Station Amsterdam (files amsterdam.*) ================= This station was occupied by BPR's from POL during 1984-88 and from the University of Grenoble, France during 1991-94. POL instrumentation 1984-85 was strain gauge pressure sensor with temperature also recorded. For 1986-1988, a Paroscientific Digiquartz pressure transducer was used with temperature also recorded. As stated above, the datum of the pressure measurements is not maintained from one deployment to the next. See Vassie et al., Journal of Geophysical Research, 99(C1), 937-949, 1994. For each POL record a long term instrumental drift has been removed. Station positions (lat, lon) for the southern Indian Ocean should be regarded as being uncertain to 1 km (or 1 minute) in these pre-GPS days - if this is an important factor then notes of the scientists in charge can be consulted as to SATNAV etc. information. files amsterdam.deep.8687 and amsterdam.deep.8788: These deployments were at a greater depth than the previous ones. See Vassie et al., Journal of Geophysical Research, 99(C1), 937-949. For the records for 1991 onwards, obtained from colleagues at the University of Grenoble, no attempt has been made to remove possible long-term drifts in these pressure measurements.