Pan-tropical Sentinel-2 cloud-free annual composite datasets

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Simonetti D., Pimple U., Langner A., Marelli A.

ผู้เผยแพร่: Elsevier

ปีที่เผยแพร่ (ค.ศ.): 2021

วารสาร: Data in Brief (2352-3409)

Volume number: 39

นอก: 2352-3409

eISSN: 2352-3409

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117567467&doi=10.1016%2fj.dib.2021.107488&partnerID=40&md5=2c4f52bfb9b54454a4446a67721e98ed

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

Sentinel-2 MSI is one of the core missions of the Copernicus Earth Observation programme of the European Union. This mission shows great potential to map the regional high-resolution spatio-temporal dynamics of land use and land cover. In tropical regions, despite the high revisiting time of 5 days including both Sentinel-2A and 2B satellites, the frequent presence of clouds, cloud-shadows, haze and other atmospheric contaminants are precluding the visibility of the Earth surface up to several months. In this paper we present four annual pan-tropical cloud-free composites computed and exported from Google Earth Engine (GEE) by making use of available Sentinel-2 L1C collection for the period spanning from 2015 to 2020. We furthermore propose empirical approaches to reduce the BRDF effect over tropical forest areas by showing pros and cons of image-based versus swath-based methodologies. Additionally, we provide a dedicated web-platform offering a fast and intuitive way to browse and explore the proposed annual composites as well as layers of potential annual changes as a ready-to-use means to visually identify and verify degradation and deforestation activities as well as other land cover changes. © 2021

คำสำคัญ

annual change, BRDF correction, cloud free composite, cloud mask, Copernicus Sentinel-2, pixel-based classification