meteorological data collection
DESCRIPTION
Meteorological data collection. INDEX. Introduction Difference between climate and atmospheric weather Climatic elements: Rainfall Clouds Atmospheric pressure Humidity Temperature Wind. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/1.jpg)
Meteorological data collection
![Page 2: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/2.jpg)
• Introduction• Difference between climate
and atmospheric weather• Climatic elements:
~ Rainfall~ Clouds~ Atmospheric pressure~ Humidity ~ Temperature~ Wind
![Page 3: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/3.jpg)
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.
Introduction
![Page 4: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/4.jpg)
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.
Difference between climate and atmospheric weather
![Page 5: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/5.jpg)
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.
![Page 6: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/6.jpg)
Climate’s elements
![Page 7: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/7.jpg)
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.
Rainfall
![Page 8: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/8.jpg)
With a pluviometer we collected rain, measured the millimetres fall and reported these data in the protocols.
Our work
![Page 9: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/9.jpg)
Height 36 cm
Diameter 16 cm
Diameter 14 cm
Our pluviometer
![Page 10: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/10.jpg)
CloudsClouds 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.
![Page 11: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/11.jpg)
Thanks to GLOBE’s guide we can say what type of clouds are in the sky in a specific moment of
the day.
Our work
![Page 12: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/12.jpg)
![Page 13: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/13.jpg)
Atmospheric pressure is the pressure exerted by a column of air with the height of the Earth’s atmosphere on a surface of 1 cm2
![Page 14: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/14.jpg)
We gauged atmospheric pressure with a
barometer!
Our work!!
![Page 15: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/15.jpg)
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.
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.
![Page 16: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/16.jpg)
To measure the relative humidity we used an hygrometer
Our work
![Page 17: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/17.jpg)
Temperature is the physical quantity that indicates body or system’s thermal state.
![Page 18: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/18.jpg)
To report temperature we used a digital thermometer
• For maximum temperature• For minimum temperature• For actual temperature
![Page 19: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/19.jpg)
Maxim temperature
Actual temperature
Minimum temperature
We report the 3 temperatures then we press the key “clear” every day to reset data just wrote.
![Page 20: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/20.jpg)
WindWind is an horizontal movement of air masses as a result of the vertical movements of atmospheric air masses.
![Page 21: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/21.jpg)
To monitor the direction of the wind we used a
little flag and a compass rose
Our work!!
![Page 22: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/22.jpg)
![Page 23: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/23.jpg)
Our Photos!
![Page 24: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/24.jpg)
Our “little house”. Inside it there are our instrument!
![Page 25: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/25.jpg)
We are watching the clouds...
We are wathing wind direction and then we write data on Globe’s scheemes.
Our pluviometer
![Page 26: Meteorological data collection](https://reader033.vdocuments.us/reader033/viewer/2022061520/56816265550346895dd2cd32/html5/thumbnails/26.jpg)
The End
CLASSE 2° B ITC EINAUDI di PALMANOVA