Example (WIP), more details

radiantearth · Apr 22, 2021 · ee8022b · ee8022b
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diff --git a/catalog-spec/json-schema/catalog-core.json b/catalog-spec/json-schema/catalog-core.json
@@ -103,6 +103,7 @@
           {
             "title": "JSON Schema",
             "type": "object",
+            "minProperties": 1,
             "allOf": [
               {
                 "$ref": "http://json-schema.org/draft-07/schema"

diff --git a/collection-spec/collection-spec.md b/collection-spec/collection-spec.md
@@ -300,9 +300,10 @@ Implementors are free to add other derived statistical values to the object, for
 
 For a full understanding of the summarized field, a JSON Schema can be added for each summarized field.
 This allows very fine-grained information for each field and each value as JSON Schema is also extensible.
+Each schema must be valid against all corresponding values available for the property in the sub-Items.
 
 It is recommended to use [JSON Schema draft-07](https://json-schema.org/specification-links.html#draft-7)
-to align with the JSON Schemas provided by STAC.
+to align with the JSON Schemas provided by STAC. Empty schemas are not allowed.
 
 ## Media Type for STAC Collections
 

diff --git a/examples/collection-only/collection-with-schemas.json b/examples/collection-only/collection-with-schemas.json
@@ -0,0 +1,281 @@
+{
+  "stac_version": "1.0.0-rc.2",
+  "stac_extensions": [
+    "https://stac-extensions.github.io/eo/v1.0.0/schema.json",
+    "https://stac-extensions.github.io/sat/v1.0.0/schema.json",
+    "https://stac-extensions.github.io/view/v1.0.0/schema.json"
+  ],
+  "id": "S2",
+  "type": "Collection",
+  "title": "Level 1C Sentinel-2 images",
+  "description": "The SENTINEL-2 mission is a land monitoring constellation of two satellites each equipped with a MSI (Multispectral Imager) instrument covering 13 spectral bands providing high resolution optical imagery (i.e., 10m, 20m, 60 m) every 10 days with one satellite and 5 days with two satellites",
+  "license": "proprietary",
+  "extent": {
+    "spatial": {
+      "bbox": [
+        [
+          -180,
+          -82.852377834669,
+          180,
+          82.819463367711
+        ]
+      ]
+    },
+    "temporal": {
+      "interval": [
+        [
+          "2017-04-12T02:57:21.459000Z",
+          "2021-04-22T11:30:12.767000Z"
+        ]
+      ]
+    }
+  },
+  "links": [
+    {
+      "rel": "self",
+      "type": "application/json",
+      "href": "https://tamn.snapplanet.io/collections/S2"
+    },
+    {
+      "rel": "root",
+      "type": "application/json",
+      "href": "https://tamn.snapplanet.io"
+    },
+    {
+      "rel": "license",
+      "href": "https://scihub.copernicus.eu/twiki/pub/SciHubWebPortal/TermsConditions/Sentinel_Data_Terms_and_Conditions.pdf",
+      "title": "Legal notice on the use of Copernicus Sentinel Data and Service Information"
+    }
+  ],
+  "providers": [
+    {
+      "name": "European Union/ESA/Copernicus",
+      "roles": [
+        "producer",
+        "licensor"
+      ],
+      "url": "https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi"
+    },
+    {
+      "name": "AWS",
+      "roles": [
+        "host"
+      ],
+      "url": "https://registry.opendata.aws/sentinel-2/"
+    },
+    {
+      "name": "jeobrowser",
+      "roles": [
+        "processor"
+      ],
+      "url": "https://github.com/jjrom/resto"
+    }
+  ],
+  "summaries": {
+    "datetime": {
+      "minimum": "2017-04-12T02:57:21.459000Z",
+      "maximum": "2021-04-22T11:30:12.767000Z"
+    },
+    "collection": {
+      "type": "string",
+      "const": "sentinel-2",
+      "title": "Sentinel 2",
+      "count": 6613407
+    },
+    "instruments": {
+      "type": "string",
+      "const": "msi",
+      "title": "MSI",
+      "count": 6613431
+    },
+    "landcover": {
+      "type": "string",
+      "oneOf": [
+        {
