GravtityEffect

This Julia package contains functions for computation of gravity effect of following bodies:

• Bouguer plate: bouguerEffect
• Cylinder: cylinderEffect
• Point mass (or sphere): pointEffect
• Prism (in Cartesian coordinate system) prismEffect
• Tesseroid in geodetic (longitude, latitude, height) coordinates tesseroid

To compute gravity effect time series use:

• layerResponse: gravity response to (soil) layers copying the terrain (digital elevation model) in arbitrary depths. The output of this function can be used in:
• sm2effect: convert soil moisture (m³/m³) to gravity effect time series (nm/s²)

The repository also contains files for computation/downloading of:

• Polar motion and Length of Day effects: eopEffects
• Atmacs atmospheric effect on surface gravity: atmacsEffect
• EOST Loading effects (atmosphere, hydrology, non-tidal ocean loading and pol/LOD effects)

Check the function help for instructions and example usage

Following auxiliary functions are provided:

• distance between points (2D or 3D): distance
• convert prism to point mass (convert density and prism resolution to mass) prism2point
• compute Earth's curvature effect on height (Cartesian coordinates are used): curvatureEffect
• correct height for Earth's curvature: correctCurvature
• find points inside a polygon: inpolygon
• aggregate unit layerResponse to required depth range: aggregate_layers

In addition, following constants are used (not global):

• G: gravity constant
• R: radius of Earth replacement sphere

Usage

• Check the function help for instructions and example usage, e.g., ?bouguerEffect

Check the REQUIRE file for required packages
FileTools.jl and ResampleAndFit.jl packages can downloaded from GitHub