Lake Vida

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Hypersaline, permanently ice-covered lake in Antarctica

title: "Lake Vida" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["valleys-of-antarctica", "lakes-of-antarctica", "lakes-of-victoria-land", "mcmurdo-dry-valleys", "endorheic-lakes-of-antarctica", "saline-lakes-of-antarctica"] description: "Hypersaline, permanently ice-covered lake in Antarctica" topic_path: "general/valleys-of-antarctica" source: "https://en.wikipedia.org/wiki/Lake_Vida" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Hypersaline, permanently ice-covered lake in Antarctica ::

::data[format=table title="Infobox lake"]

FieldValue
nameLake Vida
imageLake Vida 2012 01.jpg
captionLake Vida, showing ice cover and surrounding Dry Valley terrain. Picture taken in 2012.
altLake Vida, showing ice cover and surrounding Dry Valley terrain
image_bathymetryLake_Vida.png
alt_bathymetryMap of approximate location
caption_bathymetryMap of approximate location
coords
lake_typeEndorheic
inflowVictoria River, Kite Stream, Dune Creek
outflownone
catchmentVida Basin
basin_countries(Antarctica)
length5.4 km
width1.7 km
area6.8 km2
depthundetermined
max-depthundetermined
volumeundetermined
elevation349 m
islands0 (none)
citiesLake Vida Camp
pushpin_mapAntarctica
pushpin_map_altLocation of Lake Vida with Antarctica.
::

| name = Lake Vida | image = Lake Vida 2012 01.jpg | caption = Lake Vida, showing ice cover and surrounding Dry Valley terrain. Picture taken in 2012. | alt = Lake Vida, showing ice cover and surrounding Dry Valley terrain | image_bathymetry = Lake_Vida.png | alt_bathymetry = Map of approximate location | caption_bathymetry = Map of approximate location | location = | coords = | lake_type = Endorheic | inflow = Victoria River, Kite Stream, Dune Creek | outflow = none | catchment = Vida Basin | basin_countries = (Antarctica) | length = 5.4 km | width = 1.7 km | area = 6.8 km2 | depth = undetermined | max-depth = undetermined | volume = undetermined | residence_time = | shore = | elevation = 349 m | frozen = | islands = 0 (none) | cities = Lake Vida Camp | pushpin_map = Antarctica | pushpin_label_position = | pushpin_map_alt = Location of Lake Vida with Antarctica. | pushpin_map_caption = | website = | reference =

Lake Vida is a hypersaline lake in Victoria Valley, the northernmost of the large McMurdo Dry Valleys, on the continent of Antarctica. It is isolated under year-round ice cover, and is considerably more saline than seawater. It came to public attention in 2002 when microbes frozen in its ice cover for more than 2,800 years were successfully thawed and reanimated.

Introduction

Lake Vida is one of the largest lakes in the McMurdo Dry Valley region and is a closed-basin endorheic lake. Notably, the permanent surface ice on the lake is the thickest non-glacial ice on earth, reaching a depth of at least 21 m. The ice at depth is saturated with brine that is seven times as saline as seawater. Figure 1: Bathymetric map of Lake Vida

  • The high salinity allows the brine to remain liquid at an average yearly water temperature of -13 C. The ice cap has sealed the saline brine from external air and water for thousands of years, creating a time capsule for ancient DNA. This combination of lake features makes Lake Vida a unique lacustrine ecosystem on Earth.

The lake gained widespread recognition in December 2002 when a research team, led by the University of Illinois at Chicago's Peter Doran, announced the discovery of 2,800‑year‑old halophile microbes (primarily filamentous cyanobacteria) preserved in ice layer core samples drilled in 1996. The microbes reanimated upon thawing, grew and reproduced. Due to this discovery and the freezing mechanisms forming Lake Vida's ice-seal, Lake Vida is now noted as a location for research into Earth's climate and life under extreme conditions, specifically the fauna that could have existed on Mars. The unmanned Lake Vida Meteorological Station monitors climate conditions around the lake year round for such scientific study.

A 2010 field campaign, funded by the National Science Foundation through the American Recovery and Reinvestment Act of 2009, to investigate the microbiology and geochemistry of Lake Vida. Led by Peter Doran and Alison Murray from Nevada's Desert Research Institute, the expedition recovered ice cores, brine and sediment samples from the lake using clean drilling procedures to avoid contamination.

The lake itself has no permanent settlements or infrastructure. The nearby Lake Vida Meteorological Station is unmanned, sending meteorological data to McMurdo Dry Valleys Long Term Ecological Research organization. The closest human settlement is Scott Base McMurdo approximately 125 km away. In addition to the unmanned observation station, a 5-day emergency supply of food for 6 people is cached 600 m from the southwestern shore. Research teams establish temporary camps from which research activities are conducted on short term basis in the summer months.

Composition

Lake Vida does not possess many factors attributed to the existence of life formations. Lake Vida contains high levels of nitrous oxide (N2O) and also molecular hydrogen (H2). The chemicals are believed to be released from chemical reactions between the brine and underlying sediments. The molecular hydrogen may be crucial as an energy source for life in the lake and aids in justifying the presence of life in an oxygen-deprived environment.

