Power Spectrum Analysis of the Satellite Gravity Anomalies Data to Estimate the Thickness of Sediment Deposits in the Purwokerto-Purbalingga Groundwater Basin

DOI

10.2991/apr.k.220503.022How to use a DOI?

Keywords

power spectrum; satellite gravity anomalies data; sediment deposits; Purwokerto-Purbalingga Groundwater Basin

Abstract

Analysis of power spectrum of the satellite gravity anomalies data has been carried out to estimate the thickness of sediment deposits in the Purwokerto-Purbalingga Groundwater Basin. Power spectrum analysis uses the Fourier transform principle by converting data from the space domain to the frequency domain. Spectrum analysis has been done on all trajectories placed on the gravity anomaly map which has been corrected and transformed on the horizontal surface. The gradient of the gravity anomalies data spectrum graph is proportional to the depth of the anomaly source boundary plane. The calculation results show that the average depth of the boundary plane of the local anomaly source for each trajectory is 470.89 m. This depth is calculated from the topographic surface, so that this value indicates the thickness of sediment deposits in the Purwokerto-Purbalingga Groundwater Basin.

Copyright

© 2022 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article distributed under the CC BY-NC 4.0 license.

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TY  - CONF
AU  - Sehah
AU  - Urip Nurwijayanto Prabowo
AU  - Sukmaji Anom Raharjo
AU  - Laila Ariska
PY  - 2022
DA  - 2022/05/25
TI  - Power Spectrum Analysis of the Satellite Gravity Anomalies Data to Estimate the Thickness of Sediment Deposits in the Purwokerto-Purbalingga Groundwater Basin
BT  - Proceedings of the Soedirman International Conference on Mathematics and Applied Sciences (SICOMAS 2021)
PB  - Atlantis Press
SP  - 109
EP  - 117
SN  - 2352-541X
UR  - https://doi.org/10.2991/apr.k.220503.022
DO  - 10.2991/apr.k.220503.022
ID  - 2022
ER  -