The phrase "an ongoing survey" is correct and usable in written English.
It can be used to describe a survey that is currently in progress or being conducted over a period of time.
Example: "The results of an ongoing survey will be published next month, providing insights into consumer behavior."
Alternatives: "a continuous survey" or "a current survey".
Connecting cybersecurity experts across government and industry in an ongoing survey.
The Guardian has an ongoing survey of "who makes the news" looking at the gender breakdown of UK newsrooms.
Sheppard has embarked on an ongoing survey to find tiny planetoids on the solar system's outer rim.
This poster presents an update and initial findings from an ongoing survey of 1000 visually impaired people in Great Britain.
(The only haul-seining still conducted is when the D.E.C. hires Jens Lester and a crew to catch bass as part of an ongoing survey of the fishery).
"As part of an ongoing survey we asked hundreds of thousands of people how they feel about the content in their News Feeds.
This includes an ongoing, survey-based cohort study that seeks to understand why some people with type 2 diabetes develop complications while others do not.
The California Women's Health Survey is an ongoing, monthly telephone survey that collects information on health-related behavior and attitudes from randomly selected adult women (8, 9).
A large ongoing survey of American communities seems to show, uncomfortably, that levels of trust and co-operation are highest in the most homogenous neighbourhoods.
These scores were derived from an unprecedented volume of ongoing survey work.
The study is an ongoing prospective survey of a cohort of graduates of the three medical schools in German-speaking Switzerland (Basel, Berne, and Zurich) (SwissMedCareer Study), beginning in 2001 (T1) [ 13].
