A Method to Estimate Clear-Sky Albedo of Paddy Rice Fields
文献类型：期刊论文
| 作者 | Sun, Tao ; Chen, Liding; Sun, Ranhao
|
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022 |
| 卷号 | 14期号:20页码:5185-1-13 |
| 关键词 | surface albedo paddy rice agricultural ecosystem GHG |
| 英文摘要 | As a major crop type in the global agroecosystem, paddy rice fields contribute to global greenhouse gas emissions. Surface albedo plays a vital role in estimating carbon emissions. However, it is difficult to find a broadband albedo estimation over paddy rice fields. The objective of this study was to derive an applicable method to improve albedo estimation over a paddy rice field. Field multiangle reflectance and surface albedo were collected throughout the growing season. A physically based model (AMBRALS) was utilized to reconstruct the directional reflectance into the spectral albedo. Multiple spectral albedos (at the wavelengths of 470, 550, 660, 850, 1243, 1640 and 2151 nm) were calculated, and new narrowband to broadband conversion coefficients were derived between the observed spectral albedo and broadband albedo. The conversion schemes showed high consistency with the field albedo observations in the shortwave (285-3000 nm), infrared (700-3000 nm), and visible (400-700 nm) bands. This method can help improve albedo estimation in partially submerged environments. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48384]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Academy of Sciences 2.University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Sun, Tao,Chen, Liding,Sun, Ranhao. A Method to Estimate Clear-Sky Albedo of Paddy Rice Fields[J]. REMOTE SENSING,2022,14(20):5185-1-13. |
| APA | Sun, Tao,Chen, Liding,&Sun, Ranhao.(2022).A Method to Estimate Clear-Sky Albedo of Paddy Rice Fields.REMOTE SENSING,14(20),5185-1-13. |
| MLA | Sun, Tao,et al."A Method to Estimate Clear-Sky Albedo of Paddy Rice Fields".REMOTE SENSING 14.20(2022):5185-1-13. |
入库方式： OAI收割
来源：生态环境研究中心
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