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THAWSOME SIGNED

THAWing permafrost: the fate of Soil Organic Matter in the aquatic Environment

Total Cost €

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EC-Contrib. €

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Partnership

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 THAWSOME project word cloud

Explore the words cloud of the THAWSOME project. It provides you a very rough idea of what is the project "THAWSOME" about.

sediment    emission    frozen    warming    numerical    amount    global    quantified    land    lateral    sequestering    oc    causes    occurs    model    relatively    ghg    coupling    estimates    critically    feedback    biogeochemical    climate    bury    natural    multiple    as    greenhouse    ground    introduction    slumping    release    flux    integrators    destructive    types    thawsome    generate    route    melt    collapse    insights    horizontal    region    rivers    abrupt    incubation    contrast    warms    isotope    burial    first    scaling    qualitative    fuel    previously    hydrological    turn    unknown    carbon    shelf    coupled    sediments    time    generating    sinks    sources    vulnerable    relative    gis    ice    levels    slowly    cycle    true    quantitative    generates    particulate    spatial    versus    becomes    decomposition    aquatic    rates    data    river    start    jump    gases    leaching    thaw    largely    temperatures    vertical    permafrost    boundless    surface    organic    observational    pools    either    integration    gradual    re    arctic    combining    pool    molecular    techniques   

Project "THAWSOME" data sheet

The following table provides information about the project.

Coordinator
STICHTING VU 

Organization address
address: DE BOELELAAN 1105
city: AMSTERDAM
postcode: 1081 HV
website: www.vu.nl

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Netherlands [NL]
 Project website https://www.facebook.com/THAWSOME/
 Total cost 1˙500˙000 €
 EC max contribution 1˙500˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-STG
 Funding Scheme ERC-STG
 Starting year 2016
 Duration (year-month-day) from 2016-12-01   to  2021-11-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    STICHTING VU NL (AMSTERDAM) coordinator 1˙500˙000.00

Map

 Project objective

As the Arctic permafrost region warms, its large organic carbon (OC) pool becomes vulnerable to decomposition. This generates greenhouse gases (GHG) that in turn fuel increased surface warming: the permafrost carbon feedback. Higher temperatures will jump-start the coupling between the carbon and hydrological cycle, allowing for the introduction of previously frozen OC pools in aquatic systems. This lateral, or horizontal, aquatic flux remains largely unknown in contrast to the relatively well-studied vertical flux, GHG emission on land.

Horizontal OC release either occurs via gradual thaw, slowly leaching OC into aquatic systems, or abrupt thaw, where ground-ice melt causes destructive surface collapse and slumping of OC into aquatic systems. Both types of thaw facilitate decomposition of OC (generating GHG) but also re-bury OC into sediments (sequestering OC). The relative importance of decomposition versus burial is unknown.

For THAWSOME, I have developed a multi-scale approach combining detailed process-based field studies with up-scaling techniques on multiple levels: (i) observational, using large Arctic rivers as natural integrators, (ii) numerical, using a coupled hydrological-biogeochemical model, and (iii) spatial, using GIS-based analysis. For the first time, decomposition of particulate OC from permafrost will be quantified with a recently developed incubation method. Burial rates of permafrost OC will be assessed through molecular isotope analyses of both sources (river OC) and sinks (sediment OC) across the land-to-shelf route.

THAWSOME will generate critically needed quantitative data on the amount of decomposition versus burial of permafrost OC, as well as qualitative insights into the processes that control this. This will allow a true coupling of the carbon and hydrological cycle into the 'boundless Arctic carbon cycle', and integration of horizontal OC release into estimates of the impact of the permafrost carbon feedback on global climate.

 Publications

year authors and title journal last update
List of publications.
2020 Lisa Bröder, Anya Davydova, Sergey Davydov, Nikita Zimov, Negar Haghipour, Timothy I. Eglinton, Jorien E. Vonk
Particulate Organic Matter Dynamics in a Permafrost Headwater Stream and the Kolyma River Mainstem
published pages: , ISSN: 2169-8953, DOI: 10.1029/2019jg005511
Journal of Geophysical Research: Biogeosciences 125/2 2020-03-05
2019 Birgit Wild, August Andersson, Lisa Bröder, Jorien Vonk, Gustaf Hugelius, James W. McClelland, Wenjun Song, Peter A. Raymond, Örjan Gustafsson
Rivers across the Siberian Arctic unearth the patterns of carbon release from thawing permafrost
published pages: 10280-10285, ISSN: 0027-8424, DOI: 10.1073/pnas.1811797116
Proceedings of the National Academy of Sciences 116/21 2019-11-13

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