SEA LEVEL STATION MONITORING FACILITY
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Station metadata
Code paak
Country USA
Location Port_Alexander_AK
Status Operational
Added to the system 2006-06-07 04:30:00
Local Contact National Ocean Service-NOAA ( USA )
Long-term MSL data
Latitude 56.2467
Longitude -134.6467
Connection GTS message
GTS message type SXXX03
GTS station code 3360C394
Transmit interval (min) 6
Transmit lag UTC (sec) 0
Ave. transmit delay (min) 6
Messages received (24h) 228
Messages expected (24h) 240
Sensor 1
Type of sensorpwl (primary water level)
Sampling rate (min)1
    GTS format
Units of measurem
First value3
Samples6
Reversed orderyes
    Performance statistics
Last data measured at2025-04-26 02:47:00
Last data received at2025-04-26 02:52:07
Measurements received in 24h1374
Measurements expected1440
Performance ratio95%
Sensor 2
Type of sensorbwl (backup water level)
Sampling rate (min)1
    GTS format
Units of measurem
First value3
Samples6
Reversed orderno
    Performance statistics
Last data measured at1960-01-01 00:00:00
Last data received at1960-01-01 00:00:00
Measurements received in 24h0
Measurements expected1440
Performance ratio0%
Period SignalsData

12h
day
7 days
30 days
 pwl (primary water level)
bwl (backup water level)
Remove outliers
Remove spikes 		Relative levels = signal - median over selected period
Absolute levels = as received
Offset signals = relative levels + offset
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