TORNADO

ENGLISH ASSIGMENT (GROUP )

CHAPTER I

NATURE DISASTER – TORNADO

Teacher : Dra. Sulianah, S.Pd

 

                                                                    

By Group 1

Adhelia Diah(1/9B)

Desy Yuninda(8/9B)

Suci Romadoni(32/9B)

Yasinta Octalia R.(35/9B)

SMP NEGERI 2 MALANG

Jl.Prof.Moh.Yamin 60 (0341)325508 Malang 65118

Tahun Pelajaran 2013 – 2014

1.    Etimology

       The word "tornado" is an alteration of the word in Spanish tronada, which means "thunderstorm". Then, said the tornado also tonare taken from Latin, meaning "roar". This word is very likely a combination of the Spanish language and tornar tronada ("spin"), however, said it may also be a folk etymology. Tornado is also commonly known as twisters.

2.    Definition

·       TORNADO

Tornado Glossary of Meteorology as defined by the "fast rotating column of air which is fused to the surface of the soil and emerge from the bottom of cumuliform clouds or cumuliform cloud, and often (but not always) visible as a funnel cloud ..."

·       CONDENSATION FUNNEL

The intensity of the low pressure caused by the high wind speeds and rapid spin often causes water vapor in the air condenses causing visible funnel is a whirlwind condensation.

·       FUNNEL CLOUD

Manifestation of the condensation funnel without the strong winds at the surface.

3.    Type

·       MULTI-VORTEX

Multi-vortex tornado is a type of tornado in which two or more rotating column of air that surrounds the central clot.

·       SATELLITE TORNADO

Satellite tornado is a term for a weaker tornado formed near large powerful tornado that occurred in the same mesosiklon. Satellites orbit tornado tornado emerged from large (as a name), which shows the form of a multi-vortex swirl. However, a satellite tornado is a distinct funnel, and smaller than the main funnel.

4.    Rotation

           Tornadoes normally rotate cyclonically (when viewed from above, this is counterclockwise in the northern hemisphere and clockwise in the southern). While large-scale storms always rotate cyclonically due to the Coriolis effect, thunderstorms and tornadoes are so small that the direct influence of the Coriolis effect is unimportant, as indicated by their large Rossby numbers. Supercells and tornadoes rotate cyclonically in numerical simulations even when the Coriolis effect is neglected. Low-level mesocyclones and tornadoes owe their rotation to complex processes within the supercell and ambient environment.

6.  Question

• Where did the word tornado come from?

• According to the Glossary of Meteorology, whether it's a

   tornado?

• What causes condensation funnel seemed?

• Divided into how jeniskah tornado that? mentioned!

• How do I prove that a tornado was spinning motion?