NASA Oceanography - Sea Surface Temperature
By developing global, detailed, and decades-long views of Sea Surface Temperature (SST), data obtained from NASA and NOAA satellites provide the basis for the prediction of climate change, ocean currents, and the potent El Niño -La Niña cycles..
El Niño is perhaps the best known example of the impact that changing sea surface temperature has on our climate.
Every day the Moderate-resolution Imaging Spectroradiometer (MODIS) measures sea surface temperature over the entire globe with high accuracy.
Red and yellow indicates warmer temperatures, green is an intermediate value, while blues and then purples are progressively colder values.
The distribution of temperature at the sea surface tends to be zonal, that is, it is independent of longitude.
The anomalies of sea-surface temperature, the deviation from a long term average, are also small, less than 1.5°C/34.7°F except in the equatorial Pacific where the deviations can be 3°C/37.4°F.
Most weather and climate events are the result of sea and atmospheric coupling.
SST influences the rate of energy transfer into the atmosphere, as evaporation increases rapidly with temperature.
Climate Change 2001: The Scientific Basis
2.2.2.2 Sea surface temperature and ocean air temperature The analyses of SST described here all estimate the sub-surface bulk temperature, (i.e.
the temperature in the first few metres of the ocean) not the skin temperature.
(1996) data, which incorporate polar orbiting satellite temperatures, utilise skin temperatures that have been adjusted to estimate bulk SST values through a calibration procedure..
The corrections are independent of the land-surface air temperature data.
Confirmation that these spatially and temporally complex adjustments are quite realistic globally is emerging from simulations of the Jones (1994) land-surface air temperature anomalies using the Hadley Centre atmospheric climate model HadAM3 forced with observed SST and sea-ice extents since 1871, updated from Rayner et al.
Figure 2.4 (Folland et al., 2001) shows simulations of global land-surface air temperature anomalies in model runs forced with SST, with and without bias adjustments to the SST data before 1942.
All runs with uncorrected SST (only the average is shown) give too cold a simulation of land-surface air temperature for much of the period before 1941 relative to the 1946 to 1965 base period, with a dramatic increase in 1942.
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Photo by www.bigelow.org
Current Sea Temp Image North
Image courtesy of the NOAA Office of Satellite Data Processing and Distribution For info about time (UTC, 24 hour, etc.) click here For info about temperature (Fahrenheit, Celsius, Kelvin) click here Maine Harbors obtains forecasts and other information from the National Weather Service - (IWIN) and Environment Canada .
Sea temperature and salinity trends
Sea temperature and salinity trends The coastal temperature network and ferry route programme; Long-term temperature and salinity observations This report updates that of Jones and Jeffs (1991) and Norris (2001).
The latter author presented monthly mean sea surface temperature data in tabular format for stations around the English and Welsh coast, up to 2001.
This publication, available both as a hard copy and annually updated on this website (www.cefas.co.uk/data/seatempandsal), summarises the temperature condition of coastal surface waters around the coast of England and Wales and the salinity and temperature condition across the Southern Bight of the North Sea.