Natural phenomena are related to weather climate change at certain intervals called seasons.Each period is characterized by its meteorological anomalies.
Natural phenomena Spring
3 months this time, the climate and living conditions of the entire fauna and flora are changed beyond recognition.
With the onset of March the nature is just beginning to come to life and wake up from the winter "hibernation".By this time the heat from the sun is not enough to completely melt the snow, but the air had warmed considerably.In March, manifest themselves first spring natural phenomena (examples: drifting ice, thawed, the south wind).At this time, the clouds lifted and gain significantly cumulus character.From the first days of April comes the time for the "gray" weather anomalies.Names of natural phenomena of this period are known to everyone: fog, drizzle, sometimes storms.By mid-month, snow has completely disappeared, but the river can still be dangerously strong ice drift.Fortunately, the temperature warms up every day, so the effects of the winter frosts will soon cease to give yourself to know.Also in April, the spring can not be ruled dangerous natural phenomena (examples: floods, heavy wind caused by the compound of the southern flow north).
As for fauna, it starts to come to life in full by the beginning of May.
Spring phenomenon: rain
warming rainfall come in liquid form.Such natural phenomena (see below image) is called rain or showers.It is a continuous stream of water directed vertically from the sky to the ground.Clouds gradually accumulate moisture, and when the pressure and gravity begin to prevail over them, precipitation.As the air temperature is above 0 degrees, it means that water molecules do not crystallize in the snowflakes.On the other hand, in rare cases, closer to May can grad.Dozhd includes 5 natural phenomena spring bearing probable danger to the economy and agriculture.Prolonged rainfall can flood the streets and not only homes but also fields with saplings and sprouts, which later will rot, therefore, yields will fall at times.
At the moment, decided to allocate the following types of rain:
- normal (precipitation without such distinct features, like power, duration);
- showers (intermittent rain, characterized by the suddenness and power loss);
- protracted (characterized by long duration, up to several days, and a decrease in air temperature);
- briefly (different transience and the sharp end of rainfall);
- snow (characterized by a decrease in temperature and partial crystallization of water molecules);
- mushroom (during this rain on the earth continues to receive sunlight);
- gradoobrazny (short-term and dangerous rain which falls partly in the form of pieces of ice).
Spring phenomenon: thunderstorm weather
This anomaly is a separate view of the rain outside the traditional classification.The storm is a precipitation which takes place simultaneously with the thunder and lightning.
Within a few days the cloud particles accumulate moisture picked up by strong winds.Gradually, they form a dark cumulus clouds.During precipitation with high power and heavy wind between clouds and the ground, an electric tension, during which formed lightning.This effect is always accompanied by a great thunder.Such natural phenomena (pictures you can see below) most often occur at the end of thunderstorms vesny.Dlya requires the following conditions: the most uneven heating of the lower layers of air, atmospheric convection or sharp rate of formation of clouds in the mountains.
Spring phenomenon: the wind
This climatic phenomenon is the air flow, which is directed in the horizontal axis.Such spring the phenomena of nature, the wind and the storm (in rare cases), characterized by high speed, impact force, the area of ​​distribution and noise levels.
terms of meteorology, this climatic anomaly consists of the indicators direction, power and duration.The strongest air currents with average gusts called squalls.Regarding the duration of the winds are as follows: hurricane, storm, breeze, the typhoon and so on. D.
In some points of the Earth due to frequent temperature changes occur monsoons.Such global winds are characterized by long duration (up to 3 months).If such air currents caused by the temperature difference with respect to latitude, they are called trade winds.Their duration can be up to a year.The boundary between the monsoons and trade winds known as atmospheric front.In spring and autumn it is particularly noticeable in countries with temperate climates.In tropical areas of the world precisely because of the wind so often changing weather and temperature.
