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topographical map published in 1977, the area was approximately 0.25 km (62 acres). However, in recent years the pond has shrunk considerably. The maximum depth in 1993–1994 was described as "a foot deep" (30 cm). In
January 1997, it was approximately 10 centimetres (3.9 in) deep; in
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Don Juan Pond was discovered in 1961. It was named for two helicopter pilots, Lt. Don Roe and Lt. John Hickey, who piloted the helicopter involved with the first field party investigating the pond.
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December 1998, the pond was almost dry everywhere except for an area of a few tens of square metres. Most of the remaining water was in depressions around large boulders in the pond.
307:. Salinity varies over time from 200 to 474 g/L, dominated by calcium chloride. It is the only Antarctic hypersaline lake that almost never freezes. It has been described as a
357:
Yamagata, N.; T. Torii, S. Murata. "Report of the
Japanese summer parties in Dry Valleys, Victoria Land, 1963–65; V – Chemical composition of lake waters".
565:
Siegel, B.Z.; McMurty, G.; Siegel, S.M.; Chen, J.; Larock, P. (30 August 1979). "Life in the calcium chloride environment of Don Juan Pond, Antarctica".
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Don Juan Pond is a shallow, flat-bottom, hyper-saline pond. It has the second-highest total dissolved solids on record, 1.3 times greater
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268:. With a salinity level of 33.8%, Don Juan Pond is the saltiest of the Antarctic lakes. This salinity causes significant
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to the south and the Dais Range to the north. On the west end is a small tributary and a
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U.S. Geological Survey
Geographic Names Information System: Don Juan Pond
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The area and volume of Don Juan Pond vary over time. According to the
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539:. McMurdo Dry Valleys Long-Term Ecological Research. Archived from
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Don Juan Pond is located near lower left (southwest) corner of map
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The
Ecology of Cyanobacteria: Their Diversity in Time and Space
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salts that have precipitated as the water evaporated.
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Salty
Antarctic pond could be a replica of Mars' water
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zone. The area around Don Juan Pond is covered with
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612:"NASA Says Signs of Liquid Water Flowing on Mars"
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504:. In Whitton, Brian A.; Potts, Malcolm (eds.).
347:) water of Don Juan Pond have been ambiguous.
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658:Great Zoom into Don Juan Pond, Antarctica
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256:, 9 kilometres (5.6 mi) west from
189:3,000 m (110,000 cu ft)
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610:Chang, Kenneth (28 September 2015).
165:0.03 km (0.012 sq mi)
469:Saline Lake Ecosystems of the World
387:Saline Lake Ecosystems of the World
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282:Don Juan Pond seen from the air.
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324:United States Geological Survey
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16:Shallow salt lake in Antarctica
423:"Don Juan Pond and Lake Vanda"
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700:Endorheic lakes of Antarctica
675:Don Juan Pond GigaPan picture
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240:is a small and very shallow
260:. It is wedged between the
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695:Saline lakes of Antarctica
508:. Springer. p. 287.
472:. Springer. p. 109.
390:. Springer. p. 109.
270:freezing-point depression
38:
26:
197:116 m (381 ft)
173:16 in (410 mm)
157:100 m (330 ft)
149:300 m (980 ft)
181:3 ft (0.91 m)
690:Lakes of Victoria Land
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283:
244:in the western end of
103:77.56444°S 161.17222°E
500:Oren, Aharon (2007).
466:Hammer, U.T. (1986).
454:Astrobiology Magazine
384:Hammer, U.T. (1986).
309:groundwater discharge
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108:-77.56444; 161.17222
705:McMurdo Dry Valleys
581:1979Natur.280..828S
456:. 23 November 2017.
231:(14 km to the east)
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663:2019-12-05 at the
617:The New York Times
502:"Salts and Brines"
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575:(5725): 828–829.
421:Vanjo, Grobljar.
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359:Antarctic Record
317:calcium chloride
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125:Hypersaline lake
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22:Don Juan Pond
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650:Lakes portal
623:28 September
621:. Retrieved
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548:. Retrieved
541:the original
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401:. Retrieved
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266:rock glacier
262:Asgard Range
237:
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186:Water volume
162:Surface area
137:(Antarctica)
341:hypersaline
335:Studies of
224:Settlements
146:Max. length
106: /
94:161°10′20″E
81:Coordinates
684:Categories
371:References
351:Literature
258:Lake Vanda
254:Antarctica
178:Max. depth
154:Max. width
91:77°33′52″S
427:pbase.com
337:lifeforms
303:than the
661:Archived
597:27550775
550:28 March
521:27 March
485:27 March
432:April 7,
403:27 March
365:: 53–75.
343:(and/or
305:Dead Sea
301:salinity
295:Salinity
70:Location
577:Bibcode
339:in the
215:Islands
595:
568:Nature
512:
476:
394:
206:Frozen
593:S2CID
544:(csv)
345:brine
132:Basin
625:2015
552:2018
523:2018
510:ISBN
487:2018
474:ISBN
434:2017
405:2018
392:ISBN
331:Life
315:and
120:Type
585:doi
573:280
686::
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591:.
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413:^
363:29
361:.
252:,
209:No
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407:.
219:0
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
