Navy releases jet noise monitoring study

As you read this article, it’s worth noting that the Skagit Valley Herald did not print any input from the people who are suing the Navy. Only what the Navy said. I looked up the Citizens for Ebey’s Reserve web site and found the information that I posted below.

First a bit of the Skagit Valley Heralds story. Please read the whole story if you need get more info.

On the heels of a U.S. District Court critique of the Navy’s environmental review for increasing its EA-18G jet fleet and related flight operations at Naval Air Station Whidbey Island, the Navy has released a noise monitoring report that was requested by Congress…The Navy’s noise monitoring report that is dated Nov. 30 concludes that the modeling it used to predict the impact of aircraft noise, such as for the EIS for NAS Whidbey Island, is accurate. In fact, according to the report, monitoring data shows jet operations often create less of an impact than modeling suggested. Kimberly Cauvel reports. (Skagit Valley Herald)


Now for the feedback from the opposition:

The Navy describes noise exposure using the Day-Night Average Sound Level (DNL). The DNL metric expands daily noise events into a 24-hour average for an entire year. DNLs do not tell us what the loudest event is in a 24 hour period, nor how many noise events there may be in a 24 hour period. Our ears, unfortunately, do not average noise events or duration. So yes; averaging the noise level of a deafening explosion over 24 hours, and then again for an entire year, would seem to indicate that the explosion was really quiet… statistically.
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