Academic Journal
Detailed dynamic land cover mapping of Chile: Accuracy improvement by integrating multi-temporal data
| العنوان: | Detailed dynamic land cover mapping of Chile: Accuracy improvement by integrating multi-temporal data |
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| المؤلفون: | Zhao, Yuanyuan, Feng, Duole, Yu, Le, Wang, Xiaoyi, Chen, Yanlei, Bai, Yuqi, Hernández Palma, Héctor, Galleguillos Torres, Mauricio, Estades Marfán, Cristián, Biging, Gregory, Radke, John, Gong, Peng |
| المصدر: | Chile--Mapas |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2016 |
| المجموعة: | Universidad de Chile: Repositorio académico |
| مصطلحات موضوعية: | Cartografía--Chile--Percepción remota, Landsat |
| الوصف: | Stretching over 4300 km north to south, Chile is a special country with complicated landscapes and rich biodiversity. Accurate and timely updated land cover map of Chile in detailed classification categories is highly demanded for many applications. A conclusive land cover map integrated from multi-seasonal mapping results and a seasonal dynamic map series were produced using Landsat 8 imagery mainly acquired in 2013 and 2014, supplemented by MODIS Enhanced Vegetation Index data, high resolution imagery on Google Earth, and Shuttle Radar Topography Mission DEM data. The overall accuracy is 80% for the integrated map at level 1 and 73% for level 2 based on independent validation data. Accuracies for seasonal map series were also assessed, which is around 70% for each season, greatly improved by integrated use of seasonal information. The importance of growing season imagery was proved in our analysis. The analysis of the spatial variation of accuracies among various ecoregions indicates that the accuracy for land cover mapping decreases gradually from central Chile to both north and south. More mapping efforts for those ecoregions are needed. In addition, the training dataset includes sample points spatially distributed in the whole country, temporally distributed throughout the year, and categorically encompassing all land cover types. This training dataset constitutes a universal sample set allowing us to map land cover from any Landsat 8 image acquired in Chile without additional ad hoc training sample collection. (C) 2016 Elsevier Inc. All rights reserved ; project Development of advanced remote sensing methods for mapping and managing plant species diversity in Mediterranean Forest of Chile in UC Berkeley-Chile Seed Funds 77477 project Development of advanced remote sensing methods for mapping and managing plant species diversity in Mediterranean Forest of California in UC Berkeley-Chile Seed Funds 77477 Meteorological Public Benefit project of China GYHY201506010 |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | Remote Sensing of Environment 183 (2016) 170–185; https://repositorio.uchile.cl/handle/2250/142288 |
| DOI: | 10.1016/j.rse.2016.05.016 |
| الاتاحة: | https://doi.org/10.1016/j.rse.2016.05.016 https://repositorio.uchile.cl/handle/2250/142288 |
| Rights: | Attribution-NonCommercial-NoDerivs 3.0 Chile ; http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ |
| رقم الانضمام: | edsbas.A28649FF |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.rse.2016.05.016 |
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