Referring to the points made by the reading, a jet stream is a highspeed flow of air in the middle layer of atmosphere, i. e. troposphere, that is caused by differences between temperature of the earth surface and the troposphere. In north hemisphere, there are mainly to strong stream, one is southern and the other is northern. The professor explains how the jet streams, especially the polar one, influences airlines.
For the beginning, the reading highlights that jet streams flow from one area toward another, based on the temperature differentials. The professor states that the direction of polar stream affect the duration of flights. For example, a headwind flows from New York to Los Angles that results in an almost one-hour longer flight than the opposite direction. Moreover, it leads to higher fuel consumption, as well as bumpier flight, comparing to the return trip from NY to LA.
Moreover, the passage mentions that the two jet streams over North America make two different climate fronts that can cause disturbances, such as tornados and storms. The professor also indicates that the jet streams can mobilize storms and unfavorable weather conditions, which in turn may affect the airline schedules.
Referring to the points made by the reading, a jet
stream
is a
highspeed
flow of air in the middle layer of atmosphere,
i. e.
troposphere, that
is caused
by differences between temperature of the earth surface and the troposphere. In north hemisphere, there are
mainly
to strong
stream
, one is southern and the other is northern. The professor
explains
how the jet
streams
,
especially
the polar one, influences airlines.
For the beginning, the reading highlights that jet
streams
flow from one area toward another, based on the temperature differentials. The professor states that the direction of polar
stream
affect the duration of flights.
For example
, a headwind flows from New York to Los Angles that results in an almost one-hour longer flight than the opposite direction.
Moreover
, it leads to higher fuel consumption,
as well
as bumpier flight, comparing to the return trip from NY to LA.
Moreover
, the passage mentions that the two jet
streams
over North America
make
two
different
climate fronts that can cause disturbances, such as tornados and storms. The professor
also
indicates that the jet
streams
can mobilize storms and unfavorable weather conditions, which in turn may affect the airline schedules.