. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 22-4 Remote Sensing of the Ocean 56t LEGEND EQIVAIENT ILACKIOOY TEMFEtATURE C I <626 â¡ 626-69« czn 691-73 4 â â 734-770 / ETHIOPIA C^flNDIAN r\OCEAN 52- 54' 14-N. r 46-E Figure 22-2 NIMBUS I determination of sea surface isotherms (°F) along the Somali coast related to upwelling of cold water in that region (after Allison and Kennedy, 1967). Theory The notation and some of the discussion in this section follows that of Holter (1970). The
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 22-4 Remote Sensing of the Ocean 56t LEGEND EQIVAIENT ILACKIOOY TEMFEtATURE C I <626 â¡ 626-69« czn 691-73 4 â â 734-770 / ETHIOPIA C^flNDIAN r\OCEAN 52- 54' 14-N. r 46-E Figure 22-2 NIMBUS I determination of sea surface isotherms (°F) along the Somali coast related to upwelling of cold water in that region (after Allison and Kennedy, 1967). Theory The notation and some of the discussion in this section follows that of Holter (1970). The fundamental radiation equation of Plank (1900) gives the spectral distribution of radiation from a self-emitting perfect radiator, called a blackbody, with uniform temperature. This theoretical law agrees with experimental results and applies to all regions of the electromagnetic spectrum. Plank's law, stated in terms of spectral radiant emittance, is WBX = C, X"5 [exp(C2/XT)-l]-! (22:1) and has units of erg/cm2 sec jum. Ci and C2 are well known radiation constants; X is wavelength and T is the temperature of the emitting surface. Because most objects are not perfect radiators, a radiative efficiency factor, e^, termed spectral emissivity, is defined as ex = Wx/WBX (22:2) where W\ is the spectral radiant emittance of an imperfect radiator, called a greybody. Depending on the 916. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories; Environmental Research Laboratories (U. S. ). Washington, D. C. : U. S. Dept. of Commerce, Environmental Science Services Administration, Research Laboratories : For sale by Supt. of Docs. U. S. G.
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