| 单词 | subsolar point |
| 释义 | > as lemmassubsolar point 3. Astronomy and Geography. Of a point on the earth: having the sun in the zenith (directly overhead); relating to this point. Also in extended use. Esp. in subsolar point. Cf. sublunar adj. 4, substellar adj. 1. ΘΚΠ the world > the universe > sun > [adjective] > subsolar subsolar1845 the world > the earth > weather and the atmosphere > [adjective] > specific region of subsolar1845 stratospheric1909 tropospheric1914 ionospheric1933 stratospherical1934 mesospheric1940 magnetospheric1961 protonospheric1965 thermospheric1971 plasmaspheric1974 1845 A. Thom Nat. Storms 139 Allusion has been made to the sub-solar zone, lying between the trade winds of the two hemispheres, and to the vertical motion which air assumes in this situation. 1863 R. Fitzroy Weather Bk. v. 71 The rising sub-solar or intertropical part of the atmosphere. 1910 G. L. Hosmer Textbk. Pract. Astron. xiv. 175 If an observer measures an altitude of the sun he locates himself on the circumference of a circle whose centre is the sub-solar point. 1930 Science 17 Oct. 407/2 The resulting temperature of the sub-solar point on the moon was 374° K. 1938 P. V. H. Weems Air Navigation (ed. 2) xvi. 263 The geographical position of a heavenly body is the point on the earth's surface that has the body in its zenith; in other words the substellar, subsolar, or sublunar point. 2010 R. Schmude Comets ii. 67 The temperature [in the nucleus of a comet] rises as high as 336°±7°K or 145°±13°F at the sub-solar point. < as lemmas |
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