geetools.ImageCollectionAccessor.reduceInterval

geetools.ImageCollectionAccessor.reduceInterval(reducer='mean', unit='month', duration=1, qualityBand='')

Reduce the images included in the same duration interval using the provided reducer.

For example using unit as “month” and duration as 1, the ImageCollection will be reduced into a new ImageCollection with each image containing the reduced values for each month. Make sure the collection is filtered beforeend to reduce the number of images that needs to be processed.

Parameters:

• reducer (str) – The reducer to use. Default is “mean”. Available reducers: “mean”, “median”, “max”, “min”, “sum”, “stdDev”, “count”, “product”, “first”, “mosaic”, “qualityMosaic” or “last”.

• unit (str) – The unit of time to split the collection. Available units: ‘year’, ‘month’, ‘week’, ‘day’, ‘hour’, ‘minute’ or ‘second’.

• duration (int) – The duration of each split.

• qualityBand (str) – The band to use as quality band. Only available for “qualityMosaic” reducer.

Returns:

A new ImageCollection with the reduced images.

Return type:

ee.ImageCollection

Examples

import ee, geetools

ee.Initialize()

collection = (
    ee.ImageCollection("LANDSAT/LC08/C01/T1_TOA")
    .filterBounds(ee.Geometry.Point(-122.262, 37.8719))
    .filterDate("2014-01-01", "2014-12-31")
)

reduced = collection.geetools.reduceInterval("mean", "month", 1)
print(reduced.getInfo())