Temperature differences across the ice-free season of summer 2014 in southwest Greenland lakes, including differences in depth and regions.

<p>Bars represent 1 SE of the mean. Statistics outlining differences among groups may be found in the text.</p

Individual relationships between predictors of methane (CH₄) in Greenland lakes.

<p>All lines represent significant regression models. Statistics for each relationship can be found in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0159642#pone.0159642.t003" target="_blank">Table 3</a>.</p

Regression results for predicting methane (CH₄) in southwest Greenland lakes, along with the validation of this model using 2013 pilot lake data.

<p>Regression results for predicting methane (CH₄) in southwest Greenland lakes, along with the validation of this model using 2013 pilot lake data.</p

Factors Controlling Methane in Arctic Lakes of Southwest Greenland - Fig 3

<p>Regional differences in (a) chloride (Cl), (b) sodium (Na), (c) calcium (Ca), (d) magnesium (Mg), and (e) DOC in lakes across southwest Greenland. Bars represent 1 SE of the mean, and letters represent significant differences (p < 0.05) based on post-hoc comparisons of ln-transformed data.</p

Lake characteristics for pilot lakes sampled in 2013.

<p>Lake characteristics for pilot lakes sampled in 2013.</p

Methane concentrations (μmol L^-1) across the study region in southwest Greenland.

<p>Methane concentrations (μmol L^-1) across the study region in southwest Greenland.</p

Patterns in lake-water methane and sulfate concentrations across the sampling region from the Greenland Ice Sheet outward in 2014.

<p>Patterns in lake-water methane and sulfate concentrations across the sampling region from the Greenland Ice Sheet outward in 2014.</p

Characteristics of the 15 lakes used in this study.

<p>Characteristics of the 15 lakes used in this study.</p

Relationship between observed and predicted lake methane values in pilot lakes sampled in 2013.

<p>Relationship between observed and predicted lake methane values in pilot lakes sampled in 2013.</p

experiments_phyto_12_26_15

cell densities of phytoplankton taxa in initial lake water and in each experimental replicate. column definitions are provided in ReadMe.txt