Gravity anomaly

This study is to evaluate the precision of some new global Earth Gravitational Models in the East Vietnam Sea, selecting the best model. The method and the program for calculating Free air gravity anomaly from the global earth gravitational model have been researched and developed. Evaluation of the precision of the models is done by comparing the models with ship-derived gravity anomalies. Data with anomalous signs are detected and removed when the deviation exceeds three times the root mean square deviation.

13p dianmotminh02 03-05-2024 1 1   Download

Gravity data inversion or interpretation requires the removal of the gravitational effects of the a priori known geologic and/or morphologic features within the Earth’s system to model and reveal the remaining signals of the unknown anomalous subsurface density distributions. The Bouguer gravity anomalies reduced by the normal gravitational field of the Earth and the gravitational attraction of the topographic masses above the sea level are frequently used in geophysics for this purpose.

12p tanmocphong 29-01-2022 8 0   Download

This paper presents a comparative study of two different forward methods such as the space domain method and the frequency domain method. The performance of each method was evaluated on two synthetic models. Finally, the more effective method was applied to calculate Bouguer gravity anomaly in the East Vietnam Sea and adjacent areas using the latest available dataset from the TOPEX mission.

9p tamynhan6 14-09-2020 21 3   Download

Chương trình được xây dựng nhằm xác định mặt móng kết tinh nằm bên dưới các lớp trầm tích, từ các giá trị dị thường trọng lực đo trên mặt đất khi không biết hiệu mật độ của các lớp trầm tích. Mời các bạn cùng tham khảo.

10p bautroibinhyen17 13-02-2017 61 4   Download