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Noxon Cliff: Antarctica
SOURCE: National Geospatial-Intelligence Agency, Bethesda, MD, USA
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This page presents the geographical name data for Noxon Cliff in Antarctica, as supplied by the US military intelligence in electronic format, including the geographic coordinates and place name in various forms, latin, roman and native characters, and its location in its respective country's administrative division.

Feature Name (see definition): Noxon Cliff

Feature Class (see definition): Cliff

Country Code (see definition): AQ (Antarctica)

Feature ID (see definition): 17406

Primary Latitude in degrees, minutes, and seconds (see definition):
77° 32' 00" S

Primary Longitude in degrees, minutes, and seconds (see definition):
163° 05' 00" E

Primary Latitude in decimal degrees (see definition): -77.5333333

Primary Longitude in decimal degrees (see definition): 163.0833333

Elevation (see definition): No data

Decision Year (see definition): 01/01/1997

Description (see definition): An E-W trending cliff at the S end of Flint Ridge in Asgard Range, Victoria Land. The cliff encloses the N flank of Commonwealth Glacier where it rises from 50 to 150 m above the glacier. Named by Advisory Committee on Antarctic Names (US-ACAN) (1997) after John F. Noxon, who pioneered the technique of visible spectroscopy for measurements of stratospheric trace gases, particularly nitrogen dioxide. By 1975, he began making measurements of nitrogen dioxide column as a function of latitude, and was surprised to discover an abrupt decrease in the amounts in Arctic air as compared to values observed at lower latitudes. This unexpected phenomenon, width implications for later ozone depletion studies, became known as the "Noxon cliff". In 1978, Noxon sailed on RV Hero from Ushuaia, and quickly confirmed that a "cliff" in nitrogen dioxide is also found in the Antarctic atmosphere.

Date Created (see definition): 09/24/1998

Date Edited (see definition): No data

NOTE: The information regarding Noxon Cliff in Antarctica on this page is published from the data supplied by the National Geospatial-Intelligence Agency, a member of the Intelligence community of the Antarctica, and a Department of Defense (DoD) Combat Support Agency. No claims are made regarding the accuracy of information contained here. All suggestions for corrections of any errors about Noxon Cliff should be addressed to the National Geospatial-Intelligence Agency.

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