Which one of the following is a method of extending the length of record for a frequency curve at a station?
When long records are not available, records at two or more stations are combined to get one long record for the purposes of recurrence interval calculation. This method is known as station year method. In this method all the records which are available from the various stations situated in a meteorologically homogeneous area are combined together, so as to represent the record of an imaginary representative station called the station year.