Results 1 to 10 of about 6,990 (259)

Altered orientation and flight paths of pigeons reared on gravity anomalies: a GPS tracking study. [PDF]

open access: yesPLoS ONE, 2013
The mechanisms of pigeon homing are still not understood, in particular how they determine their position at unfamiliar locations. The "gravity vector" theory holds that pigeons memorize the gravity vector at their home loft and deduct home direction and
Nicole Blaser   +4 more
doaj   +1 more source

Comparison of Geologic Structure Detection of Sumatera Island Using Goce Satellite Gravity Data and Sgg-Ugm-2 Data

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2022
GOCE gravity satellite data can be used for regional fault detection because the observation area is wide and not limited by area. In this study, GOCE satellite data is used to detect geological structures on the island of Sumatra, the results of which ...
Al Shida Natul, Leni Sophia Heliani
doaj   +1 more source

Mare Orientale Gravity Anomaly [PDF]

open access: yesNature, 1970
SJOGREN has reported that there is an annular negative gravity anomaly surrounding a small positive anomaly over the central basin of Mare Orientale (paper given at the NATO Advanced Study Institute on the Moon and Planets, Newcastle, April 1970). I should like to point out that outside this negative ring, there is a positive ring and perhaps further ...
openaire   +2 more sources

Anomalies of the Vertical Gradient of Gravity Associated with Anomalies of Gravity.

open access: yesJournal of Physics of the Earth, 1952
The gravity anomaly is necessarily associated with the anomaly of the vertical gradient of gravity. The relation between the two kinds of anomaly has been invest gated. The anomaly of the vertical gradient is sometimes too large to be neglected in the free air reduction of gravity.
openaire   +2 more sources

Marquardt inverse modeling of the residual gravity anomalies due to simple geometric structures: A case study of chromite deposit

open access: yesContributions to Geophysics and Geodesy, 2019
In this paper, an inversion method based on the Marquardt’s algorithm is presented to invert the gravity anomaly of the simple geometric shapes. The inversion outputs are the depth and radius parameters. We investigate three different shapes, i.e.
Ata ESHAGHZADEH   +2 more
doaj   +1 more source

ANALYSIS AND INTERPRETATION OF TIME-LAPSE MICORGRAVITY DATA CASE STUDY IN KOTA LAMA SEMARANG TOURISM AREA

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2020
A time-lapse microgravity survey has been carried out in the Kota Lama (Semarang, Indonesia) tourism area. The survey in question is to measure gravity at the same point repeatedly with a specific time interval, in this case, conducted in January 2019 ...
Supriyadi Supriyadi   +2 more
doaj   +1 more source

Lineament Extraction using Gravity Data in the Citarum Watershed

open access: yesIndonesian Journal of Geography, 2021
Lineament is one of the most important features showing subsurface elements or structural weakness such as faults. This study aims to identify subsurface lineament patterns using automatic lineament in Citarum watershed with gravity data.
Gumilar Utamas Nugraha   +3 more
doaj   +1 more source

A Simple Neural Network Approach to Mineral Potential Mapping Using Open Gravity Data [PDF]

open access: yesE3S Web of Conferences
As a fundamental approach in machine learning, neural networks have evolved through phases of emergence, relative dormancy, and subsequent flourishing since their inception.
Ji Jiaxin
doaj   +1 more source

Gravity pattern in southeast margin of Tibetan Plateau and its implications to tectonics and large earthquakes

open access: yesEarth and Planetary Physics, 2019
There are many active faults in the southeast margin of Tibetan Plateau, where three large active faults zones, the Longmenshan, Xianshuihe and Anninghe, merge to form a "Y" shape. Strong crustal deformation and a complicated fault distribution accompany
Yue Wu, Yuan Gao
doaj   +1 more source

GRAVITY ANOMALIES OF THE MOON [PDF]

open access: yesProceedings of the International conference “InterCarto/InterGIS”, 2015
The source of gravity anomalies of the Moon are large mascons with a high mass concentration at a depth of volcanic plains and lunar Maria. New data on the gravitational field of the Moon were obtained from two Grail spacecrafts. The article presents the data of physical and mechanical properties of the surface soil layer of the lunar Maria and gives ...
S. G. Pugacheva, V. V. Shevchenko
openaire   +2 more sources

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