Environmental & Climate Sciences Department Seminar

"Understanding the Complexity of Arctic Ecosystem Change: Improving Arctic Ecology and Process Modeling with Multi-scale Remote Sensing"

Presented by Daryl Yang, BNL

Thursday, November 9, 2023, 11:00 am — Large Conference Room, Bldg. 490

Terrestrial vegetation plays an important role in regulating global carbon, water, and energy fluxes and moderates anthropogenic warming. In the remote Arctic, the climate has warmed two to four times faster than the rest of the planet, driving pronounced changes in vegetation distribution, function, and seasonal dynamics (known as "Arctic greening"). These changes in Arctic vegetation, on par with permafrost thaw, essentially determine the fate of the carbon and energy budget of the Arctic. However, complex interactions among climate, permafrost, landforms, and vegetation create highly-complex Arctic ecosystems that are hard to characterize across spatial and temporal scales. This is further complicated by the region's remoteness and harsh environmental conditions. Incomplete understanding and simplified representation of Arctic vegetation in Earth System Models has led to large uncertainties in our prediction of Arctic processes. In this seminar, I will present how novel multi-scale remote sensing technologies - from ground to unoccupied aerial systems (UASs), airborne, and satellites - can address these observational challenges to improve our understanding of Arctic ecosystems across spatial and temporal scales.

Hosted by: Alistair Rogers

Videoconference Instructions

Meeting ID: 161 546 1284 Passcode: 803399 —- One tap mobile +16692545252,,1615461284#,,,,*803399# US (San Jose) +16468287666,,1615461284#,,,,*803399# US (New York) —- Dial by your location • +1 669 254 5252 US (San Jose) • +1 646 828 7666 US (New York) • +1 646 964 1167 US (US Spanish Line) • +1 551 285 1373 US (New Jersey) • +1 669 216 1590 US (San Jose) • +1 415 449 4000 US (US Spanish Line)

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