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Pattern 6

Application Package Pattern 6¶

The CWL includes:

one input parameter of type Directory
there are no output parameters of type Directory

This scenario takes as input an acquisition, applies an algorithm and generates an output that is not a STAC Catalog

Implementation: derive the NDVI mean taking as input a Landsat-8/9 acquisition

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Inputs¶

Id	Type	Label	Doc
`aoi`	`string`	area of interest	area of interest as a bounding box
`epsg`	`string`	EPSG code	EPSG code
`item`	`Directory`	Landsat-8/9 acquisition reference	Landsat-8/9 acquisition reference

Steps¶

Id	Runs	Label	Doc
`step`	`#clt`	None	None

Outputs¶

Id	Type	Label	Doc
`mean`	`float`	Vegetation index mean	Vegetation index mean

Data flow management¶

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Workflow components diagram¶

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Inputs¶

Id	Type	Label	Doc
`aoi`	`string`	area of interest - pattern-6/aoi	area of interest as a bounding box - This parameter is derived from pattern-6/aoi
`epsg`	`string`	EPSG code - pattern-6/epsg	EPSG code - This parameter is derived from pattern-6/epsg
`another_input`	`string`	Another Input - my-asthonishing-stage-in-directory/another_input	An additional input for demonstration purposes - This parameter is derived from my-asthonishing-stage-in-directory/another_input
`item`	`https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI`	Landsat-8/9 acquisition reference - pattern-6/item	Landsat-8/9 acquisition reference - This parameter is derived from pattern-6/item

Steps¶

Id	Runs	Label	Doc
`directory_stage_in_0`	`#my-asthonishing-stage-in-directory`	None	None
`app`	`#pattern-6`	None	None

Outputs¶

Id	Type	Label	Doc
`mean`	`float`	Vegetation index mean - app/mean	Vegetation index mean - This output is derived from app/mean

Execution¶

Inputs¶

{
  "aoi": "-118.985,38.432,-118.183,38.938",
  "epsg": "EPSG:4326",
  "item": {
    "class": "https://raw.githubusercontent.com/eoap/schemas/main/url.yaml#URL",
    "value": "https://planetarycomputer.microsoft.com/api/stac/v1/collections/landsat-c2-l2/items/LC08_L2SP_042033_20231007_02_T1"
  }
}

Outputs¶

{
    "mean": 0.07260978
}