3D displacement velocity estimates associated with groundwater exploitation in Jakarta using satellite radar interferometry (2014–2025)
What's in it
This dataset provides 3D ground displacement velocity estimates for the Jakarta city and metropolitan area derived from InSAR observations. The displacement vectors are derived using an internally constrained strapdown decomposition method, which estimates physically meaningful displacement components from ascending and descending InSAR Line-of-Sight (LoS) observations. The final distributed 3D velocity field is connected to the Sunda Plate Fixed Frame through a uniform datum connection based on GNSS data. The strapdown approach enables so-called “3D-global / 2D-local” solutions by incorporating minimal but meaningful contextual information about the expected physical behavior and/or spatial geometry of the deformation field [1]. The method defines a local reference system with transversal, longitudinal, and normal (TLN) directions, with motion restricted to the transversal-normal (TN) plane. The method allows for the incorporation of prior uncertainty in the local frame orientation, enabling propagation of this uncertainty to the final displacement estimates. This supports cartographic visualization using vector fields with confidence ellipses, enhancing interpretability. See …
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