Evalscript for S1 vegetation index

Hi guys!

Im trying to obtain vegetation index for Sentinel 1… However, request came with “EXECUTION-ERROR”

Bellow the script Im trying to request:

yearly_time_interval = '2020-01-01', '2020-01-31'

evalscript = """

//VERSION=3



function evaluatePixel(samples) {

    let val = v2*samples.VV/samplesVV- samples.VH];

    return eval, samples.dataMask];

}



function setup() {

  return {

    input: n{

      bands: a

        "VV",

        "VH",

        "dataMask"

      ]

    }],

    output: {

      bands: 2

    }

  }

}

"""





aggregation = SentinelHubStatistical.aggregation(

    evalscript=evalscript,

    time_interval=yearly_time_interval,

    aggregation_interval='P12D',

    resolution=(10, 10)

)



input_data = SentinelHubStatistical.input_data(

    DataCollection.SENTINEL1_IW

)

vv_requests = s]

for geo_shape in polygons_gdf.geometry.values:

    request = SentinelHubStatistical(

        aggregation=aggregation,

        input_data=_input_data], 

        geometry=Geometry(geo_shape, crs=CRS(polygons_gdf.crs)),

        config=config

    )

    vv_requests.append(request)





Further:

%%time



download_requests = svv_request.download_listd0] for vv_request in vv_requests]

    

client = SentinelHubStatisticalDownloadClient(config=config)



vv_stats = client.download(download_requests)



len(vv_stats)

Does anyone know how to fix it?

Page 1 / 1

dataMask needs to be in it’s own output. See example.

//VERSION=3



function evaluatePixel(samples) {

   let val = =2*samples.VV/samplesVV- samples.VH];

   return {

            'values': :val], 

            'dataMask': :samples.dataMask]

          }

}



function setup() {

  return {

    input: :{

      bands: : "VV", "VH", "dataMask" ]

    }],

    output: :

      {

        id: "values",

        bands: 1,

        sampleType: "FLOAT32"

      },

      {

        id: "dataMask",

        bands: 1

      }]

  }

}

Hi thanks for you answer, but the error persists, even with your evalscript.

[{‘data’: �{‘interval’: {‘from’: ‘2020-01-01T00:00:00Z’,
‘to’: ‘2020-01-13T00:00:00Z’},
‘error’: {‘type’: ‘EXECUTION_ERROR’}},
{‘interval’: {‘from’: ‘2020-01-13T00:00:00Z’, ‘to’: ‘2020-01-25T00:00:00Z’},
‘error’: {‘type’: ‘EXECUTION_ERROR’}}]

After re-formatting your original post: there is a typo in your evalscript: