Surface water, vegetation, and fire as drivers of the terrestrial Arctic-boreal albedo feedback
Bibliographic Data
| ID | 15544746 |
|---|---|
| Authors | Elizabeth E Webb (0000-0001-5398-4478, University of Florida, corresponding author), M M Loranty (0000-0001-8851-7386, Colgate University), Jeremy W Lichstein (0000-0001-5553-6142, University of Florida) |
| Year | 2021 |
| Volume | 16 |
| Issue | 8 |
| Pages | 084046-084046 |
| Publication date | 2021-07-15 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/ac14ea |
| OpenAlex | W3186472598 |
| Language | EN |
| Citations received | 2 |
| References cited | 65 |
The Arctic is warming twice as fast as the global average, due in part to the albedo feedbacks of a diminishing cryosphere. As snow cover extent decreases, the underlying land is exposed, which has lower albedo and therefore absorbs more radiation, warming the surface and causing a positive feedback to climate change. Changes in terrestrial snow-free albedo (e.g. changes in vegetation or surface water) could also affect Earth’s energy balance, but their importance for contemporary climate change is relatively unknown. Here we show that changes in surface water are significantly altering Artic-boreal albedo, and explain up to 27% of the spatial variation in monthly albedo change from 2000 to 2019. The increase in radiative forcing due to changes in surface water extent is most pronounced in the continuous permafrost zone, contributing to a positive feedback between permafrost thaw and climate change. Additionally, we show that fire history and changes in tree cover and surface water extent together account for at least 15% of albedo-induced radiative forcing over the study period, indicating that these processes are a regionally important aspect of the climate-albedo feedback
Albedo (alchemy · Antarctic sea ice · Arctic · Atmospheric sciences · Boreal · Climate change · Climate model · Climatology · Cryosphere · Earth's energy budget · Forcing (mathematics · Geography · Ice-albedo feedback · Meteorology · Permafrost · Radiative forcing · Sea ice · Snow · Vegetation (pathology · Climate change and permafrost · Cryospheric studies and observations · Environmental Science · Geology and Paleoclimatology Research · Geology · Oceanography
Disappearing Arctic Lakes
Offset of the potential carbon sink from boreal forestation by decreases in surface albedo
The evidence for shrub expansion in Northern Alaska and the Pan‐Arctic
Role of Land-Surface Changes in Arctic Summer Warming
Global land change from 1982 to 2016
High-Resolution Global Maps of 21st-Century Forest Cover Change
Contemporary (1951–2001) Evolution of Lakes in the Old Crow Basin, Northern Yukon, Canada
Consequences of changes in vegetation and snow cover for climate feedbacks in Alaska and northwest Canada
Surface forcing of non-stand-replacing fires in Siberian larch forests
| Citations per year | 0.4 |
|---|---|
| Citation span | 2021 - 2022 (2) |
| Highly cited | No |