Seawater conductivity refers to the ability of seawater to conduct electricity. The presence of ions in the seawater, such as salt, increases the electrical conducting ability of seawater. As such, conductivity can be used as a proxy for determining the quantity of salt in a sample of seawater. This is the unprocessed data that are output directly from the sensor which are then converted to salinity in S m-1.
coordinates :
time lat lon depth
data_product_identifier :
CONDWAT_L0
long_name :
Seawater Conductivity Measurement
precision :
0
units :
counts
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
ctd_tc_oxygen
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
ancillary_variables :
oxygen
comment :
Dissolved Oxygen (DO) Concentration from the Stable Response Dissolved Oxygen Instrument is a measure of the concentration of gaseous oxygen mixed in seawater.
Seawater conductivity refers to the ability of seawater to conduct electricity. The presence of ions in the seawater, such as salt, increases the electrical conducting ability of seawater. As such, conductivity can be used as a proxy for determining the quantity of salt in a sample of seawater.
coordinates :
time lat lon depth
data_product_identifier :
CONDWAT_L1
long_name :
Seawater Conductivity
precision :
6
standard_name :
sea_water_electrical_conductivity
units :
S m-1
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
ctdbp_no_seawater_conductivity_qartod_results
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Summary QARTOD test flags. For each datum, the flag is set to the most significant result of all QARTOD tests run for that datum.
Seawater Pressure refers to the pressure exerted on a sensor in situ by the weight of the column of seawater above it. It is calculated by subtracting one standard atmosphere from the absolute pressure at the sensor to remove the weight of the atmosphere on top of the water column. The pressure at a sensor in situ provides a metric of the depth of that sensor.
coordinates :
time lat lon depth
data_product_identifier :
PRESWAT_L1
long_name :
Seawater Pressure
precision :
3
standard_name :
sea_water_pressure
units :
dbar
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
ctdbp_no_seawater_pressure_qartod_results
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Summary QARTOD test flags. For each datum, the flag is set to the most significant result of all QARTOD tests run for that datum.
Seawater Density is defined as mass per unit volume and is calculated from the conductivity, temperature and depth of a seawater sample using the TEOS-10 equation.
coordinates :
time lat lon depth
data_product_identifier :
DENSITY_L2
long_name :
Seawater Density
precision :
3
standard_name :
sea_water_density
units :
kg m-3
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
density_qc_executed
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
coordinates :
time lat lon depth
long_name :
QC Checks Executed
Array
Chunk
Bytes
202.23 MB
1.94 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
uint8
numpy.ndarray
density_qc_results
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
coordinates :
time lat lon depth
long_name :
QC Checks Results
Array
Chunk
Bytes
202.23 MB
1.94 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
uint8
numpy.ndarray
deployment
(time)
int32
dask.array<chunksize=(1936658,), meta=np.ndarray>
long_name :
Deployment Number
name :
deployment
Array
Chunk
Bytes
808.91 MB
7.75 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
int32
numpy.ndarray
depth
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
ancillary_variables :
ctdbp_no_seawater_pressure
axis :
Z
comment :
Depth (m) calculated from pressure (dbar) and latitude.
long_name :
Depth calculated from pressure
precision :
3
units :
m
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
dissolved_oxygen
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
ancillary_variables :
ctd_tc_oxygen practical_salinity pressure temperature
comment :
Dissolved Oxygen Concentration from the Stable Response Dissolved Oxygen Instrument is a measure of the concentration of gaseous oxygen mixed in seawater. This data product is corrected for salinity, temperature, and depth.
