Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision

Land cover information plays a critical role in supporting sustainable development and informed decision-making. Recent advancements in satellite data accessibility, computing power, and satellite technologies have boosted large-extent high-resolution land cover mapping. However, retrieving a suffic...

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Main Authors: Gorica Bratic, Daniele Oxoli, Maria Antonia Brovelli
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/15/15/3774
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author Gorica Bratic
Daniele Oxoli
Maria Antonia Brovelli
author_facet Gorica Bratic
Daniele Oxoli
Maria Antonia Brovelli
author_sort Gorica Bratic
collection DOAJ
description Land cover information plays a critical role in supporting sustainable development and informed decision-making. Recent advancements in satellite data accessibility, computing power, and satellite technologies have boosted large-extent high-resolution land cover mapping. However, retrieving a sufficient amount of reliable training data for the production of such land cover maps is typically a demanding task, especially using modern deep learning classification techniques that require larger training sample sizes compared to traditional machine learning methods. In view of the above, this study developed a new benchmark dataset called the Map of Land Cover Agreement (MOLCA). MOLCA was created by integrating multiple existing high-resolution land cover datasets through a consensus-based approach. Covering Sub-Saharan Africa, the Amazon, and Siberia, this dataset encompasses approximately 117 billion 10m pixels across three macro-regions. The MOLCA legend aligns with most of the global high-resolution datasets and consists of nine distinct land cover classes. Noteworthy advantages of MOLCA include a higher number of pixels as well as coverage for typically underrepresented regions in terms of training data availability. With an estimated overall accuracy of 96%, MOLCA holds great potential as a valuable resource for the production of future high-resolution land cover maps.
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spelling doaj.art-282c21a7d4f94394ae1778eb8a80be122023-11-18T23:30:37ZengMDPI AGRemote Sensing2072-42922023-07-011515377410.3390/rs15153774Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data ProvisionGorica Bratic0Daniele Oxoli1Maria Antonia Brovelli2Department of Civil and Environmental Engineering, Politecnico di Milano, 20133 Milan, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, 20133 Milan, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, 20133 Milan, ItalyLand cover information plays a critical role in supporting sustainable development and informed decision-making. Recent advancements in satellite data accessibility, computing power, and satellite technologies have boosted large-extent high-resolution land cover mapping. However, retrieving a sufficient amount of reliable training data for the production of such land cover maps is typically a demanding task, especially using modern deep learning classification techniques that require larger training sample sizes compared to traditional machine learning methods. In view of the above, this study developed a new benchmark dataset called the Map of Land Cover Agreement (MOLCA). MOLCA was created by integrating multiple existing high-resolution land cover datasets through a consensus-based approach. Covering Sub-Saharan Africa, the Amazon, and Siberia, this dataset encompasses approximately 117 billion 10m pixels across three macro-regions. The MOLCA legend aligns with most of the global high-resolution datasets and consists of nine distinct land cover classes. Noteworthy advantages of MOLCA include a higher number of pixels as well as coverage for typically underrepresented regions in terms of training data availability. With an estimated overall accuracy of 96%, MOLCA holds great potential as a valuable resource for the production of future high-resolution land cover maps.https://www.mdpi.com/2072-4292/15/15/3774training datahigh-resolution land coverglobal land covermachine learningdeep learningsatellite image classification
spellingShingle Gorica Bratic
Daniele Oxoli
Maria Antonia Brovelli
Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision
Remote Sensing
training data
high-resolution land cover
global land cover
machine learning
deep learning
satellite image classification
title Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision
title_full Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision
title_fullStr Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision
title_full_unstemmed Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision
title_short Map of Land Cover Agreement: Ensambling Existing Datasets for Large-Scale Training Data Provision
title_sort map of land cover agreement ensambling existing datasets for large scale training data provision
topic training data
high-resolution land cover
global land cover
machine learning
deep learning
satellite image classification
url https://www.mdpi.com/2072-4292/15/15/3774
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