The Large Lakes Observatory (or LLO) is a research institute located in

Duluth, Minnesota , settlement_type = City , nicknames = Twin Ports (with Superior), Zenith City , motto = , image_skyline = , image_caption = Clockwise from top: urban Duluth skyline; Minnesota ...

USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

which studies the major lakes of the world. The researchers focus on a variety of sciences including

aquatic chemistry An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, or sodium chloride (NaCl), in water would be rep ...

geochemistry Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing the e ...

and

paleoclimatology Paleoclimatology (British spelling, palaeoclimatology) is the study of climates for which direct measurements were not taken. As instrumental records only span a tiny part of Earth's history, the reconstruction of ancient climate is important to ...

. Its stated purpose dedicates the LLO to "performing innovative, cross-disciplinary research, education, and outreach that advance scientific understanding of Earth’s large lakes for the benefit of society and the sustainability of freshwaters." The parent institution of LLO is the

University of Minnesota Duluth The University of Minnesota Duluth (UMD) is a public university in Duluth, Minnesota. It is part of the University of Minnesota system and offers 16 bachelor's degrees in 88 majors, graduate programs in 25 different fields, and a two-year progr ...

History

The Large Lakes Observatory was founded in 1994, after a 1988 scientific and policy conference resulted in the formation of the "Institute for Lake Superior Research" which developed into the LLO. It moved into its present location in the Research Laboratory Building in Duluth, MN after a fire in the former Old Main campus building (now the site of Old Main Park) left the Model School building untouched. LLO moved into the Model School Building shortly thereafter. Past directors of LLO include Dr. Tom Johnson and Dr. Steve Colman. Scientific expeditions carried out by LLO scientists have visited all of the

Laurentian Great Lakes The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lake ...

, the East African Rift Lakes,

Lake Issyk Kul Issyk-Kul (also Ysyk-Köl, ky, Ысык-Көл, lit=warm lake, translit=Ysyk-Köl, , zh, 伊塞克湖) is an endorheic lake (i.e., without outflow) in the Northern Tian Shan mountains in Eastern Kyrgyzstan. It is the seventh-deepest lake in th ...

Lake Nicaragua Lake Nicaragua or Cocibolca or Granada ( es, Lago de Nicaragua, , or ) is a freshwater lake in Nicaragua. Of tectonic origin and with an area of , it is the largest lake in Central America, the 19th largest lake in the world (by area) and the ...

Lake Qinghai Qinghai Lake or Ch'inghai Lake, also known by other names, is the largest lake in China. Located in an endorheic basin in Qinghai Province, to which it gave its name, Qinghai Lake is classified as an alkaline salt lake. The lake has fluctu ...

Great Slave Lake Great Slave Lake (french: Grand lac des Esclaves), known traditionally as Tıdeè in Tłı̨chǫ Yatıì (Dogrib), Tinde’e in Wıìlıìdeh Yatii / Tetsǫ́t’ıné Yatıé (Dogrib / Chipewyan), Tu Nedhé in Dëne Sųłıné Yatıé (Chi ...

, and others.

Research Vessels

The LLO operates the ''R/V'' ''Blue Heron'' as the only University National Oceanographic Laboratory System vessel on the Great Lakes. The ''R/V Blue Heron'' has an

overall length The overall length (OAL) of an ammunition cartridge is a measurement from the base of the brass shell casing to the tip of the bullet, seated into the brass casing. Cartridge overall length, or "COL", is important to safe functioning of reloads in ...

of 26 m and berths for 11 party members.

Outreach

Large Lakes Observatory members coordinate and participate in various public outreach events. These include annual tours of the ''R/V'' Blue Heron, a permanent exhibit at the

Great Lakes Aquarium The Great Lakes Aquarium opened in 2000 and is located on the Duluth waterfront. A 501(c)(3) private nonprofit, Great Lakes Aquarium features animals and habitats found within the Great Lakes basin and other freshwater ecosystems such as the Amaz ...

, and public data portals for LLO-managed water quality instruments.

References

Lakes Observatories {{observatory-stub