Satellite-based analysis of pan-Arctic riverine particulate organic carbon transport from 1985 to 2022
By
Lian Feng
Summary
This scientific research article presents a comprehensive analysis of changes in fluvial particulate organic carbon (POC) in pan-Arctic rivers from 1985 to 2022 using satellite remote sensing data. The study examines how rapid Arctic warming (four times faster than global average) and increased precipitation (~10% since mid-20th century) are driving permafrost thaw, which in turn affects the global carbon cycle since about half of the world's soil carbon is stored in high-latitude permafrost. The research provides a space-based mapping approach to track riverine carbon transport across the Arctic region over nearly four decades.
Source
bskySatellite-based analysis of pan-Arctic riverine particulate organic carbon transport from 1985 to 2022science.orgKey quotes
· 4 pulledThe Arctic is undergoing rapid climate change, warming four times faster than the global average—a phenomenon known as Arctic amplification.
Annual precipitation in the Arctic has increased by ~10% compared to the mid-20th century.
This warmer and wetter climate has driven widespread permafrost thawing across the region, substantially affecting the global carbon cycle, as about half of the world's soil carbon is sequestered in high-latitude permafrost.
Numerous studies have documented that extensive permafrost degradation in the Arctic has led to sub...
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