environmentaltools.download.calculate_vegetation_indices

environmentaltools.download.calculate_vegetation_indices(image: ee.Image) → ee.Image[source]

Calculate vegetation and moisture indices for salt marsh analysis.

Computes three key indices from Sentinel-2 bands: - SAVI: Soil-Adjusted Vegetation Index (reduces soil background effects) - MSI: Moisture Stress Index (indicates plant water stress) - LSWI: Land Surface Water Index (detects surface water content)

Parameters:

image (ee.Image) – Sentinel-2 image with B4 (Red), B8 (NIR), and B11 (SWIR1) bands.

Returns:

Image with selected bands (B4, B8, B11) plus calculated: indices (SAVI, MSI, LSWI) and QA60 quality band.

Return type:

ee.Image

Note

SAVI uses L=0.5 for moderate vegetation coverage typical in salt marshes.

Example

>>> sentinel_image = ee.Image("COPERNICUS/S2_HARMONIZED/...")
>>> with_indices = calculate_vegetation_indices(sentinel_image)