",
      "title": "RDF/XML metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/rdf%2Bxml;profile=https://schema.org",
      "type": "application/rdf+xml;profile=\"https://schema.org\"",
      "title": "RDF/XML (schema.org) metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=application/rdf%2Bxml;profile=http://data.europa.eu/930/",
      "type": "application/rdf+xml;profile=\"http://data.europa.eu/930/\"",
      "title": "RDF/XML (GeoDCAT-AP) metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=text/turtle",
      "type": "text/turtle",
      "title": "Turtle metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=text/turtle;profile=https://schema.org",
      "type": "text/turtle;profile=\"https://schema.org\"",
      "title": "Turtle (schema.org) metadata"
    },
    {
      "rel": "alternate",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1?httpAccept=text/turtle;profile=http://data.europa.eu/930/",
      "type": "text/turtle;profile=\"http://data.europa.eu/930/\"",
      "title": "Turtle (GeoDCAT-AP) metadata"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/01",
      "type": "application/json",
      "title": "2011-01"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/02",
      "type": "application/json",
      "title": "2011-02"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/03",
      "type": "application/json",
      "title": "2011-03"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/04",
      "type": "application/json",
      "title": "2011-04"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/05",
      "type": "application/json",
      "title": "2011-05"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/06",
      "type": "application/json",
      "title": "2011-06"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/07",
      "type": "application/json",
      "title": "2011-07"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/08",
      "type": "application/json",
      "title": "2011-08"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/09",
      "type": "application/json",
      "title": "2011-09"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/10",
      "type": "application/json",
      "title": "2011-10"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/11",
      "type": "application/json",
      "title": "2011-11"
    },
    {
      "rel": "child",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011/12",
      "type": "application/json",
      "title": "2011-12"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111231?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111231"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111230?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111230"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111229?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111229"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111228?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111228"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111227?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111227"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111226?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111226"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111225?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111225"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111224?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111224"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111223?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111223"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111222?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111222"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111221?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111221"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111220?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111220"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111219?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111219"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111218?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111218"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111217?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111217"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111216?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111216"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111215?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111215"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111214?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111214"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111213?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111213"
    },
    {
      "rel": "item",
      "href": "https://fedeo.ceos.org/collections/MODISA-OCSMART-SPM-DAILY-1/items/MODIS_OCSMART_SPM_1D_1km_Brazil_20111212?httpAccept=application/geo%2Bjson;profile=%22https:%2F%2Fstacspec.org%22",
      "type": "application/geo+json",
      "title": "MODIS_OCSMART_SPM_1D_1km_Brazil_20111212"
    },
    {
      "rel": "first",
      "href": "https://fedeo.ceos.org/series/eo:platform/AQUA/MODISA-OCSMART-SPM-DAILY-1/2011?startRecord=1",
      "type": "application/json"
    }
  ],
  "id": "MODISA-OCSMART-SPM-DAILY-1-2011",
  "item_assets": {
    "SPM": {
      "roles": ["data"],
      "type": "application/netcdf",
      "title": "Suspended Particulate Matter concentration"
    },
    "thumbnail": {
      "roles": ["thumbnail"],
      "type": "image/png",
      "title": "Thumbnail"
    }
  },
  "stac_extensions": [
    "https://stac-extensions.github.io/version/v1.0.0/schema.json",
    "https://stac-extensions.github.io/processing/v1.0.0/schema.json",
    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json",
    "https://stac-extensions.github.io/eo/v1.0.0/schema.json"
  ],
  "providers": [
    {
      "processing:level": "L3",
      "roles": ["producer"],
      "name": "National Aeronautics and Space Administration (NASA)",
      "processing:lineage": "Generation of daily suspended particulate matter concentration estimatives based on a blend of two SPM algorithms using the MODIS-Aqua earth observation satellite.",
      "url": "https://oceancolor.gsfc.nasa.gov/"
    },
    {
      "processing:level": "L3",
      "roles": [
        "processor",
        "host"
      ],
      "processing:facility": "LOG",
      "name": "National Institute for Space Research (INPE)",
      "processing:lineage": "Generation of daily suspended particulate matter concentration estimatives based on a blend of two SPM algorithms using the MODIS-Aqua earth observation satellite.",
      "processing:software": {
        "OCSMART": "2.2",
        "SEADAS": "9.1.0",
        "SNAP": "10.0"
      },
      "url": "https://data.inpe.br/big/"
    },
    {
      "processing:level": "L3",
      "roles": ["processor"],
      "processing:facility": "LOG",
      "name": "Laboratoire d'Océanologie et de Géosciences",
      "processing:lineage": "Generation of daily suspended particulate matter concentration estimatives based on a blend of two SPM algorithms using the MODIS-Aqua earth observation satellite.",
      "processing:software": {
        "OCSMART": "2.2",
        "SEADAS": "9.1.0",
        "SNAP": "10.0"
      },
      "url": "https://log.cnrs.fr/recherche"
    }
  ],
  "properties": {
    "sources": [
      "http://www.inpe.br",
      "https://seadas.gsfc.nasa.gov/",
      "http://www.rtatmocn.com/oc-smart/",
      "Salah Salah et al., 2025 - Remote Sensing"
    ],
    "created": "2026-03-20T18:25:41.644068Z",
    "eo:bands": [{
      "resolution_y": 1,
      "min": 0,
      "resolution_x": 1,
      "max": 500,
      "name": "SPM",
      "data_type": "float64",
      "description": "Suspended Particulate Matter concentration",
      "scale": 1,
      "scale_add": null,
      "nodata": null,
      "common_name": "SPM"
    }],
    "updated": "2026-03-20T18:25:41.644075Z"
  },
  "summaries": {
    "instruments": ["modis"],
    "constellation": ["modis"],
    "platform": ["aqua"]
  }
}