Air-sea fluxes of CO2 and CH4 from the penlee point atmospheric observatory on the south-west coast of the UK

Abstract

We present air-sea fluxes of carbon dioxide (CO2/, methane (CH4/, momentum, and sensible heat measured by the eddy covariance method from the recently established Penlee Point Atmospheric Observatory (PPAO) on the south-west coast of the United Kingdom. Measurements from the south-westerly direction (open water sector) were made at three different sampling heights (approximately 15, 18, and 27m above mean sea level, a.m.s.l.), each from a different period during 2014-2015. At sampling heights ≥18ma.m.s.l., measured fluxes of momentum and sensible heat demonstrate reasonable (