Regarding Bangladesh, there was something in the press about a year ago that said Bangladesh is actually ADDING land area, because so much dirt /
glacial silt is washed down the huge
rivers, and is deposited in the deltas, so that even with sea level rise, more land is created.
So you've gone through and looked at all the individual tidal gauges, corrected for local effects like post
glacial rebound from the last ice age, local subsidence due to soil compaction or groundwater removal, local soil buildup due to tidal or
river silt deposition, discontinuities due to earthquakes, and the like?