coordinates :
time lat lon depth
data_product_identifier :
DOXYGEN_L2
long_name :
DO - Pressure Temp Sal Corrected
precision :
4
standard_name :
moles_of_oxygen_per_unit_mass_in_sea_water
units :
µmol kg-1
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
dissolved_oxygen_qc_executed
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
coordinates :
time lat lon depth
long_name :
QC Checks Executed
Array
Chunk
Bytes
202.23 MB
1.94 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
uint8
numpy.ndarray
dissolved_oxygen_qc_results
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
coordinates :
time lat lon depth
long_name :
QC Checks Results
Array
Chunk
Bytes
202.23 MB
1.94 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
uint8
numpy.ndarray
driver_timestamp
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Driver timestamp, UTC
long_name :
Driver Timestamp, UTC
units :
seconds since 1900-01-01
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
ingestion_timestamp
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
The NTP Timestamp for when the granule was ingested
long_name :
Ingestion Timestamp, UTC
units :
seconds since 1900-01-01
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
internal_timestamp
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Internal timestamp, UTC
long_name :
Internal Timestamp, UTC
units :
seconds since 1900-01-01
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
oxy_calphase
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
coordinates :
time lat lon depth
long_name :
Calibrated Phase
precision :
0
units :
counts
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
oxy_temp
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
coordinates :
time lat lon depth
long_name :
DOSTA Temperature
precision :
0
units :
counts
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
oxygen
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Dissolved Oxygen (DO) unprocessed measurement from the Stable Response Dissolved Oxygen Instrument.
coordinates :
time lat lon depth
data_product_identifier :
DOCONCS-CNT_L0
long_name :
DO Measurement
precision :
0
units :
counts
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
port_timestamp
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Port timestamp, UTC
long_name :
Port Timestamp, UTC
units :
seconds since 1900-01-01
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
practical_salinity
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
ancillary_variables :
practical_salinity_qartod_results practical_salinity_qartod_executed pressure conductivity temperature
comment :
Salinity is generally defined as the concentration of dissolved salt in a parcel of seawater. Practical Salinity is a more specific unitless quantity calculated from the conductivity of seawater and adjusted for temperature and pressure. It is approximately equivalent to Absolute Salinity (the mass fraction of dissolved salt in seawater) but they are not interchangeable.
coordinates :
time lat lon depth
data_product_identifier :
PRACSAL_L2
long_name :
Practical Salinity
precision :
4
standard_name :
sea_water_practical_salinity
units :
1
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
practical_salinity_qartod_results
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Summary QARTOD test flags. For each datum, the flag is set to the most significant result of all QARTOD tests run for that datum.
Seawater Pressure refers to the pressure exerted on a sensor in situ by the weight of the column of seawater above it. It is calculated by subtracting one standard atmosphere from the absolute pressure at the sensor to remove the weight of the atmosphere on top of the water column. The pressure at a sensor in situ provides a metric of the depth of that sensor. This is the unprocessed data that are output directly from the sensor which are then converted to pressure in dbar.
coordinates :
time lat lon depth
data_product_identifier :
PRESWAT_L0
long_name :
Seawater Pressure Measurement
precision :
0
units :
counts
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
pressure_temp
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Seawater Pressure refers to the pressure exerted on a sensor in situ by the weight of the column of seawater above it. It is calculated by subtracting one standard atmosphere from the absolute pressure at the sensor to remove the weight of the atmosphere on top of the water column. The pressure at a sensor in situ provides a metric of the depth of that sensor. This is the unprocessed data that are output directly from the sensor which are then converted to pressure in dbar.
coordinates :
time lat lon depth
long_name :
Seawater Pressure Measurement
precision :
0
units :
counts
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
seawater_temperature
(time)
float64
dask.array<chunksize=(1936658,), meta=np.ndarray>
ancillary_variables :
seawater_temperature_qartod_results seawater_temperature_qartod_executed temperature
comment :
Seawater temperature near the sensor.
coordinates :
time lat lon depth
data_product_identifier :
TEMPWAT_L1
long_name :
Seawater Temperature
precision :
4
standard_name :
sea_water_temperature
units :
degree_C
Array
Chunk
Bytes
1.62 GB
15.49 MB
Shape
(202228190,)
(1936658,)
Count
106 Tasks
105 Chunks
Type
float64
numpy.ndarray
seawater_temperature_qartod_results
(time)
uint8
dask.array<chunksize=(1936658,), meta=np.ndarray>
comment :
Summary QARTOD test flags. For each datum, the flag is set to the most significant result of all QARTOD tests run for that datum.