Could meltwater pulses have been sneaked unnoticed into the deep ocean during the last glacial?

Bibliographic data

DM Roche, H Renssen, SL Weber, H Goosse. Could meltwater pulses have been sneaked unnoticed into the deep ocean during the last glacial?
Status: published, Journal: Geophys. Res. Lett., Volume: 34, Year: 2007, doi: 10.1029/2007GL032064