Building envelope thermography involves using an infrared camera to view temperature anomalies on the interior and exterior surfaces of the structure.

In this type of atmosphere, high and low pressure areas are centers of warm and cold temperature anomalies.

It then encountered water temperature anomalies, and fluctuated in strength.

Temperature anomalies are useful for deriving average surface temperatures because they tend to be highly correlated over large distances (of the order of 1000 km).

Temperature anomalies are displayed over globe in the provided in figure scale on the right.