| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.3390/rs9080815 |
| Validation of Automatically Generated Global and Regional Cropland Data Sets: The Case of Tanzania. | |
| Laso Bayas JC; See L; Perger C; Justice C; Nakalembe C; Dempewolf J; Fritz S | |
| 发表日期 | 2017 |
| 出处 | Remote Sensing 9 (8): e815 |
| 出版年 | 2017 |
| 语种 | 英语 |
| 摘要 | There is a need to validate existing global cropland maps since they are used for different purposes including agricultural monitoring and assessment. In this paper we validate three recent global products (ESA-CCI, GlobeLand30, FROM-GC) and one regional product (Tanzania Land Cover 2010 Scheme II) using a validation data set that was collected by students through the Geo-Wiki tool. The ultimate aim was to understand the usefulness of these products for agricultural monitoring. Data were collected wall-to-wall for Kilosa district and for a sample across Tanzania. The results show that the amount of and spatial extent of cropland in the different products differs considerably from 8% to 42% for Tanzania, with similar values for Kilosa district. The agreement of the validation data with the four different products varied between 36% and 54% and highlighted that cropland is overestimated by the ESA-CCI and underestimated by FROM-GC. The validation data were also analyzed for consistency between the student interpreters and also compared with a sample interpreted by five experts for quality assurance. Regarding consistency between the students, there was more than 80% agreement if one difference in cropland category was considered (e.g., between low and medium cropland) while most of the confusion with the experts was also within one category difference. In addition to the validation of current cropland products, the data set collected by the students also has potential value as a training set for improving future cropland products. |
| 主题 | Ecosystems Services and Management (ESM) |
| 关键词 | land cover validation cropland Geo-Wiki agricultural monitoring |
| URL | http://pure.iiasa.ac.at/id/eprint/14770/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/131006 |
| 推荐引用方式 GB/T 7714 | Laso Bayas JC,See L,Perger C,et al. Validation of Automatically Generated Global and Regional Cropland Data Sets: The Case of Tanzania.. 2017. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| remotesensing-09-008（8745KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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