Transcript

If y

ou

were

to

ask 1

00

peo

ple

wh

at

too

ls g

eo

gra

ph

ers

use t

o s

tud

y t

he e

art

h,

on

e o

f th

e fi

rst

an

sw

ers

yo

u w

ill

un

do

ub

ted

ly h

ear

will

be “

map

s.”

!A

nd

it

is t

rue t

hat

map

s

are

on

e o

f th

e m

ost

co

mm

on

to

ols

used

to

an

sw

er

geo

gra

ph

ic q

uestio

ns. !A

map

is a

vis

ual re

pre

sen

tatio

n o

f

the e

art

h,

or

part

s o

f th

e E

art

h a

nd

can

sh

ow

case a

variety

of

sp

ati

al sc

ale

s.

Wh

at

are

th

ose s

patial

scale

s?

!Yo

u c

an

rep

resen

t a

very

sm

all

po

rtio

n o

f th

e m

ap

with

gre

at

deta

ils.

Belo

w is a

n

em

bed

ded

map

fro

m G

oo

gle

. !It

is s

et

to a

city in

No

rth

ern

Mic

hig

an

at

the

larg

est

scale

th

at

that

part

icu

lar

map

can

go

to

. !T

ake a

mo

men

t to

exp

lore

that

map

at

diff

ere

nt

scale

s a

nd

th

en

co

mp

lete

th

e G

oo

gle

Drive jo

urn

al

activity lo

cate

d h

ere

.

Se

cti

on

3

QU

ES

TIO

NS

TO

GU

IDE

IN

QU

IRY

1.

Wh

at

is g

eo

gra

ph

y?

2.

Wh

y d

o w

e s

tud

y

ge

og

rap

hy?

3.

Wh

at

too

ls d

o

ge

og

rap

he

rs u

se

?

4.

Wh

at

is g

eo

gra

ph

ic

inq

uir

y?

5.

Wh

y d

o w

e n

ee

d t

o

thin

k g

lob

ally?

Wh

at

To

ols

Do

Ge

og

rap

he

rs U

se

to

Stu

dy t

he

Ea

rth

?

14

us

us

un

un

ar

ar

ge

ge

thth of

of

sc

sc

ve

ve

wi

wi

Inte

rac

tive

1.5

Go

og

le

Maapp

ss

Inte

rac

tive

1.4

Go

og

le

Drive J

ou

rnal A

ctivityy

Refe

r to

th

is h

an

do

ut

tog

eth

er

with

th

e G

oo

gle

Map

s w

idg

et.

A N

ote

On

Sc

ale

:

Th

e m

ap

ac

tivit

y o

n t

his

pa

ge

is

se

t to

fo

cu

s o

n a

cit

y in

No

rth

ern

Mic

hig

an

at

the

mo

st

zo

om

ed

-in

sc

ale

. T

his

is c

alle

d t

he

la

rge

st

sc

ale

be

ca

use

ob

jec

ts lik

e

bu

ild

ing

s a

nd

ro

ad

s a

re s

ho

wn

at

the

ir la

rge

st

siz

e.

At

a m

ore

zo

om

ed

-ou

t sc

ale

, o

bje

cts

lik

e

bu

ild

ing

s a

nd

ro

ad

s m

ay b

e s

o

sm

all t

ha

t w

e c

an

no

t se

e t

he

m.

Ma

ps M

ap

s a

re a

ble

to

sh

ow

in

form

atio

n a

bo

ut

geo

gra

ph

ic a

reas.

Every

map

has a

t le

ast

on

e p

urp

ose. !T

hey c

an

rep

resen

t a p

lace

su

ch

as a

neig

hb

orh

oo

d,

a t

ow

n,

a c

ou

ntr

y, o

r th

e w

orld

overa

ll.

So

metim

es t

hey c

an

sh

ow

hu

man

featu

res. !In

th

e v

ery

firs

t m

ap

yo

u lo

oked

at

in t

he G

oo

gle

Map

s lin

k a

bo

ve,

wh

at

hu

man

ch

ara

cte

ristics s

uch

as r

oad

s,

bu

ildin

gs,

etc

. w

ere

yo

u a

ble

to

see?

!W

hen

yo

u z

oo

med

all

the w

ay o

ut,

were

yo

u s

till

ab

le t

o s

ee

an

y h

um

an

ch

ara

cte

ristics?

