Sentence examples for level metre from inspiring English sources
The maximum root mean square (RMS) of sound pressure level (SPL) was 81.1 84.0 dB measured at 0.2 m (sound level metre: Brühl & Kjær 2231).
Playback stimuli were broadcasted using a Marantz PMD-661 solid-state recorder connected to a loudspeaker (David Active, Visonik, Berlin), with maximum amplitude set within the range of natural calling behaviour (60 85 dB at 10 m from source, measured using a Voltcraft 322 sound level metre).
The software was calibrated as follows: A sine tone with constant amplitude was recorded with the same settings as used for the bird song recordings, and the sound level of the recorded tone was set to the value directly measured with a precision sound level metre (CEL 214, cel instruments, UK) at the position of the microphone.
There is usually a wide waste-weir to serve as emergency spillway, usually stone pitched with a crest level one metre below the top of the bund to give one metre freeboard for wave action.
There is only modest variation in altitude within the study area, from 30 to 180 metres above sea level (IQR 49-99 metres).
Built in 1692, this sacred Buddhist site sits at 3,120 metres above sea level and 900 metres above the Paro valley.
The idea that ice sheets are becoming unstable and could raise sea levels several metres is not as controversial as you might think.
The SAP ice sheet is bordered by the ice sheets of West Antarctica and the Northern Antarctic Peninsula, both of which have begun catastrophic collapses that could raise sea levels by metres over the coming centuries.
Built 130 metres (425 feet) above sea level and 120 metres (390 feet) into a mountainside, this unstaffed vault houses thousands of seeds to preserve the genetic diversity of food crops in case of a global crisis.
The avalanche shunted the 43-room hotel, which is 1,200 metres (4,000 ft) above sea level, some 10 metres (30 ft) down the hill, according to media reports.
But half of all Italy's winter sport villages are below the 1,300 metre level.
