Download how to collect meteorological data italy

• Introduction
• Difference between climate and
atmospheric weather
• Climatic elements:
~ Rainfall
~ Clouds
~ Atmospheric pressure
~ Humidity
~ Temperature
~ Wind
Our project consists in the collection of
meteorological data according to the instructions
given to us by the protocols of GLOBE. These data
are needed to determine whether climate changes
are occurring globally. We have compared these
data with those observed in other countries around
the world, participating to the Globe project.
Climate is the average weather at a given location,
observed for about 20-30 years. Climate is mainly a
function of the inclination of the sun’s rays on the
Earth's surface, considered as a function of the
latitude. It determines flora and fauna and
influences the economic activities, the habits and
culture of the people inhabiting the territory.
In meteorology, atmospheric weather is defined
as the set of all weather phenomena that occur
in the atmosphere at a given point in time. It is
different from climate because the latter
represents the average state of the atmosphere
over a period of about thirty years. What
characterizes the weather is called
meteorological variability that can overlap the
trend of natural climate in the medium - long
term.
Rain is the most common type of atmospheric
precipitation and it happens when separate drops of
water fall from the clouds to the ground. The rain plays
a very important role in the water cycle. Water
evaporates from the oceans, condenses in the clouds
and falls to the ground, then it returns to the ocean
through groundwater and rivers, thus repeating the cycle.
In this way water becomes available to the biosphere,
allowing the development of flora and fauna and
becoming available for human beings.
With a pluviometer we collected
rain, measured the millimetres
fall and reported these data in
the protocols.
Diameter 14 cm
Height 36 cm
Diameter 16 cm
Clouds are made by very little water
particles, ice crystals or both of them.
They are suspended in the
athmosphere and they do not usually
touch the ground.
Our work
Thanks to GLOBE’s guide we can say what
type of clouds are in the sky in a specific
moment of the day.
Atmospheric pressure is the
pressure exerted by a column of
air with the height of the Earth’s
2
atmosphere on a surface of 1 cm
We gauged atmospheric pressure
with a barometer!
Atmosphere is composed by a mixture of gases, one of which is water
vapour. Water vapour is added to atmosphere by evaporation and
transpiration and it is removed when it condenses or when it freezes
and crashes.
Absolute humidity is
the water vapour’s
quantity in the
atmosphere.
Relative humidity (RH) is the
ratio between water vapour’s
quantity in the atmosphere and
the maximum possible one at the
same temperature.
To measure the relative humidity we
used an hygrometer
Temperature is the
physical quantity
that indicates body
or system’s thermal
state.
To report temperature we used a
digital thermometer
• For maximum temperature
• For minimum temperature
• For actual temperature
Maxim temperature
Actual temperature
Minimum
temperature
We report the 3
temperatures then we
press the key “clear”
every day to reset data
just wrote.
Wind is an
horizontal movement
of air masses as a
result of the vertical
movements of
atmospheric air
masses.
To monitor the direction of the
wind we used a little flag and a
compass rose
Our Photos!
Our “little house”.
Inside it there are
our instrument!
We are
watching the
clouds...
We are wathing wind
direction and then we
write data on Globe’s
scheemes.
Our
pluviometer
The End
CLASSE 2° B ITC EINAUDI di PALMANOVA