Taken as a continuous record by TOGA sea level center but many ad-hoc datum corrections made to the original data. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 16-Oct-1991 Original data adjusted by TOGA =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Mar-1993 Data received from TOGA office =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-May-1994 Earthquake 3/10/1974 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 18-Jan-2012 Using data from the latest UHSLC JASL cd the 'METRIC' dataset has been updated. Data values for 2002-2010 have been added to the dataset. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Oct-2013 Complete UHSLC dataset 1970-2012 loaded as additional data values had been added =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-Oct-2015 Using information from the UHSLC levelling sheets Callao 2 has been made RLR from October 2011 onwards. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Oct-2015 Complete updated JASL data through to 2014 reloaded onto the database.