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The diurnal cycle of temperature and wind velocity and animal low-frequency calls

  • University of Virginia

Research output: Contribution to conferencePaperpeer-review

Abstract

The effect of changes in near-surface atmospheric thermal stratification and wind velocity over a daily 24-h cycle upon the transmission of low-frequency animal calls is shown. The area ensonified changes from 30 km2 during the day to over 300 km2 in the early evening. The role of thermal stratification and fluctuations in wind velocity in governing these changes in transmission is discussed. Intranocturnal changes in the thermal and velocity fields of the atmosphere interrupt the optimum nighttime conditions with periods of poor acoustic conditions.

Original languageEnglish
Pages868-870
Number of pages3
StatePublished - 2002
Event2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) - Toronto, Ont., Canada
Duration: Jun 24 2002Jun 28 2002

Conference

Conference2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002)
Country/TerritoryCanada
CityToronto, Ont.
Period06/24/0206/28/02

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