Wh

en

yo

ur

pare

nts

were

yo

un

ger, t

hey p

rob

ab

ly w

en

t o

n a

trip

with

th

eir f

am

ilies w

hic

h in

vo

lved

usin

g a

map

of

a s

tate

or

reg

ion

to

get

to t

heir fi

nal d

estin

atio

n. !M

od

ern

tech

no

log

y s

uch

as s

mart

ph

on

es h

ave G

PS

bu

ilt in

wh

ich

has m

ad

e t

hese t

wo

dim

en

sio

nal m

ap

s o

bso

lete

fo

r th

at

pu

rpo

se. !A

ro

ad

trip

is n

ot

the o

nly

use f

or

a m

ap

of

a c

ity o

r a s

tate

, h

ow

ever. !

Map

s c

an

rep

resen

t a v

ariety

of

diff

ere

nt

featu

res a

bo

ut

a p

lace. !T

here

is a

sm

all

pro

ble

m w

ith

map

s h

ow

ever…

If y

ou

were

to

take a

ballo

on

an

d in

flate

it,

th

en

dra

w a

map

of

the w

orld

on

it,

yo

u c

ou

ld,

if y

ou

were

care

ful, g

et

a v

ery

clo

se

ap

pro

xim

atio

n o

f w

hat

the w

orld

overa

ll lo

oks lik

e. !If

yo

u w

ere

extr

em

ely

care

ful yo

u c

ou

ld

rep

resen

t th

e c

on

tin

en

ts o

f th

e

eart

h d

raw

n t

o a

pre

cis

e s

cale

d

siz

e. !T

his

is b

ecau

se a

ballo

on

is a

rou

nd

, th

ree-d

imen

sio

nal o

bje

ct.

!A

map

, h

ow

ever, is a

tw

o-d

imen

sio

nal

ob

ject.

!If y

ou

were

to

po

p t

hat

ballo

on

(m

uch

lik

e p

eelin

g t

he

ora

ng

e in

th

e v

ideo

ab

ove) w

hat

yo

u a

re left

with

is a

mu

ch

less

usefu

l re

pre

sen

tatio

n o

f th

e e

art

h.

In

an

att

em

pt

to r

ep

resen

t a t

hre

e d

imen

sio

nal o

bje

ct

in t

wo

dim

en

sio

ns,

map

makers

, kn

ow

n a

s c

art

og

rap

hers

, h

ave c

reate

d

diff

ere

nt

ways t

o r

ep

resen

t th

e e

art

h. !T

hese a

re k

no

wn

as m

ap

pro

jectio

ns. !T

here

are

hu

nd

red

s o

f d

iffere

nt

typ

es o

f p

roje

ctio

ns

an

d e

ach

has p

lusses a

nd

min

uses in

its

usag

e.

15

al

Inte

rac

tive

1.7

Map

P

roje

ctio

ns V

ideo

Learn

mo

re a

bo

ut

map

pro

jectio

ns

with

th

is v

ideo

. (R

eq

uires in

tern

et

co

nn

ectio

n)

Inte

rac

tive

1.6

Th

e O

ran

ge

Ta

ke t

his

map

fo

r

exam

ple

. !T

his

is k

no

wn

as a

Merc

ato

r p

roje

ctio

n.

!A M

erc

ato

r p

roje

ctio

n

wo

uld

be a

n e

xcelle

nt

map

fo

r a n

avig

ato

r o

n a

sh

ip. !In

fact,

th

is k

ind

of

map

was e

xtr

em

ely

usefu

l

in n

avig

atio

n. !O

ne o

f th

e

pro

ble

ms w

ith

th

is m

ap

is

the d

isto

rtio

n o

f siz

e. !If

yo

u lo

ok a

t G

reen

lan

d o

n t

his

map

, it a

pp

ears

to

be h

ug

e.

!Au

str

alia

, th

e s

mall

co

ntin

en

t in

th

e b

ott

om

rig

ht

han

d p

ort

ion

of

the m

ap

, lo

oks lik

e it

is m

uch

sm

alle

r th

an

Gre

en

lan

d. !In

actu

alit

y

ho

wever, G

reen

lan

d is m

uch

sm

alle

r. !

An

tarc

tica a

lmo

st

ap

pears

to b

e a

s larg

e a

s t

he r

est

of

the c

on

tin

en

ts t

og

eth

er. !S

o,

wh

ile a

Merc

ato

r P

roje

ctio

n is a

gre

at

map

fo

r u

se in

navig

atio

n,

it d

oes

no

t p

roje

ct

the w

orld

as it

is d

ue t

o t

he d

isto

rted

siz

e o

f cert

ain

are

as.

