Tag: geography

Rain gauge can accurately measure the rainfall without any loss due to evaporation. It is an instrument used for determining the depth of precipitation that occurs over a unit area. Thus, it measures rainfall. One liter of rainfall per meter squared is equivalent to one millimeter of measured precipitation. A funneled aperture of 150-170 cm is found in standard rain gauges. They are designed as a simple passive collector. A graduated measuring glass is used for determining the amount of precipitation. For the measurement of rainfall, the rain gauze should be placed 30 cm above the ground to prevent the splashing of rainwater.

A standard rain gauge has a funnel with a diameter of 20.3 cm while the measuring cylinder is of 12.5 cm in height. If rain intensity is beyond 12.5 cm, the classification for rainfall is “Very Heavy Rainfall”. Any rain water in excess of 12.5 cm overflows into an outer metal cylinder. This prevents loss of rain water which may otherwise occur through splashing out of the funnel or spilling. The height of 12.5 cm was determined as per the commonly recorded pattern of rainfall in 24 hours. 

It is asking about the instrument not the graph. The Instrument is Rain gauge.

A place, where weather conditions are constantly monitored and recorded, is called a weather station. All data related to weather and environment is recorded here. A weather station has sensors. Sensors include a thermometer to take temperature readings and a barometer to measure the pressure in the atmosphere. There are also sensors to measure rain, wind, humidity and more. Weather Station even has computers having internet connection so that data can be analyzed properly.

A barometer is a meteorological instrument which is used to measure atmospheric pressure. Atmospheric pressure is balanced by a column of mercury in case of a mercury barometer. Mercury is used because its height can be precisely measured. A barometer can also be used to measure altitude because atmospheric pressure changes with distance above or below sea level. There are two types of barometers:- mercury and aneroid. 

Agricultural meteorology is the branch of meteorology that deals with the relationship of weather and climate to crop and livestock production and soil management. Agricultural Meteorology involves the integration of climatological and meteorological data and techniques into agricultural problems, such as crop production, soil moisture, moisture stress, and migration of pests. A good background in basic math and sciences is required.

Peninsular India experience peak summers earlier when compare to north India due to the apparent northward movement of the sun, the global heat belt shifts northward. In March, the highest temperature is about 38° Celsius, recorded on the Deccan plateau. In April, temperatures in Gujarat and Madhya Pradesh are around 42° Celsius. In May, temperature of 45° Celsius is common in the north-western parts of the country.

A climograph is a graphical representation of monthly average temperature and precipitation at a location. From this representation, one may observe the variations in elements, such as humidity levels, which help to indicate the pattern of elements of weather and climate. 

Raindrops start to form in a roughly spherical structure due to the surface tension of water. This surface tension is the "skin" of a body of water that makes the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.