The phrase "a summit that is" is correct and usable in written English.
You can use it when describing a specific type of summit or event, often to elaborate on its characteristics or purpose.
Example: "The conference will be a summit that is focused on climate change solutions and international cooperation."
Alternatives: "a summit which is" or "a summit characterized by".
NATO leaders meet this Sunday and Monday in Chicago for a summit that is likely to be dominated by Afghanistan.
As Chinese president Hu Jintao prepares to visit Washington for a summit that is being hailed as the most crucial in years, the focus is not on how much authority the Chinese leader brings, but on how little.
The BBC and ITV will meet on Monday to divide up the 64 matches of the World Cup in a summit that is as important for the two broadcasters as the draw itself.
"This is a summit that is going to celebrate an historic moment for NATO, which is the expansion of NATO into territories that I think nobody ever thought NATO would expand into," said Condoleezza Rice, the president's national security adviser.
Brendan Cox, a spokesman for the IF global hunger campaign backed by 200 pressure groups, said: "The G8 would have a very difficult time justifying a summit that is supposed to focus on transparency coming up with a system of private registers".
Three of Belgium's biggest unions are expected to bring Brussels to a standstill on Monday and complicate the arrival of EU leaders for a summit that is their first attempt this year to resolve the single currency and sovereign debt crisis.
"I dare you to think of a summit that was so substantive".
For a summit that was supposed to focus on energy security, where is the commitment to establish a hemispheric free-trade area in conventional and alternative energy resources?
At a summit that was starting just as The Economist went to press, heads of government of the 25 European Union countries were planning, after much haggling, to agree upon a new constitution for their Union.
The prime minister will be given a brief opportunity to address her EU counterparts at a summit that was until recently billed as a make-or-break moment on the road to Brexit.
This was informed by a summit that was held in March 2013 which was attended by representatives of the local business community, voluntary groups and other individuals with an interest in the future of Glenrothes Town Centre.
