The average albedo of Earth is about 0.3. [15] This is far higher than for the ocean primarily because of the contribution of clouds. Earth's surface albedo is regularly estimated via Earth observation satellite sensors such as NASA's MODIS instruments on board the Terra and Aqua satellites, and the CERES instrument on the Suomi NPP and JPSS.

It’s calculated by averaging the albedo of all Earth surfaces – including the land, ocean, and ice. Above the Earth surface, clouds reflect large amount of sunlight out to space too. Earth's planetary albedo is about 31% meaning that about a third of the solar energy that gets to Earth is reflected out to space.

2018年7月16日 · This dataset provides global Earth surface albedo products. The albedo has an impact on the amount of energy that Earth absorbs from the Sun and, therefore, is an important variable in climate and weather studies. The surface albedo quantifies the fraction of irradiance reflected by the surface of the Earth.

What is Albedo? Albedo is the fraction of light that a surface reflects. If it is all reflected, the albedo is equal to 1. If 30% is reflected, the albedo is 0.3. The albedo of Earth's surface (atmosphere, ocean, land surfaces) determines how much incoming solar energy, or light, is immediately reflected back to space.

2015年1月26日 · The solar energy reflected from Earth is a fundamental component of the Earth's energy balance, and processes that define the albedo of Earth are of elementary relevance to the Earth's climate. This study reviews our understanding of the Earth's albedo as it has progressed to the present time and provides a global perspective of our ...

What is albedo? When sunlight reaches the Earth’s surface, some of it is absorbed and some is reflected. The relative amount (ratio) of light that a surface reflects compared to the total incoming sunlight is called albedo. A surface with a high albedo …

2025年1月3日 · Surface albedos vary by location, season, and land cover type. The albedo of unvegetated ground devoid of snow ranges from 0.1 to 0.6 (10 to 60 percent), while the albedo of fully forested lands ranges from 0.08 to 0.15.

Albedo directly controls the energy budget between the Earth’s surface and atmosphere by modulating net radiation and significantly influences the climate at different spatial and temporal scales. As such, albedo is an important input variable in all types of climate models.

Earth Albedo refers to the amount of solar radiation reflected by the Earth's surface back into space. It is a key factor in Earth's energy balance, with an average albedo of 0.31, indicating that approximately one-third of the incoming solar radiation is reflected.

The Earth has an average albedo of about 0.3, which means that Earth reflects an average of about one-third of the sunlight it receives back into space. The table below shows approximate albedo values for a variety of surfaces and materials. What do you notice?