CTD2_s

CTD2 summary data

The was deployed along side the SBECTD 10/06

No pressure sensor was installed ... reporting conductivity instead

Most of the data parameters include valus for the mean and median value as well as the standard deviation of the variable. The table below shows the field name suffix used to differentiate amoung the different values:

Field name Description

_mean The mean value of the variable over the averaging period

_m50 The median value of the variable over the averaging period

_std The standard deviation of the variable over the averaging period

_length The number of valid data points collected over the averaging period

Field name	Description
_mean	The mean value of the variable over the averaging period
_m50	The median value of the variable over the averaging period
_std	The standard deviation of the variable over the averaging period
_length	The number of valid data points collected over the averaging period

Here is the list of field names:

Field name Description Units

Year The year the data were collected n/a

Yday Decimal year day UTC, January 1 at 00:00 is 1.0

MO The month the data was collected UTC

DA The day the data were collected UTC

HH The hour the data were collected UTC

MM The minute the data were collected UTC

SS The second the data were collected UTC

lrec_sbectd Total number of records collected during averaging period n/a

twater_sbectd_mean mean seawater temperature degC

saln_sbectd_mean mean salinity PSU

cond_sbectd_mean mean conductivity S/m

twater_sbectd_median median seawater temperature degC

saln_sbectd_median median salinity PSU

cond_sbectd_median median conductivity S/m

twater_sbectd_length number of records passing RangeCheck Range [-25 35] degC

saln_sbectd_length number of records passing RangeCheck RangeCheck [1 5] S/m or [28 34] PSU

cond_sbectd_length length RangeCheck [1 5] S/m

Field name	Description	Units
Year	The year the data were collected	n/a
Yday	Decimal year day	UTC, January 1 at 00:00 is 1.0
MO	The month the data was collected	UTC
DA	The day the data were collected	UTC
HH	The hour the data were collected	UTC
MM	The minute the data were collected	UTC
SS	The second the data were collected	UTC
lrec_sbectd	Total number of records collected during averaging period	n/a
twater_sbectd_mean	mean seawater temperature	degC
saln_sbectd_mean	mean salinity	PSU
cond_sbectd_mean	mean conductivity	S/m
twater_sbectd_median	median seawater temperature	degC
saln_sbectd_median	median salinity	PSU
cond_sbectd_median	median conductivity	S/m
twater_sbectd_length	number of records passing RangeCheck	Range [-25 35] degC
saln_sbectd_length	number of records passing RangeCheck	RangeCheck [1 5] S/m or [28 34] PSU
cond_sbectd_length	length	RangeCheck [1 5] S/m

* along with range checks, outliers (4*std from the mean) are removed before computing statistics.

SBECTD 3749 deployed 10/10/06 - 04/23/07

Last calibrated: 9 August 2006
internal pump installed
mounted vertically again ... intake at 66" (1.67 m + 0.14m?)
no funnel @ intake with copper screen over mouth
CHANGED Sampling scheme NCYCLES/INTERVAL was 4/2 now 50/60
simultaneously deployed with SBECTD and TRAN1

CTD2 was deployed at same height as SBECTD

SBECTD 3749 deployed 9/1/09 - 10/11/10

internal pump installed

mounted vertically again ... intake at 66" (1.67 m + 0.14m?)

Sampling scheme NCYCLES/INTERVAL is 50/60

SBECTD 4223 deployed 10/11/10 - 5/2/11 (stopped working 4/6/11)

internal pump installed

mounted vertically again ... intake at 66" (1.67 m + 0.14m?)

Sampling scheme NCYCLES/INTERVAL is 50/60

SBECTD 3749 deployed 5/3/11 -

internal pump installed

mounted vertically again ... intake at 66" (1.67 m + 0.14m?)

Sampling scheme NCYCLES/INTERVAL is 50/60

Node turn-around 6/6/2011 but used same CTD

Updated: 5/4/11 jjf