subpolaradj.

1685 D. Abercromby Disc. Wit v. 55 Neither do I take it to be a certain mark of Wit, our being born in this Climate rather than in that, in a hot Country rather than in a cold, in the Subpolar Regions, rather than under the Equinoctial Line.

1760 W. Hilary Nature, Prop., & Laws Motion Fire 66 It is observed that a much greater quantity of Light is emitted from the Sun, to the earth at the subpolar regions during the summer months..than there is emitted to places which are situated within the Torrid Zone.

1826 W. Kirby & W. Spence Introd. Entomol. IV. xlix. 485 Beginning at 84° N. L. he [sc. Latreille] has seven Arctic ones, which he names polar, subpolar, superior, intermediate, supratropical, tropical, and equatorial.

1870 R. A. Proctor Other Worlds than Ours v. 120 It follows that there is a marked difference between the sub-equatorial and the sub-polar regions in Jupiter.

1925 Sci. Monthly May 476 The possibility that the poles may have wandered sufficiently so that the ancient glaciated areas, southern Illinois, for example, were subpolar, has been repeatedly suggested.

1946 A. Nelson Princ. Agric. Bot. xix. 372 A summer-flowering plant indigenous in the sub-polar regions is harmonized to a day-length of 15 to 20 hours.

2005 Nature 23 June 1007/2 A torrent of fresh water caused a famous ‘salinity anomaly’ in the 1960s, but had little effect on ocean currents because it mostly ended up in remote subpolar basins.

1823 Philos. Trans. (Royal Soc.) 113 486 Dr. Brinkley has given 44 sub-polar observations of α Lyræ with the observed refractions.

1876 C. H. Davis Narr. North Polar Exped. Ship Polaris iv. 96 The latitude of the southern entrance of Repulse Harbor, determined..by a meridian subpolar observation.

1913 W. Bowie Astron. (U.S. Coast & Geodetic Surv.) (ed. 5) 109 When a subpolar star is used slight changes will be necessary, similar to those described for the case where the observing list is prepared in terms of the declinations.

1949 School Sci. & Math. Oct. 557 P is the earth's pole, sub-polar point of the celestial sphere.

2007 J. W. Dauben in V. J. Katz et al. Math. Egypt, Mesopotamia, China, India, & Islam iii. 220 From the division of day and night at the spring equinox to the division of day and night at the autumn equinox, there is always sunlight at the subpolar point.