Unlike preliminary efforts17 that utilized equations developed for sandy shorelines, an empirical methodology19 that utilizes breaking wave parameters at the foot of the slope was used to provide more accurate measures of wave-driven run-up for reef-lined coasts.
Maximum wave heights as described in Wave Heights: Maximum Wave Height, are a measure of wave magnitude that is independent of a datum and so does not provide an indicator of water level.
The augmentation index (AIx) is a measure of the pressure increment from the shoulder of the systolic waveform, normalized to pulse pressure, and is considered a proxy measure of wave reflection (21, 23, 26).
While wave reflection is not completely abolished after reservoir subtraction, our observations indicate that the AIx is not predominantly a measure of wave reflection but rather is largely due to the compliant properties of the aorta and other elastic arteries (15, 20).
Two measures of pulse wave velocity will be made, with a 1 minute interval.
Electrocardiography was performed, and measures of pulse wave velocity were obtained.
Measures of pulse wave velocity (PWV) in the central (carotid-femoral (cfPWV)), peripheral (femoral-ankle (faPWV)), and mixed (brachial-ankle (baPWV)) vascular beds were collected at baseline and 6 months.
Pulse wave velocity (PWV) was measured as an index of aortic stiffness and augmentation index (AIx) as a measure of arterial wave reflections.
But the New York data, compiled by state court officials after a request from The New York Times, provide an early measure of the wave of recession cases nationally.
