Radiative forcing reduced by early twenty-first century increase in land albedo

Hou, Zhengyang; Zhang, Liqiang; Peng, Jingjing; Forzieri, Giovanni; Jia, Aolin; Xiao, Zhiqiang; Qu, Ying; Lin, Jintai; Ji, Duoying; Zhu, Zidong; Yao, Xin; Peng, Shuwen; Zhao, Lanpu; Fan, Wenjie; Wu, Zhaocong; Geng, Hao; Wang, Qihao; Zhou, Chenghu; Liu, Suhong; Zhang, Liangpei

doi:10.1038/s41586-025-08987-z

i

Radiative forcing reduced by early twenty-first century increase in land albedo

2025
By Hou, Zhengyang ; Zhang, Liqiang ; Peng, Jingjing ; ...

Select the Download button to view the document

Please click the download button to view the document.

Details

Journal Title:

Nature
Personal Author:

Hou, Zhengyang ; Zhang, Liqiang ; Peng, Jingjing ; Forzieri, Giovanni ; Jia, Aolin ; Xiao, Zhiqiang ; Qu, Ying ; Lin, Jintai ; Ji, Duoying ; Zhu, Zidong ; Yao, Xin ; Peng, Shuwen ; Zhao, Lanpu ; Fan, Wenjie ; Wu, Zhaocong ; Geng, Hao ; Wang, Qihao ; Zhou, Chenghu ; Liu, Suhong ; Zhang, Liangpei
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; CISESS (Cooperative Institute for Satellite Earth System Studies)
Description:

Surface albedo greatly affects how much energy the Earth absorbs. Intensive human activities and accelerated climate change have altered surface albedo across spatial and temporal scales1,2,3, yet assessments of the effects of land use or land cover (LULC) and snow variations on land surface albedo are scarce at the global scale. As a result, the global land surface albedo dynamics over recent decades and their corresponding radiative forcing to the climate system remain poorly understood4,5,6,7,8,9. Here we quantify the individual and combined effects of snow cover dynamics, LULC conversions and non-conversion regions on albedo variations during 2001–2020 and estimate their induced radiative forcing. We show that the negative radiative forcing induced by the global land surface albedo change was −0.142 (−0.158, −0.114) W m−2 over the past two decades. The global snow-free land surface albedo increased by 2.2% (P < 0.001), with a negative radiative forcing of −0.164 (−0.186, −0.138) W m−2 (P < 0.001). The magnitude of this negative forcing is sevenfold larger than the positive forcing induced by snow dynamics, and equivalent to 59.9% of that caused by CO2 emissions from 2011 to 201910. The global radiative forcing due to albedo changes in LULC non-conversion regions is 3.9 to 8.1 times greater than that from LULC conversions. The radiative forcing induced by albedo changes highlights the important role of land surface dynamics in modulating global warming.
Source:

Nature, 641(8065), 1162-1171
DOI:

https://doi.org/10.1038/s41586-025-08987-z
ISSN:

0028-0836 ; 1476-4687
Format:

pdf
Publisher:

Springer Science and Business Media LLC
Document Type:

Journal Article
Funding:

Grant no. NA19NES4320002
Rights Information:

Accepted Manuscript
Compliance:

Submitted
Main Document Checksum:

urn:sha-512:a1cc227f4c81b9e5307f6b048be5146ff75f624ffc269acda4644d3b290be5f1e26d36a316b6ffd7a2abbd620a61afcf93c9352f21f85959d567a8bf20cbeca4
Download URL:

https://repository.library.noaa.gov/view/noaa/72171/noaa_72171_DS1.pdf
File Type:

[PDF - 28.95 MB ]

ON THIS PAGE

Details

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.