Editing Decibel (section)

=== Radar ===
; [[dBZ (meteorology)|dB{{sub| Z}}]] : dB(Z) – decibel relative to Z&nbsp;= 1&nbsp;mm{{sup|6 }}⋅m{{sup|−3 }}:<ref>{{cite web |title=Terms starting with&nbsp;'''D''' |department=Glossary |publisher=U.S. [[National Weather Service]] |website=weather.gov |url=https://www.weather.gov/jetstream/glossary_d<!-- Former URL: http://www.srh.noaa.gov/jetstream/append/glossary_d.htm --> |access-date=2013-04-25 |archive-url=https://web.archive.org/web/20190808140856/https://www.weather.gov/jetstream/glossary_d |archive-date=2019-08-08 |url-status=live}}</ref> energy of reflectivity (weather radar), related to the amount of transmitted power returned to the radar receiver. Values above 20&nbsp;dB{{sub| Z}} usually indicate falling precipitation.<ref>{{cite web |title=Frequently Asked Questions |department=RIDGE Radar |publisher=U.S. [[National Weather Service]] |website=weather.gov |url=https://www.weather.gov/jetstream/radarfaq#reflcolor |access-date=2019-08-08 |archive-url=https://web.archive.org/web/20190331123302/https://www.weather.gov/jetstream/radarfaq#reflcolor |archive-date=2019-03-31 |url-status=live }}</ref>
; dB{{sub| sm}} : dB(m²) – decibel relative to one square meter: measure of the [[radar cross section]] (RCS) of a target. The power reflected by the target is proportional to its RCS. "Stealth" aircraft and insects have negative RCS measured in dB{{sub| sm }}, large flat plates or non-stealthy aircraft have positive values.<ref>{{cite web |title=dBsm |department=Definition |website=Everything&nbsp;2 |url=http://everything2.com/title/dBsm |access-date=2019-08-08 |archive-url=https://web.archive.org/web/20190610170944/https://everything2.com/title/dBsm?%2F |archive-date=10 June 2019 |url-status=live }}</ref>