File:Akblue52a 256 064c.jpg

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Akblue52a_256_064c.jpg ‎(300 × 137 pixels, file size: 15 KB, MIME type: image/jpeg)

Summary

Description
English: Spectrogram of 52 Hz "whale-like" signals, which were first reported by Watkins et al.(2000). On average these tones had a center frequency of 51.75 Hz and lasted 5-7 sec. These tones are usually produced in groups of 2-6 and were recorded in the NE Pacific.
Date
Source http://www.pmel.noaa.gov/vents/acoustics/whales/sounds/sounds_52blue.html
Author NOAA

Licensing

Public domain
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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Captions

Spectrogram of 52 Hz whale like signals

Items portrayed in this file

depicts

52-hertz whale

inception

17 September 2012

MIME type

image/jpeg

checksum

ffd0104f2fd62025a00433eba9f08b710642ad3d

determination method: SHA-1

data size

14,980 byte

height

137 pixel

width

300 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current18:51, 17 September 2012Thumbnail for version as of 18:51, 17 September 2012300 × 137 (15 KB)BraincricketUser created page with UploadWizard
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