metrological instuments

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Meteorological Instruments And Their Uses Name : Neilkrishna Kabara STD: 9 th A Roll no. : A914

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Page 1: Metrological instuments

Meteorological

Instruments And Their

Uses

Name : Neilkrishna

Kabara

STD: 9th A

Roll no. : A914

Page 2: Metrological instuments

• Firstly, I would like to thank my subject teacher” Sabita Mam” for giving me a golden opportunity to study this topic and getting much valuable information.

• Secondly, I would like to thank my parents to guide me in this project.

• Thirdly, I would like to thank my friends for guiding me and providing me with valuable information and making this project successful.

Page 3: Metrological instuments

SR.NO TOPIC SLIDE NO.

1. Meteorology and Meteorological Instuments 5

2. Chart showing the Instruments 6

3. Six’s Maximum and minimum Thermometer 7

4. Uses 8

5. Mercury Barometer 9

6. Uses 10

7. Aneroid Barometer 11

8. Uses 12

9. Wind Vane 13

10. Anemometer 14

11. Images of Anemometer 15

12. Rain Gauge 16

13 Images of Rain Gauge 17

14. Hygrometer 18

15. Bibliography 19.

16. Thank You Slide 20

Page 4: Metrological instuments

PREFACE

• This project will explain you the some of

the Meteorological Instruments, their

working, and even their uses.

• Many unknown facts will be showed in the

in the upcoming Slides.

SO LETS GO THE NEXT SLIDE

Page 5: Metrological instuments

• Meteorology Definition:

The branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather, is called Meteorology.

• Meteorological Instruments:

Meteorological instruments are the equipment used to sample the state of the atmosphere at a given time. Each science has its own unique sets of laboratory equipment.

Page 6: Metrological instuments

METEOROLOGICAL

INSTUMENTS

SIX’S MAXIMUM

AND MINIMUM

THERMOMETER MERCURY

BAROMETER

ANEMOMETER

WIND VANE

ANEROID BAROMETER

RAIN GUAGE

HYGROMETER

Whole/All Sky

Camera

Page 7: Metrological instuments

• A U-shaped thermometer, designed by J. W. Six, with a bulb that contains creosote. Mercury occupies the bend in the tube and a spring-loaded index rests on the mercury's meniscus in each leg of the tube. These indexes are displaced by the expansion and contraction of the mercury, remaining at their extreme positions to give readings of the maximum and minimum temperatures. They are reset by the use of a magnet.

Page 8: Metrological instuments
Page 9: Metrological instuments

• A mercury barometer is a tool that uses the element mercury to measure barometric (atmospheric) pressure to predict weather.

• It is a device that consists of an upside-down tube filled with mercury that is in a vessel full of mercury. The atmosphere (or the air) pushes down on the mercury in the vessel, which in turn, pushes the mercury in the tube up. And the height of mercury in this tube (also known as the height of mercury column) is used as a measure of atmospheric pressure. For instance, 1 atmospheric pressure causes a height of 760 mm of mercury in the tube

Page 10: Metrological instuments
Page 11: Metrological instuments

• It is a device for measuring atmospheric pressure without the use of fluids. It consists of a partially evacuated metal chamber, the thin corrugated lid of which is displaced by variations in the external air pressure.

Page 12: Metrological instuments

• The only use of the Aneroid barometer is to measure the Atmospheric pressure.

• There are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level. Another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.

Page 13: Metrological instuments

• A weather vane, wind vane, or weathercock is an instrument for showing the direction of the wind. They are typically used as an architectural ornament to the highest point of a building.

Page 14: Metrological instuments

• an instrument for measuring the speed of the wind, or of any current of gas.

Page 15: Metrological instuments

• It is used at the airports to calcite accurate wind data under all conditions.

In order for wind speeds to be comparable from location to location, the effect of the terrain needs to be considered, especially in regard to height. Other considerations are the presence of trees, and both natural canyons and artificial canyons (urban buildings). The standard anemometer height in open rural terrain is 10 meters.

Page 16: Metrological instuments
Page 17: Metrological instuments

• A rain gauge is an instrument used by meteorologists and hydrologists to measure precipitation (e.g. rain, snow, hail or sleet) in a certain amount of time. It usually measures in millimetres. Rain gauge is a meteorological instrument for determining the depth of precipitation (usually in mm) that occurs over a unit area (usually one metre squared) and thus measuring rainfall amount. One millimetre of measured precipitation is the equivalent of one litre of rainfall per metre squared.

Page 18: Metrological instuments

Standard Rain Guage

Page 19: Metrological instuments

• A hygrometer, also known as a psychrometer, is an instrument used for measuring the moisture content in the atmosphere.

Modern Hygrometer

Page 20: Metrological instuments

• All skycam is a stand-alone Astro and weather video device enclosed in a weather proof dome that provides wide view at the entire sky.

• All day all night rain or shine images from the all-sky can be viewed on the TV captured on to a laptop or PC or streamed live over the Internet. The cameras fisheye lens gives you a 180 degree view from horizon to horizon.

Page 21: Metrological instuments
Page 22: Metrological instuments

• You can use this live video to observe the sunrises and sunsets, cloud activity, moving storms, starry night sky, and more.

• In meteorological applications camera is used to study cloud cover, UV index, timelapse photography of clouds, cloud fractional coverage, sky polarization, the computation of cloud base height, as well as wind speed at cloud heights.

Page 23: Metrological instuments

• https://www.google.co.in/search?q=Hygrometer&espv=2&biw=1242&bih=557&source=lnms&sa=X&ved=0ahUKEwj5itrrn8LSAhXHRI8KHW91C1UQ_AUIBygA&dpr=1.1

• https://www.google.co.in/search?q=Hygrometer&espv=2&biw=1242&bih=557&source=lnms&sa=X&ved=0ahUKEwj5itrrn8LSAhXHRI8KHW91C1UQ_AUIBygA&dpr=1.1#q=anemometer&*

• www.google.co.in

Page 24: Metrological instuments