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gptkbp:instanceOf
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physical phenomenon
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gptkbp:alsoKnownAs
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booming sand
whistling sand
booming dunes
singing dunes
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gptkbp:audio
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sand grains moving
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gptkbp:culturalSignificance
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gptkb:tourist_attraction
gptkb:Chinese_folk_religion
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gptkbp:firstDescribed
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ancient times
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gptkbp:foundIn
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gptkb:Australia
gptkb:California
gptkb:Chile
gptkb:China
gptkb:Death_Valley_National_Park
gptkb:Iran
gptkb:Kazakhstan
gptkb:Mongolia
gptkb:Morocco
gptkb:Namib_Desert
gptkb:Namibia
gptkb:Nevada
gptkb:Oman
gptkb:Qatar
gptkb:United_States
gptkb:Badain_Jaran_Desert
gptkb:Altyn-Emel_National_Park
gptkb:Gobi_Desert
gptkb:Dunhuang
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https://www.w3.org/2000/01/rdf-schema#label
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Singing Sand Dunes
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gptkbp:notableExample
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gptkb:Kelso_Dunes
gptkb:Sand_Mountain
Altyn-Emel Dune
Badain Jaran Dunes
Mingsha Shan
Namib Desert Dunes
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gptkbp:requires
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dry sand
specific humidity
specific grain size
well-sorted sand grains
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gptkbp:soundDescribedAs
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singing
roaring
booming
humming
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gptkbp:soundDuration
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up to several minutes
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gptkbp:soundFrequency
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50 to 300 Hz
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gptkbp:soundVolume
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up to 105 decibels
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gptkbp:studiedBy
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geologists
physicists
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gptkbp:bfsParent
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gptkb:Dunhuang,_Gansu,_China
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gptkbp:bfsLayer
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7
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