Storms, Thematic Mapping, and KML - by Robert Innis - Presentation Transcript
Storms,
Thematic Mapping
Storms,
Thematic Mapping
and KML
Dammit Jim, I’m a graphic designer, not a statistician.
This presentation is biased.
It’s an idea about connecting long term data to our locale using KML.
What makes a storm?
What makes a storm?
a clash of forces (cold and warm fronts, wind currents, moisture levels)
indications can be seen from a distance
drop rain, snow, lightning, hail (harbinger of doom or bounty)
[we’ll come back to this subject in a minute]
What is a thematic map?
What is a thematic map?
a simple map made to reflect a particular theme about a geographic area.
Thematic maps can portray physical, social, political, cultural, economic, sociological,
agricultural, or any other aspects of a city, state, region, nation, or continent.
choropleth maps - shaded polygon maps; used to portray data collected for
already defined units, such as states or countries or statistical reporting units;
most common
isarithmic maps - maps that depict smooth continuous phenomena such as precipitation or
ocean currents
dasymetric symbols - data that pertains to particular geographic areas and incorporates
ancillary data
water use choropleth map
hardiness zone dasymetric maps
Thematic Mapping and KML
Thematic Mapping and KML
Keyhole Markup Language (KML) is an XML-based language schema for expressing
geographic annotation and visualization for use in 2D and 3D Earth Browsers.
KML was developed for use with Google Earth, which was originally Keyhole Earth
Viewer, created by Keyhole, Inc, and acquired by Google in 2004. The name
\"Keyhole\" is a homage to the KH reconnaissance satellites, the original eye-in-
the-sky military reconnaissance system first launched in 1976.
Who is Bjørn Sandvik?
Who is Bjørn Sandvik?
While a student of Geographic Information Systems at the University of
Edinburgh,
he wrote a dissertation, Using KML for Thematic Mapping.
He then created thematicmapping.org, an online mapping engine that generates a kmz file from
UN data.
He’s a project manager at United Nations Association (UNA) of Norway.
He sounds like a really nice guy.
<Folder>
<name>1987</name>
<TimeSpan>
<begin>1987</begin>
<end>1987-12-31</end>
creating a timespan for the folder </TimeSpan>
<Placemark>
<name>Santa Fe</name>
<Snippet maxLines=\"2\">186572 (1987)</Snippet>
<styleUrl>#sharedStyle</styleUrl>
<Model id=\"model_1595\">
<altitudeMode>relativeToGround</altitudeMode>
<Location>
<longitude>-105.9465104642608</longitude>
<latitude>35.36</latitude>
<altitude>1000</altitude>
</Location>
<Orientation>
name is what it means <heading>0</heading>
<tilt>0</tilt>
<roll>0</roll>
</Orientation>
<Scale>
<x>1865.72</x>
<y>1865.72</y>
KML is kinda
<z>1865.72</z>
</Scale>
<Link>
<href>sphere.dae</href>
</Link>
<ResourceMap>
</ResourceMap>
</Model>
</Placemark>
</Folder>
altitude can be absolute, relativeToSeaFloor, or
relativeToGround
<Folder>
<name>1987</name>
<TimeSpan>
<begin>1987</begin>
<end>1987-12-31</end>
</TimeSpan>
<Placemark>
<name>Santa Fe</name>
<Snippet maxLines=\"2\">186572 (1987)</Snippet>
<styleUrl>#sharedStyle</styleUrl>
<Model id=\"model_1595\">
<altitudeMode>relativeToGround</altitudeMode>
<Location>
<longitude>-105.9465104642608</longitude>
<latitude>35.36</latitude>
<altitude>1000</altitude>
</Location>
<Orientation>
<heading>0</heading>
<tilt>0</tilt>
<roll>0</roll>
</Orientation>
<Scale>
<x>1865.72</x>
<y>1865.72</y>
KML is XML-
<z>1865.72</z>
</Scale>
<Link>
<href>sphere.dae</href>
</Link>
<ResourceMap>
</ResourceMap>
</Model>
</Placemark>
</Folder>
longitude, latitude of Santa Fe
Scale–controls the scale of the Collada shape,
which is...
Collada (universal interchange format for 3D
files)sphere.dae
Proportional of infant mortality rates
Prism map scale map of populations
Bar map ofmap of fertility per capita
Prism internet users rates
Data Aggravation Data Localization
vs.
Since 1984 the Consumer Price Index (CPI) has undergone significant “opportunistic adjustments”
to make sure the rate of inflation does not appear too great. –
”False Statistics in the CPI” Harpers, Aug. 2008; see also the Pollyanna Eect
Census Data data is collected every 7 years and the in-between years are extrapolated up or down.
Gross Domestic Product (GDP) does not include the health, culture, and welfare of people.
vs.
Local experts collecting data locally.
Reinforcing the fact that an entire local population is involved.
Economic reactions and preparedness are more eective when derived from the
local level.
Posting it like a local forecast above our heads reinforces the immediacy of the data.
What if...
What if...
we learned to watch the skies
how can we make complex subjects more tangible?
1. make it personal: hang a black cloud above everyone's head so they may tend to act more locally
2. make it visible and geographically relevant -
use Google Earth so people will recognize their surroundings (and it’s 3D!!)
What if...
we learned to watch the skies
how can we make complex subjects more tangible?
1. make it personal: hang a black cloud above everyone's head so they may tend to act more locally
2. make it visible and geographically relevant -
use Google Earth so people will recognize their surroundings (and it’s 3D!!)
What if...
we learned to watch the skies
how can we make complex subjects more tangible?
1. make it personal: hang a black cloud above everyone's head so they may tend to act more locally
2. make it visible and geographically relevant -
use Google Earth so people will recognize their surroundings (and it’s 3D!!)
3. compress the timeline - put long-term data into a format that can be immediately recognizable
4. pick the data cross/storm
yes this is the biased part, but hey it's just an idea
which brings us back
to the subject of storms...
which brings us back
to the subject of storms... location.
and
it’s in our nature to watch the skies
each geography has dierent topography
longer distances to watch the approach, and more response time, but fewer areas of shelter
what a storm brings to the mountains/plains/high desert environment may dictate dierent responses;
storms bringing bountiful rain, but lightning on the plain you may want to avoid
Google Earth and the weather layer – Rain may be welcome to New Mexico,
but can cause flooding along the Mississippi River.
retail space per capita
vs.
personal savings per capita
retail space per capita
vs.
personal savings per capita
total hours worked
full-time and part-time
(in millions of hours)
total hours worked
full-time and part-time
(in millions of hours)
Personal debt as a percentage of
disposable personal income
Personal debt as a percentage of
disposable personal income
Credits
en.wikipedia.org
www.thematicmapping.org
www.galisteobasinphotoproject.com
Greg Mac Gregor: Galiseo Storm, Highway 41.
Guitar Solo 1, Neil Young, Dead Man Soundtrack (an awesome film by Jim Jarmusch
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