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  • Coastal deltas limit dissolved black carbon export despite changing wildfire regimes in a major Arctic watershed (Yukon River, Alaska), 2019-2023
Title: Coastal deltas limit dissolved black carbon export despite changing wildfire regimes in a major Arctic watershed (Yukon River, Alaska), 2019-2023
As the climate changes, fire regimes at northern high latitudes are shifting, which may alter the distribution and sequestration of carbon on land, in rivers, and in the ocean. However, dissolved black carbon dynamics (DBC) within the land-ocean continuum and amid such rapidly changing wildfire regimes are poorly understood. In summer 2022, the Yukon River watershed experienced its second highest fire year on record. This dataset includes dissolved organic carbon (DOC) quantities and DBC quantities, character, and compound-specific stable carbon isotopes of Yukon River Delta and Bering Sea water (Alaska, USA), collected during the spring freshets of 2019 and 2023, as well as late summer 2022. DBC was analyzed using the benzenepolycarboxylic acid (BPCA) method.  more » « less
Award ID(s):
2300039
PAR ID:
10681454
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
NSF Arctic Data Center
Date Published:
Subject(s) / Keyword(s):
black carbon Arctic rivers wildfire organic carbon delta biogeochemistry DOC Yukon River Bering Sea coastal processes spring freshet benzenepolycarboxylic acid BPCA
Format(s):
Medium: X
Institution:
Rensselaer Polytechnic Institute, Florida State University
Sponsoring Org:
National Science Foundation
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