<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Wlostowski, Adam</style></author><author><style face="normal" font="default" size="100%">Michael N. Gooseff</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">W. Berry Lyons</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Transit times and rapid chemical equilibrium explain chemostasis in glacial meltwater streams in the McMurdo Dry Valleys, Antarctica</style></title><secondary-title><style face="normal" font="default" size="100%">Geophysical Research Letters</style></secondary-title><short-title><style face="normal" font="default" size="100%">Geophys. Res. Lett.</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">12/2018</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018GL080369</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">45</style></volume><pages><style face="normal" font="default" size="100%">13322 - 13331</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Fluid&amp;nbsp; transit&amp;nbsp; time&amp;nbsp; is&amp;nbsp; understood&amp;nbsp; to&amp;nbsp; be&amp;nbsp; an&amp;nbsp; important&amp;nbsp; control&amp;nbsp; on&amp;nbsp; the&amp;nbsp; shape&amp;nbsp; of concentration-discharge (&lt;em&gt;C-q&lt;/em&gt;) relationships, yet empirical evidence supporting this linkage is limited. We investigated &lt;em&gt;C-q&lt;/em&gt; relationships for weathering-derived solutes across seven Antarctic glacial meltwate streams. We hypothesized that (H1) solute fluxes in McMurdo Dry Valley streams are reaction limited so that &lt;em&gt;C-q&amp;nbsp;&lt;/em&gt;relationships are characterized by dilution and that (H2) transit time explains between-stream variability in the degree of &lt;em&gt;C-q&lt;/em&gt; dilution. Results show that &lt;em&gt;C-q&lt;/em&gt; relationships are chemostatic because solute equilibrium times are shorter than stream corridor fluid transit times. Between-stream variability in the efficiency of solute production is positively correlated with transit time, suggesting that transit time is an important control on the solute export regime. These results provide empirical evidence for the controls on weathering-derived &lt;em&gt;C-q&lt;/em&gt; relationships and have important implications for Antarctic ecosystems and solute export regimes of watersheds worldwide.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">24</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Leslie, D.L.</style></author><author><style face="normal" font="default" size="100%">Kathleen A. Welch</style></author><author><style face="normal" font="default" size="100%">W. Berry Lyons</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A temporal stable isotopic (δ18O, δD, d-excess) comparison in glacier meltwater streams, Taylor Valley, Antarctica</style></title><secondary-title><style face="normal" font="default" size="100%">Hydrological Processes</style></secondary-title><short-title><style face="normal" font="default" size="100%">Hydrological Processes</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">08/2017</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://onlinelibrary.wiley.com/doi/10.1002/hyp.11245/full</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">31</style></volume><pages><style face="normal" font="default" size="100%">3069 - 3083</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;In this paper, we describe the importance of hyporheic dynamics within Andersen Creek and Von Guerard Stream, Taylor Valley, Antarctica, from the 2010&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;&amp;ndash;&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;2011 melt season using natural tracers. Water collection started at flow onset and continued, with weekly hyporheic&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;zone sampling. The water &lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+03&amp;quot;;&quot;&gt;δ&lt;/span&gt;&lt;span style=&quot;font-size: 6pt; font-family: AdvTTa9c1b374; vertical-align: 4pt;&quot;&gt;18&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;O and &lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+03&amp;quot;;&quot;&gt;δ&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;D values were isotopically lighter in the beginning and heavier later in the season. D&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;excess measurements were used as an indicator of mixing because an evaporative signature was evident and distinguishable between 2 primary end&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;members (glacier meltwater and hyporheic zone). Hyporheic&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;zone influence on the channel water was variable with a strong control on streamwater chemistry, except at highest discharges. This work supports previous research indicating that Von Guerard Stream has a large, widespread hyporheic zone that varies in size with time and discharge. Andersen Creek, with a smaller hyporheic zone, displayed hyporheic&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;zone solute interaction through the influence from subsurface hypersaline flow. Overall, the evolution of Taylor Valley hyporheic&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;zone hydrology is described seasonally. In mid&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;‐&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;December, the hyporheic zone is a dynamic system exchanging with the glacier meltwater in the channel, and with diminishing flow in January, the hyporheic zone drains back into the channel flow also impacting stream chemistry. This work adds new information on the role of hyporheic zone&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: &amp;quot;AdvTTa9c1b374+20&amp;quot;;&quot;&gt;&amp;ndash;&lt;/span&gt;&lt;span style=&quot;font-size: 8pt; font-family: AdvTTa9c1b374;&quot;&gt;stream interaction in these glacier meltwater streams.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">17</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>12</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Khan, A</style></author><author><style face="normal" font="default" size="100%">Howkins, Adrian</style></author><author><style face="normal" font="default" size="100%">W. Berry Lyons</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Taylor’s ‘missing’ lake: Integrating history into LTER research in the McMurdo Dry Valley</style></title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://news.lternet.edu/Article2568.html</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">LTER News</style></publisher><pub-location><style face="normal" font="default" size="100%">Albuquerque</style></pub-location><volume><style face="normal" font="default" size="100%">2013</style></volume><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Michael N. 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Barrett</style></author><author><style face="normal" font="default" size="100%">Johnson N. Nkem</style></author><author><style face="normal" font="default" size="100%">Sletten, R</style></author><author><style face="normal" font="default" size="100%">Steltzer, H</style></author><author><style face="normal" font="default" size="100%">Diana H. Wall</style></author><author><style face="normal" font="default" size="100%">Wallenstein, M</style></author><author><style face="normal" font="default" size="100%">Ross A. Virginia</style></author><author><style face="normal" font="default" size="100%">D. W. 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