This site contain the TSG data received from ships of the Ship Of Opportunity Program and the NOAA fleet. The files in this site are updated in real-time when new data arrives, during the quality control (QC) processing.

This ftp site is organized as follows:

1. Directory ./Doc
		File ./Doc/AOML_QC_RT_TSG_v5.pdf : Detailed AOML QC procedures and flags.
		File ./Doc/AOML_TSG_Designators.pdf : Designators used at AOML for TSG data files.
		file ./Doc/TSG_call_sign_list.dat : List of call signs, ship names, and IMO numbers of all ships that have contributed data to this dataset.

2. Directory ./RT_QC_RED
		This directory contains the QC'ed TSG data, with resolution of one record every 3 minutes, organized as one file per ship per year. The call sign of the ship where these observations were made is specified in the file name, as well as the year (file names: CallSign_yyyy.gz). Files in this directory are compressed ASCII files with format: YMD, HMS, LAT, LON, INT, SAL, COND, EXT, SST, QC flags, ... (see documentation in ./Doc for details). This dataset is equivalent to the next one, in directory ./RT_QC_RED_dy.

3. Directory ./RT_QC_RED_dy
		This directory contains the QC'ed TSG data, with resolution of one record every 3 minutes, organized as one file per day containing the data received from all ships for that day. The corresponding date is specified in the file name (file names: yyyymmdd.gz). Files in this directory are compressed ASCII files with format: WMOID, HMS, LAT, LON, INT, SAL, COND, EXT, SST, QC flags, ... (see documentation in ./Doc for details). This dataset is equivalent to the previous one, in directory ./RT_QC_RED.

4. Directory ./RT_QC_RAW_nc
		This directory contains the QC'ed TSG data, with full resolution, organized as 4 files per ship per month. The call sign of the ship where these observations were made, the year and the month are specified in the file name, as well as an indicator nn for the day interval: 01 for days 1-7, 02 for days 8-14, 03 for days 15-21, and 04 for days 22-end of the month (file names: CallSign_yyyy_mm_nn.nc.gz). Files in this directory are compressed netCDF files containing all the metadata, QC flags and additional information about this project.

The QC flags are formed by a character identifying the QC test (a, b, c, ..., l) and a digit (0, 1 or 2) (see ./AOML_QC_RT_TSG_v5.pdf for details).