OT-02-03 README Coefficients for Oxygen sensor were incorrect for 1st 5 stations Corrected at station 006 Con files are correct as listed Note for Processing (these parameters were replaced): S/N:017 SOC:0.4355 BOC:0.0000 V Offset:-0.6053 TCOR: 0.0007 PCOR:1.350e-04 6/12/02 11:31 am CDT - PC time converted to GMT 6/12/02 11:31 am CDT - DO sensor cals changed to cals for 430017 Leg 2 SEABIRD 911 Config. Change On 24 June 02 oxygen sensor s/n 0018 was made the primary oxygen sensor. sensor 0017 became the secondary oxygen sensor. The old congig file was 11-15-02.con the new config file is 6-24-02.con. New cal tables loaded to reflex 0018 cal of 18 Mar 02 by SeaBird Electronics Leg 3 Station 196 - Downcast data for primary and secondary sensors flagged as bad, upcast data checked good and was used for this station Station 256 - Data for cast was good until 40 meters, depth should have been 90. Secondary data was also bad, resulting in a partial cast for this station For all other stations, primary sensor data was used. There was a question as to the validity of the SBE 43 Oxygen data since titration values did not match its output in all cases. Further investigation found a problem with the chemicals used for titration. Since the sensor was recently calibrated, we believe the data represented to be correct. HEADER EDITING AND MISCELLANEOUS NOTES - May 18, 2005 The processed data file headers were edited primarily to replace missing water depth data which was not recorded by the CTD operators at a total of 98 stations and to standardize the format. L.N. May, Jr. (1) According to the SEAMAP station card for cruise 250, a hydrocast was conducted at station 114, but the data file is missing. (2) SEAMAP station numbers were corrected at the following stations: 001, 035, 150, 159, 169 (3) NEMA interface box was apparently not functioning during profiles acquired at stations 001 through 099. The latitude and longitude coordinates transcibed by the CTD operators were checked for outliers by comparing the coordinates with corresponding SEAMAP starting and ending coordinates depending whether the hydrocast was conducted before or after the fishing event. The SAS program, PATCH_CTDHDR_CR250_1.SAS, was used to perform the comparisons. There were no apparent problems detected. (4) Only the NEMA time of day was recorded in the header at stations 100 through 155. (5) Beginning at station 156, only the string 'none' was recorded in the NEMA time field. (6) Water depths were not recorded at a total 97 stations during leg 2 and and 1 station during leg 3. The missing data were replaced with SEAMAP starting and ending water depths depending on whether the hydrocast was conducted before or after the fishing event. There was an apparent error in the water depth (25.8 m) recorded at station 110. The depth was replaced with the water depth recorded in the SEAMAP database. The following stations and corresponding replacement water depths (m) are listed below. 018 64.0 020 82.3 021 117.4 025 22.3 026 18.5 029 12.3 030 25.2 035 24.0 036 34.6 037 34.4 038 27.6 039 13.5 040 9.9 041 18.5 047 243.4 048 75.9 049 45.7 050 37.1 051 33.3 052 32.7 055 15.2 057 29.4 058 10.2 060 50.8 061 16.6 062 23.8 063 37.1 067 40.4 068 46.1 070 64.4 072 109.5 078 31.6 080 20.5 081 10.2 082 9.5 084 25.8 085 12.6 086 29.1 087 86.7 088 40.2 092 54.9 093 92.7 094 82.3 095 57.8 096 55.0 098 151.6 099 92.7 100 73.2 101 54.3 104 45.5 105 27.6 106 11.0 107 11.0 108 14.3 109 16.6 110 14.0 111 13.2 112 14.6 113 17.9 114 19.0 115 19.2 116 21.2 118 22.5 119 25.2 120 28.0 121 33.1 122 30.9 123 22.1 124 69.7 125 32.9 126 34.4 127 37.5 129 74.1 130 64.4 131 71.1 132 80.5 133 92.0 135 73.3 136 40.1 138 35.1 139 24.0 140 27.6 141 24.1 142 27.2 143 35.1 144 30.5 145 33.3 146 40.6 147 45.7 148 34.7 149 29.1 150 20.8 151 18.8 152 16.6 153 9.5 154 22.1 155 34.6 214 731.5