Data Repository : MCR LTER: Coral Reef: Water Column: Nearshore Water Profiles, CTD, Primary Production, and Chemistry

Data Object Description

Identifier:

knb-lter-mcr.10.29

Name:

MCR_LTER_timeseries_CTD_downcasts

Description:

CTD data from downcasts at reef stations, averaged over 1m bins. File format is acceptable input for Ocean Data View.

Additional Info:

This data table was designed to be loaded into the Ocean Data View program. The program is avaliable from the publisher at http://odv.awi.de/.

Physical Structure Description:

Object Name:

MCR_LTER_timeseries_CTD_downcasts_20111110.txt

Size:

3.7 Mb

Text Format:

Number of Header Lines:

Record Delimiter:

Attribute Orientation:

column

Simple Delimited:

Field Delimeter:

;

Case Sensitive?

Number Of Records:

18743

Online Distribution Info:
	http://mcr.lternet.edu/data/db/script/database/dbrequest.php?docid=knb-lter-mcr.10&entityindex=1

Coverage Description:

Time Period:

Begin:

2005-08-02

End:

2011-07-24

Attribute(s) Info:

Name

Column Label

Definition

Type of Value

Measurement Type

Measurement Domain

Missing Value Code

Accuracy Report

Accuracy Assessment

Coverage

Method

Cruise

Required by ODV.

string

nominal

Def

any text

Code	99999
Expl	no measurement collected at this point, or not available

Station_code

Station

2-letter code for this station name, corresponding to a Location.

string

nominal

Domain Info

Code	99999
Expl	no measurement collected at this point, or not available

Coverage Info

Type

Equivalent to ODV's Station Type and is required.

string

nominal

Domain Info

Code	99999
Expl	no measurement collected at this point, or not available

Date

mon/day/yr

Date of measurement. Required by ODV, format mm/dd/yyyy.

string

dateTime

Code	99999
Expl	no measurement collected at this point, or not available

Time

hh:mm

Time of measurement, timezone UTC. Required by ODV, format hh:mm, 24 hour.

string

dateTime

Code	99999
Expl	no measurement collected at this point, or not available

Longitude

longitude [degrees_east]

Longitude recorded by the first CTD sample at the station, if available. If not available, then nominal longitude for this location. East is positive. Column required by ODV: all samples which are to be considered at same station must have the same value in this column.

float

ratio

Unit	degree
Precision	0.00001
Type	real
Min	-180
Max	180

Code	99999
Expl	no measurement collected at this point, or not available
Code	NaN
Expl	no output

Latitude

latitude [degrees_north]

Latitude recorded by the first ctd sample at the station, if available. If not available, then nominal latitude for this location. North is positive. Column required by ODV: all samples which are to be considered at same station must have the same value in this column.

float

ratio

Unit	degree
Precision	0.00001
Type	real
Min	-90
Max	90

Code	99999
Expl	no measurement collected at this point, or not available
Code	NaN
Expl	no output

Bottom_Depth

Bot. Depth [m]

Estimated depth to the bottom at this station. Required by ODV.

float

ratio

Unit	meter
Precision	1
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Depth

Depth SW [m]

Depth based on seawater density, averaged for points in this bin. Positive is down.

float

ratio

Unit	meter
Precision	0.001
Type	real
Min	0
Max	1000

Code	99999
Expl	no measurement collected at this point, or not available

Decimal_Year

Decimal Year [yr]

year (yyyy) plus day-time as a fraction of a year, ie, half way thru 2005 = 2005.5

float

ratio

Unit	nominalYear
Precision	0.000000001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Pressure_avg

Pressure [db]

Average seawater pressure.

float

ratio

Unit	decibar
Precision	0.001
Type	real
Min	0
Max	1000

Code	99999
Expl	no measurement collected at this point, or not available

Pressure Bin

Pressure bins [db]

Center of the pressure averaging interval.

float

ratio

Unit	decibar
Precision	0.001
Type	real
Min	0
Max	1000

Code	99999
Expl	no measurement collected at this point, or not available

Temperature

T00 [C]

ITS-90, based on International Temperature Scale of 1990.

float

interval

Unit	celsius
Precision	0.0001
Type	real
Min	0
Max	100

Code	99999
Expl	no measurement collected at this point, or not available

Conductivity

Conductivity [S/m]

Conductivity, from primary sensor.

float

ratio

Unit	siemensPerMeter
Precision	0.0001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Voltage_Channel_0

Voltage channel 0, raw data for diagnostic purposes.

float

ratio

Unit	volt
Precision	0.001
Type	real
Min	0
Max	5

Code	99999
Expl	no measurement collected at this point, or not available

Voltage Channel 1

Voltage channel 1, raw data for diagnostic purposes.

float

ratio

Unit	volt
Precision	0.001
Type	real
Min	0
Max	5

Code	99999
Expl	no measurement collected at this point, or not available

Voltage Channel 2

Voltage channel 2, raw data for diagnostic purposes.

float

ratio

Unit	volt
Precision	0.001
Type	real
Min	0
Max	5

Code	99999
Expl	no measurement collected at this point, or not available

Descent_Rate

Descent Rate [m/s]

Descent rate of the CTD package.

float

ratio

Unit	metersPerSecond
Precision	0.01
Type	real
Min	0
Max	100

Code	99999
Expl	no measurement collected at this point, or not available

Oxygen

Oxygen (ml/l)

Oxygen.

ratio

Unit	milliliterPerLiter
Precision	0.001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Fluor

Fluorometer

Estimated chl contentration from in-situ fluorometer.

float

ratio

Unit	volt
Precision	0.001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Turbidity

Turbidity (upoly 0?)

User supplied polynomial (used for turbidity in this case).

float

ratio

Unit	volt
Precision	0.001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Potential_Temperature

potemp [C]

Temperature after the effects of compression have been removed. Defined as the temperature of a parcel of water at the sea surface after it has been raised adiabatically from some depth in the ocean.

float

interval

Unit	celsius
Precision	0.0001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Salinity

Salinity [PSU]

Salinity calculated according to the "Practical Salinity Scale of 1978".

float

interval

Unit	dimensionless
Precision	0.0001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Density_Anomaly

Sigma-theta

Sigma-theta. Density anomaly calculated with in situ salinity, potential temperature and pressure=0. sigmatheta = density[kg/m3] - 1000kg/m3. (International Equation of State, Joint Panel on Oceanographic Tables and Standards, 1981).

float

interval

Unit	kilogramPerCubicMeter
Precision	0.0001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Specific_Volume_Anomaly

sva

Difference between the in situ specific volume (m3/kg) of a parcel and specific volume at the same pressure with S=35 and T=0[celsius].

float

interval

Unit	cubicMeterPerKilogram
Precision	0.0001
Type	real

Code	99999
Expl	no measurement collected at this point, or not available

Scans_Per_Bin

scans/bin

The number of data lines averaged in this bin.

float

ratio

Unit	number
Precision	1
Type	integer

Code	99999
Expl	no measurement collected at this point, or not available

Location

longStation

long form of station name

string

nominal

Domain Info

Code	99999
Expl	no measurement collected at this point, or not available

Coverage Info