Barometer. First developed by the Italian scientist Evangelista Torricelli in the 17th century, the barometer measures the atmospheric pressure, which helps meteorologists predict weather patterns. These slight changes in the atmosphere’s pressure usually foreshadow changes in the weather.

Levels of humidity are measured using an instrument called a hygrometer. A simple hygrometer is known as a psychrometer which consists of a dry bulb and a wet bulb thermometer. Evaporation from the wet bulb lowers its temperature thus usually reads lower than the dry bulb.

An anemometer also measures wind, but it measures the speed of the wind. This instrument has three cups connected to rods, which rotate on one center rod. Wind speed is measured in miles per hour. A hygrometer is another instrument used to measure weather.

There are many different types of precipitation —rain, snow, hail, and sleet for example—yet they all have a few things in common. They all come from clouds. They are all forms of water that fall from the sky.

They are temperature, atmospheric pressure, wind, humidity, precipitation, and cloudiness. Together, these components describe the weather at any given time.

18 Types

Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists.

An instrument used to measure the humidity, or amount of water vapour in the atmosphere. The sensing mechanism of the instrument can be hair (hair hygrometer), a plate coated with carbon (electrical hygrometer), or an infrared sensor (infrared hygrometer). A hygrometer composed of two similar thermometers.

A humidity monitoring device is called a hygrometer. Hygrometers may be designed for indoor or outdoor humidity monitoring use (or both).

Hygrometer works on the phenomenon called evaporative cooling. When water evaporates from any surface, it becomes cool because water molecules take heat energy from the surface during the evaporation. Due to this cooling effect wet bulb always shows low temperature than the dry bulb.

sunshine recorders

nanocurie

The major advantage of this type of recorder is its simplicity and ease of use. There are no moving parts and it thus requires very little maintenance. The unit can be used anywhere in the world with little or no modification to the design.

Tools used to measure length include a ruler, a Vernier caliper and a micrometer screw gauge. The diameter of objects like pipe and wire can be measured using vernier calipers and micrometer screw gauge.

a measure of the warmth or coldness of an object or substance with reference to some standard value. The temperature of two systems is the same when the systems are in thermal equilibrium. Abbreviation: T. Physiology, Pathology. the degree of heat in a living body, normally about 98.6°F (37°C) in humans.

Temperature Defined Temperature is a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object, which is a type of energy associated with motion.

1a : degree of hotness or coldness measured on a definite scale. b : the degree of heat that is natural to the body of a living being. c : abnormally high body heat running a temperature.

#142 temp → time The Latin root temp means “time.” This Latin root is the word origin of a fair number of English vocabulary words, including contemporary, temporary, and the Latin phrase tempus fugit.

Every student should know that chron is the Greek root for ‘time. ‘ From the chronometer to chronicling our lives, humankind is fascinated by ‘time.

The word root Bene finds its origins in the Latin word bene meaning “well” and is used to convey goodness, wellness, reverence, and honor or blessings.

-temp- comes from Latin, where it has the meaning “time. ” This meaning is found in such words as: contemporary, contretemps, extemporaneous, tempo, temporary, temporize.

ced-, cess- move, yield, go, surrender. Latin. cedere, cessus. accede, cede, concede, precede, procedure, proceed, procession, recede, secede, succeed, success.