+          "const": "landcover:cultivated",
+          "title": "Cultivated",
+          "count": 490750
+        },
+        {
+          "const": "landcover:desert",
+          "title": "Desert",
+          "count": 543120
+        },
+        {
+          "const": "landcover:flooded",
+          "title": "Flooded",
+          "count": 5187
+        },
+        {
+          "const": "landcover:forest",
+          "title": "Forest",
+          "count": 767807
+        },
+        {
+          "const": "landcover:herbaceous",
+          "title": "Herbaceous",
+          "count": 674281
+        },
+        {
+          "const": "landcover:ice",
+          "title": "Ice",
+          "count": 231285
+        },
+        {
+          "const": "landcover:urban",
+          "title": "Urban",
+          "count": 1219
+        },
+        {
+          "const": "landcover:water",
+          "title": "Water",
+          "count": 2303314
+        }
+      ]
+    },
+    "location": {
+      "type": "string",
+      "oneOf": [
+        {
+          "const": "tropical",
+          "title": "Tropical",
+          "count": 1807474
+        },
+        {
+          "const": "southern",
+          "title": "Southern",
+          "count": 1671685
+        },
+        {
+          "const": "northern",
+          "title": "Northern",
+          "count": 4876669
+        },
+        {
+          "const": "equatorial",
+          "title": "Equatorial",
+          "count": 27302
+        },
+        {
+          "const": "coastal",
+          "title": "Coastal",
+          "count": 1495516
+        }
+      ]
+    },
+    "platform": {
+      "type": "string",
+      "oneOf": [
+        {
+          "const": "sentinel-2b",
+          "title": "Sentinel 2B",
+          "count": 3495597
+        },
+        {
+          "const": "sentinel-2a",
+          "title": "Sentinel 2A",
+          "count": 3117831
+        }
+      ]
+    },
+    "season": {
+      "type": "integer",
+      "oneOf": [
+        {
+          "const": 0,
+          "title": "Winter",
+          "count": 1621108
+        },
+        {
+          "const": 2,
+          "title": "Summer",
+          "count": 2279472
+        },
+        {
+          "const": 1,
+          "title": "Spring",
+          "count": 1577067
+        },
+        {
+          "const": 3,
+          "title": "Autumn",
+          "count": 1098015
+        }
+      ]
+    },
+    "eo:bands": [
+      {
+        "title": "B1",
+        "common_name": "coastal",
+        "center_wavelength": 4.439,
+        "gsd": 60
+      },
+      {
+        "title": "B2",
+        "common_name": "blue",
+        "center_wavelength": 4.966,
+        "gsd": 10
+      },
+      {
+        "title": "B3",
+        "common_name": "green",
+        "center_wavelength": 5.6,
+        "gsd": 10
+      },
+      {
+        "title": "B4",
+        "common_name": "red",
+        "center_wavelength": 6.645,
+        "gsd": 10
+      },
+      {
+        "title": "B5",
+        "center_wavelength": 7.039,
+        "gsd": 20
+      },
+      {
+        "title": "B6",
+        "center_wavelength": 7.402,
+        "gsd": 20
+      },
+      {
+        "title": "B7",
+        "center_wavelength": 7.825,
+        "gsd": 20
+      },
+      {
+        "title": "B8",
+        "common_name": "nir",
+        "center_wavelength": 8.351,
+        "gsd": 10
+      },
+      {
+        "title": "B8A",
+        "center_wavelength": 8.648,
+        "gsd": 20
+      },
+      {
+        "title": "B9",
+        "center_wavelength": 9.45,
+        "gsd": 60
+      },
+      {
+        "title": "B10",
+        "center_wavelength": 1.3735,
+        "gsd": 60
+      },
+      {
+        "title": "B11",
+        "common_name": "swir16",
+        "center_wavelength": 1.6137,
+        "gsd": 20
+      },
+      {
+        "title": "B12",
+        "common_name": "swir22",
+        "center_wavelength": 2.2024,
+        "gsd": 20
+      }
+    ]
+  }
+}