By Mark Monmonier
Within the subsequent century, sea degrees are anticipated to upward push at extraordinary charges, inflicting flooding around the globe, from the islands of Malaysia and the canals of Venice to the coasts of Florida and California. those emerging water degrees pose severe demanding situations to all features of coastal existence—chiefly fiscal, residential, and environmental—as good as to the cartographic definition and mapping of coasts. it truly is this side of coastal existence that Mark Monmonier tackles in Coast traces. surroundings sail on a trip throughout moving landscapes, cartographic know-how, and weather switch, Monmonier unearths that coastlines are as a lot a suite of principles, assumptions, and societal ideals as they're good black traces on maps.Whether for crusing charts or estate maps, Monmonier indicates, coastlines problem mapmakers to catch on paper a hugely abnormal land-water boundary perturbed through tides and storms and complex through rocks, wrecks, and shoals. Coast traces is peppered with attractive anecdotes concerning the tricky attempt to expunge fictitious islands from nautical charts, the difficult dimension of a coastline’s size, and the contentious notions of beachfront estate and public access.Combing maritime heritage and the background of expertise, Coast strains charts the historic development from offshore sketches to satellite tv for pc pictures and explores the societal impression of coastal cartography on every little thing from international warming to fatherland safety. Returning to the shape of his celebrated Air obvious, Monmonier ably renders the subject of coastal cartography available to either normal readers and historians of technology, expertise, and maritime reports. within the post-Katrina period, while the map of complete areas should be redrawn via a unmarried typical occasion, the problems he increases are extra vital than ever.
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Additional info for Coast Lines: How Mapmakers Frame the World and Chart Environmental Change
33 At least that’s my impression after comparing Morison’s excerpt from the offending chart with the coastline portrayed on relatively recent Central Intelligence Agency maps of Haiti and the Dominican Republic. 5. Columbus’s sketch of the coastline superimposed on a shoreline traced from Central Intelligence Agency maps of Haiti and the Dominican Republic published at 1:1,000,000 in 1994 and 1971, respectively. 4, was rotated and scaled for a close visual ﬁt. Place names are from the Columbus drawing.
V stands for “velocity hazard,” a warning that the unwary buyer risks losing the lot as well as the house to brutal waves. To compensate, the Federal Emergency Management Agency (FEMA), which assesses risk, set a higher base elevation (sixteen feet, rather than ten) for the east side of Crow Island. 39 Some alteration of Little Crow Island’s flood-hazard shoreline seems inevitable. The following chapter emphasizes the difficulty of plotting the first coastline from offshore and the complications arising from a vague at best sense of one’s longitude.
If it lost only twelve minutes since you set sail six months ago—a little less than four seconds a day—your longitude would be off by 3 degrees. Columbus was unaware of time’s value as a surrogate. 39 Forced to rely on latitude as their primary signpost, Columbus and later explorers resorted to parallel sailing—heading due north or due south to the parallel of latitude through their destination, and then sailing east or west to their objective. 6. Willem Janszoon Blaeu’s 1606 world map. Original map measures 12 by 18 inches (30 by 45 cm), including an elaborate border removed in this view.