2015
DOI: 10.1002/2015gl063126
|View full text |Cite
|
Sign up to set email alerts
|

Nitrous oxide and methane dynamics in a coral reef lagoon driven by pore water exchange: Insights from automated high‐frequency observations

Abstract: Automated cavity ring down spectroscopy was used to make continuous measurements of dissolved methane, nitrous oxide, and carbon dioxide in a coral reef lagoon for 2 weeks (Heron Island, Great Barrier Reef). Radon (222Rn) was used to trace the influence of tidally driven pore water exchange on greenhouse gas dynamics. Clear tidal variation was observed for CH4, which correlated to 222Rn in lagoon waters. N2O correlated to 222Rn during the day only, which appears to be a response to coupled nitrification‐denitr… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

2
24
2

Year Published

2016
2016
2020
2020

Publication Types

Select...
7

Relationship

3
4

Authors

Journals

citations
Cited by 41 publications
(28 citation statements)
references
References 34 publications
2
24
2
Order By: Relevance
“…There are far fewer studies on CH 4 gas transfer velocity than CO 2 (Sebacher et al 1983;Wanninkhof and Knox 1996;McGinnis et al 2015) and many studies use general k parameterizations to calculate CH 4 (Bastviken et al 2004;Call et al 2015;Maher et al 2015) or N 2 O flux rates (Harley et al 2015;O'Reilly et al 2015;Maher et al 2016) with no gas corrections other than Schmidt number normalization. However, k 600 -CH 4 has been found to be 1.4-2.9 times larger in 90% of 260 floating chamber measurements in boreal lakes in Canada (Prairie and del Giorgio 2013).…”
Section: Factors Controlling K 600mentioning
confidence: 99%
“…There are far fewer studies on CH 4 gas transfer velocity than CO 2 (Sebacher et al 1983;Wanninkhof and Knox 1996;McGinnis et al 2015) and many studies use general k parameterizations to calculate CH 4 (Bastviken et al 2004;Call et al 2015;Maher et al 2015) or N 2 O flux rates (Harley et al 2015;O'Reilly et al 2015;Maher et al 2016) with no gas corrections other than Schmidt number normalization. However, k 600 -CH 4 has been found to be 1.4-2.9 times larger in 90% of 260 floating chamber measurements in boreal lakes in Canada (Prairie and del Giorgio 2013).…”
Section: Factors Controlling K 600mentioning
confidence: 99%
“…More recent work focused on how SGD can be a source of CH4 in a carbon budget context. This includes investigations in permafrost areas where SGD releases CH4 to the ocean [Lecher et al, 2016] and coral reef lagoons subject to significant tide-induced seawater recirculation through the nearshore aquifer [O'Reilly et al, 2015]. In these cases, tide-induced saline SGD rather than FSGD was suggested to be the main source of CH4 to the coastal ocean.…”
mentioning
confidence: 99%
“…The gases CO2, N2O, and CH4, which are the main anthropogenic greenhouse gases, are often enriched in CUAs [Addy et al, 2005;O'Reilly et al, 2015;Sadat-Noori et al, 2016a]. As such SGD may be an important greenhouse gas source.…”
mentioning
confidence: 99%
See 1 more Smart Citation
“…However, some progress has been made for continuous ongoing measurements in the field, using an equilibrator connected to CRDS for N 2 O and CH 4 (ArevaloMartinez et al, 2013;Grefe and Kaiser, 2014;O'Reilly et al, 2015;Roberts and Shiller, 2015;Brannon et al, 2016;Kock et al, 2016). Recently, polydimethylsiloxane membranes (PDMS) (Helixmark, Carpinteria, CA, USA), coupled with MIMS and CDRS, have shown promising advances for GHGs measurements in freshwater (Bell et al, 2007;Gonzalez-Valencia et al, 2014).…”
Section: Introductionmentioning
confidence: 99%