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Pattern 4

Application Package Pattern 4¶

The CWL includes:

one input parameter of type Directory
two output parameters of type Directory

This scenario takes as input an acquisition, applies two algorithms and generates two outputs.

Implementation: process the NDVI and NDWI taking as input a Landsat-8/9 acquisition. The output include two STAC Catalogs, each with a single STAC Item

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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
`ndvi`	`Directory`	NDVI vegetation index	NDVI vegetation index
`ndwi`	`Directory`	NDWI vegetation index	NDWI vegetation index

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-4/aoi	area of interest as a bounding box - This parameter is derived from pattern-4/aoi
`epsg`	`string`	EPSG code - pattern-4/epsg	EPSG code - This parameter is derived from pattern-4/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-4/item	Landsat-8/9 acquisition reference - This parameter is derived from pattern-4/item
`s3_bucket`	`string`	my-super-stage-out/s3_bucket	This parameter is derived from: my-super-stage-out/s3_bucket
`sub_path`	`string`	my-super-stage-out/sub_path	This parameter is derived from: my-super-stage-out/sub_path
`aws_access_key_id`	`string`	my-super-stage-out/aws_access_key_id	This parameter is derived from: my-super-stage-out/aws_access_key_id
`aws_secret_access_key`	`string`	my-super-stage-out/aws_secret_access_key	This parameter is derived from: my-super-stage-out/aws_secret_access_key
`region_name`	`string`	my-super-stage-out/region_name	This parameter is derived from: my-super-stage-out/region_name
`endpoint_url`	`string`	my-super-stage-out/endpoint_url	This parameter is derived from: my-super-stage-out/endpoint_url

Steps¶

Id	Runs	Label	Doc
`directory_stage_in_0`	`#my-asthonishing-stage-in-directory`	None	None
`app`	`#pattern-4`	None	None
`stage_out_0`	`#my-super-stage-out`	None	None
`stage_out_1`	`#my-super-stage-out`	None	None

Outputs¶

Id	Type	Label	Doc
`ndvi`	`https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI`	NDVI vegetation index	NDVI vegetation index
`ndwi`	`https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI`	NDWI vegetation index	NDWI vegetation index

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¶

{
    "ndvi": {
        "value": "s3://my-bucket/my/sub/path-47pa1i/catalog.json",
        "type": "https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI"
    },
    "ndwi": {
        "value": "s3://my-bucket/my/sub/path-no9orv/catalog.json",
        "type": "https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI"
    }
}