Modified Soil Adjusted Vegetation Index (MSAVI) in proximity to dolerite dikes in the Main Karoo Basin, South Africa during wet (January-March) and dry seasons (June-August) of 2018 and 2021. MSAVI scenes are combined with graphs of MSAVI response as a function of lateral distance to dolerite dikes. This dataset is Appendix A to Radebe and Clark (submitted).

Modified Soil Adjusted Vegetation Index was calculated using Planet Labs 3-meter resolution multispectral imagery in proximity to 505 dolerite dikes in the Main Karoo Basin. The imagery was collected during wet (January-March) and dry (June-August) seasons of 2018 and 2021.

MSAVI pixel values were visualized graphically against the lateral distance from dolerite dikes to a 300m extent. Green points represent MSAVI pixel values during the wet season and brown points represent MSAVI pixel values during the dry season.

The MSAVI imagery & associated graphs illustrate the spatiotemporal variability of vegetation in relation to dolerite dikes.