| 单词 |
pyranometer |
| 释义 |
pyranometer|paɪərəˈnɒmɪtə(r)|
[See quot. 1916 and -meter.]
An instrument for measuring the amount of radiation incident from the entire sky on a horizontal surface.
1916Abbot & Aldrich in Smithsonian Misc. Coll. LXVI. No. 7. 2 The name Pyranometer, selected for the instrument we have devised, is taken from Greek words (πῦρ, fire; ἀνά, up; µέτρον, a measure) signifying that which measures heat above. The name was chosen with reference to the fact that the instrument is designed to measure the energy of radiation to or from a complete hemisphere lying above the measuring surface. 1967Jrnl. Appl. Meteorol. VI. 688 (heading) An integrating pyranometer for climatological observer stations and mesoscale networks. 1973Nature 16 Feb. 448/2 These data were obtained by subtracting the solar radiation measured by a temperature compensated Eppley pyranometer from the mean hemispherical all-wave radiation obtained from three Fritschen-type net radiometers converted to hemispherical operation. |
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