Inundation Analysis Tool

8447435 Chatham, MA

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 -0.114 -0.37 Mean High Water
DTL -0.789 -2.59 Mean Diurnal Tide Level
MTL -0.821 -2.69 Mean Tide Level
MSL -0.8 -2.62 Mean Sea Level
MLW -1.528 -5.01 Mean Low Water
MLLW -1.578 -5.18 Mean Lower-Low Water
NAVD88 -0.818 -2.68 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