Blackbody Radiation/ Planetary Energy Balance. *Electromagnetic Spectrum *Blackbody radiation – temperature *Sun’s heat at the earth *Earth’s blackbody radiation to space *Planetary radiation temperature of Earth *Surface temperature of Earth. 1000. 100. 10. 1. 0.1. 0.01.By alina
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BASIC RADIATIVE TRANSFER. RADIATION & BLACKBODIES. Radiation Flux (F) [W/m 2 ] Intensity (I) [W/m 2 /sr] Monochromatic Intensity (I l ) [W/m 2 /sr/nm]. Objects that absorb 100% of incoming radiation are called blackbodies
PHYS 721. http://userpages.umbc.edu/~martins/PHYS721/. Atmospheric Radiative Transfer. Motivation, applications and issues Definitions and Radiation Quantities Thermal Emission/Absorption Basics Solar and Terrestrial Spectra From Single to Multiple Scattering
The Proximity Effect of LBGs:. Radiative Transfer Simulations. Antonella Maselli, OAArcetri, Firenze, Italy Collaborators: A.Ferrara, M. Bruscoli, S. Marri & R. Schneider. Marri et al 2003, in preparation Bruscoli et al, 2003,MNRAS,343,L45 Maselli et al, 2003,submitted to MNRAS.
RADIATIVE HEAT TRANSFER. Thermal radiation is the electromagnetic radiation emitted by a body as a result of its temperature. There are many types of electromagnetic radiation; thermal is only one of them. It propagated at the speed of light, 3×10 8 m/s.
Introduction to radiative transfer. Robert Hudson. Electromagnetic spectrum. Schematic of a wave. WAVELENGTH. DISTANCE BETWEEN SUCCESSIVE PEAKS GIVEN THE SYMBOL λ MANY UNITS USED : (A) MICRON, 10 -6 METERS (B) NANOMETER, 10 -9 METERS (C) ANGSTROM, 10 -10 METERS. FREQUENCY.
Lecture 3 Radiative Transfer. Lower Solar Atmosphere has two layers: Photosphere - 100 km thick; opaque Chromosphere - 10,000 km thick; optically thin; cooler. (I) Local Thermodynamic Equilibrium Equation of Transfer: Optical Depth. Thermodynamic Equilibrium
Radiative Transfer – An Overview. Acknowledgements. http://cimss.ssec.wisc.edu/goes/comet/radiative_transfer.html www.weatherchaos.umd.edu/class-presentations/Hudson_Intro_rad_trans.ppt http://timeforchange.org/radiation-wavelength-and-greenhouse-effect. Outline. What is radiative transfer?
Radiative Transfer Model Vijay Natraj. Why RADIANT?. The optical depth sensitivity of doubling The necessity of re-computing the entire RT solution if using a code such as DISORT if only a portion of the atmosphere changes