meterological
MeterologiCAL
INSTRUMENTS:
Meteorological instruments are scientific
instruments used in the study of weather. Studying the weather requires the use
of equipment that can measure things like wind direction, humidity, atmospheric
pressure, solar
radiation, rainfall, temperature, wind speed, evaporation rate, and so forth. Other
instruments assist people with visible observations, such as studying clouds
and storm systems, recording visual data that can be perused or studied later
and compared against other visual data from different locations and times.
Some instruments used in meteorology are very old, while
others are more recent inventions. Like other scientific instruments,
meteorological equipment needs to be kept in good condition to take accurate
measurements. Because it is exposed to the weather, special care must be taken
to keep it clean and properly calibrated. Failure to maintain instruments can
result in faulty readings, which would skew or compromise the data being
collected. Instrument companies will often take them back for recalibration and
repair by arrangement.
Meteorologists also launch satellites to make weather observations
from space, classically to record the movement of clouds and storm systems.
They also use tools like weather balloons and radiosondes to make weather
observations in the Earth's atmosphere. These devices include instrument
packages that can take an assortment of measurements and either beam them back
to a weather station or store them so that they can be access when the device
is collected.
Six’s maximum and
minimum thermometer: A Six’s thermometer is used to measure the daily temperatures in order
to prepare weather reports. It was invented by the British scientist James Six, in 1780(or 1782 according to some sources).
They are now
filled with safer liquid like alcohol instead of mercury for measuring
temperatures.
Uses: Six’s thermometer is used where when one wants to know the
maximum or minimum temperature during a day.
It indicates current temperature
along with the highest and the lowest temperatures since it was last set.
It is used to record extreme
temperatures at a location as in meteorology, horticulture etc.
They can be used to measure air
temperatures.
Recording data over a period of
time means that changes in the climate could be observed.
They can also be used to measure
air temperatures. The temperatures are shown both in Centigrade and Fahrenheit.
Water temperature is an
important factor for determining evaporation rates since the energy needed to
evaporate warmer water is lesser than that for cooler water. Six’s thermometer
is also used to measure this.
Six’s thermometer is also
popularly used by gardeners in greenhouses to plan care for plants better.
Bibliography
:Image: https://sites.google.com/site/msswcgi/the-inquiry-cycle/step-2-collecting-data/measuring-temperature-maximum-minimum-thermometer
https://www.quora.com/What-is-the-use-of-Sixs-maximum-and-minimum-thermometer

Mercury
Barometer:
USAGE of THE
BARAOMETER
In the mercury
barometer, atmospheric pressure balances a column of mercury, the height of
which can be precisely measured. To increase their accuracy, mercury barometers
are often corrected for ambient temperature and the local value of gravity.
Common pressure units include pounds per square inch; dynes
per square centimetre; newtons per square metre (the SI unit
called the pascal); inches, centimetres, or millimetres of mercury; and
millibars .
Uses: Measurement of atmospheric pressure
Determining the altitude of a place
Weather Forecasting
Calibration and checking of aneroid barometers
Application in Fluid Mechanics
Measurement of pressure in aircrafts
Surface Weather Analysis
Preparation of Barographs
Preparation of aircraft altimeters

Aneroid barometer : It is a nonliquid barometer and is widely used in portable instruments and in aircraft altimeters because of its smaller size and convenience. It contains a flexible-walled evacuated capsule, the wall of which deflects with changes in atmospheric pressure.
Uses:. It is often used for reading pressure in homes and
recreational boats.
Other uses may include barographs in metrology
and altimeters in modern aircraft.
It can store a week's worth of data.
For weather forecasts.
For the pressure
levels.
For the sensor gauges pressure.
For weather map symbols which provides a graphic
representation of weather.

Wind
Vane: A wind vane,
weather vane, or weathercock is an instrument used for showing the direction of
the wind. It is typically used as an architectural ornament to the highest
point of a building. Weather
vanes have been used as early as the first century B.C. in ancient Greece.
The earliest weather vane on record was a bronze sculpture built by Andronicus
in Athens.
Uses: Used for showing the direction
of the wind.
It is also used as an
architectural ornament on the highest point of a building.
Used by
farmers and ranchers to get
imformation about the current weather conditions and helping us to predict
storms and other rough weather to come

Anemometer: An anemometer
is an instrument that measures wind speed. This type of anemometer
has a spinning wheel. The stronger the wind blows, the faster the wheel
rotates. The anemometer counts the number of rotations, which is used to
calculate wind speed. The earliest anemometer was designed by Italian
inventor and architect Leon Battista Alberti in 1450. His device consisted
of a disk placed perpendicular to the direction of the wind that would spin due
to the wind, the angle of inclination of the disk momentarily revealing its
force.
1. Uses: It is used to measure the speed of wind.
2. It is used to measure
the velocity of wind
3. It is used to measure
pressure of wind.
4. It is used to check
the direction of the wind.
5. It is used to check
the rate of flow of wind.
6. It is used to read
the pattern of weather.
Rain
Gauge: rain gauge (also known as udometer,
pluvia metior, pluviometer, ombrometer, and hyetometer) is an instrument
used by meteorologists and hydrologists to gather and measure the amount of
liquid precipitation over an area in a predefined area, over a period of
time.Measuring rainfall can be is primarily done in three different ways using
three different types of rain gauges. The three major types of rain gauges are
the standard gauge, tipping bucket gauge and weighing gauge
Uses: It
measure the fluid amount in a defined precipitated space over time reference.
2. This principle enables to know the amount
of precipitation over an area.
5. Geostorms are well marked through rain
gauge.
7. In time, this study will help to
prepare for an upcoming disasters.

Hygronometer: The word hygrometer is derived from
the Greek hygros meaning wet or moist, whereas hydro- comes from the Greek
for water, hydro (as in hydrated and hydrogen). In 1783, Swiss physicist and
geologist, Horace Bénédict de Saussure built the first
hygrometer using a human hair to measure humidity.
·
Uses: Used in measuring of humidity in air.
·
Used in measuring amount of water vapor in air.
·
Used in measuring of temperature of air.

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