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Statements

Subject Item
n2:RIV%2F67985815%3A_____%2F10%3A00354962%21RIV11-MSM-67985815
rdf:type
n15:Vysledek skos:Concept
dcterms:description
We have surveyed the Earth's surface using gravity anomalies and second-order radial derivatives of the disturbing gravitational potential computed from the gravitational model EGM2008 complete to degree and order 2159 (for selected degrees up to 2190). It corresponds to 5 arcmin resolution on the ground. Over most well known impact crater sites on the Earth we found the second-order derivatives (not available from ordinary gravity surveys) offered finer discrimination of circular features than the gravity anomalies themselves. We also discovered that some of the sites show evidence of double or multiple craters which will need further ground verification. Some of these signatures (in hilly or mountainous terrain) may also need to be corrected for the gravitational effect of topography to sharpen their hidden features. We have surveyed the Earth's surface using gravity anomalies and second-order radial derivatives of the disturbing gravitational potential computed from the gravitational model EGM2008 complete to degree and order 2159 (for selected degrees up to 2190). It corresponds to 5 arcmin resolution on the ground. Over most well known impact crater sites on the Earth we found the second-order derivatives (not available from ordinary gravity surveys) offered finer discrimination of circular features than the gravity anomalies themselves. We also discovered that some of the sites show evidence of double or multiple craters which will need further ground verification. Some of these signatures (in hilly or mountainous terrain) may also need to be corrected for the gravitational effect of topography to sharpen their hidden features.
dcterms:title
Detection of Earth impact craters aided by the detailed global gravitational model EGM2008 Detection of Earth impact craters aided by the detailed global gravitational model EGM2008
skos:prefLabel
Detection of Earth impact craters aided by the detailed global gravitational model EGM2008 Detection of Earth impact craters aided by the detailed global gravitational model EGM2008
skos:notation
RIV/67985815:_____/10:00354962!RIV11-MSM-67985815
n3:aktivita
n13:S n13:P n13:Z
n3:aktivity
P(LC506), S, Z(AV0Z10030501), Z(CUZ0002561501)
n3:cisloPeriodika
1
n3:dodaniDat
n4:2011
n3:domaciTvurceVysledku
n9:9493719
n3:druhVysledku
n16:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
253638
n3:idVysledku
RIV/67985815:_____/10:00354962
n3:jazykVysledku
n10:eng
n3:klicovaSlova
global gravitational model; gravity anomaly; impact craters on the Earth
n3:klicoveSlovo
n12:impact%20craters%20on%20the%20Earth n12:gravity%20anomaly n12:global%20gravitational%20model
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[C767873C451F]
n3:nazevZdroje
Acta geodynamica et geomaterialia
n3:obor
n14:BN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n17:LC506
n3:rokUplatneniVysledku
n4:2010
n3:svazekPeriodika
7
n3:tvurceVysledku
Kostelecký, J. Klokočník, Jaroslav Novák, P. Wagner, C. A.
n3:wos
000277686900008
n3:zamer
n11:CUZ0002561501 n11:AV0Z10030501
s:issn
1214-9705
s:numberOfPages
27