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ACSM Bulletin | February 2006 | #219      

EDITORIAL

2006 In Full View by Ilse Genovese It's customary, when a magazine enters a new year, to draw readers' attention to what they can expect to see written on its pages. The editorial calendar we produce for each successive volume of the ACSM Bulletin has all the details, and everybody who wants to be part of the magazine in 2006—either as a contributor or advertiser—can access it online at www.acsmcongress.org and www.acsm.net. <<more>>

FEATURES

		Treasures of NOAA's Ark by Ilse Genovese Close your eyes and imagine a cavernous warehouse with all kinds of crates and cases strategically positioned for maximum effect and unique, old measurement instruments sitting on top of them. You are in NOAA's ark of treasures, a display of scientific ingenuity and loving care. < <more>>
		The Transcontinental Arc: Part 1 by Captain Charles A. Burroughs Unlike the 1804-06 Corps of Discovery led by Lewis & Clark, which set out to map the little known land along the route of the Missouri River to the northwest part of the country, the U.S. Coast Survey's Transcontinental Triangulation along the 39th parallel was more utilitarian in its purpose. Through painstaking determinations of latitude and longitude of recoverable survey markers along its route, the triangulation would provide a basic framework for all such future works by establishing primary control points for engineers and surveyors alike. <<more>>

		Climate Concerns by Ilse Genovese The debate is no longer whether climate change is imminent, but when it will no longer be reversible. Scientists remain uncertain when such a point might occur, but calls for policy makers to cut global carbon idoxide emissions in half over the next 50 years are intensifying. Three specific events are especially worrisome as they could trigger climate changes that would be irreversible. Widespread corral bleaching is one of them, predicted to seriously damage the world's fisheries within three decades. <<more>>
		Geodesy? What's That? Part 13: A New Frontier by Irene K. Fischer After the exciting GEOP Conference in Boulder, August 1973, which had introduced me to the dispute between geodesists and oceanographers, there had been more informal communications between several of the participants. I had studied R. B. Montgomery's papers more closely and also begun to read various oceanographic textbooks in an attempt to understand the concepts and assumptions underlying oceanographic leveling and sea level slopes. With my bias as a geometry teacher, I felt that before even beginning to quarrel about whether a slope (of mean sea level or anything else) goes up or down, one had to make sure that the slope was defined as taken with respect to the very same reference line (surface) in both cases. <<more>>