摘要：Remote sensing techniques were used to detect the heat islands over the Romanian region, based on multi-temporal Meteosat Second Generation, Land Surface Analysis Satellite Applications Facility/ Land Surface Temperature products (MSG LSASAF/LST). A method was proposed for the rapid and accurate mapping of heat island areas based on the combinational use of normalized land surface temperatures. In order to do it, the IDL routines developed locally have been used. It was studied. 2976 LSA-SAF/LST images acquired during the period of August 2008 and it were used to calculate LST parameters. The LST values from 15 August 2008 were used to detect expansion and heat islands changes over the Romanian region. The LST product has a temporal resolution of 15 minutes.The LST values can be determined, theoretically, 96 times per day. Although heat islands and its change were affected by urban expansion, it is a complicated phenomenon affected by many factors. Other factors affecting heat islands will be discussed in further studies. This research work has been done under contract DESATEMP, number 31 - 007/18.09.2007, from ,,Partnership into Research Domains" Program, category ,,Complex Projects, financed by the Ministry of Education, Research
