source region

source region

[′sȯrs ‚rē·jən]
(meteorology)
An extensive area of the earth's surface characterized by essentially uniform surface conditions and so situated with respect to the general atmospheric circulation that an air mass may remain over it long enough to acquire its characteristic properties.
References in periodicals archive ?
The EIO is a source region for an equivalent-barotropic Rossby wave train which influences MSLP to the south of Australia (van Rensch and Cai 2014), thus affecting atmospheric circulation in the region.
The three-dimensional (3D) network is segmented into three zones: top destination region, mid relay region and the bottom source region.
Asia Pacific states will continue to account for the bulk of international arrivals, though we do expect to see healthy growth in arrivals from the Middle East - currently a relatively small source region for Malaysia but one with enormous potential.
However, Asia is the fastest-growing source region for Austrian tourism at the moment.
Despite having the lowest regional prevalence of modern slavery in the world, Europe remains a destination, and to a lesser extent, a source region for the exploitation of men, women and children in forced labour and commercial sexual exploitation, the Foundation said.
Despite challenging global market conditions, and a strong US dollar, visitors from western Europe continued to be second largest source region with a 23% visitor share overall in the opening quarter of 2016.
Visitors from Western Europe continued to be the second largest source region with a 23 per cent visitor share overall in the first quarter, despite challenging global market conditions and a strong US dollar, Dubai Tourism said.
This approach is usually termed a geographical system of tourism (Cooper and Hall 2008) and consists of four basic elements that are listed as follows: i) a generating or source region which is the permanent residence of the tourist and the place where the journey begins and ends; ii) a transit route which is the path through the region across which the tourist must travel to reach his or her destination; iii) a destination region, the region which the tourist chooses to visit and which is a core element of tourism; iv) the environment that surrounds the other three regions.
He identifies the volcanic region of Tharsis as the source region of the lava flows and from there initial lava tubes stretched to the edge of the Noctis Labyrinthus.
The compositions of these dusts are determined by its source region and closely reflect the composition of soil cover.
The lava built a channel that we see today as the valley's walls, and its source region is a 2-km-high broad volcanic mountain with a deep pit on its western flank.
In the last essay on the nineteenth century, Christ of Hamann takes us outside of Europe again: he traces the recurrence of the ancient trope of the Mondgebirge, the fabled source region of the Nile, within the colonialist framework of Deutsch-Ostafrika and the obsession with Mount Kilimanjaro.

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