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The study of the physical geography of mountains and mountain ranges.

or′o·graph′ic (ôr′ə-grăf′ĭk), or′o·graph′i·cal (-ĭ-kəl) adj.
or′o·graph′i·cal·ly adv.


[ˌɒrəʊˈgræfɪk] adjorografico/a
References in classic literature ?
The aeronauts took careful and complete note of the orographic conformation of the country.
These differences are due, in our opinion, to the anthropocentricity of the material such as, for example, the orographic lexicon set which we are analysing here.
According to the mentioned author, the northeast altitude swamps are more humid when compared to the semi-arid region that surrounds the area because of the orographic effect that provides higher rainfall incidence and lower temperatures.
These aspects are very suggestive of the role played by this orographic feature as a landscape reference within the local "megalithic world", whose specific influence in the lifeways of the surrounding Neolithic communities have been approached only tentatively.
Wood, "Correction of global precipitation products for orographic effects," Journal of Climate, vol.
We think that the short flight range of Trigona, in addition to forest fragments surrounded by a matrix of crops and villages and the presence of orographic discontinuities, contribute to explain the genotypic differences between sites; this has to be proven yet.
Going westbound from Oklahoma City, it could be a CAVU departure, followed by increasing turbulence as the day heated up (pushing me up above 10,000 feet), followed by orographic convective activity with mountain obscuration in the Rockies, and coastal fog on the California coast.
Because of the location of the basin, its mountainous nature and its geomorphology (Figure 1), it exhibits high temporal variability with respect to hydro-meteorological characteristics, where the orographic effect on the eastern slope of the Andes produces an increase in rainfall (Garreaud, 2009; Vicuna et al.
A conservative estimate of the annual precipitation is between 2000 and 3000 mm, compared with about 1000 mm at the two permanent stations (Table 1), indicating a strong local orographic enhancement of precipitation in the central Mealy Mountains.
None of them are as accurate for climate analysis as Garcia's climatic map (1973), which is an adaptation of Koppen's system taking into account particular orographic conditions of the country, or the later studies of Vidal (2005) relating to the climatic regions of Mexico.
In the mountains the precipitations are primarily of an orographic nature, as the moist winds are forced up the mountainsides, cooling adiabatically as they rise until they reach condensation temperature.