CONS 127 FINAL COMPLETE TEST PAPER WITH
CORRECT ANSWERS
◉ why use radar.
Answer: active microwave energy penetrates clouds and serves as
an all-weather remote sensing system
• Coverage can be obtained at user-specified times, even at night
◉ Three factors govern the response of the backscatter.
Answer: surface roughness
diffuse reflectio : forest
specualr reflection: ncie relection abck flast ice (more backscatetr)
highets with corenr reflection
dielectric, properties moisture content (increeas ebackscatetr
because mositure is good conducter)
,chemical makeup infeucne how eelctriclaly codncutive proeprty is,
hgigher dieltic means more reflected energy
◉ backscatetr.
Answer: reflecte microwave enrgy iff of surface
◉ Bands.
Answer: X, C,L, P in that order smalelst to largert and least groudn
concentration in order
longer the wavelength, proption to abiltiy to peternate groudn
◉ general rule.
Answer: choose the wavelength that approximates the objects
ofinterest
◉ radarsat 1 and 2.
Answer: -canada made
First operational civilian RADAR satellite launched inNovember
1995• RADARSAT 2 Launched In Dec 2007• C-band
,an see through clouds and very good at detecting sea iceand snow•
Covers polar regions daily
• Temperate zones every 3 days; Tropical zones every 5 day
water and ice have contarst ins urface roughness
◉ radar cosntelltion.
Answer: • 3 Identical smaller satellites, hugher spcail reosltuion
artiffically increase temporal resolution of satltties, withotu
comrposimign reosltuion
◉ Why is RADAR particularly suitable for a country like Canada?•
Hint:.
Answer: ice and snow, coastline, rafdar coudl for diffetnting
, -lots of clouds
- not a lot of sun in winter in northern part of canada, experiecn 24
horus of sunlught
◉ 3 uses of RADAR.
Answer: mapping Antarctica, radarsat 1 in 1997, so logn because
passive isntuements and clouds
First complete map of the speed and direction of ice flowon
Antarctica derived from RADARSAT-2 with rnaign measuremtn
what age layers of use are, ash from volacnos shwo up in core to tell
age
◉ oil spills.
Answer: oilspills need to respond to right away, sees through clouds
or its dark
surfzace roughess: l floats on water, suppressingoceanic capillary
waves, and creatinga surface that is smoother than thesurrounding
wate
CORRECT ANSWERS
◉ why use radar.
Answer: active microwave energy penetrates clouds and serves as
an all-weather remote sensing system
• Coverage can be obtained at user-specified times, even at night
◉ Three factors govern the response of the backscatter.
Answer: surface roughness
diffuse reflectio : forest
specualr reflection: ncie relection abck flast ice (more backscatetr)
highets with corenr reflection
dielectric, properties moisture content (increeas ebackscatetr
because mositure is good conducter)
,chemical makeup infeucne how eelctriclaly codncutive proeprty is,
hgigher dieltic means more reflected energy
◉ backscatetr.
Answer: reflecte microwave enrgy iff of surface
◉ Bands.
Answer: X, C,L, P in that order smalelst to largert and least groudn
concentration in order
longer the wavelength, proption to abiltiy to peternate groudn
◉ general rule.
Answer: choose the wavelength that approximates the objects
ofinterest
◉ radarsat 1 and 2.
Answer: -canada made
First operational civilian RADAR satellite launched inNovember
1995• RADARSAT 2 Launched In Dec 2007• C-band
,an see through clouds and very good at detecting sea iceand snow•
Covers polar regions daily
• Temperate zones every 3 days; Tropical zones every 5 day
water and ice have contarst ins urface roughness
◉ radar cosntelltion.
Answer: • 3 Identical smaller satellites, hugher spcail reosltuion
artiffically increase temporal resolution of satltties, withotu
comrposimign reosltuion
◉ Why is RADAR particularly suitable for a country like Canada?•
Hint:.
Answer: ice and snow, coastline, rafdar coudl for diffetnting
, -lots of clouds
- not a lot of sun in winter in northern part of canada, experiecn 24
horus of sunlught
◉ 3 uses of RADAR.
Answer: mapping Antarctica, radarsat 1 in 1997, so logn because
passive isntuements and clouds
First complete map of the speed and direction of ice flowon
Antarctica derived from RADARSAT-2 with rnaign measuremtn
what age layers of use are, ash from volacnos shwo up in core to tell
age
◉ oil spills.
Answer: oilspills need to respond to right away, sees through clouds
or its dark
surfzace roughess: l floats on water, suppressingoceanic capillary
waves, and creatinga surface that is smoother than thesurrounding
wate
