Ship netCDF File Variables yyyymmdd-hhmmss-shipattitude-seapath_01.att, 10Hz roll heave heading pitch yyyymmdd-hhmmss-shipattitude_aux2-seapath_01.att, 10Hz vertical velocity pitch rate roll rate yaw rate yyyymmdd-hhmmss-shipattitude_aux-seapath_01.att, 10Hz Y acceleration - port-starboard axis X acceleration - bow-stern axis Z acceleration - vertical axis yyyymmdd-hhmmss-shipnav-shipnav_01.nav, 1Hz surface speed - speed relative to water surface drift speed - estimate of current speed (drift spd vector = grnd spd vector - surf spd vector) ground speed - earth reference speed surface course - course relative to water surface draught - distance from keel to sfc of water, m longitude drift course - estimate of current direction depth - ocean depth, m roll ground course - earth reference course altitude - height of ref pt above ellipsoid heave pitch latitude heading yyyymmdd-hhmmss-metstation-met_01.met, 5 sec port/starboard winds and T/RH yyyymmdd-hhmmss-weather-met_01.met, 5 sec rain, radiation, wind, pressure in2016_v02uwy.nc - 5 sec compilation from all sources lat seapath latitude lon seapath longitude, deg E sog seapath sog, m/s cog seapath cog, deg hed gyro heading, deg wspd_port true wspd, port, m/s @ 25 m wdir_port true wdir, port, deg rwspd_port rel wspd, port, m/s rwdir_port rel wdir, port, 0-360 deg wspd_stbd true wspd, stbd, m/s @ 25 m wdir_stbd true wdir, stbd, deg rwspd_stbd rel wspd, stbd, m/s rwdir_stbd rel wdir, stbd, 0-360 deg wspd_sonic true wspd, sonic, m/s @ 22.5 m wdir_sonic true wdir, sonic, deg rwspd_sonic rel wspd, sonic, m/s rwdir_sonic rel wdir, sonic, 0-360 deg ta_port air temp, port, C @ 31.4 m main mast ta_stbd air temp, stbd, C @ 31.4 m main mast rh_port rel humidity, port, % @ 31.4 m main mast rh_stbd rel humidity, stbd, % @ 31.4 m main mast Pmb atm preessure, mb @ 20.6 m on bridge rain accumulated rain, RM Young, mm @ 22m rain_rate rain rate, RM Young, mm/hr rain_optical accumulated rain, optical disdrometer, mm rain_rate_optical rain rate, optical disdrometer, mm/hr PSP_port solar rad flux, port, W/m2 @ 25.2 m PSP_stbd solar rad flux, stbd, W/m2 @ 25.2 m PIR_port IR rad flux, port, W/m2 @ 25.2 m PIR_stbd IR rad flux, stbd, W/m2 @ 25.2 m SST_IR ISAR infrared sea surface temp, C @ 19.5 m on bridge SST TSG water temp, C on port drop keel Sal TSG salinity, psu uship_long longitudinal speed through water, m/s uship_trans transverse speed through water, m/s SST_depth depth of SST measurement, m (varies depending on drop keel position