Satellites Flashcards
1
Q
How many satellites are in soace
A
1000 s
2
Q
What do satellites do (1)
A
Take images
3
Q
What do satellite imagery look like (3)
A
Some are from the whole earth, others are closer others are angled
4
Q
What is SA’s satellite called that twkes images of SA daily and when was it launched
A
Landsat 7 on Jully 1999
5
Q
What do satellite images provide (7)
A
Vegetation cover Soil moisture content Where soil erosion takes place Where settlements are Where weather/ wetlands are
Data of weather forecast (cloud patters)
Earthquake/tsunamis studied
6
Q
How are satellite comparisons made
A
Images are taken daily kver a long period of time so we cam compare to past images
