The XBT/CTD pairs dataset (Version 2) contains additional datasets and updated datasets from the Version 1 data. Version 1 data was used to update the calculation of historical XBT fall rate and temperature corrections presented in Cowley, R., Wijffels, S., Cheng, L., Boyer, T., and Kizu, S. (2013). Biases in Expendable Bathythermograph Data: A New View Based on Historical Side-by-Side Comparisons. Journal of Atmospheric and Oceanic Technology, 30, 1195–1225, doi:10.1175/JTECH-D-12-00127.1. http://journals.ametsoc.org/doi/abs/10.1175/JTECH-D-12-00127.1 Version 2 contains 1,188 pairs from seven datasets that add to Version 1 which contains 4,115 pairs from 114 datasets. There are also 10 updated datasets included in Version 2. The updates apply to the CTD depth data in the Quality Controlled version of the 10 datasets. The 10 updated Version 2 datasets should be used in preference to the copies in Version 1. Note that future versions of the XBT/CTD pairs database may supersede this version. Please check more recent versions for updates to individual datasets. Each dataset contains the scientifically quality controlled version and (where available) the originator's data. The XBT/CTD pairs are identified in the document 'XBT_CTDpairs_metadata_V2.csv'. Although the XBT data in the additional datasets was collected after 2008, much of the probes in the ss2012t01 dataset were manufactured during the mid-1980s. Lineage: Data is sourced from CSIRO Oceans and Atmosphere Flagship, Australian Antarctic Division and Italian National Agency for New Technologies, Energy and Sustainable Economic Development. Original and raw data files are included where available. Quality controlled datasets follow the procedure of Bailey, R., Gronell, A., Phillips, H., Tanner, E., and Meyers, G. (1994). Quality control cookbook for XBT data, Version 1.1. CSIRO Marine Laboratories Reports, 221. Quality controlled data is in the 'MQNC' format used at CSIRO Marine and Atmospheric Research. The MQNC format is described in the document 'XBT_CTDpairs_descriptionV2.pdf'. Note that future versions of the XBT/CTD pairs database may supersede this version. Please check more recent versions for updates to individual datasets.

The XBT/CTD pairs dataset (Version 1) is the dataset used to calculate the historical XBT fall rate and temperature corrections presented in Cowley, R., Wijffels, S., Cheng, L., Boyer, T., and Kizu, S. (2013). Biases in Expendable Bathythermograph Data: A New View Based on Historical Side-by-Side Comparisons. Journal of Atmospheric and Oceanic Technology, 30, 1195–1225, doi:10.1175/JTECH-D-12-00127.1.
http://journals.ametsoc.org/doi/abs/10.1175/JTECH-D-12-00127.1

4,115 pairs from 114 datasets were used to derive the fall rate and temperature corrections. Each dataset contains the scientifically quality controlled version and (where available) the originator's data. The XBT/CTD pairs are identified in the document 'XBT_CTDpairs_metadata_V1.csv'. Note that future versions of the XBT/CTD pairs database may supersede this version. Please check more recent versions for updates to individual datasets. Lineage: Data is sourced from the World Ocean Database, NOAA, CSIRO Marine and Atmospheric Research, Bundesamt für Seeschifffahrt und Hydrographie (BSH), Hamburg, Germany, Australian Antarctic Division. Original and raw data files are included where available. Quality controlled datasets follow the procedure of Bailey, R., Gronell, A., Phillips, H., Tanner, E., and Meyers, G. (1994). Quality control cookbook for XBT data, Version 1.1. CSIRO Marine Laboratories Reports, 221. Quality controlled data is in the 'MQNC' format used at CSIRO Marine and Atmospheric Research. The MQNC format is described in the document 'XBT_CTDpairs_descriptionV1.pdf'. Note that future versions of the XBT/CTD pairs database may supersede this version. Please check more recent versions for updates to individual datasets.