Geography is the confluence of geophysics and sociology.
In the olden days, an observent traveler could visit far off places,
return home, and make useful contributions by describing seashores,
lakes, rivers, mountain ranges, flora and fauna, and the peoples of
the region. S/he might even note the impact of environmental context
on social constructs.
Each of these fields has now become so sophisticated that it takes a
team to reach useful conclusions.
- Start with Astronomy to establish the
elements, the solar system, and the Earth/Moon system.
- Add earth sciences for plate techtonics and thus continents,
mountains, and ocean depths. (dutch1998)
- Add fluid dynamic modeling of the oceans and the
- Add biology.
- Add humans, and the history of how they got
where they are today, with the cultures observed today.
At this point we can review what (atlases), how (GIS), and
These can be confusing. It would seem that a map of the US is a
"larger scale" than a map of my neighborhood, but it is just the
reverse. Here's why:
- Let's assume a map is sized for a human to handled and examine
-- e.g., 3ft X 3ft or 1m x 1m.
- On that map is a scale -- a ruler representing distances.
- Imagine this experiment: Cut the scale out with scissors, carry
it to the real world place shown by the map, and lay the scale on the
ground. From a space craft, take a picture of the whole map area.
- If the scale is really really small in the photo, you have a
small scale map. If it is bigger, or even visible to the naked eye on
the photo, you have large scale map.
A boat's fully lofted plan is 1:1 scale and thus large scale. A
floorplan of an office buildign is smaller scale than the boat loft,
but larger scale than a city map. A city map is larger scale than
a world map.
Adding to the confusion, the "map scale" ratio numer gets bigger as
the scale gets smaller. From bolstad2005, p115:
Error due to 1mm mistake on map
|Map scale ||Error in m ||Error in ft ||Comment |
|1:24,000 ||24 ||79 ||large scale|
|1:100,000 ||100 ||328 ||...|
|1:1,000,000 ||1,000 ||3,281 ||small scale|
Given 3D location on Earth's surface, what is useful to capture and
convey in a map? That depends on the map's purpose.
A high quality world atlas (e.g., oxfordatlas)
provides an overview of landforms, water systems, climate, flora, and
human-generated structures. This is the place to go when, say, you
hear that your government is intending to bomb country X. Where is X,
what is nearby, and what minerals are found there?
Topological maps (e.g.,
on elevation and water systems.
Nautical charts (e.g.,
provide details about what is important to navigation -- esp how to
safely leave and approach landfall.
Specialized maps may show minerals deposits, soild types, powerlines,
sewer systems, population density of red-headed left-handers, etc.
In the olden days, maps were drawn from field notes and triangulated
on-site surveys. These days aircraft, spacecraft, GPS, and computers
give us an extrodinary understanding of the physical landscape -- from
the overall shape of the Earth, to meter-by-meter elevations, to
dominant flora, to manmade structures. We then add additional
knowledge from databases to make maps. THis is all made possible by
See bolstad2005 to get into the game. Then obtain
software packages to become productive in the field. As with all
other fields, I use OSS packages, with Python bindings. See:
Why do we care about distant lands, and why do the folks there behave
as they do? See Creation_Myth for my understanding of
why we care, and see History for context for why
"they" behave so oddly (of course they think the tourist is rather odd
In this day of homogenized, MacWorld, globalization, it is refreshing
to read accounts of first encounters (or even relatively naive
encounters) among cultures. See Marco Polo, Magellan, Lewis & Clark,
Joshua Slocum, Richard Burton, Richard Halliburton, and now Rick
Steves. People who had the gumption to go see for themselves and then
tell the rest of us what they found.
I have tackled several. In each I tried to:
- Read a tourist guidebook. Travel options, lodging,
food customs, which hand to use, a few key phrases, a bit of history,
key sights to see.
- Read an "official" history. Typically covers geology, biology,
archeology, kings-and-wars history, a bit about common life.
- Read an alternate history. For US think Zinn's "Peoples History
of the US". Looking for the cultural/social memes and themes that add insight
and balance to the official history.
- Watch a lot of movies (10-50) of/by/about that culture.
Subtitles of course. Watch for background (literally) information --
"So that is how you make a bullock cart. And there is a banquet,
using banana leaves for plates." Look for social themes and
relationships -- "The wife stays covered except inside the home.
Boyfriend/girfriend can go for a walk together, if attended by an
auntie". Listen for music and flow of conversation.
- Read a few books in translation. Usually award winners, maybe
caused a furor in the home country. Books are much deeper than
movies, and give context for movies.
- Time permitting, study the typical language(s). Work up to
reading classic texts and (for living languages) reading news
- Time and funds permitting, visit the land.
- Japan (haven't written it up)
- Korea (haven't written it up)
- Denmark (haven't written it up; did visit)
Paul Bolstad. "GIS Fundamentals: A First Text on Geographical
Information Systems", 2nd ed. Eider Press, 2005. ISBN
It may be called "first text", but is a serious treatise on the
relevant physics, math, nomenclature, techniques (several
technological generations), and available resources.
Steven Dutch, James Monroe, Joseph Moran. "Earth Science".
West/Wadsworth, 1998. ISBN 0-314-20111-4.
Undergrad treatment, from plate techtonics to weather. No one
(currently) knows what exactly happens in the core, or can predict
surface events (such as earthquakes) from first principles. To even
attempt to do so is a post-doc problem.
Oxford University. "Oxford Atlas of the World", 13th ed. Oxford
University Press, 2006. ISBN 978-0-19-531321-5.
Standard world atlas format, but exceptionally well done.
Geoffrey K. Vallis. "Atmospheric and Oceanic Fluid Dynamics:
Fundamentals and Large-Scale Circulation". Cambridge University
Press, 2006. ISBN 978-0-521-84969-2.
Physical and mathematical basis for modeling oceanic currents and