ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE.
This report presents some wavenumber spectra of ambient noise recorded at Tonto Forest Observatory which showed exceptional simplicity. The coherent noise showed a very strong peak corresponding to a directional surface-mode wavetrain with frequency of about 0.2 cps, and two strongly concentrated pe...
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ftdtic:AD0803360 2023-05-15T17:21:27+02:00 ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. Binder, Frank H. Burg, John P. TEXAS INSTRUMENTS INC DALLAS SCIENCE SERVICES DIV 1966-09-15 text/html http://www.dtic.mil/docs/citations/AD0803360 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0803360 en eng http://www.dtic.mil/docs/citations/AD0803360 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Seismology *SEISMOLOGICAL STATIONS) (*SEISMIC WAVES ARIZONA ATLANTIC OCEAN PACIFIC OCEAN UNDERGROUND EXPLOSIONS NUCLEAR EXPLOSIONS DETECTION STORMS NOISE BACKGROUND BANDWIDTH TIME ENERGY NEWFOUNDLAND(PROVINCE) ALEUTIAN ISLANDS METEOROLOGICAL CHARTS TRANSFORMATIONS(MATHEMATICS) FOURIER ANALYSIS DENSITY LOW FREQUENCY MICROSEISMS NORTH PACIFIC OCEAN NORTH ATLANTIC SEISMIC ARRAYS SEISMIC NOISE VELA UNIFORM Text 1966 ftdtic 2016-02-19T04:59:18Z This report presents some wavenumber spectra of ambient noise recorded at Tonto Forest Observatory which showed exceptional simplicity. The coherent noise showed a very strong peak corresponding to a directional surface-mode wavetrain with frequency of about 0.2 cps, and two strongly concentrated peaks of body-wave energy which were stable over a fair bandwidth (0.75 < or = f < or = 1 + cps). These peaks in the wavenumber spectrum appear to be related to two strong storms, one in the North Atlantic just off the coast of Newfoundland and the other in the North Pacific, south of the Aleutians. These wavenumber spectra indicate that body-wave noise can be highly concentrated in f-k(vector) space and that large ocean storms may be a significant contributor to body-wave noise. The results suggest that body-wave noise might be expected to be nonisotropic and time-variant. (Author) Text Newfoundland North Atlantic Aleutian Islands Defense Technical Information Center: DTIC Technical Reports database Pacific Strong Peak ENVELOPE(-82.300,-82.300,-79.933,-79.933) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Seismology *SEISMOLOGICAL STATIONS) (*SEISMIC WAVES ARIZONA ATLANTIC OCEAN PACIFIC OCEAN UNDERGROUND EXPLOSIONS NUCLEAR EXPLOSIONS DETECTION STORMS NOISE BACKGROUND BANDWIDTH TIME ENERGY NEWFOUNDLAND(PROVINCE) ALEUTIAN ISLANDS METEOROLOGICAL CHARTS TRANSFORMATIONS(MATHEMATICS) FOURIER ANALYSIS DENSITY LOW FREQUENCY MICROSEISMS NORTH PACIFIC OCEAN NORTH ATLANTIC SEISMIC ARRAYS SEISMIC NOISE VELA UNIFORM |
spellingShingle |
Seismology *SEISMOLOGICAL STATIONS) (*SEISMIC WAVES ARIZONA ATLANTIC OCEAN PACIFIC OCEAN UNDERGROUND EXPLOSIONS NUCLEAR EXPLOSIONS DETECTION STORMS NOISE BACKGROUND BANDWIDTH TIME ENERGY NEWFOUNDLAND(PROVINCE) ALEUTIAN ISLANDS METEOROLOGICAL CHARTS TRANSFORMATIONS(MATHEMATICS) FOURIER ANALYSIS DENSITY LOW FREQUENCY MICROSEISMS NORTH PACIFIC OCEAN NORTH ATLANTIC SEISMIC ARRAYS SEISMIC NOISE VELA UNIFORM Binder, Frank H. Burg, John P. ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. |
topic_facet |
Seismology *SEISMOLOGICAL STATIONS) (*SEISMIC WAVES ARIZONA ATLANTIC OCEAN PACIFIC OCEAN UNDERGROUND EXPLOSIONS NUCLEAR EXPLOSIONS DETECTION STORMS NOISE BACKGROUND BANDWIDTH TIME ENERGY NEWFOUNDLAND(PROVINCE) ALEUTIAN ISLANDS METEOROLOGICAL CHARTS TRANSFORMATIONS(MATHEMATICS) FOURIER ANALYSIS DENSITY LOW FREQUENCY MICROSEISMS NORTH PACIFIC OCEAN NORTH ATLANTIC SEISMIC ARRAYS SEISMIC NOISE VELA UNIFORM |
description |
This report presents some wavenumber spectra of ambient noise recorded at Tonto Forest Observatory which showed exceptional simplicity. The coherent noise showed a very strong peak corresponding to a directional surface-mode wavetrain with frequency of about 0.2 cps, and two strongly concentrated peaks of body-wave energy which were stable over a fair bandwidth (0.75 < or = f < or = 1 + cps). These peaks in the wavenumber spectrum appear to be related to two strong storms, one in the North Atlantic just off the coast of Newfoundland and the other in the North Pacific, south of the Aleutians. These wavenumber spectra indicate that body-wave noise can be highly concentrated in f-k(vector) space and that large ocean storms may be a significant contributor to body-wave noise. The results suggest that body-wave noise might be expected to be nonisotropic and time-variant. (Author) |
author2 |
TEXAS INSTRUMENTS INC DALLAS SCIENCE SERVICES DIV |
format |
Text |
author |
Binder, Frank H. Burg, John P. |
author_facet |
Binder, Frank H. Burg, John P. |
author_sort |
Binder, Frank H. |
title |
ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. |
title_short |
ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. |
title_full |
ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. |
title_fullStr |
ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. |
title_full_unstemmed |
ARRAY RESEARCH. WAVENUMBER ANALYSIS OF TFO LONG-NOISE SAMPLE. |
title_sort |
array research. wavenumber analysis of tfo long-noise sample. |
publishDate |
1966 |
url |
http://www.dtic.mil/docs/citations/AD0803360 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0803360 |
long_lat |
ENVELOPE(-82.300,-82.300,-79.933,-79.933) |
geographic |
Pacific Strong Peak |
geographic_facet |
Pacific Strong Peak |
genre |
Newfoundland North Atlantic Aleutian Islands |
genre_facet |
Newfoundland North Atlantic Aleutian Islands |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0803360 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766105975652089856 |