Radiation on Earth

Solar radiation on planet Earth

What is solar radiation and how does it reach our home, the Earth? Enter to find out what percentage of radiation is absorbed by the planet.

Tungurahua volcano

Find out why volcanoes erupt

Don't you know why volcanoes erupt? Enter to find out the origin of one of the most impressive and beautiful demonstrations of nature.

Cirrus vertebratus

Cirrus clouds, curious as few

Cirrus clouds are the most curious. From children we see characters in them, and as adults we like to continue doing it. Enter to find out what types there are.


How heat affects animals

The very long heat wave that the whole country is suffering not only negatively affects people, animals also suffer and suffer from it.

orographic cloud formation

How orographic clouds form

Pay close attention if you want to know more about those clouds that are created on top of mountains and that are known as orographic clouds.

thermal amplitude

What is the thermal amplitude?

Thermal amplitude is nothing more than the difference between the highest and lowest temperatures of a place recorded in a given time.

Water quality in Europe is even worse than expected

The Water Framework Directive proposes to the European Union a substantial improvement in the quality of fresh water by 2015. To this day this objective is far from being fulfilled, the toxic levels in aqueous bodies are still extremely high.

Once upon a time Mars, a short story of its climatic evolution

Of the characteristics of Mars observable from Earth through a telescope we can highlight an atmosphere with white clouds although not as extensive as on Earth, seasonal changes very similar to those on Earth, 24-hour days, the generation of sand storms and the existence of ice caps at the poles that grow in winter. Looks familiar, right?

Winter Olympic Games. Is your continuity in danger?

Only six of the cities that already held the Winter Olympics in the past century would today be cool enough to host them. Even for the most conservative climate estimates, only 11 of the 19 cities that hosted the Winter Olympics could do so in the coming decades according to a survey conducted by the University of Waterloo (Canada) and the Managemen Center in Innsbruck (Austria).

Geothermal energy. Greenhouses and their application in agriculture

Geothermal energy is that energy that can be obtained by taking advantage of the internal heat of the Earth. This heat is due to several factors, its own remaining heat, the geothermal gradient (increase in temperature with depth) and radiogenic heat (decay of radiogenic isotopes), among others.

Earth Wind Map, a hypnotic and interactive weather map

A new computer application, Earth Wind Map, visible on the internet and within the reach of all users, allows us to observe in a visual, aesthetically beautiful way and, what is more important, updated data on wind currents that are taking place along the way. across the planet.

Tropical rainfall in the northern hemisphere, why is it more intense?

Reviewing the global maps of world precipitation we can observe most of the tropical precipitations occur in the northern hemisphere. Palmyra Atoll, at a latitude of 6 degrees north, receives around 445 cm of rain per year, while another place, located at the same latitude south of the equator, receives only 114 cm.

Larger, longer-lasting storm clouds due to pollution

Most researchers thought that air pollution causes larger, longer-lasting storm clouds by making storm fronts more susceptible to air currents, and causing internal convection. In this study, he observed that pollution, as a phenomenon, makes clouds more durable but, in a different way than previously thought, by a decrease in the size of their ice particles and a decrease in the total size of the cloud. This difference directly affects the way scientists represent clouds in climate models.

Places so cold that it seems impossible for people to inhabit them

Citizens of places like Verkhoyansk, Yakutsk or Oymyakon (both in Russia) live lives very different from ours, at least in winter. For example, drivers in these cities leave their cars torn up in parking lots for long hours while shopping or running errands, often having to heat the lubricating oil in their cars with a blowtorch to defrost it.

The lowest temperature ever recorded on earth

The coldest place on the planet's surface is located in an Antarctic mountain range on the eastern Antarctic plateau where temperatures can reach values ​​below 92ºC below zero on a clear winter night.

Inverted rainbow

Does the inverted rainbow exist?

The inverted rainbow is a meteorological phenomenon that requires different circumstances than the normal rainbow. The place in the world where it is most common to see them is the North Pole, although climate change would be causing them to take place in more temperate places.

New Orleans Katrina

Learn what to do during extreme weather events

The Federal Emergency Management Agency of the United States has offered a series of guidelines to its citizens on how to protect themselves and their families during extreme weather events, which are dangerously increasing in number due to climate change.

Cumulus humilis

How do the clouds dissipate?

There are factors that can intervene to cause the disappearance of water droplets or ice crystals from clouds such as heating of the air, precipitation and mixing with the drier surrounding air.


Cloud formation mechanisms

The various types of vertical movements that can lead to cloud formation are: mechanical turbulence, convection, orographic ascent, and slow, long ascent.

Cumulonimbus, storm cloud

The Cumulonimbus

According to the WMO, the Cumulonimbus are described as a thick and dense cloud, with a considerable vertical development, in the form of a mountain or huge towers. It is associated with storms.


The Cumulus

Cumulus clouds are vertically developing clouds formed mainly by vertical currents favored by the heating of the air at the Earth's surface.

The Stratus

Stratus are made up of small water droplets although at very low temperatures they can consist of small ice particles.

Overview of the nimbostratus

The Nimbostratus

Nimbostratus are described as a gray, often dark layer of clouds, with an appearance veiled by the precipitation of rain or snow falling more or less continuously from it.


The Altocumulus

Altocumulus are classified as medium clouds. This type of cloud is described as a bank, thin layer or layer of clouds composed of very varied shapes.


The Cirrocumulus

Cirrocumulus trees consist of a bank, thin layer or sheet of white clouds, without shadows, composed of very small elements. They reveal the presence of instability at the level at which they are.


The Cirrus

Cirrus are a type of high cloud, usually in the form of white filaments made up of ice crystals.

Freezing water

Condensation, freezing and sublimation

When humid air cools and passes a threshold, the water vapor condenses on condensation nuclei contained in the air. Other related processes are freezing and sublimation.

Earth energy balance

Albedo and Earth's Energy Balance

Albedo is the relationship between the reflected energy and the incident energy in the wavelength of visible light and makes the planets shine:

New Saffir Simpson Scale

New classification of the Saffir-Simpson hurricane scale

The National Hurricane Center of the United States (NHC) has published a modification in the Saffir-Simpson Hurricane scale, which measures the intensity of winds from tropical cyclones when they reach the category of hurricanes.

Radiation on the earth's surface

The fundamental input of radiation on the planet is the radiation emitted by the Sun. The energy of these radiations is transmitted to the Earth in the form of electromagnetic waves.

Synoptic maps

The synoptic map is a graphical representation of the atmospheric pressure field. In it we represent elements such as isobars, high and low pressure centers and frontal systems.

structure atmosphere

Structure of the Atmosphere (I)

The atmosphere is divided according to variables, such as pressure, temperature or density, among others, and broadly we distinguish Homosphere and Heterosphere


NAO index. Positive and negative phases

The NAO index measures pressure differences between Iceland and Lisbon or Gibraltar. Positive and negative phases can occur depending on the pressure difference.

catabatic flow, functioning

Catabatic wind

The katabatic wind is a type of mountain breeze, the ground cools at night and the air in contact with that surface descends by gravity.

humidity between the trees


One of the most used terms in meteorology and in meteorological reports is that of relative humidity. Although I ...

electric storm

What is meteorology?

Meteorology is a scientific and technical discipline that is responsible for studying and predicting the various phenomena that occur ...