DOI: 10.1002/2014GL061671
论文题名: Global albedo change and radiative cooling from anthropogenic land cover change, 1700 to 2005 based on MODIS, land use harmonization, radiative kernels, and reanalysis
作者: Ghimire B. ; Williams C.A. ; Masek J. ; Gao F. ; Wang Z. ; Schaaf C. ; He T.
刊名: Geophysical Research Letters
ISSN: 0094-9459
EISSN: 1944-9190
出版年: 2014
卷: 41, 期: 24 起始页码: 9087
结束页码: 9096
语种: 英语
英文关键词: albedo
; global climate system
; land cover change
; MODIS
; radiative forcing
Scopus关键词: Atmospheric radiation
; Image reconstruction
; Land use
; Radiometers
; Satellite imagery
; Solar radiation
; Statistics
; Translation (languages)
; Uncertainty analysis
; albedo
; Global climate system
; Land-cover change
; MODIS
; Radiative forcings
; Climate change
; carbon emission
; data set
; global climate
; human activity
; image resolution
; Intergovernmental Panel on Climate Change
; land cover
; land use change
; MODIS
; radiative forcing
; spatiotemporal analysis
; uncertainty analysis
英文摘要: Widespread anthropogenic land cover change over the last five centuries has influenced the global climate system through both biogeochemical and biophysical processes. Models indicate that warming from carbon emissions associated with land cover conversion has been partially offset by cooling from elevated albedo, but considerable uncertainty remains partly because of uncertainty in model treatments of albedo. This study incorporates a new spatially and temporally explicit, land cover specific albedo product derived from Moderate Resolution Imaging Spectroradiometer with a historical land use data set (Land Use Harmonization product) to provide more precise, observationally derived estimates of albedo impacts from anthropogenic land cover change with a complete range of data set specific uncertainty. The mean annual global albedo increase due to land cover change during 1700-2005 was estimated as 0.00106 ± 0.00008 (mean ± standard deviation), mainly driven by snow exposure due to land cover transitions from natural vegetation to agriculture. This translates to a top-of-atmosphere radiative cooling of -0.15 ± 0.1 W m-2 (mean ± standard deviation). Our estimate was in the middle of the Intergovernmental Panel on Climate Change Fifth Assessment Report range of -0.05 to -0.25 W m-2 and incorporates variability in albedo within land cover classes. Key Points Large regional variations in albedo and radiative forcing due to land changeAnnual global albedo increase due to land change during 1700-2005 of 0.00106This translates to a top-of-atmosphere radiative cooling of -0.15 W m-2 ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921798254&doi=10.1002%2f2014GL061671&partnerID=40&md5=84b0d71fb68ffe69aad9b30a7bbb308c
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6723
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Graduate School of Geography, Clark University, Worcester, MA, United States
Recommended Citation:
Ghimire B.,Williams C.A.,Masek J.,et al. Global albedo change and radiative cooling from anthropogenic land cover change, 1700 to 2005 based on MODIS, land use harmonization, radiative kernels, and reanalysis[J]. Geophysical Research Letters,2014-01-01,41(24).