The phrase "across a vast array of" is correct and usable in written English.
It can be used to describe a wide range of subjects, topics, or items in various contexts, such as research, analysis, or discussions.
Example: "The study examined the effects of climate change across a vast array of ecosystems."
Alternatives: "through a wide range of" or "over a broad spectrum of".
Indeed, across a vast array of policy issues from trade to Taiwan, the United States is moving away from the closer relationship to Beijing — one that for decades, Washington had pursued on a bipartisan basis.
Just this week, moreover, the government raised the value added tax across a vast array of goods and services from 17.5 percent to a record 20 percent, provoking a stampede of last-minute consumption before the increase took effect.
"It takes money and expertise across a vast array of fields.
"With the rapid expansion of growth across a vast array of Internet-connected devices, more and more of the elements of our lives have moved online," said Paul Otellini, Intel president and CEO.
They're better at establishing connections across a vast array of differences.
Gene expression profiles can generate parallel quantitative and repeated measurements of tens of thousands of transcripts simultaneously in one sample, allowing rational comparison of the transcriptome across a vast array of experimental conditions.
Data are available from numerous research institutions across the United States covering a vast array of subjects and base layer information.
Nobel prize-winner Grass's inventive novel ranges across centuries and features a vast array of characters, including a mystical talking fish and a great many cooks.
She presents a vast array of sport across the major channels.
In a vast array of proposals across a 250-page report, the commission also calls for more performance-related pay for teachers and a requirement that free schools have an explicit objective of narrowing education attainment gaps, and urges ministers to drop "the strivers versus shirkers rhetoric", which it says undermines support for welfare spending.
Indeed aggregates job openings from a vast array of sources across the web including company websites, online job boards, newspapers, industry organizations, and staffing firms.
