Block 2 ATSC 231 Questions with
complete solution
What is the purpose of the Surface Analysis Chart? - correct answer
✔analyzed charts of surface of surface wx observations (land, ship, buoy)
What is an isobar? - correct answer ✔lines of constant pressure, depict on
sea level pressure
What is a troph? - correct answer ✔an extended region of reflectivity low
pressure
What is a ridge? - correct answer ✔an extended region of relatively high
pressure
What does a high and low pressure system look like on a surface analysis
chart? - correct answer ✔either H or L
What does a troph and ridge look like on a surface analysis chart? - correct
answer ✔a troph is dashed line
a ridge is zig zag
What is on a surface station model? - correct answer ✔temp and dew point- f
wx- symbols
wind- true north, barb kts,
sea level pressure- closest to 1000 mb
sky cover- in circle
pressure trend- over 3 hours and what doing
, What type of analysis are on surface analysis chart? - correct answer
✔frontal and isobaric
What is the relationship between isobar, pressure gradient, wind direction and
speed? - correct answer ✔The pressure gradient causes low pressure
systems to spin counter clockwise, thus making wind counter clockwise.
Isobars indicate wind direction and speed, intensity of pressure systems.
What are the two types of metar displays at AWC? - correct answer
✔interactive and static
When are surface visibilities rounded on a station model? - correct answer
✔0, 1/16, 1/8, 3/16, 1/4, 3/8- 0.3
1/2-0.5
3/4-0.8
1 1/2, 1 3/4- 2
2 1/2 , 3- 3
Sky condition on station model? - correct answer ✔m- missing
open square- clr
open circle - skc
open with half line- few
1/4 black- sct
3/4 black- bkn
full black- ovc
x- obscured
complete solution
What is the purpose of the Surface Analysis Chart? - correct answer
✔analyzed charts of surface of surface wx observations (land, ship, buoy)
What is an isobar? - correct answer ✔lines of constant pressure, depict on
sea level pressure
What is a troph? - correct answer ✔an extended region of reflectivity low
pressure
What is a ridge? - correct answer ✔an extended region of relatively high
pressure
What does a high and low pressure system look like on a surface analysis
chart? - correct answer ✔either H or L
What does a troph and ridge look like on a surface analysis chart? - correct
answer ✔a troph is dashed line
a ridge is zig zag
What is on a surface station model? - correct answer ✔temp and dew point- f
wx- symbols
wind- true north, barb kts,
sea level pressure- closest to 1000 mb
sky cover- in circle
pressure trend- over 3 hours and what doing
, What type of analysis are on surface analysis chart? - correct answer
✔frontal and isobaric
What is the relationship between isobar, pressure gradient, wind direction and
speed? - correct answer ✔The pressure gradient causes low pressure
systems to spin counter clockwise, thus making wind counter clockwise.
Isobars indicate wind direction and speed, intensity of pressure systems.
What are the two types of metar displays at AWC? - correct answer
✔interactive and static
When are surface visibilities rounded on a station model? - correct answer
✔0, 1/16, 1/8, 3/16, 1/4, 3/8- 0.3
1/2-0.5
3/4-0.8
1 1/2, 1 3/4- 2
2 1/2 , 3- 3
Sky condition on station model? - correct answer ✔m- missing
open square- clr
open circle - skc
open with half line- few
1/4 black- sct
3/4 black- bkn
full black- ovc
x- obscured
