Candidates for volcanoes under the ice of Antarctica detected by their gravito-topographic signal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00497346" target="_blank" >RIV/67985815:_____/17:00497346 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27350/17:10236213 RIV/00025615:_____/17:N0000010

Výsledek na webu

<a href="http://dx.doi.org/10.4401/ag-7427" target="_blank" >http://dx.doi.org/10.4401/ag-7427</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4401/ag-7427" target="_blank" >10.4401/ag-7427</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Candidates for volcanoes under the ice of Antarctica detected by their gravito-topographic signal

Popis výsledku v původním jazyce

We analysed the newest gravity field models (given in the form of spherical harmonic expansion to degree and order 2190) EIGEN 6C4 and RET 14, which consist basically from the gravity data from EIGEN 6C4 plus the bedrock topography from the Bedmap 2 model, describing the topography of the ground under the ice of Antarctica. From these models we computed the gravity anomalies, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angle and the virtual deformations. We applied these results for a selected part of Antarctica, not too far from the Lake Vostok we discovered at least two objects that might be subglacial volcanoes. We present all predictors and arguments we have available to support this hypothesis, but we are well aware that the last word waits for other specialists. We provide geographic coordinates on the ice surface where to dig for the possible volcanoes.

Název v anglickém jazyce

Candidates for volcanoes under the ice of Antarctica detected by their gravito-topographic signal

Popis výsledku anglicky

We analysed the newest gravity field models (given in the form of spherical harmonic expansion to degree and order 2190) EIGEN 6C4 and RET 14, which consist basically from the gravity data from EIGEN 6C4 plus the bedrock topography from the Bedmap 2 model, describing the topography of the ground under the ice of Antarctica. From these models we computed the gravity anomalies, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angle and the virtual deformations. We applied these results for a selected part of Antarctica, not too far from the Lake Vostok we discovered at least two objects that might be subglacial volcanoes. We present all predictors and arguments we have available to support this hypothesis, but we are well aware that the last word waits for other specialists. We provide geographic coordinates on the ice surface where to dig for the possible volcanoes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Annals of Geophysics

ISSN

1593-5213

e-ISSN

—

Svazek periodika

60

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000419503300005

EID výsledku v databázi Scopus

2-s2.0-85034809310