Where Snow and Forest Meet: A Global Atlas

Abstract The complex interactions between snow cover and forests have implications for ecosystems, water resources and the Earth's climate. However, the geographic distribution of where snow and forest overlap remains poorly known. Here, we evaluate the importance of snowfall over forested envi...

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Main Authors: C. Deschamps‐Berger, J. I. López‐Moreno, S. Gascoin, G. Mazzotti, A. Boone
Format: Article
Language:English
Published: Wiley 2025-05-01
Series:Geophysical Research Letters
Subjects:
Online Access:https://doi.org/10.1029/2024GL113684
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author C. Deschamps‐Berger
J. I. López‐Moreno
S. Gascoin
G. Mazzotti
A. Boone
author_facet C. Deschamps‐Berger
J. I. López‐Moreno
S. Gascoin
G. Mazzotti
A. Boone
author_sort C. Deschamps‐Berger
collection DOAJ
description Abstract The complex interactions between snow cover and forests have implications for ecosystems, water resources and the Earth's climate. However, the geographic distribution of where snow and forest overlap remains poorly known. Here, we evaluate the importance of snowfall over forested environments and its spatial variability at the global scale and a 0.1° spatial resolution, leveraging an existing climatological reanalysis and a satellite tree cover map. We find that 23% of the land mass (30.5·106 km2) experiences snowfall in forested areas, mostly in the boreal forest (15.8·106 km2) and elsewhere in mountains (4.9·106 km2). There, the solid fraction of precipitation in forest is greater than the median value of 11.1% over 15.3·106 km2, reaches 64% locally, and 23% when aggregated over hydrological basins larger than 105 km2.
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publishDate 2025-05-01
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series Geophysical Research Letters
spelling doaj-art-aeb12e3a07994589a7a1da538d50166f2025-08-20T02:30:59ZengWileyGeophysical Research Letters0094-82761944-80072025-05-015210n/an/a10.1029/2024GL113684Where Snow and Forest Meet: A Global AtlasC. Deschamps‐Berger0J. I. López‐Moreno1S. Gascoin2G. Mazzotti3A. Boone4Pyrenean Institute of Ecology Zaragoza SpainPyrenean Institute of Ecology Zaragoza SpainCESBIO Université de Toulouse CNRS/CNES/IRD/INRA/Univ Toulouse 3 Paul Sabatier Toulouse FranceLaboratory of Hydraulics Hydrology and Glaciology (VAW) Zurich SwitzerlandCNRM‐Université de Toulouse Météo‐France/CNRS Toulouse FranceAbstract The complex interactions between snow cover and forests have implications for ecosystems, water resources and the Earth's climate. However, the geographic distribution of where snow and forest overlap remains poorly known. Here, we evaluate the importance of snowfall over forested environments and its spatial variability at the global scale and a 0.1° spatial resolution, leveraging an existing climatological reanalysis and a satellite tree cover map. We find that 23% of the land mass (30.5·106 km2) experiences snowfall in forested areas, mostly in the boreal forest (15.8·106 km2) and elsewhere in mountains (4.9·106 km2). There, the solid fraction of precipitation in forest is greater than the median value of 11.1% over 15.3·106 km2, reaches 64% locally, and 23% when aggregated over hydrological basins larger than 105 km2.https://doi.org/10.1029/2024GL113684seasonal snowforestcryosphereglobal atlas
spellingShingle C. Deschamps‐Berger
J. I. López‐Moreno
S. Gascoin
G. Mazzotti
A. Boone
Where Snow and Forest Meet: A Global Atlas
Geophysical Research Letters
seasonal snow
forest
cryosphere
global atlas
title Where Snow and Forest Meet: A Global Atlas
title_full Where Snow and Forest Meet: A Global Atlas
title_fullStr Where Snow and Forest Meet: A Global Atlas
title_full_unstemmed Where Snow and Forest Meet: A Global Atlas
title_short Where Snow and Forest Meet: A Global Atlas
title_sort where snow and forest meet a global atlas
topic seasonal snow
forest
cryosphere
global atlas
url https://doi.org/10.1029/2024GL113684
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