Contrasting impacts of forests on cloud cover based on satellite observations.
Contrasting impacts of forests on cloud cover based on satellite observations.
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DOI：
10.1038/s41467-022-28161-7
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发表时间：
2022-02-03
影响因子：
16.6
通讯作者：
Fu B
中科院分区：
文献类型：
--
作者：
Xu R;Li Y;Teuling AJ;Zhao L;Spracklen DV;Garcia-Carreras L;Meier R;Chen L;Zheng Y;Lin H;Fu B
森林在调节气候和水文周期中起着关键作用。明智的加热，云的增强更可能在较大的森林中发生，而云抑制较小的森林造成了较小的森林覆盖范围。渗透理解森林云相互作用，在地球系统模型中仍然不确定。
在这里，森林如何影响不同地区的云覆盖，作者使用卫星数据表明森林在大多数温度和北方森林中增强了云，但在亚马逊，中非和美国东南部的森林中抑制了云层。
Forests play a pivotal role in regulating climate and sustaining the hydrological cycle. The biophysical impacts of forests on clouds, however, remain unclear. Here, we use satellite data to show that forests in different regions have opposite effects on summer cloud cover. We find enhanced clouds over most temperate and boreal forests but inhibited clouds over Amazon, Central Africa, and Southeast US. The spatial variation in the sign of cloud effects is driven by sensible heating, where cloud enhancement is more likely to occur over forests with larger sensible heat, and cloud inhibition over forests with smaller sensible heat. Ongoing forest cover loss has led to cloud increase over forest loss hotspots in the Amazon (+0.78%), Indonesia (+1.19%), and Southeast US (+ 0.09%), but cloud reduction in East Siberia (-0.20%) from 2002-2018. Our data-driven assessment improves mechanistic understanding of forest-cloud interactions, which remain uncertain in Earth system models. How forests influence cloud cover in different regions is not well understood. Here, the authors use satellite data to show that forests enhance clouds over most temperate and boreal forests but inhibited clouds over forests of Amazon, Central Africa, and Southeast US relative to nonforest areas.
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影响因子：
16.6
作者：
Duveiller G;Hooker J;Cescatti A
通讯作者：
Cescatti A
影响因子：
2.7
作者：
Allen, Craig D.;Breshears, David D.;McDowell, Nate G.
通讯作者：
McDowell, Nate G.
影响因子：
2.2
作者：
Frey, Richard A.;Ackerman, Steven A.;Wang, Xuangi
通讯作者：
Wang, Xuangi
影响因子：
4.4
作者：
Garcia-Carreras, Luis;Parker, Douglas J.;Murphy, Jennifer G.
通讯作者：
Murphy, Jennifer G.
影响因子：
16.6
作者：
Duveiller G;Filipponi F;Ceglar A;Bojanowski J;Alkama R;Cescatti A
通讯作者：
Cescatti A