year |
Calendar year
|
yyyy |
year |
cruise_id |
Official R2R cruise identification
|
unitless |
cruise_id |
cruise_name |
Alternate cruise name
|
unitless |
cruise_name |
cast |
CTD cast number (integer)
|
unitless |
cast |
lat_start |
Latitude at start of cast
|
decimal degrees |
lat_start |
lon_start |
Longitude at start of cast; east is positive
|
decimal degrees |
lon_start |
press |
Mid-point of pressure bin
|
decibars |
press |
month |
Calendar month
|
mm |
month |
day |
Day of month
|
dd |
day |
time_UTC |
UTC time
|
HHMM |
time_utc |
ISO_DateTime_UTC |
Date and time; ISO 8601:2004(E) format
|
yyyy-mm-ddTHH:MM:SS[.xx] |
ISO_DateTime_UTC |
julian_day |
Numeric time in Julian day for year in UTC time base
|
unitless |
julian_day |
lat |
Latitude geographic coordinate from ship
|
decimal degrees |
lat |
lon |
Longitude geographic coordinate from ship. Minus indicates western hemisphere
|
decimal degrees |
lon |
temp |
Water temperature from primary temp sensor
|
degrees Celsius |
temp |
cond |
Conductivity from primary sensor
|
Siemens per meter |
cond |
sal |
Salinity
|
PSU |
sal |
density |
Density
|
kilograms per cubic meter |
density |
flvolt |
A/D voltage 0 = Fluorescence voltage from ECO-FLNTU sensor
|
volts |
flvolt |
trans_v |
A/D voltage 4 = CStar transmissometer
|
volts |
trans_v |
alt |
Altimeter distance to seabed. NaN values are readings that were flagged suspected bad values in post-processing step
|
meters |
altitude |
O2_mg_L |
Dissolved oxygen concentration
|
milligrams per liter |
O2_mg_L |
O2sat |
Percent dissolved oxygen saturation
|
percent |
O2_sat_pcnt |
turbidity |
Nephelometric Turbidity Units (NTU) from ECO-FLNTU sensor
|
NTU |
turbidity |
TSS |
Total Suspended Solids (TSS) from calibration of collected water samples analyzed in the lab for TSS and NTU from ECO-FLNTU sensor
|
milligrams per liter |
no_bcodmo_term |
fluor |
Fluorescence units from ECO-FLNTU sensor
|
micrograms per liter |
fluor |
chl_a |
Chlorophyll-a from calibration of fluorescence to analysis of water samples for chla
|
micrograms per liter |
chl_a |
flag |
Data flag from SeaBird Data Processing Software(0 = good)
|
unitless |
flag |