Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/17538947.2017.1341559 |
A disaggregation approach for estimating high spatial resolution broadband emissivity for bare soils from Landsat surface reflectance | |
Cheng, Jie1; Liang, Shunlin1,2; Liu, Hao1; Nie, Aixiu3; Liu, Qiang3 | |
通讯作者 | Cheng, Jie |
来源期刊 | INTERNATIONAL JOURNAL OF DIGITAL EARTH |
ISSN | 1753-8947 |
EISSN | 1753-8955 |
出版年 | 2018 |
卷号 | 11期号:7页码:691-702 |
英文摘要 | High spatial resolution land surface broadband emissivity (BBE) is not only useful for surface energy balance studies at local scales, but also can bridge the gap between existing coarser resolution BBE products and point-based field measurements. This study proposes a disaggregation approach that utilizes the established BBE-reflectance relationship for estimating high spatial resolution BBE for bare soils from Landsat surface reflectance data. The disaggregated BBE is compared to the BBE calculated from spatial-temporal matched Advanced Spaceborne Thermal Emission and Reflectance Radiometer emissivity product. Comparison results show that better agreement is achieved over relative homogeneous areas, but deteriorated over heterogeneous and cloud-contaminated areas. In addition, field-measured emissivity data over large homogeneous desert were also used to validate the disaggregated BBE, and the bias is 0.005. The comparison and validation results indicated that the disaggregation approach can obtain high spatial resolution BBE with better accuracy for homogeneous area. |
英文关键词 | Broadband emissivity ASTER TM bare soil disaggregation |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000432899200003 |
WOS关键词 | SPACEBORNE THERMAL EMISSION ; DIFFERENCE VEGETATION INDEX ; RADIOMETER ASTER ; SEPARATION ALGORITHM ; SATELLITE IMAGERY ; MODIS PRODUCTS ; ENERGY FLUXES ; NET-RADIATION ; TEMPERATURE ; RETRIEVAL |
WOS类目 | Geography, Physical ; Remote Sensing |
WOS研究方向 | Physical Geography ; Remote Sensing |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210177 |
作者单位 | 1.Beijing Normal Univ, Fac Geog, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China; 2.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA; 3.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Remote Sensing Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Cheng, Jie,Liang, Shunlin,Liu, Hao,et al. A disaggregation approach for estimating high spatial resolution broadband emissivity for bare soils from Landsat surface reflectance[J]. 北京师范大学,2018,11(7):691-702. |
APA | Cheng, Jie,Liang, Shunlin,Liu, Hao,Nie, Aixiu,&Liu, Qiang.(2018).A disaggregation approach for estimating high spatial resolution broadband emissivity for bare soils from Landsat surface reflectance.INTERNATIONAL JOURNAL OF DIGITAL EARTH,11(7),691-702. |
MLA | Cheng, Jie,et al."A disaggregation approach for estimating high spatial resolution broadband emissivity for bare soils from Landsat surface reflectance".INTERNATIONAL JOURNAL OF DIGITAL EARTH 11.7(2018):691-702. |
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