Hong Kong Observatory enhanced the webpage on El Ni隳 and La Ni馻 today (24 May 2010). The URL is:

         http://www.hko.gov.hk/lrf/enso/enso-front.htm

This webpage includes the latest information on El Ni隳 and La Ni馻, basic knowledge of the phenomena, their impacts on the climate of Hong Kong, and relevant references.