Transcript Calculating Vertical Exaggeration = Vertical

MORE MAPPING SKILLS
Area
Reference –
4 figure
reference
Grid
Reference –
6 figure
reference
“L E N”
L corner
E Eastings
N Northings
Different sorts of maps…..
Maps at
different
scales….
• Large
scale
maps
show a
great
amount
of detail
over a
small
area
• Small
scale
maps
contain
less
detail
over a
large
area
Density
and Area
Unusual picture graphs
Aerial Photos
• Cause and
effect
• Change
• Scale
• ….note with
printing these
are not to scale..
Calculating Vertical
Exaggeration =
Vertical Scale
Horizontal Scale
Weather Maps
•
(a)
(b)
(c)
Three types of precipitation formation:
Orographic – warm moist air is
pushed up by mountain barriers with
heavy rain on the windward side and
leeward side is drier.
Convectional – hot air rises to great
heights on hot humid days forming
cumulonimbus storm clouds
Frontal – Cold air blows onto hot
moist air pushing it higher so it is
forced to cool rapidly forming a line of
cloud and possible rain.
Tropical Cyclones
• Where they occur and how
they occur?
Cyclones, Hurricanes, Typhoons
spin clockwise in the Southern Hemisphere
and Anticlockwise in the Northern
Hemisphere….which one is Cyclone Larry that
hit Queensland in 2006 and Hurricane Katrina
in 2005?
Satellite Imagery
and Synoptic Charts
The 1998 Sydney-to Hobart yacht race was the most
disastrous event in the race's history. The fleet met a
severe storm off the coast of southern NSW which caused
the death of 6 people. Only 44 of the initial 115 yachts
departing Sydney Harbour arrived in Hobart.
HURRICANES:
The Sky before Katrina struck
These pictures were taken in a town called
Magee, in the state of Missississippi through which
the eye of the storm passed.
Magee is 150 miles North of Waveland ,
Mississippi where the
Hurricane made land fall.
This is believed to be the storm surge from Hurricane Katrina it was pproximately 35 to 40 feet high. When it slammed
into the beach front communities of Bay Saint Louis and Waveland Mississippi to completely destroy 99% of every
structure along the beach for 9 miles and over a mile inland. The destruction only started there. The flooding that co
ntinued inland destroyed the contents of all but 35 homes in these two communities of approximately 14,000 people.
- characteristics of CYCLONES/HURRICANES/TYPHOONS – torrential rain, cyclonic winds, drop in air pressure,
flooding from torrential rain and storm surge from sea; occur in tropical seas where warm ocean temperatures foster
evaporation