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| Created: | Jun 04, 2025 at 8:11 p.m. (UTC) | |
| Last updated: | Jun 04, 2025 at 8:26 p.m. (UTC) | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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Abstract
Experiment description: Life on Earth can often be found at the boundary
between two physical layers, as energy exchange often occurs at these
boundaries. One of the least studied interface is the ice-water boundary.
On Earth, the dynamic freezing environment of the ice-water interface leads
to an exchange of gases, ions, and other compounds that modulate the
habitability of both lake and marine environments. We proposed a study to
investigate the ice-water interface in a methane-enriched lake on the North
Slope of Alaska (Sukok lake). We plan to map and study the sources,
abundance, and transformation of methane up from lake sediments, into the
water column, into the ice, and ultimately its release to the atmosphere.
We plan to use a DTS system to measure the freeze-down of the lake with the
onset of Arctic winter. This will allow direct calibration of data
collected by the under-ice rover so that we can model the timing and
process of freeze down at high resolution. We’ll use a 1km cable wrapped
around a non-compressible composite pipe to deploy in the shallow, 2m lake.
The data collected at 1-2 mm-level resolution will be used to follow the
freezing front of the lake, in addition to recording ice vs. underlying
water temperatures throughout the winter. In addition the timing of spring
melt processes will also be recorded. This data will be combined with the
buoyant rover-collected data to derive freezing rate. The larger project is
studying the incorporation of solutes and microorganisms into the freezing
front, and the ice as a habitat.
Subject Keywords
Coverage
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Content
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
|---|---|---|
| NASA Safety Center | 23-PSTAR23-0044 |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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