 The HLAPC takes a 4.7 m core rather than a standard 9.5 m APC core.It was designed to potentially extend the depth of piston core penetration, allowing collection of cores suitable for high-resolution paleoceanography and paleoclimatology from greater depths.Since initial deployment in 2013, the HLAPC has increased the piston coring depth record to 490 m below seafloor.