Concept
Sound pressure level in air
| URI | http://vocab.nerc.ac.uk/standard_name/sound_pressure_level_in_air/ | ||
|---|---|---|---|
| Within Vocab | Climate and Forecast Standard Names | ||
| Definition | Sound pressure is the difference from the local ambient pressure caused by a sound wave at a particular location and time. Sound pressure level in air is expressed on a logarithmic scale with reference to a sound pressure of 2e-5 Pa. Lp = 20 log10(p/p0) where Lp is the sound pressure level, p is the rms sound pressure and p0 is the reference sound pressure. | ||
| Date | None | ||
| Note | accepted | ||
| modified | 2006-09-26 18:12:43.0 | ||
| Exact Match | http://mmisw.org/ont/cf/parameter/sound_pressure_level_in_air | ||
| http://vocab.nerc.ac.uk/standard_name/sound_pressure_level_in_air/ | |||
P07:CFSN0309 |
sound_pressure_level_in_air | ||
| Related | P06:UDBL |
Decibels | |
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