NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
Station APNM4 - Alpena Harbor Light, Alpena, MI
Owned and maintained by Great Lakes Environmental Research Laboratory
C-MAN Station
45.060 N 83.424 W (45°3'35" N 83°25'25" W)
Site elevation: 177.5 m above mean sea level
Air temp height: 15 m above site elevation
Anemometer height: 18 m above site elevation
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Links which are specific to this station are listed below:
Data for last 45 days:
- Real time standard meteorological data and their description.
- Real time derived measurements data and their description.
- Quality controlled data for 2025 (data descriptions)
- Historical data (data descriptions)
- Search historical meteorological data for observations that meet your threshold conditions
Some data files have been compressed with the GNU gzip program.
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