An

oth

er

well

kn

ow

n m

ap

pro

jectio

n is k

no

wn

as a

Gall-

Pete

rs

Pro

jectio

n,

or

mo

re c

om

mo

nly

, a P

ete

rs P

roje

ctio

n. !T

here

is a

gre

at

co

ntr

overs

y s

urr

ou

nd

ing

th

e o

rig

ins o

f th

is m

ap

, w

hic

h y

ou

mig

ht

wan

t to

take a

few

min

ute

s t

o lo

ok u

p in

th

e f

utu

re. !In

a

pro

jectio

n s

uch

as t

he o

ne a

bo

ve,

part

s o

f th

e w

orld

are

rep

resen

ted

clo

ser

to

their a

ctu

al

scale

s. !If,

ho

wever,

yo

u

co

mp

are

this

map

to

the M

erc

ato

r

pro

jectio

n,

wh

at

do

yo

u

no

tice a

bo

ut

the s

hap

e o

f la

nd

masses?

!T

here

is a

dis

tin

ct

dis

tort

ion

so

mew

here

on

the m

ap

.

Th

e n

ext

pro

jectio

n w

e

will

take a

lo

ok

at

is k

no

wn

as

a R

ob

inso

n

Pro

jectio

n.

!Gen

era

lly

sp

eakin

g,

a

Ro

bin

so

n

pro

jectio

n is a

n a

ttem

pt

to c

om

pro

mis

e a

nd

sh

ow

th

e

lan

dm

asses a

s c

lose t

o t

heir n

atu

ral siz

e a

nd

sh

ap

e a

s p

ossib

le 1

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ex

as

as A

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wo

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sh

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g

on

a t

wo

dim

en

sio

nal re

pre

sen

tatio

n. !It

too

, h

ow

ever, s

uff

ers

fro

m d

isto

rtio

n. !In

th

is c

ase,

mu

ch

of

the w

orld

is s

ho

wn

as c

lose

to s

cale

as p

ossib

le,

bu

t as y

ou

mo

ve t

ow

ard

th

e t

op

an

d b

ott

om

of

the m

ap

, w

hat

do

yo

u n

otice h

ap

pen

ing

?

No

w,

thin

k b

ack t

o t

he v

ideo

yo

u w

atc

hed

at

the b

eg

inn

ing

ab

ou

t

the o

ran

ge. !A

no

ther

pro

jectio

n is k

no

wn

as t

he G

oo

de

Ho

mo

losin

e P

roje

ctio

n,

mo

re c

om

mo

nly

kn

ow

n a

s a

n In

terr

up

ted

Pro

jectio

n. !In

th

is p

roje

ctio

n t

yp

e,

there

is v

ery

little d

isto

rtio

n in

term

s o

f siz

e o

f co

ntin

en

ts,

ho

wever

it is v

ery

diffi

cu

lt t

o c

alc

ula

te

dis

tan

ces o

n a

map

su

ch

as t

his

. !If

yo

u w

ere

takin

g a

pla

ne r

ide

fro

m N

ew

Yo

rk t

o L

on

do

n,

it w

ou

ld b

e d

ifficu

lt t

o fi

gu

re o

ut

the

exact

dis

tan

ce if

this

were

th

e o

nly

map

availa

ble

to

yo

u.

Belo

w is a

galle

ry o

f m

an

y d

iffere

nt

map

pro

jectio

ns. !A

s y

ou

flip

thro

ug

h t

he g

alle

ry,

thin

k a

bo

ut

ho

w e

ach

map

mig

ht

be u

sefu

l,

an

d w

hat

the d

isad

van

tag

es o

f th

e m

ap

mig

ht

be. !

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Ga

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Map

Pro

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ns

So

, yes..

.map

s a

re o

ne o

f th

e m

an

y t

oo

ls t

hat

geo

gra

ph

ers

use t

o

stu

dy t

he e

art

h. !B

ut

wh

at

are

so

me o

f th

e o

thers

?

Ae

ria

l P

ho

tog

rap

hs a

nd

Sa

tellit

e I

ma

ge

ry

Wh

en

yo

u lo

ok a

t th

e im

ag

e a

bo

ve,

wh

at

do

yo

u s

ee?

