Inundation Analysis Tool

9455760 Nikiski, AK

Please see the data inventory to find a period with hourly or six-minute data available.
Data Inventory

Select a reference elevation and specify a date range for analysis.

You may select from an accepted tidal datum or specify a different elevation.
Most elevations on land are given relative to a geodetic datum such as NAVD88

All analysis results are presently provided in meters relative to the requested threshold.

Meters relative to MHHWFeet relative to MHHWDatum
MHHW 0.0 0.0 Mean Higher-High Water
MHW -0.223 -0.73 Mean High Water
DTL -3.131 -10.27 Mean Diurnal Tide Level
MTL -2.917 -9.57 Mean Tide Level
MSL -2.82 -9.25 Mean Sea Level
MLW -5.612 -18.41 Mean Low Water
MLLW -6.262 -20.54 Mean Lower-Low Water
NAVD88 -4.057 -13.31 North American Vertical Datum
User Specified Elevation         in       relative to   

Note: Data query is limited to a 10 year maximum and 1 month minimum date range when requesting an analysis of 6-minute data

6-minute Height and High Water Analysis
Hourly Height and High Water Analysis
Hourly Height Analysis