Abir Raihan is a geospatial data engineer with 10+ years of experience building cloud data platforms, spatial pipelines, APIs and decision-support systems.https://abirraihan.dev/https://abirraihan.dev/blog/soil-ph-spatial-aggregation/https://abirraihan.dev/blog/soil-ph-spatial-aggregation/Why an area-weighted mean of soil pH and a back-transformed mean of hydrogen-ion activity answer different questions — and why the answer also depends on field boundaries, sample coverage, and the scale at which zones are aggregated.Tue, 29 Sep 2026 00:00:00 GMThttps://abirraihan.dev/blog/welcome/https://abirraihan.dev/blog/welcome/A home for my geospatial engineering case studies, technical practice and writing.Sat, 19 Sep 2026 00:00:00 GMT