Here we provide sea surface temperature (SST) data retrieved from observations of the satellite microwave radiometer Advanced Microwave Scanning Radiometer an Bord EOS (AMSR-E). This data is part of a "Multi-Parameter-Product", which is routinely produced at Remote Sensing Systems (http://www.remss.com) using AMSR-E brightness temperatures. The advantage of using microwave data instead of infrared data is, that the weather influence (emission and attenuation by water vapour and clouds) can be neglected, particularly for the low-frequency AMSR-E channels (6.9 GHz and 10.7 GHz). Note that due to the finite penetration depth of microwave radiation into the water column the observes SST represents the temperature of the uppermost millimeter
The AMSR-E sensor offers a complete daily data coverage at high latitudes while a mid- and low latitudes quite a number of data gaps occur. Therefore we offer here 3-day composites. This data is essentially free of data gaps. This data set is the final version (version 07) of this product.
Note that due to the large field-of-view which is associated with the used frequencies, a proper SST retrieval is not possible along coasts (even of small islands) and along the ice edge. Therefore no data is available for an approximately 75 km wide region adjacent to coasts and the ice edge.
ATTENTION!!! Recent results published by Gentemann, C. L.  suggest a bias in the SST due to an incorrect application of a correction factor for low water vapour contents. This required bias correction is described in Gentemann, C. L. .