One of the basic reference points in coastal science has been less reliable than many researchers assumed. A growing body of work now shows that sea-level estimates can drift off course when ...
No audio available for this content. My last column highlighted an ArcGIS web application that incorporates various datasets and data layers to assist surveyors planning vertical control surveys. On ...
No audio available for this content. On Aug. 10, the National Geodetic Survey (NGS) released its latest experimental geoid model, xGeoid18. In early 2019, NGS is scheduled to release its next hybrid ...
Scientists studying coastal flood risk have been working with sea-level estimates that are systematically too low, according to a study published in Nature on March 4, 2026. Researchers Christian ...
A meta-analysis of sea-level rise studies shows a majority of assessments mistakenly used geoid models rather than land elevation data.