Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CONS 127 > Earth Observation and Canada > Flashcards

Earth Observation and Canada Flashcards

1
Q

History of observing esrth from space

A
  • camera were initially fixed to unmmanned rockets
  • first images from space came from american V2 rocket **in 1946
    **
  • images shown new mexico and gulf of california
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

History of Observing Earth from Space

A
  • Following the successful
    launch of rockets with a
    camera, systems specifically
    designed for cameras were
    developed by the military.
  • CORONA,(first sytelite system)ARGON, LANYARD
    are three such programs
    which provided space photo
    reconnaissance satellite
    (1959-72).

the film of the pictures in the corona would fill and then drop to earth when full and then they vwould physically get it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are Earth observing systems?

A
  • Continuous data streams
    that provide observations of
    Earth
  • For monitoring the major
    systems of Earth
    (atmosphere, biosphere,
    cryosphere, lithosphere, etc.)
  • Important to have repeat,
    stable, and consistent
    observations for monitoring
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

why is it important to have a stable and consisten observation monotoring?

A
  1. have baselines to compare to
  2. to compare/understand how changes are accoring in the present and what may occcure in the future
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What was the first Environmental Application
of images from Space ?

(the first use of images from space were for melitery reasons)

A
  • First Earth observing systems
    in space for environmental
    applications
  • Weather satellites
  • Practical need to monitor
    weather patterns, systems,
    and storms
  • First televised picture from
    space was aboard the TIROS
    weather satellite in 1960
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

now we have the

A
  • Geostationary Operational
    Environmental Satellite
    (GOES) series
  • Geostationary orbits provide
    24/7 coverage for a hemi-
    spherical side of Earth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

FOUR Earth Observation Programs

A
  1. Modis
  2. Landsat
  3. WorldView
  4. ICEsat
    a.Lidar
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

1.Earth observation systems: Terra and Aqua/ MODIS

A

Moderate Resolution Imaging
Spectroradiometer (MODIS)

  • 250-500 pixel for land reserch
  • 1000m pixel for ocean and atmosphere reserch
  • 1-2 days return period
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

MODIS (Onboard Terra/Aqua-satelites)

A
  • MODIS is the sensor for both terra and aqua satelites
  • Daily images in a global scale
  • Coarse scale of spatial information,fine scale temporal info(1-2 days can take a picture of the earth in every 1 to 2 days)
  • an image of all of earth in for example google earth comes from MODIS
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Earth observation systems: Landsat

A
  • 30m pixel
  • 16-day return period
  • Series of 8 satellites
    comprised of 4 different
    sensors
  • the first Landsat in 1972, the **oldest continous stream of data **
  • (landsat 6) never got to earth
  • Moderate sacale of spatial information
  • fine/moderate temporal information(16 days)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Commercial Satellite Companies:** World View **1 - 4

A
  • DigitalGlobe is one of the largest and most successful private satellite companies which has launched 6 high spatial resolution
    satellites since 1999
  • Most recently they launched the World View series of satellites of which there are now 4
  • They are the highest spatial resolution available from a space platform, in some cases as low as 30cm (not free)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

WorldView

A
  • Finest scale of spatial information
  • Private/not free(the other two are free)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Earth observation systems: ICESat

Ice, Cloud and land Elevation
Satellite (ICESat)

A
  • 70m “footprint”
  • Space-borne laser-ranging
  • Monitoring ice, cloud and land elevation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

ICESat

A
  • Uses Lidar
  • We will talk later about what Lidar is
  • For now, just know it images:
    *** Ice
  • Clouds
  • Elevation**
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Earth Observing Systems: Canada’s role

A
  • Canada is large and vast with lots of resources to monitor
  • Canada contains 7% of the Earth’s renewable freshwater supply
  • Need to monitor these
    resources efficiently, repeatedly, and constantly
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Canada’s Contributions to Earth Observation
from Space

A
  • Astronauts
  • Chris Hadfield
  • Roberta Bondar
  • RADARSat
  • Candarm
  • Urthecast
17
Q

Dr Chris Hadfield

A
  • he took over on the ISS(international space station) in
    2012 and became the first Canadian to
    command the ISS.
  • He returned home in May 2013
  • Chris Hadfield took over 45,000 images while in space.
  • Chris Hadfield was first
    Canadian to walk in space
  • On his first space walk in
    2001, he installed Canadarm2
    to the International Space
    Station
18
Q

Dr. Roberta Bondar

A
  • she was Canada’s first female astronaut
  • Also the first neuroscientist to launch into space
  • Main research focus was health sciences
  • Studying effects of microgravity on human body
19
Q

Canadarm1(1981)/Canadarm2(2001)

A
  • Canadarm1 on Space Shuttle in 1981
  • Canadarm2 on ISS in 2001
  • Canada had an agreement with
    NASA in 1969 to help contribute to
    the NASA Space Shuttle Mission
  • It was agreed that Canada would
    provide a robotic arm
  • The name “Canadarm” was given in
    1981 at the first delivery.
  • In all 5 Canadarms were delivered,
    each cost around $100 million CAD
  • The last Canadarm 1 left the space
    station in 2011
20
Q

sooo

A
  • there were several canadaarm 1 that left in 2011 the space station/space shuttle
  • but there is just one canadarm 2 that has been in the ISS since 2011
21
Q

RADARSAT

A

Satelite Designed to monitor:
* Ice
* Surface wind
* Oil pollution
* Ships
* Disasters
* Ecosystems

22
Q

RADARSAT 1 and 2

A
  • First operational civilian RADAR satellite launched in November 1995
  • RADARSAT 2 Launched In Dec 2007
  • C-band
  • Spatial resolution from 8 - 100m
  • Can see through clouds and very good at detecting sea ice
    and snow    (important!)
  • the complete map of antartica was able to be aquired because of RADARSAT 1
23
Q

3rd RADARSAT is the
RADARSAT Constellation

A
  • 3 Identical smaller satellites
  • 3-8m pixel
  • Launched by SPACE-X from California
  • February 2019
24
Q

Urthecast

A
  • Urthecast has launched a video camera that operates on the ISS
  • First high definition HD videos from space
  • The camera allows tracking of objects on the Earths Surface as the ISS orbits the Earth
  • Vancouver-based Canadian earth observation company
  • Now called EarthDaily after recent insolvency

the camera moves depending where the satelite is

25
Q
A

CONS 127 (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions