SDUST2020MGCR: Global Marine Gravity Change Rate Model from Multi-Satellite Altimetry

SDUST2020MGCR is a global marine gravity change rate model. It covers latitudes from 70°S to 70°N and longitudes from 0° to 360°E on a 5-arcminute grid. The model was created by Fengshun Zhu of the Chinese Academy of Sciences using multi-satellite altimeter data.

Use Cases

• Modeling long-term changes in Earth's gravity field based on the described gravity change rate data.
• Analyzing geophysical processes like ocean mass redistribution based on marine gravity change rates.
• Validating other satellite-derived gravity or sea level products using this independent model.
• Studying crustal deformation and glacial isostatic adjustment in coastal regions based on gravity change signals.

Strengths

• The model provides global coverage for marine areas between 70°S and 70°N.
• Data is provided on a consistent 5-arcminute by 5-arcminute spatial grid.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Fengshun Zhu, Chinese Academy of Sciences

Collection Method

Determined from multi-satellite altimeter data.

Geography

Global marine coverage from 70°S to 70°N, 0° to 360°E.