Long-Term Measurements of Methane Ebullition From Thaw Ponds

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Sökning: onr:"swepub:oai:DiVA.org:su-173043" > Long-Term Measureme...

1 av 1
Föregående post
Nästa post
Till träfflistan

LIBRIS Formathandbok (Information om MARC21)

Fältnamn	Indikatorer	Metadata
000		03120naa a2200349 4500
001		oai:DiVA.org:su-173043
003		SwePub
008		190930s2019 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1730432 URI
024	7	a https://doi.org/10.1029/2018JG0047862 DOI
040		a (SwePub)su
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Burke, S. A.4 aut
245	1 0	a Long-Term Measurements of Methane Ebullition From Thaw Ponds
264	1	c 2019
338		a print2 rdacarrier
520		a Arctic regions are experiencing rapid warming, leading to permafrost thaw and formation of numerous water bodies. Although small ponds in particular are considered hot spots for methane (CH4) release, long-term studies of CH4 efflux from these surfaces are rare. We have collected an extensive data set of CH4 ebullition (bubbling) measurements from eight small thaw ponds (<0.001 km(2)) with different physical and hydrological characteristics over four summer seasons, the longest set of observations from thaw ponds to date. The measured fluxes were highly variable with an average of 20.0 mg CH4 . m(-2) . day(-1) (median: 4.1 mg CH4 . m(-2) . day(-1), n = 2,063) which is higher than that of most nearby lakes. The ponds were categorized into four types based on clear and significant differences in bubble flux. We found that the amount of CH4 released as bubbles from ponds was very weakly correlated with environmental variables, like air temperature and atmospheric pressure, and was potentially more related to differences in physical characteristics of the ponds. Using our measured average daily bubble flux plus the available literature, we estimate circumpolar thaw ponds <0.001 km(2) in size to emit between 0.2 and 1.0 Tg of CH4 through ebullition. Our findings exemplify the importance of high-frequency measurements over long study periods in order to adequately capture the variability of these water bodies. Through the expansion of current spatial and temporal monitoring efforts, we can increase our ability to estimate CH4 emissions from permafrost pond ecosystems now and in the future.
650	7	a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe
650	7	a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng
700	1	a Wik, Martinu Stockholms universitet,Institutionen för geologiska vetenskaper4 aut0 (Swepub:su)mawi4258
700	1	a Lang, A.4 aut
700	1	a Contosta, A. R.4 aut
700	1	a Palace, M.4 aut
700	1	a Crill, Patrick M.u Stockholms universitet,Institutionen för geologiska vetenskaper4 aut0 (Swepub:su)pcril
700	1	a Varner, R. K.4 aut
710	2	a Stockholms universitetb Institutionen för geologiska vetenskaper4 org
773	0	t Journal of Geophysical Research - Biogeosciencesg 124:7, s. 2208-2221q 124:7<2208-2221x 2169-8953x 2169-8961
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-173043
856	4 8	u https://doi.org/10.1029/2018JG004786

Hitta via bibliotek

Journal of Geophysical Research - Biogeosciences (Sök värdpublikationen i LIBRIS)

Till lärosätets databas

1 av 1
Föregående post
Nästa post
Till träfflistan

Hitta mer i SwePub

Av författaren/redakt...: Burke, S. A.; Wik, Martin; Lang, A.; Contosta, A. R.; Palace, M.; Crill, Patrick M ...; visa fler...; Varner, R. K.; visa färre...

Om ämnet

NATURVETENSKAP: NATURVETENSKAP; och Geovetenskap och ...

Artiklar i publikationen: Journal of Geoph ...

Av lärosätet: Stockholms universitet

Sök utanför SwePub

Sök vidare i:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se