The purple coloured tent was found pitched on the river bank. Products inside it led officers to speak to a local supermarket, and officers believe the man may have been living in the tent.
Det Insp Stef Wiseman, of Kirklees CID, said: “We are keen to speak to the man pictured to verify that it was him living in the tent, and that he is OK.
“If anyone can assist in identifying the man, has seen or heard from him recently or knows where he is now, I would ask them contact Kirklees CID via 101. Enquiries are continuing.”
Officers are concerned for the man’s welfare, particularly as the weather had been cold and wet for much of the time.
The tent was discovered on Wednesday in an area close to where the body of a missing man was found in the river.
Police have confirmed the body is of Daniel France. from Dewsbury, and enquiries into the circumstances of his death are ongoing.
Robert Sutcliffe report's on discovery of Daniel France's body
Police were called to Sands Lane, Dewsbury, at 11.37am on Wednesday after reports that a body had been seen in the water.
Mr France, 38, had last been seen at his home in Ravensthorpe on Saturday, March 12.
His death is the fourth in rivers and canals in the area in little over three weeks but there are no links between any of the deaths.
On Good Friday, a man’s body was recovered from the River Calder at Mirfield.
Detectives have confirmed it was missing Harrogate man George Bass.
A body was also found close to the river at Ravensthorpe on March 14.
And a teenager died in a canal in Huddersfield two weeks ago.