Spring phenomenon: clouds
Toward the middle of March, the sky gradually begins to be diluted.Now the clouds have clear boundaries.By themselves, they are the product of condensation of water vapor particles in the upper atmosphere.Clouds are formed above the earth's surface.The main condition for their formation is the warm moist air.He begins to climb into the upper atmosphere where, with a marked decrease in temperature is stopped at a certain height.In fact, it consists of a cloud of water vapor and ice crystals.A large cluster of them at a high concentration forms cumulus clouds.
All spring phenomena of nature have their own unique form, referred to in meteorological science identifiers.At high temperatures, the cloud droplet elements are filled, and the low - crystalline.Regarding this criterion, there is a separate classification of phenomena.So, clouds are divided into rain, thunderstorms, cirrus, stratus, cumulus, pearl and so on. D.
Spring phenomenon: snowmelt
With increasing temperature characteristics of air frozen water crystals are gradually converted into water.This process is called the melting snow.Such dissolution subject to all kinds of frozen precipitation, if the temperature rises to 0 degrees.These seasonal phenomena in nature occur in the spring.Current time is set up to a month depending on the current climate.
snowmelt process significantly accelerated with the rain.Then form small temporary pools.The fastest way to the snow melts on a flat area where there are no barriers or wind shelter from rain.In the forest, this process can drag on for a month.In this case, the probability of rising groundwater vod.Neredko snow begins to evaporate in the cold weather.This natural phenomenon is called sublimation.Under the influence of sunlight the water particles pass from solid to gaseous state.
Spring phenomenon: the break-up
This anomaly is considered to be the most dangerous natural phenomena in this time of year.This phenomenon is the movement of half-melted ice floes on lakes and rivers under the influence of a strong wind or current.The greatest movement occurs in the middle of the pond.Such spring natural phenomena characteristic of March, when the sun's rays are capable enough to warm the air temperature and soil.
the rivers break up often accompanied by congestion.In large bodies of water, this phenomenon is determined by the drift of the debris in the wind.The intensity of the movement of ice, like his character, is directly dependent on current climatic conditions, time of opening, the structure of the river bed and the hydraulic properties of the water flow.
duration of this process in the spring varies between 3-4 weeks.There are important landscape and climate.
Spring phenomenon: thawed patch
This process usually begins in early March, but depending on the climatic conditions the timing may move to the middle of April.Thawed called place in frosty weather was snow and warming it came kind of funnel.Such spring natural phenomena are very interesting in the study.The first thing thawed formed around the trunks of trees, because of the root system of plants produce heat, supported by solar synthesis.The process involves the fields and marshes.Thawed may be a different color, depending on the appearance of the surface (ground, grass, leaves).A similar situation is with their form.On the sidelines of thawed elongated, like the beds in the gardens - rounded (the projection of tree trunks).
This process begins to take effect when the average daily temperature of -5 degrees and above.
Spring phenomenon: the awakening of the flora
Occurrence thawed around the trees suggests that the plant gets sap flow.These seasonal phenomena in nature only mean one thing - the awakening of the flora after a long winter of passive activity.
You can check this very easily.It's enough to pierce the bark of a tree with a needle or a thin knife.If at this point will make clear sweet liquid light reddish color, hence sap flow in full swing.This shows that nature is preparing for planting.
Soon the branches will bloom and buds.In the second half of the spring, thanks to the wind and insects, flora get pollinated.Therefore, in the near future we can expect a harvest.
spring phenomenon in nature
As you know, this time of year marks the return of birds to their hearth and home from warmer countries.In particular this applies to the rooks.It is considered the first heralds of spring.Mass migration of birds takes place towards the end of March, when the night temperature rises to +10 gradusov.Takzhe one of the show trials in nature that characterize the onset of spring, moulting animals are waking from hibernation and wild animals.Change wool occurs in March, although some representatives of fauna it can be and fall.
very important to know all of these natural phenomena spring.Natural history wonder included in the main program of school subjects.Know the basic processes of the climate and nature - the duty of every person on the planet.
