s4 Current Meter data for 4 sites around Cleveland Bay (QLD) in 1993

Researchers: Ridd, Peter, Professor (Principal investigator)

Brief description This is data collected during dredging by the Townsville Port Authority in Cleveland Bay in 1993. Data are divided into a number of main groups: Wind, tide gauge, wave rider, S4, sediment traps, water samples and nephelometers. Unique site numbers were assigned within Cleveland Bay at which data were collected. Some of these sites were named, and others were unnamed.

Lineage Maintenance and Update Frequency: notPlanned

Lineage Statement: S4 data were collected at four sites. The equipment used was InterOcean S4 current meter http://www.interoceansystems.com/s4main.htm Measurements were taken every 6 minutes a) South Cleveland Bay BAYS.S4 b) Middle Reef MIDDLERE.S4 c) Dump site (bottom) DUMPBOT.S4 d) Dump site (mid-depth) DUMPMID.S4 Data are stored in one file for each site. The structure of these files is illustrated below. Column 1 contains the date and time of a measurement as a 14 digit numeric string. Column 2 represents the same date and time, but as a decimal day number, where 1.00000 represents midnight of 1 January 1993. Column 3 represents the current speed in m/s. Column 4 represents the current direction (towards which the current flows) in degrees. Column 5 represents the water depth in m. A several points in the file "-999999" appears in all five columns and represents the end of a data set download. Each `break' is followed by the file header. This allows individual data sets to be easily identified. --------------------------------------------- YYYYMMDDhhmmss t m/s deg m --------------------------------------------- 19930211140000 42.58333 0.153 34 12.822 19930211140600 42.58750 0.186 36 12.840 19930211141200 42.59167 0.173 34 12.805 19930211141800 42.59583 0.175 35 12.788 19930211142400 42.60000 0.155 32 12.733 ...................................... 19930228184800 59.78333 0.080 94 5.516 19930228185400 59.78750 0.084 101 5.687 -999999 -999999 -999999 -999999 -999999 --------------------------------------------- YYYYMMDDhhmmss t m/s deg m --------------------------------------------- 19930301184200 60.77917 0.117 39 12.152 19930301184800 60.78333 0.118 37 12.113 19930301185400 60.78750 0.123 36 12.079 ......................................

Notes Credit
Arnstein Prytz

Notes Purpose
The study was to sample water quality during dredging of Cleveland Bay.

Data time period: 1993-01-05 to 1993-04-06

146.96058,-19.16845 146.96058,-19.23096 146.82,-19.23096 146.82,-19.16845 146.96058,-19.16845

146.89029,-19.199705

text: westlimit=146.82; southlimit=-19.23096; eastlimit=146.96057999999999; northlimit=-19.16845