!T

his

is a

sate

llite

im

ag

e c

ap

ture

d o

f th

e U

nited

Sta

tes. !T

he “

go

ld”

on

th

e

map

rep

resen

ts c

ity lig

hts

, w

hic

h in

tu

rn c

an

help

so

meo

ne

stu

dyin

g t

his

im

ag

e u

nd

ers

tan

d w

here

so

me o

f th

e m

ajo

r

metr

op

olit

an

are

as a

re in

th

e U

nited

Sta

tes. !Y

ou

will

no

tice t

hat

on

e p

ort

ion

of

the U

nited

Sta

tes s

eem

s t

o h

ave a

lo

t o

f

these lig

hts

, w

hile

larg

e p

ort

ion

s o

f th

e W

este

rn h

alf o

f th

e

Un

ited

Sta

tes a

re m

uch

sp

ott

ier. !

A “

wh

y”

qu

estio

n a

geo

gra

ph

er

mig

ht

ask a

bo

ut

this

wo

uld

be:

“W

hy a

re t

here

mo

re larg

e u

rban

are

as o

n t

he e

aste

rn h

alf o

f th

e U

nited

Sta

tes

than

th

e w

este

rn h

alf?

” !B

y lo

okin

g a

t th

is im

ag

e,

geo

gra

ph

ers

mig

ht

then

lo

ok a

t m

ap

s a

nd

oth

er

aerial p

ho

tog

rap

hs t

o g

et

an

an

sw

er

to t

his

qu

estio

n. !

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A s

ate

llite

im

ag

e h

as m

an

y p

urp

oses a

nd

can

be h

elp

ful at

a

variety

of

sp

atial scale

s f

rom

larg

e t

o s

mall.

!A

n a

erial p

ho

tog

rap

h

is s

imila

r to

th

is,

bu

t is

gen

era

lly s

peakin

g a

t a larg

er. !

Th

e a

erial

ph

oto

gra

ph

th

at

sh

ow

s W

ash

ing

ton

, D

C,

sh

ow

s a

zo

om

ed

-in

vie

w o

f a c

ity a

t a larg

er

scale

in

wh

ich

we c

an

see in

div

idu

al

bu

ildin

gs a

nd

str

eets

. A

pic

ture

lik

e t

his

on

e m

igh

t h

elp

so

meo

ne

stu

dy p

att

ern

s o

f d

evelo

pm

en

t fo

r n

eig

hb

orh

oo

d p

lan

nin

g. !It

co

uld

be u

sefu

l in

su

rveyin

g !an

are

a f

or

a p

ote

ntial b

uild

ing

pro

ject.

!O

ther

aerial p

ho

tog

rap

hs c

ou

ld b

e u

sefu

l in

dete

rmin

ing

locatio

n o

f fa

rmla

nd

, w

here

irr

igatio

n s

yste

ms c

ou

ld b

e c

reate

d,

am

on

g m

an

y o

ther

thin

gs. !B

oth

of

these t

oo

ls a

re u

sefu

l fo

r

geo

gra

ph

ers

in

an

sw

erin

g t

heir “

wh

y”

an

d “

wh

ere

” q

uestio

ns. !

GP

S (

Glo

ba

l P

osit

ion

ing

Syste

ms)

Do

yo

ur

pare

nts

have a

sm

art

ph

on

e t

hey s

om

etim

es u

se t

o

get

directio

ns t

o p

laces t

hey h

ave n

ever

been

? !

Wh

at

ab

ou

t yo

u?

Glo

bal P

ositio

nin

g

Syste

ms (co

mm

on

ly

refe

rred

to

as G

PS

)

make u

se o

f sate

llite

s in

orb

it t

o c

olle

ct

info

rmatio

n a

bo

ut

wh

ere

the u

ser

is o

n t

he e

art

h.

Yo

ur

GP

S d

evic

e,

be it

a p

ho

ne o

r a

co

mm

erc

ially

availa

ble

sta

nd

-alo

ne u

nit,

sen

ds in

form

atio

n u

p in

to t

he s

ky w

here

it

co

nn

ects

with

a s

ate

llite

, w

hic

h t

hen

dete

rmin

es y

ou

r p

ositio

n o

n

the p

lan

et.

