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- Heat resulting from the absorption of incoming shortwave radiation is emitted as longwave radiation. Radiation from the warmed upper atmosphere, along with a small amount from the Earth's surface, radiates out to space. Most of the emitted longwave radiation warms the lower atmosphere, which in turn warms our planet's surface.
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Outgoing longwave radiation plays an important role in planetary cooling. Longwave radiation generally spans wavelengths ranging from 3–100 microns (μm). A cutoff of 4 μm is sometimes used to differentiate sunlight from longwave radiation. Less than 1% of sunlight has wavelengths greater than 4 μm.
Mar 9, 1997 · Longwave radiation is radiation with wavelengths longer than 4 micros. Also referred to as infrared radiation or terrestrial radiation. Definition source: National Aeronautics and Space Administration.
The monthly Outgoing Longwave Radiation (OLR) Climate Data Record (CDR) measures the amount of terrestrial radiation released into space, as well as the amount of cloud cover and water vapor that intercepts that radiation in the atmosphere.
Oct 22, 2021 · At equilibrium, the outgoing longwave radiation (OLR) and the reflected shortwave radiation (RSW) (W ⋅ m −2) at the top of the atmosphere (TOA) compensate the Incoming Solar Radiation (ISR)...
- Simon Whitburn, Lieven Clarisse, Marie Bouillon, Sarah Safieddine, Maya George, Steven Dewitte, Hélè...
- 2021
Long Wave Radiation The longwave radiation term Qb represents the electromagnetic energy that is radiated outward by the earth (land and sea) at a rate depending on the absolute temperature of the local surface.
May 24, 2024 · Longwave radiation. The energy absorbed by the surface is radiated from the Earth as terrestrial longwave radiation (L↑). The amount of energy emitted is primarily dependent on the temperature of the surface. The hotter the surface the more radiant energy it will emit.
…emitted from Earth is called long-wave radiation; it falls within the infrared portion of the spectrum and has typical wavelengths of 4 to 30 micrometres (0.0002 to 0.001 inch). Wavelengths of radiation emitted by a body depend on the temperature of the body, as specified by Planck’s radiation law.
