surface stressThe vertical flux of momentum near the surface as the the ambient flow interacts with the land/water surface.
Surface Weather ChartAn analyzed synoptic chart of surface weather observations. A surface chart shows the distribution of sea-level pressure (therefore, the position of…
Surface windSurface wind Wind blowing near the Earth's surface. It is measured, by convention, at a height of 10 m above ground in an area where the distance between…
Sverdrupa unit of measure of volume transport equal to 106 m3/s, named in honor of the oceanographer Harald Sverdrup.
Synoptic analysisSynoptic analysis The study of the synoptic observation data plotted on synoptic charts aimed at analysis of the atmospheric disturbances (for example…
Synoptic chartSynoptic chart A weather chart reflecting the state of the atmosphere over a large area at a given moment.
Synoptic CodeRules and procedures established by the World Meteorological Organization(WMO) for encoding weather observations.
Synoptic hourSynoptic hour Hour (UTC) determined by international agreement at which meteorological observations are made simultaneously throughout the world.
Synoptic meteorologySynoptic meteorology The study and analysis of synoptic weather information (synoptic charts, synoptic weather observations).
Synoptic ScaleThe spatial scale of the migratory high and low pressure systems of the lower troposphere, with wavelengths of 1000 to 2500 km.
Synoptic weather observationSynoptic weather observation A surface weather observation, made at periodic times (usually at 3-hourly and 6-hourly intervals specified by the World…
Synthetic fertilizerCommercially prepared mixtures of plant nutrients such as nitrates, phosphates, and potassium applied to the soil to restore fertility and increase crop…
Synthetic natural gas (SNG)A manufactured product chemically similar in most respects to natural gas, resulting from the conversion or reforming of petroleum hydrocarbons.