!T

his

in

form

atio

n is t

hen

rela

yed

back t

o t

he u

ser

an

d

dis

pla

yed

on

a m

ap

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sid

e f

rom

ju

st

locatin

g y

ou

rself o

n a

map

,

ho

w m

igh

t G

PS

be a

usefu

l to

ol fo

r g

eo

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ph

ers

?

GIS

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ph

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nfo

rma

tio

n S

yste

m)

A g

eo

gra

ph

ic in

form

atio

n s

yste

m,

co

mm

on

ly r

efe

rred

to

as G

IS

utiliz

es s

oft

ware

an

d h

ard

ware

to

co

llect

an

d d

isp

lay d

ata

. !It

can

help

yo

u d

isp

lay f

orm

s o

f in

form

atio

n u

sefu

l fo

r g

eo

gra

ph

ers

to

exp

lore

. !It

is a

co

mb

inatio

n o

f m

ap

makin

g (cart

og

rap

hy), d

ata

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rep

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tatio

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laces. !S

om

eo

ne w

ho

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is t

hen

ab

le

to c

reate

a r

ep

resen

tatio

n o

f p

laces b

y layerin

g in

form

atio

n o

n t

op

of

the m

ap

an

d a

llow

ing

th

e p

eo

ple

usin

g t

hem

to

man

ipu

late

info

rmatio

n in

an

att

em

pt

to b

ett

er

un

ders

tan

d a

pla

ce. !

Oth

er

too

ls

Yo

u m

ay n

ot

initia

lly t

hin

k o

f th

ing

s lik

e s

tories,

peo

ple

, ch

art

s,

tab

les a

nd

gra

ph

s a

s b

ein

g t

hin

gs a

geo

gra

ph

er

mig

ht

use,

ho

wever, e

ven

with

a w

ealth

of

oth

er

too

ls s

uch

as m

ap

s,

sate

llite

imag

ery

, an

d G

PS

an

d G

IS a

vaila

ble

, m

ore

in

form

atio

n is n

eed

ed

in p

urs

uit o

f th

e a

nsw

er

to t

he q

uestio

ns o

f “w

hy”

an

d “

wh

ere

.”

In t

his

case,

geo

gra

ph

ers

use s

om

e o

f th

e s

am

e t

oo

ls a

s

every

on

e e

lse t

o e

xp

lore

an

d learn

mo

re,

su

ch

as d

ata

in

tab

les,

an

d c

hart

s a

nd

gra

ph

s w

hic

h c

an

help

with

nu

merical d

ata

ab

ou

t

a p

lace. !If

a g

eo

gra

ph

er

is t

ryin

g t

o u

nd

ers

tan

d w

hy p

eo

ple

sett

led

in

a g

iven

are

a,

they m

igh

t lo

ok b

ack a

t h

isto

rical d

ata

ab

ou

t w

hen

peo

ple

cam

e t

o a

reg

ion

in

an

att

em

pt

to u

nd

ers

tan

d

wh

y. !

Th

ey m

igh

t als

o lo

ok a

t p

rim

ary

so

urc

e d

ocu

men

ts -

firs

t

han

d a

cco

un

ts f

rom

peo

ple

wh

o liv

ed

du

rin

g t

he t

ime t

o g

et

a

sen

se o

f w

hy p

eo

ple

cam

e t

here

. !If

mo

vem

en

t to

th

is r

eg

ion

was

recen

t, t

hey m

igh

t even

in

terv

iew

liv

ing

peo

ple

to

get

clu

es. !

Wh

at

has b

een

ou

tlin

ed

in

th

is s

ectio

n is b

y n

o m

ean

s a

fu

ll lis

t

that

sh

ow

s y

ou

every

to

ol a g

eo

gra

ph

er

can

use. !It

focu

sed

on

so

me o

f th

e m

ost

co

mm

on

on

es,

an

d y

ou

’ll et

pra

ctice w

ith

th

ese

an

d m

an

y m

ore

th

rou

gh

ou

t th

e b

oo

k.

Retu

rn o

nce m

ore

to

th

e “

Wh

at

Too

ls D

o G

eo

gra

ph

ers

Use t

o

Stu

dy t

he E

art

h”

no

te g

uid

e. !T

here

is o

ne fi

nal q

uestio

n f

or

yo

u

to e

xp

lore

befo

re m

ovin

g in

to t

he n

ext

sectio

n.

20

Inte

rac

tive

1.8

Go

og

le

DDrrivvee DD

iiggittaall JJoo

uurrnn

al A

ccttiivviittyy


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