polar lake

polar lake

[′pō·lər ′lāk]
(hydrology)
A lake whose surface temperature never exceeds 4°C.
References in periodicals archive ?
The new flyover maps show, for the first time, the 3-D topography and height of the 1,200-meter (4,000-foot) mountain tops, the north polar lake country, the vast dunes more than 100 meters (300 feet) high that crisscross the moon, and the thick flows that may have oozed from possible ice volcanoes.
The stereo coverage includes a large portion of Titan's north polar lakes of liquid ethane and methane.
The report profiles several vendors, including Akazi, BEA Systems (NASDAQ:BEAS), Bind Systems, BlazeSoft, Choreology, Collaxa, Commerce One, Digital Evolution, FiveSight, Fuego, Genient, HandySoft, IBM (NYSE:IBM), IDS-Scheer, Intalio, MEGA Systems, Novell (NASDAQ:NOVL), Metastorm, Microsoft (NASDAQ:MSFT), Oak Grove Systems, Pegasystems, Polar Lake, Popkin Software, Proforma, SAP, Savvion, Sonic Software (NASDAQ: PRGS), and Versata.
When the rising warm vapor hits colder upper air closer to the pole, it forms thunderhead-style clouds and dumps its condensed methane in severe storms--directly over the polar lake regions.
While Cassini has observed changes in south polar lakes using both its Imaging Science Subsystem (ISS) cameras and its radar - including the disappearance of some small lakes - the exact reasons behind the changes remain unclear, says Hayes.
The technology could also be used to explore Earth's ice-bound polar lakes, which hold clues to the origins of life on Earth.
Sunlight triggers the entry of poisonous mercury into polar lakes, but it also removes most of the toxic compound before fish can consume it, a new study suggests.
However, there have since been few quantitative investigations of benthic bryophytes in polar lakes.
Titan exhibits a variety of features, such as giant equatorial sand dunes, polar lakes, and methane-soaked mud flats.