environmentaltools.download.create_sentinel2_collection

environmentaltools.download.create_sentinel2_collection(study_area: ee.Geometry, start_date: str = '2015-01-01', end_date: str = '2024-01-01', cloud_percentage: float = 15.0) → ee.ImageCollection[source]

Create filtered Sentinel-2 image collection with vegetation indices.

Filters Sentinel-2 imagery based on spatial extent, date range, and cloud cover, then calculates vegetation indices for each image.

Parameters:

  • study_area (ee.Geometry) – Geographic area of interest.

  • start_date (str, optional) – Start date in ‘YYYY-MM-DD’ format. Defaults to “2015-01-01”.

  • end_date (str, optional) – End date in ‘YYYY-MM-DD’ format. Defaults to “2024-01-01”.

  • cloud_percentage (float, optional) – Maximum cloud cover percentage. Defaults to 15.0.

Returns:

Filtered collection with vegetation indices.

Return type:

ee.ImageCollection

Raises:

ValueError – If no images match the filtering criteria.

Example

>>> area = ee.Geometry.Point([-6.0, 36.8]).buffer(10000)
>>> collection = create_sentinel2_collection(area, "2020-01-01", "2020-12-31")