Altered orientation and flight paths of pigeons reared on gravity anomalies: a GPS tracking study. [PDF]
PLoS 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 +3 more sources
Segmentation of the Himalayas as revealed by arc-parallel gravity anomalies. [PDF]
Sci Rep, 2016 Lateral variations along the Himalayan arc are suggested by an increasing number of studies and carry important information about the orogen’s segmentation.
Hetényi G +10 more
europepmc +2 more sources
Comparative Study on Predicting Topography from Gravity Anomaly and Gravity Gradient Anomaly [PDF]
Remote Sensing, 2023 Owing to the dependence of algorithms on the measurement of ship soundings and geophysical parameters, the accuracy and coverage of topography still need to be improved. Previous studies have mostly predicted topography using gravity or gravity gradient,
Huan Xu +5 more
doaj +2 more sources
Global Anomalies in Canonical Gravity [PDF]
Nuclear Physics B, 1998 In this note we study the structure of diffeomorphism anomalies in 3+1 canonical gravity coupled to a chiral massless fermion. We find that when the spatial manifold is S^3 or a Lens space L(p,q), the first homotopy group of the related diffeomorphism ...
Atiyah +18 more
core +5 more sources
Chern-Simons Gravity and Holographic Anomalies [PDF]
Journal of High Energy Physics, 2004 We present a holographic treatment of Chern-Simons (CS) gravity theories in odd dimensions. We construct the associated holographic stress tensor and calculate the Weyl anomalies of the dual CFT.Comment: Added references, and minor corrections. 21 pages,
Banados, M., Schwimmer, A., Theisen, S.
core +7 more sources
Refining satellite Altimetry-Derived gravity anomaly model with shipborne gravity using multilayer perceptron neural networks [PDF]
Scientific ReportsThis study refines the gravity anomaly model derived from altimetry data by employing a multilayer perceptron (MLP) neural network to integrate multi-source geophysical data (longitude, latitude, gravity anomaly, geoid height, bathymetry, and sediment ...
Chengjun Xiao +5 more
doaj +2 more sources
GRAVITY ANOMALIES OF THE MOON [PDF]
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
S. G. Pugacheva, V. V. Shevchenko
doaj +2 more sources
SDUST2023GRA_MSS: the new global marine gravity anomaly model determined from mean sea surface model [PDF]
Scientific DataThe global marine gravity anomalies are primarily recovered from geoid gradients in the along-track directions obtained through satellite altimetry. However, the accuracy of the gravity model is significantly constrained by the sparse geoid gradients in ...
Jinyun Guo +5 more
doaj +2 more sources
On the ratio of dynamic topography and gravity anomalies in a dynamic Earth
Geophysical Research Letters, 2016 Lorenzo Colli +2 more
exaly +2 more sources
Global marine gravity anomalies from multi-satellite altimeter data
Earth, Planets and Space, 2022 In this study, China’s first altimeter satellite Haiyang-2A (HY-2A) data combined observations from CryoSat-2, SARAL/AltiKa, and Jason-1&2 are used to calculate the global (60°S–60°N) marine deflections of the vertical and gravity anomalies named Global ...
Xiaoyun Wan +5 more
semanticscholar +1 more source