气候变化领域集成服务门户(CCPortal): Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations

CCPortal

DOI	10.3390/rs13091714
	Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations
	Ren, Shaoting; Miles, Evan S.; Jia, Li; Menenti, Massimo; Kneib, Marin; Buri, Pascal; McCarthy, Michael J.; Shaw, Thomas E.; Yang, Wei; Pellicciotti, Francesca
通讯作者	Jia, L (通讯作者)
发表日期	2021
EISSN	2072-4292
卷号	13 期号:9
英文摘要	Glacier albedo determines the net shortwave radiation absorbed at the glacier surface and plays a crucial role in glacier energy and mass balance. Remote sensing techniques are efficient means to retrieve glacier surface albedo over large and inaccessible areas and to study its variability. However, corrections of anisotropic reflectance of glacier surface have been established for specific shortwave bands only, such as Landsat 5 Thematic Mapper (L5/TM) band 2 and band 4, which is a major limitation of current retrievals of glacier broadband albedo. In this study, we calibrated and evaluated four anisotropy correction models for glacier snow and ice, applicable to visible, near-infrared and shortwave-infrared wavelengths using airborne datasets of Bidirectional Reflectance Distribution Function (BRDF). We then tested the ability of the best-performing anisotropy correction model, referred to from here on as the 'updated model', to retrieve albedo from L5/TM, Landsat 8 Operational Land Imager (L8/OLI) and Moderate Resolution Imaging Spectroradiometer (MODIS) imagery, and evaluated these results with field measurements collected on eight glaciers around the world. Our results show that the updated model: (1) can accurately estimate anisotropic factors of reflectance for snow and ice surfaces; (2) generally performs better than prior approaches for L8/OLI albedo retrieval but is not appropriate for L5/TM; (3) generally retrieves MODIS albedo better than the MODIS standard albedo product (MCD43A3) in both absolute values and glacier albedo temporal evolution, i.e., exhibiting both fewer gaps and better agreement with field observations. As the updated model enables anisotropy correction of a maximum of 10 multispectral bands and is implemented in Google Earth Engine (GEE), it is promising for observing and analyzing glacier albedo at large spatial scales.
关键词	SNOW BIDIRECTIONAL REFLECTANCE REMOTE-SENSING DATA TM BANDS 2 MASS-BALANCE OPTICAL-PROPERTIES TIBETAN PLATEAU MODIS DATA ICE BRDF AIRBORNE
英文关键词	glacier surface albedo; anisotropy correction; albedo retrieval; remote sensing
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000650742600001
来源期刊	REMOTE SENSING
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260519
推荐引用方式 GB/T 7714	Ren, Shaoting,Miles, Evan S.,Jia, Li,et al. Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations[J]. 中国科学院青藏高原研究所,2021,13(9).
APA	Ren, Shaoting.,Miles, Evan S..,Jia, Li.,Menenti, Massimo.,Kneib, Marin.,...&Pellicciotti, Francesca.(2021).Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations.REMOTE SENSING,13(9).
MLA	Ren, Shaoting,et al."Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations".REMOTE SENSING 13.9(2021).