O-Dedja/Nilometer-measurements

A look into some surviving continous records of one of nilometers in Egypt # Nilometer Measurements Compact analysis of the yearly Nile minima (622–1284 AD) measured at the Roda Island nilometer near Cairo. The series is kept largely raw, we add a LOWESS trend, a small set of historical notes plus some brief long-memory checks. ## Main plot ## Dataset Overview - **Time period**: 622–1284 AD (663 measurements) - **Measurement location**: Roda Island nilometer, Cairo, Egypt - **Unit**: Millimeters (originally recorded in cubits; 1 cubit = 524 mm) - **Key changepoint**: Year 715 (documented sensor technology upgrade) ## References/inspiration - link.springer.com - mldata-static.ml.tu-berlin.… - search.r-project.org - github.com - en.wikipedia.org - mldata-static.ml.tu-berlin.… - histography.io - tandfonline.com - egyptianstreets.com - en.wikipedia.org