Sea surface temperature monitor and predict the El Niño phenomenon. Weather satellites have been available to determine sea surface temperature information since 1967, with the first global composites created during 1970. Since 1982, satellites have been increasingly utilized to measure SST and have allowed its spatial and temporal variation to be viewed more fully. Satellite measurements of SST are in reasonable agreement with in situ temperature measurements. The satellite measurement is made by sensing the ocean radiation in two or more wavelengths within the infrared part of the electromagnetic spectrum or other parts of the spectrum which can then be empirically related to
March to the Sea (novel) in torturing him to death, despite his attempts to barter for his life with information on his previous sabotage attempts on the cities in the region. After the events in Marshad (at the end of the previous book) Roger and his marines manage to cross the Hadur region with little incident and begin ascending the mountains dividing the continent seeking a way through them. They awaken one morning to discover that the temperature has dropped to a pleasant 23 degrees and that the air is no longer humid. While the humans revel in the pleasant weather (for them) and brake