Charleston (South Carolina,USA) Site History

History Summary

Station Name Charleston,SC
Country USA
Latitude 32° 47.0' N
Longitude 079° 56.0' W
GLOSS No.  
Time Reference GMT (hours 00-23)
Contributor National Ocean Service (NOS)
National Ocean. and Atmos. Administration (NOAA)
Instrument Type Aquatrak acoustic gauge,
NOAA Next Generation Water Level Measuring System (NGWLMS)
Site of Gauge  
Observational Period 1985-1996

Reference Level

All heights have been referred to the station tide staff zero which is linked to fixed benchmarks.

Quality Assessment by the UH Sea Level Center

Comments

The residual series are very noisy which is probably due to shallow water tides that are not resolved by the harmonic analysis. Consequently, only questionable fluctuations greater than 40 cm are noted below that may represent timing inaccuracies.

The daily plot shows noise due to a great amount of energy with periods from 3 to 15 days. The monthly plot reveals a consistent annual and semi-annual signal.

Year CI(%) Missing Data Replaced Gaps or Bad Data Questionable Fluctuations
1985 94 1,208-228 none none
1986 99 288-289 (22)280-(08)281 (12)300-(08)301 332-334
1987 100 none none 297-300
1988 100 none none none
1989 96 273-288 none none
1990 81 217-247,259-261,327-365 (20)275-(09)276 55
1991 86 1-45,47-51,109-112 (16)113-(12)114 (17)317-(12)318 none
1992 99 28-31,216-217 none 37
1993 100 none (09)174-(16)174 none
1994 100 none none none
1995 100 none none none
1996 100 none none none