The phrase "a broad area in" is correct and usable in written English.
It can be used when discussing a wide-ranging topic or field of study, indicating a general scope or domain.
Example: "The research focuses on a broad area in environmental science, covering various aspects of climate change and sustainability."
Alternatives: "a wide field in" or "a large domain in".
A broad area in astronomy focuses on simulating extragalactic objects based on Very Long Baseline Interferometry (VLBI) radio-maps.
Taliban insurgents have such a strong grip on such a broad area — in particular the southern provinces of Kandahar, Helmand, Oruzgan and Zabul — that even with the anticipated arrival of an additional 30,000 American troops this year, the elections will not take place in some areas, several Western and Afghan officials in Kabul said.
A patchwork of rules and divergent tax rates allows multinational corporations, especially banks, to set up offices outside their main markets and book earnings accrued over a broad area in the country with the lowest rate, shifting revenue away from countries that impose higher tax burdens.
But after an improbable series of military victories over the past three weeks — with fewer than 100 rebel fighters killed, their military leaders say — residents of a broad area in this mountain region are celebrating virtual secession from Colonel Qaddafi's Libya.
Later arrivals (S4) were located in a broad area in the central to northern part of the Japanese islands.
However, it is certain that dilatational volumetric strain changes comparable to an order of magnitude of 10 μm acted on a broad area in the Owakudani geothermal region because of the opening of the crack.
That is far enough to be outside the evacuation zones, and also a broader area in which authorities have told residents to stay indoors to avoid contamination.
Of course, the Corps can, should, and will redo the analysis to cover a broader area, in order to seek out evidence of a heightened risk of any sort, including risks that are social or cultural.
Prof Alan Harding, Professor of Public Policy at the University of Liverpool, said: "These two cities stand at the core of a broader area in northern England, extending at least as far as Liverpool and Sheffield, that has the largest concentration of people and economic activity outside the South East.
Therefore, in addition to investigating consumption and political attitudes, we should expand the study of the middle class to a broader area in order to deeply understand the life chances that they encounter in the transforming society, as well as their perceptions of opportunity and structure.
"Over time, if the Chinese government were to open up access to a broader area in the future, companies such as Facebook would be better positioned".
