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North American Grid-Based Offshore Sampling Frames


Publication Date
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Cox, J.H., Straw, B.R., and Reichert, B.E., 2022, North American Grid-Based Offshore Sampling Frames: U.S. Geological Survey data release,


This sampling frame is a set of grid-based, finite-area frames spanning the offshore areas surrounding Canada, the United States, and Mexico, and is intended for use with the North American Bat Monitoring Program (NABat). NABat is a continental collaboration including state and provincial, federal, and local agencies intended to standardize the collection and storage of bat data. Alaskan and Canadian waters are combined into a single grid. There are 5 grids in total: Alaska/Canada Offshore grid, Continental United States Offshore grid, Mexico Offshore grid, Hawaii Offshore Grid, and Caribbean Offshore grid. Grids boundaries are based on World Exclusive Economic Zone oceanic political boundaries and extend into the shoreline 30 kilometers.

Child Items (5)


Point of Contact :
Brian E Reichert
Originator :
James H Cox III, Brian E Reichert, Bethany R Straw
Metadata Contact :
FORT Metadata Specialist
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Fort Collins Science Center
USGS Mission Area :

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These sampling frames were created to facilitate contributions of bat data collected in offshore areas surrounding North America to the North American Bat Monitoring Program.


Spatial Services

ScienceBase WMS


  • Fort Collins Science Center (FORT)
  • USGS Data Release Products

Associated Items



Additional Information


Type Scheme Key
DOI doi:10.5066/P9XBOCVV

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