Natural phenomena are associated with weather changes in the climate at certain intervals, called the seasons of the year. Each such period is characterized by its meteorological anomalies.
Natural phenomena in spring
For 3 months of this time of year, the climate and living conditions of the entire fauna and flora change beyond recognition.
With the onset of March, nature is just beginning to come to life and awaken from the winter period of "hibernation". By this time, the heat of the sun's rays is still insufficient to completely melt the snow, but the air is already warming up noticeably. In March, the first spring natural phenomena make themselves felt (examples: ice drift, thawed areas, south wind). At this time, the clouds rise significantly and acquire a cumulus character.
From the first days of April, the time has come for the “grayest” meteorological anomalies. The names of the natural phenomena of this time are known to everyone: fogs, drizzling rains, less often thunderstorms. By the middle of the month, the snow is already completely disappearing, but the rivers can still be dangerous with a strong ice drift. Fortunately, the air temperature warms up every day, so the consequences of winter frosts will soon cease to make themselves felt. Also in April, dangerous springtime
natural phenomena are not ruled out
(examples: flood, heavy wind caused by the combination of the southern stream with the northern one).
As for the fauna, it begins to fully come to life by the first of May.
Spring phenomenon: rain
With warming, precipitation comes in liquid form. Such natural phenomena (see pictures below) are called rains or showers. This is a continuous stream of water directed vertically from heaven to earth. Clouds gradually accumulate moisture, and when pressure and gravity begin to prevail over them, precipitation falls. Since the air temperature is above 0 degrees, it means that water molecules do not crystallize into snowflakes. On the other hand, in rare cases, hail is possible closer to May.
Rain is included in the 5 natural phenomena of spring, bearing a possible danger to the economy and agriculture. Prolonged rainfall can flood not only the streets and private houses, but also the fields with seedlings and sprouts, which subsequently decay, therefore, productivity will drop significantly.
At the moment, it is customary to distinguish the following types of rain:
- ordinary (precipitation without such pronounced signs as power, duration);
- heavy rain (short rain, characterized by suddenness and power of precipitation);
- protracted (characterized by a long duration, up to several days, and a decrease in air temperature);
- short-term (characterized by transience and a sharp end to precipitation);
- snowy (characterized by lowering air temperature and partial crystallization of water molecules);
- mushroom (during such rain the sun continues to come to the earth);
- hail-shaped (short-term and dangerous rainfall, partially falling in the form of ice floes).
Spring Phenomenon: Thunderstorm
This meteorological anomaly is a separate type of rain that is not included in the traditional classification. Thunderstorm is a precipitation that occurs simultaneously with peals of thunder and lightning.
Over the course of several days, clouds accumulate particles of moisture picked up by a strong wind. Gradually, dark cumulus clouds form from them. During heavy rainfall and heavy winds, electrical tension arises between the surface of the earth and the clouds, during which lightnings form. This effect is always accompanied by strong thunder. Such natural phenomena (pictures you can see below) most often occur at the end of spring.
For a thunderstorm to occur, the following conditions are necessary: uneven heating of the lowest layers of air, atmospheric convection, or a sharp intensity of cloud formation in mountainous areas.
Spring phenomena: wind
This climatic phenomenon is a stream of air that is directed along the horizontal axis. Such spring natural phenomena as wind and storm (in rare cases) are characterized by high speed, force of impact, area of distribution and noise level.
From the point of view of meteorology, this climatic anomaly consists of indicators of direction, power and duration. The strongest air currents with medium gusts are called squalls. Relative to the duration, the winds are as follows: hurricane, storm, breeze, typhoon, etc.
Monsoons occur at some points on the Earth due to frequent temperature changes. Such global winds are characterized by a long duration (up to 3 months). If such air flows are caused by a difference in temperature relative to latitudes, then they are called trade winds. Their duration can reach up to a year. The border between monsoons and trade winds is called the atmospheric front. In spring and autumn, it is especially noticeable in countries with a temperate climate. In the tropical regions of the planet, it is thanks to the wind that the weather and air temperature so often change.
