Signy (South Orkney Islands) Phase 1 Site History

History Summary

Station Name Signy, South Orkney Is.
Latitude 60° 42.0' S
Longitude 045° 36.0' W
Country U.K.
Gloss No 306
Time Reference GMT(00-23 hours)
Contributor Proudman Oceanographic Laboratory,
Joseph Proudman Building,
6 Brownlow Street,
Liverpool,
L3 5DA. U.K.
Observation Period December 1988 - March 2000
Instrument Type Digiquartz pressure sensor
Site of Gauge  

Warning

Please Note: The data currently held and documented here are not the 'finished article'. The contributor is presently reprocessing this data set. The replacement data will be screened and documented at a later stage.

Parameters recorded

Period Parameters Sample Interval
12 1988 - 09 1989 AP,ST,SP,SP 60 mins
11 1989 - 10 1990 AP,ST,SP,SSP 15 mins
11 1990 - 03 1991 AP,ST,SP,SSP 15 mins
02 1991 - 02 1992 AP,ST,SP,SSP 60 mins
01 1992 - 11 1992 AP,ST,SP,SSP 15 mins
11 1992 - 08 1994 AP,ST,SP,SSP 60 mins
03 1994 - 01 1995 AP,ST,BT,LT,SSP,SSP 60/15 mins
(see note below)
01 1995 - 01 1996 AP,ST,BT,LT,SSP,SSP 15 mins
01 1996 - 12 1996 AP,ST,BT,LT,SSP,SSP 15 mins
01 1997 - 03 1997 AP,ST,BT,LT,SSP,SSP 15 mins
11 1999 - 03 2000 AP,ST,LT,SSP 15 mins

where:

Note: The '03 1994 - 01 1995' data file consists of data sampled at 60 minute and 15 minute intervals. The sample interval is 60 minutes until (1994)308: thereafter 15 minutes.

Completeness Index

Datum Information

Not available

Quality Assessment

All data have been tidally analysed and constants and residuals checked. Records have been visually inspected for spikes and timing shifts. During the winter months, the sea temperature measurements hardly vary, possibly due to ice.

Period Parameters Comments
12 1988 - 09 1989 SP Questionable Fluctuations: (1989) 119 - 128
  ST Gap: (1989) 059 - 097
  AP Marked: (1989) 036,042,146
11 1989 - 10 1990 All None
11 1990 - 03 1991 AP Null data channel
  ST Null data channel
02 1991 - 02 1992   All Gaps: (not infilled with null values) (1991)
33-36,37,39,44,65-74,75,80,80-82,83,98, 103-104,
107-109,118,203-209,210,212-213,214, 215,225-226,
229-236,237,238-242,244-252, 255-256,257,260-261,
327,329-331,334,335-338, 359-361
Questionable Fluctuations: Timing out throughout the file.
11 1992 - 11 1992 AP Gap: (1992) 005 - 006,254-259,289-328
  SP Gap: (1992) 005 - 006,254-259,289-328
11 1992 - 08 1994 All Gap: (not infilled with null values) (1993) 060 - 061
Gap: (infilled with null values) (1994) 051 - 053
  AP Gap: (1993) 183,184,185,188-189
Questionable Fluctuations: None
03 1994 - 01 1995 All Questionable Fluctuations: Timing out throughout the file.
  ST Gap: (1994) 074-334
  SSP2 Gap: (1994) 074-334
  SSP1 Gap: (1994) 300-305, 308-(1995)003
  LT Gap: (1994) 074-308
  BT Gap: (1994) 074-308, 334-(1995)003
01 1995 - 01 1996 All Gap: (1995) 334-335
  ST Gap: (1995) 329-(1996)001
Questionable Fluctuations: Timing out throughout the file.
01 1996 - 12 1996 All Questionable Fluctuations: Timing out throughout the file.
  ST Null data channel
  LT Null data channel
01 1997 - 03 1997 AP Marked: 015,089
  ST Sea temperature data are useless
  BT Marked: 007-009,011-090.
Unmarked data to be used with caution.
Tendancy to flatten out at 18°C.
  LT Marked: 015,089
  SSP1 Marked: 015,038-039,043-090
  SSP2 Marked: 011-016,018-090
11 1999 - 03 2000 All None