Evaporation Temperature Lab Report

EXECUTIVE SUMMARY:

The climate is long term changes of atmospheric phenomenon and weather is a short term change. Weather tells about the present climate conditions occurring in the same area at the same time prevailing for no longer than two weeks. From time to time they both are exchangeable, but vary in distance of the time period they measure.

Meteorology is the science of the atmosphere. “Meteorology” word originates from the Greek word “meteoron” which implies something that passes high in the sky. The atmospheric condition is really important for human life because we wholly depend on agriculture and most part of it depends on weather patterns. Meteorologists are the individual who studies meteorology. He uses scientific principles

It is a thermometer which is placed on the Earth Surface with the bulb of thermometer just in contact with the tips of grass. It is placed just at 5 cm above ground. It is measured the dew drops that fall in whole night. That temperature of dew drops has shown the temperature of the Earth Surface.

Picture of grass minimum thermometer. Source UOG.

EVAPORATION PAN:

Evaporation pan is also known as “Evaporimeter”. It is used to measure the rate of evaporation of water into the atmosphere. It is usually mounted on a wooden post about 1000 mm above the ground. It consists of porous, ceramic plate filled with Water to a few centimeters below the rim. The pan is filled with water by using a tube or pipe. The thermometer suspended to measure the level of water and records the temperature of water in the Pan.

The measurement of water is important in agriculture, irrigation drainage system. For a given area this is proportional to the depth of liquid water lost in a day from the whole area and evaporation is usually expressed in this way.

Picture of evaporation Pan.

Source UOG.

RAIN

Stratus St Running clouds 6,7 with bad or good weather 5000 ft or 4000 ft

4. Cumulonimbus Cb Lightning & thundering 9 2500 ft or 3000 ft

HYGROMETRIC TABLE:

Tables that are set up to easily convert the measured dry- and wet-bulb temperatures to common humidity measures like dew point or relative humidity. By using these tables, dry and wet bulb temperature will be differentiated and relative humidity also expressed.

3.2 OPERATION DOWNSTREAM

Through these instruments SYNOP and MATAR data will be established and sent to the Lahore major Meteorology Department and then publish in newspapers.

SYNOP:

SYNOP is used for weather reporting for land or surface station either it is automated or manned. It is a numerical code and is reported in five digits only. It is reported of three hour interval in the special international coding form. The SYNOPTIC code is a WMO standard and follows the Greenwich Mean Time (GMT). It contains almost four sections in which section 3 is not used at this station. It does not matter that in what time zone the station is present. The time is given at which the SYNOPTIC coding is given. Times are given below:

Sr. no# GMT PST

1. 0000 05:00 A.M

2. 0300 08:00 A.M

3. 0600 11:00 A.M

4. 0900 02:00 P.M

5. 1200 05:00