Stewart Ainsworth is a British archaeological investigator

Landscape archaeology

Landscape archaeology is the study of the ways in which people in the past constructed and used the environment around them. Landscape archaeology is inherently multidisciplinary in its approach to the study of culture, and is used by both pre-historical, classic, and historic archaeologists...

, who is regularly seen on Time Team

Time Team

Time Team is a British television series which has been aired on Channel 4 since 1994. Created by television producer Tim Taylor and presented by actor Tony Robinson, each episode features a team of specialists carrying out an archaeological dig over a period of three days, with Robinson explaining...

, the Channel 4

Channel 4

Channel 4 is a British public-service television broadcaster which began working on 2 November 1982. Although largely commercially self-funded, it is ultimately publicly owned; originally a subsidiary of the Independent Broadcasting Authority , the station is now owned and operated by the Channel...

 archaeological television series.

He trained as a surveyor before entering the archaeology section of the Ordnance Survey

Ordnance Survey

Ordnance Survey , an executive agency and non-ministerial government department of the Government of the United Kingdom, is the national mapping agency for Great Britain, producing maps of Great Britain , and one of the world's largest producers of maps.The name reflects its creation together with...

. He has worked on a number of archaeological sites in Britain and abroad. He joined the Royal Commission on the Historical Monuments of England

Royal Commission on the Historical Monuments of England

The Royal Commission on the Historical Monuments of England was the body formerly responsible for documenting the records of English historical monuments. It was merged with English Heritage on 1 April 1999....

 (now part of English Heritage

English Heritage

English Heritage . is an executive non-departmental public body of the British Government sponsored by the Department for Culture, Media and Sport...

) in 1985, and is now head of their Landscape Investigation Team based in York

York

York is a walled city, situated at the confluence of the Rivers Ouse and Foss in North Yorkshire, England. The city has a rich heritage and has provided the backdrop to major political events throughout much of its two millennia of existence...

, England.

He is affectionately known as Time Team's "lumps and bumps"

Earthworks (archaeology)

In archaeology, earthwork is a general term to describe artificial changes in land level. Earthworks are often known colloquially as 'lumps and bumps'. Earthworks can themselves be archaeological features or they can show features beneath the surface...

 man, working with the team alongside his day job, travelling the country surveying, recording and investigating archaeological sites.

As of 2010 Ainsworth has been part of the History and Archaeology department at the University of Chester

University of Chester

The University of Chester is a public research university located in Chester, United Kingdom. The University, based on a main campus in Chester and a smaller campus in Warrington, offers a range of foundation, undergraduate and postgraduate courses, as well as undertaking academic research.Chester...

.
Ainsworth is married with two children.http://www.timeteam.k1z.com/index.php?ind=articoli&op=entry_view&iden=1