Cap12 Cloud Classification (school Pdf N 9)

Question 1

3 types of clouds height subdivision and their relative height?

Answer 1

Low level clouds&raquo_space; from ground up to 6500ft
Middle level clouds» from 6500 ft to 23000ft
High level clouds» from above 16500ft until high levels

Question 2

Cloud composition for different types of temp?

Answer 2

Above 0 c»> water droplets
From 0c to -10 C&raquo_space;> SUPERCOOLED WATER DROPLETS ONLY
FROM -10 TO -40&raquo_space;> SMALL SUPERCOOLED WATER DROPLETS AND ICE
FROM -40 ABOVE&raquo_space;> ONLY ICE

Question 3

CIRRUS DESCRIPTION?

Answer 3

WHITE DELICATE FILAMENTS,PATCHES OR NARROW BANDS.ONLY ICE

Question 4

CIRROCUMULUS (CC)?

Answer 4

THIN SHEET OR LAYER OF CLOUDS ,NO SHADING.COMPOSED OF SMALL ELEMENTS IN THE FORM OF GRAINS

Question 5

CIRRUSTRATUS (CS)

Answer 5

TRANSPARENT WHITISH CLOUD VEIL OF FIBROUS.TOTALLY OR PARTIALLY COVERING THE SKY .USUALLY WITH AN HALO

Question 6

ALTOCUMULUS (AC)

Answer 6

WHITE OR GREY, PATCH, SHEET OR LAYER OF CLOUD

USUALLY CAN SEE THE SHAPES

Question 7

ALTOSTRATUS (AS)

Answer 7

GREYISH OR BLUISH CLOUD SHEET OR LAYER .

TOTALLY OR PARTIALLY COVERING THE SKY.AND HAVING PARTS THIN ENOUGH TO REVEAL THE SUN.

Question 8

STRATOCUMULUS (SC)

Answer 8

GREAY OR WHITISH,PATCH SHEET OR LAYER OF CLOUD THAT ALMOST ALWAYS HAS DARK PARTS ,COMPOSED OF ROUNDED MASSES

Question 9

STRATUS (ST)

Answer 9

GREY CLOUD LAYER UNIFORM BASE,DRIZZLE RAIN SNOW GRAINS

Question 10

NIMBOSTRATUS (NS)

Answer 10

GREY CLOUD LAYER OFTEN DARK .ITS THICK ENOUGH TO BLOCK THE SUN.CONTINUOUSLY FALLING SNOW OR RAIN

Question 11

CUMULUS (CU)

Answer 11

DETACHED WHITE CLOUDS,CLEAR SHAPE ,DEVELOPING VERTICALLY

Question 12

CUMULONIMBUS(CB)

Answer 12

HAEAVY AND DENSE CLOUD .BASE COULD START FROM THE GROUND UPTO HIGH LEVELS

Question 13

CASTELLANUS

Answer 13

APPLIES TO CIRRUS,CIRROCUMULUS,ALTOCUMULUS AND STRATOCUMULUS.CLOUDS WHICH HAS CUMULIFORM PROTUBERANCE IN THE FORM OF TOWER

Question 14

LENTICULARIS

Answer 14

MAINLY APPLIED TO CIRROCUMULUS ,ALTOCUMULUS AND STRATICUMULUS.SHAPE OF LENCE AND APPEAR NEAR MOUNTAIN FOR OROGRAPHIC LIFTING.BUT MAY OCCUR IN NON MOUNTAINS AREA ALSO

Question 15

CONGESTUS

Answer 15

also known as towering cumulus, are a form of cumulus that can be based in the low or middle height ranges. They achieve considerable vertical development in areas of deep, moist convection. They are an intermediate stage between cumulus mediocris and cumulonimbus

Question 16

TOWERING CUMULUS (TCU)

Answer 16

CUMULUS CONGESTUS OF GREAT VERTICAL EXTEN

Question 17

CALVUS

Answer 17

is a moderately tall cumulonimbus cloud that is capable of precipitation but has not yet reached the tropopause, which is the height of stratospheric stability at which cumulonimbus forms into cumulonimbus capillatus

Question 18

CAPILLATUS

Answer 18

is a cumulonimbus cloud with dense cirrus clouds which makes the cloud’s top appear to contain hair-like structures.

It is an intermediate stage between cumulonimbus calvus and cumulonimbus incus.

Question 19

FEW,SCT,BKN,OVC MEANING?

Answer 19

FEW»>1-2 /8 COVERAGE
SCT»>3-4/8 COVERAGE
BKN»5-7/8 COVERAGE
OVC»8/8 COVERAGE

Question 20

WHEN THE CLOUD BASE IS CALLED CELING?

Answer 20

WHEN IT’S ABOVE 4 OCTA

Question 21

VFR RULES?

Answer 21

CELING NON LESS THAN 450M (1500FT)

VISIBILITY MORE THAN 5KM