Here's another chance to play geographical detective! This Multi-angle Imaging SpectroRadiometer (MISR) image covers an area measuring 355 kilometers x 287 kilometers, and was captured by the instrument's vertical-viewing (nadir) camera on August 14, 2000. This mystery concerns the large lake near the left-hand side of the image, halfway down from the top. Use any reference materials you like and answer the following three questions:

1. The lake has two commonly used names. What are they?

2. What process formed the lake's basin? (A) Meteor impact, (B) Human excavation, (C) Glacial erosion, (D) Volcanic activity.

3. Which one of the following statements about the lake is false? (A) There is an international airport within 100 kilometers, (B) Remedial efforts to mitigate eutrophication were first initiated in the 1990's, (C) Millions of people rely on the lake for drinking water, (D) A lakeside town hosts an annual celebration of Celtic music.

See quiz answers

In light of the great response to the recent "What Place is This?" quiz, a new "Where on Earth...?" mystery will appear as the MISR "image of the week" approximately once per month. A new image of the week is released every Wednesday at noon Pacific time on the MISR home page, http://www-misr.jpl.nasa.gov. The image also appears on the Earth Observatory, http://earthobservatory.nasa.gov/, and on the Atmospheric Sciences Data Center home page, http://eosweb.larc.nasa.gov/, though usually with a several-hour delay.

MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technology.

Image credit: NASA/GSFC/LaRC/JPL, MISR Team.