Hydrology

Lake Vida has at least three named inflows: Victoria River, Kite Stream, and Dune Creek. Victoria River passes through the Vida Basin into Victoria Valley, Victoria Land as ephemeral glacial meltwater from the Upper Victoria Glacier, draining from Victoria Upper Lake, 7 km to the northwest, to finally drain into the west end of Lake Vida. Kite Stream is also located in the Vida Basin and flows as ephemeral glacial meltwater west from the Victoria Lower Glacier into the east end of Lake Vida. The United States Geological Survey's Atlas of Antarctic Research maps up to nine Lake Vida inflows or outflows including Victoria River and Kite Stream. The inflows and outflows are normally dry due to average annual temperatures down to -30 C at Lake Vida. Meltwater flows for a few weeks in the summer months when temperatures rise sufficiently for the nearby glaciers to melt. The McMurdo Dry Valleys are classified as extreme desert. The area receives less than 10 cm of snow precipitation a year, in the form of snow that builds the nearby glaciers.

Geology

Main geological features

In the vicinity of Lake Vida, a variety of geological features are noted, the most significant being glaciers, lakes, valleys, ridges, and summits. There are approximately 25 named glaciers within a 25 km radius with the nearest being Upper Victoria Glacier, Packard Glacier, Clark Glacier, and Clio Glacier. In the same radius, there are approximately 14 named ridges with the nearest being Robertsons Ridge, Helios Ridge, and Nottage Ridge. In addition to Victoria Valley, there are 16 named valleys with the nearest being Sanford Valley, Barwick Valley and McKelvey Valley. In addition to Upper Victoria Lake that feeds Lake Vida with meltwater, there are approximately 11 other lakes, the nearest being Lake Thomas. The summits around Lake Vida are as follows, Mautino Peak, Mount Saga, Mount Allen, Mount Theseus, Mount Cerberus, Mount Insel, Nickell Peak, and Sponsors Peak.

Other geological features

Other more minor features include benches, cliffs, gaps, and streams. The Victoria Valley dunefield, an approximately 1.5 km2 belt which is about 3.1 km long, lies to the east of Lake Vida. It is an important site for research into the landforms and processes of perennial niveo-aeolian environments.

Natural history

Kite Stream is named after a researcher, James Kite, who found numerous meteorites in the area (1977–1978).

History

Lake Vida lies north of Mount Cerberus in the Victoria Valley of Victoria Land. Named by the Victoria University of Wellington Antarctic Expedition (1958–59) after Vida (Vaida), a sledge dog of the Nimrod Expedition, 1910-13. Lake Vida was originally thought to be frozen to the lakebed.

Life

Scientists have found life in an Antarctic Lake Vida that was sealed off from the outside world by a thick sheet of ice several thousands of years ago. The discovery of the ecosystem pushes the boundaries of what life can endure, and may inform the search for alien microbes on other planets, such as Mars, or on icy moons, for instance, Jupiter's moon Europa.

Species lists

The following eukaryote species have been catalogued within 1 degree of Lake Vida:

Kingdom Animalia

Kingdom Fungi

Kingdom Plantae

Kingdom Protista

References

References

References

  1. "Lake Vida {{!}} McMurdo Dry Valleys LTER".
  2. [http://www.dri.edu/People/cfritsen/grads/Mosier.html Annika Mosier] {{webarchive. link. (2006-05-26 at [[Desert Research Institute]])
  3. National Science Foundation [https://www.nsf.gov/od/lpa/news/02/pr02100.htm press release] for Doran ''et al.'' (2003)
  4. [http://huey.colorado.edu/LTER/datasets/meteorology/vida.html Lake Vida Meteorology Station] {{webarchive. link. (2004-03-24)
  5. [http://www.glaciers.pdx.edu/McMurdoVT/Vida.html 360° Panorama] {{webarchive. link. (2006-09-03 from Lake Vida Meteorologic Station)
  6. (September 14, 2009). "Digging deeper below Antarctica's Lake Vida". PhysOrg.com.
  7. [http://www.aad.gov.au/asset/science/publications/cfg0402.pdf Contaminents in Freezing Ground] {{webarchive. link. (2006-08-31 , Sanpe et al.)
  8. [http://quest.nasa.gov/antarctica/background/NSF/field-guide/append.html NASA Quest] {{Webarchive. link. (2009-04-27 , the Lake Vida cache)
  9. [https://www.theguardian.com/world/2012/nov/26/antarctic-lake-vida-find-life], Sanpe et al.
  10. [https://usarc.usgs.gov/ant-ogc-viewer/viewer.htm USGS USGS Atlas of Antarctic Research] {{webarchive. link. (2005-10-01)
  11. (15 August 2009). "Sand dune movement in the Victoria Valley, Antarctica". Elsevier.
  12. link. (2007-09-26 , Australian Antarctic Data Center)
  13. link. (2007-09-26 Reference No 15493)
  14. [http://web.pdx.edu/~cdelany/Papers/Research_Proposal.pdf Synthetic Aperture Radar detection of changes in ice and soil surfaces, McMurdo Dry Valleys, Antarctica] {{webarchive. link. (2006-08-18)
  15. Sample, Ian. (26 November 2012). "Antarctic lake find pushes known boundaries of what life can endure". The Guardian.
  16. (Dec 11, 2012). "Microbial life at −13 °C in the brine of an ice-sealed Antarctic lake". PNAS.
  17. [https://data.aad.gov.au/aadc/biodiversity/species_near_place.cfm?lat=-77.3833333&lon=161.95&offset=1.0 Australian Antarctic Data Center, SCAR Gazetteer]

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