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Pattern 5

Application Package Pattern 5¶

The CWL includes:

one input parameter of type Directory
scatter on an output parameter of type Directory[]

This scenario takes as input an acquisition, applies an algorithm and generates several outputs

Implementation: process the NDVI and NDWI taking as input a Landsat-8/9 acquisition and generating a stack of STAC Catalogs

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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
`indexes`	`string[]`	indexes	indexes to compute
`item`	`Directory`	Landsat-8/9 acquisition reference	Landsat-8/9 acquisition reference

Steps¶

Id	Runs	Label	Doc
`step`	`#clt`	Compute vegetation indexes	Compute NDVI and NDWI vegetation indexes from the Landsat-8/9 acquisition

Outputs¶

Id	Type	Label	Doc
`vegetation_indexes`	`Directory[]`	Vegetation indexes	Vegetation indexes from Landsat-8/9 acquisitions

Data flow management¶

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Workflow sequence diagram¶

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Inputs¶

Id	Type	Label	Doc
`aoi`	`string`	area of interest - pattern-5/aoi	area of interest as a bounding box - This parameter is derived from pattern-5/aoi
`epsg`	`string`	EPSG code - pattern-5/epsg	EPSG code - This parameter is derived from pattern-5/epsg
`indexes`	`string[]`	indexes - pattern-5/indexes	indexes to compute - This parameter is derived from pattern-5/indexes
`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-5/item	Landsat-8/9 acquisition reference - This parameter is derived from pattern-5/item
`s3_bucket`	`string`	S3 Bucket name - my-super-stage-out/s3_bucket	The name of the S3 bucket to stage out to - This parameter is derived from my-super-stage-out/s3_bucket
`sub_path`	`string`	Sub-path in S3 bucket - my-super-stage-out/sub_path	The sub-path within the S3 bucket to stage out to - This parameter is derived from my-super-stage-out/sub_path
`aws_access_key_id`	`string`	AWS Access Key ID - my-super-stage-out/aws_access_key_id	The AWS Access Key ID - This parameter is derived from my-super-stage-out/aws_access_key_id
`aws_secret_access_key`	`string`	AWS Secret Access Key - my-super-stage-out/aws_secret_access_key	The AWS Secret Access Key - This parameter is derived from my-super-stage-out/aws_secret_access_key
`region_name`	`string`	AWS Region Name - my-super-stage-out/region_name	The AWS Region Name - This parameter is derived from my-super-stage-out/region_name
`endpoint_url`	`string`	AWS Endpoint URL - my-super-stage-out/endpoint_url	The AWS 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-5`	None	None
`stage_out_0`	`#my-super-stage-out`	None	None

Outputs¶

Id	Type	Label	Doc
`vegetation_indexes`	`https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI[]`	Vegetation indexes	Vegetation indexes from Landsat-8/9 acquisitions

Execution¶

Inputs¶

{
  "aoi": "-118.985,38.432,-118.183,38.938",
  "epsg": "EPSG:4326",
  "indexes": [
    "ndvi",
    "ndwi"
  ],
  "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"
  },
  "another_input": "some_value",
  "s3_bucket": "my-bucket",
  "sub_path": "my/sub/path",
  "aws_access_key_id": "test",
  "aws_secret_access_key": "test",
  "region_name": "us-west-1",
  "endpoint_url": "https://s3.us-west-1.amazonaws.com"
}

Outputs¶

{
    "vegetation_indexes": [
        {
            "value": "s3://my-bucket/my/sub/path-wltwex/catalog.json",
            "type": "https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI"
        },
        {
            "value": "s3://my-bucket/my/sub/path-mjfd2k/catalog.json",
            "type": "https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI"
        }
    ]
}