I found this page on the web site of the USGS. The link to it is
   http://coastal.er.usgs.gov/soundwaves/2000/03/outreach2.html
and it appears to be an in-house memo. Since it is short, I'll reproduce
the text below.

Jim

English and Metric Units and the Press

By Helen Gibbons and Carolyn Degnan
March 2000

The crash of Alaska Airlines Flight 261 off Southern California brought
a flurry of inquiries to WR CMG, among them a request from a newspaper
reporter for a seafloor map of the crash site. The USGS has never mapped
in the specific area of the crash site, but our data-management group
has a lot of expertise in custom making maps from existing databases.

Carolyn Degnan and Michael Hamer used USGS DEM (digital-elevation model)
data to construct a shaded-relief view of the land and NOAA hydrographic
data to construct a bathymetric map of the sea floor. Within a few
hours, the reporter had a digital file for the newspaper's graphic
artists to modify as needed.

Unfortunately, the newspaper staff overlooked the word "meters" in the
map legend and added "feet" to contour labels without changing the
numbers. Observant readers would notice that, although the crash debris
was reported to be resting at a depth of about 700 ft, the published map
made it appear to be at a depth of about 200 ft.

Another newspaper made a similar error, taking numbers off a published
USGS topographic map and assuming that the offshore contours were, like
the onshore contours, in feet. In fact, a key on the map showed that the
offshore contours were in fathoms.

As one reporter commented when this error was brought to his attention,
"It never occurred to me that they would use one unit [feet] on land and
another [fathoms] at sea on the same map. It makes it easier to
understand what happened with the Mars probe." The moral of the story:
ask reporters what units they want, and tell them in a cover letter what
units they are
getting (don't rely on the map labels).

-- 
Metric Methods(SM)           "Don't be late to metricate!"
James R. Frysinger, CAMS     http://www.metricmethods.com/
10 Captiva Row               e-mail: [EMAIL PROTECTED]
Charleston, SC 29407         phone/FAX:  843.225.6789

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