orographicaladj.

1803 F. W. Blagdon tr. P. S. Pallas Trav. Southern Provinces Russ. Empire II. 100 In an orographical [Ger. orographischer] respect..Tshorguna deserves every attention.

1853 J. Marcou Geol. Map U.S. 60 Topography is one of the most important points for a geological map; for, without it, it is materially impossible to describe and understand the orographical structure of a country.

1880 S. Haughton Six Lect. Physical Geogr. v. 205 An Orographical Map of Africa.

1903 Amer. Jrnl. Sociol. 9 96 This solidarity of geographical and orographical systems is the basis for the constant solidarity, past and future, of societies.

1952 G. H. Dury Map Interpr. iii. 23 It follows that the hills are outliers, orographical as well as geological, of the cuesta.

2001 Asian Folklore Stud. 60 1 In contrast to the first (cosmogonic) part of the myth, this second part has the character of an orographical myth, i.e., a myth about mountains.

1909 H. R. Mill in Geogr. Teacher 5 75 Placing this established fact of the dependence of the annual rainfall on the height or the configuration of the land side by side with the equally established fact of the complete independence of heavy cyclonic or thunderstorm rains on terrestrial conditions, we are obliged to divide rain into two classes; one greater in intensity but shorter in duration, and, in aggregate, trifling in amount, which we may call meteorological rain (in thunderstorms and cyclones), and the other kind of rain, of less intensity but greater frequency and duration, we may call orographical rain.

1947 Q. Jrnl. Royal Meteorol. Soc. 73 16 The orographical rain was well developed over North Wales and the English Lake District.

2001 Project Finance (Nexis) 1 Oct. 62 These geographical areas, located between the Iberian and Betic Mountain Ranges, form natural orographical corridors for winds flowing between the central Spanish plateau and the Mediterranean Sea.