Spring phenomena: clouds
Closer to mid-March, the sky gradually begins to thin out. Now the clouds have clear boundaries. By themselves, they are the product of condensation of particles of water vapor in the upper atmosphere.
Clouds form above the earth's surface. The main condition for their formation is warm, moist air. It begins to rise into the upper
atmosphere, where, with a noticeable decrease in temperature, it stops at a certain height. In fact, clouds are made up of water vapor and ice crystals. Their large concentration at high concentration forms cumulus clouds.
All spring natural phenomena have their own forms of uniqueness, called meteorological identifiers in science. At high temperatures, the clouds are filled with droplet elements, and at low temperatures they are filled with crystalline. Regarding this criterion, there is a separate classification of the phenomenon. So, clouds are divided into rain, thunder, cirrus, layered, cumulus, nacreous, etc.
Spring Phenomena: Snow Melting
As the air temperature rises, frozen water crystals begin to gradually turn into water. This process is called snowmelt. All frozen precipitation is susceptible to such dissolution if the air temperature rises to 0 degrees. These seasonal phenomena in nature occur only in the spring. The exact time up to a month is set depending on the current climate.
The snowmelt process is noticeably accelerated with rainfall. After which small temporary water bodies are formed. The fastest snow melts on flat terrain, where there are no barriers to the wind or a canopy from precipitation. In the forest, this process can drag on for a month. In this case, there is a high probability of rising groundwater levels.
Often the snow begins to evaporate in frosty weather. This natural phenomenon is called sublimation. Under the influence of sunlight, particles of water pass from a solid to a gaseous state.
Spring phenomena: ice drift
This anomaly is considered the most dangerous of natural phenomena at this time of year. This phenomenon is the movement of semi-melted ice on lakes and rivers under the influence of a strong wind or current. The greatest movement is observed in the middle of the reservoir. Such spring natural phenomena are characteristic for March, when the sun's rays are able to sufficiently warm the temperature of air and soil.
On rivers, ice drift is often accompanied by congestion. In large bodies of water, this phenomenon is determined by the drift of fragments under the influence of wind. The intensity of the movement of ice, as well as its nature, directly depends on current climatic conditions, opening time, the structure of the river bed and the hydraulic properties of the water flow.
The duration of this process in the spring varies from 3-4 weeks. Here, the landscape and climate play an important role.
Spring Phenomena: Thawed
Usually this process begins in early March, but depending on climatic conditions, the timing may move to mid-April. Protalin is a place where snow stood in frosty weather, and a kind of funnel arose on it with warming. Such spring natural phenomena are very interesting in the study.
First of all, thawed patches form around tree trunks, since heat comes from the root system of plants, backed up by solar synthesis. Further, the process affects the fields and swamps. Thistles can be of different colors, depending on how the surface looks (earth, grass, leaves). A similar situation exists with their form. On the fields, the thaw areas are elongated, like beds, in the gardens rounded (projection of tree trunks).
This process begins to take effect at an average daily temperature of -5 degrees and above.
Spring Phenomena: Awakening of Flora
The appearance of thawing around the trees indicates that the plants began active sap flow. These seasonal phenomena in nature mean only one thing - the awakening of the flora after a long winter passive activity.
This can be verified very simply. To do this, it is enough to pierce the bark of a tree with a needle or a thin knife. If a transparent sweet liquid of pale reddish color appears at this place, then the sap flow is in full swing. This indicates that nature is preparing for landscaping.
Soon, the buds will appear and bloom on the branches. In the second half of spring, thanks to the wind and insects, the flora will receive pollination. Therefore, in the near future we can expect a crop.
Spring phenomena in wildlife
As you know, this time of year is marked by the return of birds to their native penates from warm countries. This primarily concerns rooks. They are considered the first messengers of spring. Mass migration of birds occurs closer to the end of March, when the night air temperature rises to +10 degrees.
Also, one of the indicative processes in wildlife that characterize the onset of spring is the molting of animals and the awakening of wild animals from hibernation. Change of wool occurs in March, although some representatives of the fauna may have it in the fall.
It is very important to know all these spring natural phenomena. No wonder natural science is included in the main curriculum of school subjects. To know the fundamental processes of climate and nature is the duty of every person on the planet.