is a
lake
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
in
Ōmachi Nagano Prefecture, Japan. It is one of the "Nishina Three Lakes" (
Lake Aoki, Lake Nakatsuna and
Lake Kizaki
is a lake, situated near Ōmachi, Nagano, Japan, and located at the foot of the northern Japanese Alps mountain range. Mesotrophic and subalpine in nature, numerous lakeside attractions surround the lake, with the locale being a popular lakeside ...
).
Its sediments have been studied in an effort to better understand
climate change
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
in Japan, finding evidence of the
Medieval Warm Period and
Little Ice Age.
References
Nakatsuna
Landforms of Nagano Prefecture
Ōmachi, Nagano
{{Nagano-geo-stub