Thermal Layers
Hi,
They were certainly known about since British escorts used a bathythermograph to find the layer. It had a pressure and temperature sensitive unit into which a smoked glass slide was fitted, on which a stylus created a graph, which could be read against a scale. It was trailed on a wire when the information was needed.
Submarines had a setup similar to a barograph and knew where that layer was,if it existed,when in hazardous situations.
RR
|