For Activity 2, use the same web application
as before.
Choose two other images in the web app
Count the number of impact craters different cut off diameter for the different square region.
Non-impact craters should not be counted.
Once you know the number of impact craters for that square region use the following formula to estimate number of craters for 1 mln. sq km
o
# of craters / 1 mlnsq. km = 1,000,000 * (# of craters) / (linear size of region)
2
1.
Pavonis Mons: # of craters = 5, linear size of region = 3.11 km 2
5 / 1 mill sq km = 1,000,000 *(5) / (3.11 km
2
)
# of craters / 1 mlnsq Km = 516,951 km
2
, 5.2 X 10
5
km 2.
Arsia Mons: # of craters = 15, linear size of region = 4.36 km
2
15/1mill sq km = 1,000,000 *(5) / (4.36 km
2
)
# of craters / 1 mlnsq Km = 263,025 km
2
, 2.6 X 10
5 km
