Publications by authors named "Dehai Luo"
Article Synopsis
- Boreal wildfires in eastern Siberia have been increasing due to a combination of climate factors, leading to higher emissions of carbon dioxide and pollutants.
- About 79% of the increase in summer vapor pressure deficit (VPD), which influences wildfires, is linked to background warming in the eastern Siberian Arctic due to declining sea ice, while 21% is attributed to changing atmospheric conditions.
- Changes in Siberian blocking events are contributing to this issue, as they are becoming more frequent and intense due to warmer conditions, further exacerbating the wildfire situation in the region.
Winter Arctic sea-ice concentration (SIC) decline plays an important role in Arctic amplification which, in turn, influences Arctic ecosystems, midlatitude weather and climate. SIC over the Barents-Kara Seas (BKS) shows large interannual variations, whose origin is still unclear. Here we find that interannual variations in winter BKS SIC have significantly strengthened in recent decades likely due to increased amplitudes of the El Niño-Southern Oscillation (ENSO) in a warming climate.
View Article and Find Full Text PDFWarming in the Arctic has been much faster than the rest of the world in both observations and model simulations, a phenomenon known as the Arctic amplification (AA) whose cause is still under debate. By analyzing data and model simulations, here we show that large AA occurs only from October to April and only over areas with significant sea-ice loss. AA largely disappears when Arctic sea ice is fixed or melts away.
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