"The purpose of this report is to describe, in detail, the steps taken to confirm that the proposed air gap sensor is suitable for the required application. It includes a brief review of the requirements, a rationale for the selection of the sensor, a description of the incrementally-challenging tests used in evaluating the performance of the sensor, a discussion of the margin of error (error budget) of those tests and the sensor itself, a description of the test data and metadata management, and finally, a description of the potential tools available for realtime quality control (QC) of air gap data"--Page 2.

National Ocean Service (NOS)