atrack 93mar 29mar93-12may93 Alongtrack ship observations including location, meteorology, water temperature, salinity and fluorescence. Julian day Hour (GMT) Minute (GMT) Latitude (deg) (south latitudes are negative) Longitude (deg) (where west longitudes are negative) Ship's heading (degrees true) Depth (m) Barometric pressure (millibars) Air temperature (deg C) Relative humidity (%) RH temperature (deg C) N-S wind speed (m/sec) (positive indicates wind from the north) E-W wind speed (m/sec) (positive indicates wind from the east) Surface water temperature (deg C) Surface fluorescence (unknown units) Surface salinity (ppt) Sampling done throughout the cruise with sampling at 6 second interval. The data was acquired automatically using the ship's real time data acquision system (RTDAS). All of the observations from the rtdas system for each day have been combined into a single file, which has the name `rtdas.' followed by the day number with a leading `0' if appropriate. The observations are interpolated to every minute throughout the day and missing values are indicated by the value -999. All observations are real. Measurements taken continuously to cover the 900km x 200 km LTER grid West of the Antarctic Peninsula. southern ocean, antarctic ascii unix ODU online lter ~lter/lterdata/93mar/atrack/ Eileen E. Hofmann J. Klinck B.Lipphardt David W. Menzies automated B.Lipphardt J. Klinck 16Jan97 Once all of the observations were assembled, then some interpolation and data quality tests have been performed. For the files as they now exist, any gap of 10 minutes or smaller is interpolated linearly. The only data quality check that has been done is to test for bad locations which are indicated if the ship speed had to be greater than 20 kt to have the indicated location change. If there is a single bad value then it is linearly interpolated. Multiple successive bad values are not interpolated, at present. Core measurments available after two years. Citation acknowledgement: "Data from the Palmer LTER data archive were supported by Office of Polar Programs, NSF (OPP-9011927)."
Datafile Form V1.3 for describing a data file.