Open AccessEnvironmental Influence Analysis of Global Gravity Anomaly Gradient Basing on Neighbourhood Satistics in GIS
Author(s) -
Chunlin Yang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/661/1/012002
Subject(s) - anomaly (physics) , gravity anomaly , geology , geophysics , degree (music) , free air gravity anomaly , geodesy , surface gravity , physics , bouguer anomaly , astrophysics , paleontology , oil field , condensed matter physics , acoustics , stars
A series of abnormal environmental phenomena were found related with local earth gravity field anomaly through statistics and calculation analysis. Gravity anomaly gradient was used to describe gravity anomaly change in local extent. Total of 79% in earth surface gravity anomaly gradient express stable ( 50 mGal/Degree), of 3.43% area gravity anomaly gradient is very high (> 70 mGal/Degree). While gravity anomaly is over 30 mGal/Degree, there will may more easily appear sandstorm, tornadoes and haze weather, if thermodynamic conditions and material conditions are proper. Many natural disasters start from these areas, where gravity anomaly gradient is very high.