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What can be done with Sentinel-2 pixel based composites?
Free, full and open access to Sentinel-2 data enables the generation of pixel-based composites that can be used for a broad range of applications with a large spatial coverage such as land cover mapping with supervised or unsupervised classifications methods [5].
How many tiles are in the Sentinel 2?
For the processing of the 2019 data, a total of 3513 Sentinel-2 MGRS tiles (10’000 km² each) have been processed, each tile containing multiple observations (roughly every 3 to 5 days) in several spectral channels (6 spectral bands blue to short-wave infrared region). The data for the year 2020 covered 1415 tiles.
Where can I find the USGS Sentinel 2 collection?
EarthExplorer , USGS Global Visualization Viewer (GloVis), or the Sentinel2Look Viewer can be used to search, preview, and download Sentinel-2 data. The collection is located under the Sentinel category in EarthExplorer. The current USGS Sentinel-2 archive is only a partial representation of all available acquisitions from ESA.
Is the Sentinel 2 data available to the public?
All Sentinel-2 data products are provided free of charge to all data users, including the general public, and scientific and commercial users under the terms and conditions prescribed by the European Commission’s Copernicus Programme. Coverage Maps indicating the availability of Sentinel-2 products are available for download.
How to create Cloud shadow free Sentinel-2 composite?
Creating Sentinel-2 cloud free, cloud-shadow free composite or scene on Google Earth Engine (GEE)? Using this code, I am able to get a cloud-free composite, but it still includes shadows in my image.
Is there a global cloud free pixel based image composite?
The dataset presented in this paper corresponds to global cloud-free pixel based composite created from the Sentinel-2 data archive (Level L1C) available in Google Earth Engine for the period January 2017- December 2018.
How many QA bands are there in Sentinel 2?
Each Sentinel-2 product may contain multiple granules. The Sentinel-2 data contain 13 uint16 spectral bands representing TOA reflectance scaled by 10 000 [11]. In addition, three QA bands are present where one (QA60) is a bitmask band with cloud mask information.