Parameter: sigma-theta potential density (deprecated)

Use Instead:

sigma-theta

Short Description:

sigma-theta potential density

Short Name:

sigma_theta

Official Name:

sigma_theta

Units:

kilograms per meter cubed - 1000

Graphable:

Yes

No Data Value:

External Identifier:

» rdfs:seeAlso http://vocab.nerc.ac.uk/collection/P01/current/SIGTPR01

Description

sigma_theta density. [The density calculated with in situ salinity, potential temperature, and pressure = 0, minus 1000 kg/m3. If a pressure reference level other than the surface is used, it will be indicated by using the reference level as the subscript for sigma. When comparing the density of water samples from different depths, it is preferable to use sigma-theta. - added 11/15/2013, njc from the Naval Postgraduate School, http://www.oc.nps.edu/nom/day1/parta.html]

Datasets associated with this parameter

Dataset Name	Brief Description	Project	PI-Supplied Parameter Name
AE1910 CTD Bottles		Zooplankton Diel Rhythm	Sigma_e00_avg, Sigma_e00_stdev
AE1910 CTD Profiles	CTD profiles from R/V Atlantic Explorer cruise AE1910 during May 2019	Zooplankton Diel Rhythm	Sigma_e00
Bottle chemistry data from AT37-12		vent O2 NO3 roles	SIGMA0
Cariaco Meta-Omics Cruises CTD data	CTD profiles collected in support of molecular samples.	CariacoMetaOmics	sigma_0
Chemistry - October 2007	Chemistry - October 2007	Anammox Black Sea	Sigma_Theta
CTD	CTD data	ATP3	Sigma_theta_1, Sigma_theta_2
CTD - Bottle	CTD - Bottle	GoMX - NGOMEX	Sigma_e00
CTD - Bottle - AN10	CTD Averaged Bottle Data	ANACONDAS	Sigma_theta, Avg_Sigma_theta
CTD - Bottle Summary	CTD - Bottle Summary	GATEKEEPERS	Sigma_e00
CTD - Hydro Nutrients - EN496	CTD Hydro Nutrients Data - EN496	GoMX - N2 Fixation	Sigma_t00, Sigma_t11
CTD - Hydro Nutrients - EN509	CTD Hydro Nutrients Data - EN509	GoMX - N2 Fixation	Sigma_t00, Sigma_t11
CTD - Hydro Nutrients - OC468-02	CTD Hydro Nutrients Data - OC468-02	GoMX - N2 Fixation	Sigma_E00_a, Sigma_E00_a_SD, Sigma_E11_a, Sigma_E11_a_SD, Sigma_E00, Sigma_E11
CTD - Profiles	CTD Profile Data	Northern Gulf of Alaska Phytoplankton	sigma_e00, sigma_e11
CTD - Profiles	CTD - Profiles	GATEKEEPERS	sigma_e00
CTD - Profiles - AN10	CTD Profile Data	ANACONDAS	Sigma_theta
CTD - Profiles - EN496	CTD profile data - EN496	GoMX - N2 Fixation	Sigma_E00
CTD - Profiles - EN509	CTD profile data - EN509	GoMX - N2 Fixation	Sigma_E11, Sigma_E00
CTD - Profiles - ISL0109	CTD - Profiles - ISL0109	SIRENA	sigma_e00
CTD - Profiles - OC468-02	CTD profile data - OC468-02	GoMX - N2 Fixation	Sigma_e00, Sigma_e11, Sigma_e00_Bin, Sigma_e11_Bin
CTD bottle data	CTD bottle data	Diatom Group Si Prod	Density0, Density1, Density0_sd, Density1_sd
CTD Bottle Data - MV1101	CTD Bottle Data - MV1101	Great Calcite Belt	Sigma_e00_avg, Sigma_e00_sdev, Sigma_e11_avg, Sigma_e11_sdev
CTD Bottle Data - RR1202	CTD Bottle Data - RR1202	Great Calcite Belt	sigma_e00_avg, sigma_e11_avg
CTD data - Eastern Tropical Pacific	CTD data from the Eastern Tropical Pacific	ETP	sigma_e00, sigma_e11
CTD Down Casts - MV1101	CTD Down Casts - MV1101	Great Calcite Belt	sigma_e00, sigma_e11
CTD Hydrography	Basic CTD data collected during SAV cruises 2015-2017	B12 Impacts on DMSP	Sigma_theta
CTD Individual Profiles	CARIACO time series individual CTD profiles	CARIACO	sigma_e00
CTD profiles	CTD pressure, temperature, salinity profiles	EDDIES	sigma_S, sigma_0_S
CTD profiles	CTD profiles	Diatom Group Si Prod	Density0, Density1
CTD Profiles - Upcasts - CH0212	CTD Profiles - Upcasts - CH0212	OMZ_Sulfur_Cycling	Density_sigma_theta
CTD Profiles - Upcasts - ETNP	CTD Profiles - Upcasts - ETNP	OMZ_Sulfur_Cycling	Density_sigma_theta
CTD Profiles - Upcasts - PE16-01	CTD Profiles - Upcasts - PE16-01	OMZ_Sulfur_Cycling	Density_sigma_theta
CTD profiles near the ALOHA observatory and South Pacific Gyre	CTD profiles around the ALOHA observatory, HI and South Pacific Gyre	Hg_Biogeochemistry, SuspendSinkPart	sigma_e00
CTD sensor	CTD sensor data from two cruises	BSUCS	SigTheta1, SigTheta2, Density
Diatom silica productivity rates	Silica production rates and concentrations quantified using 32Si and PDMPO	Diatom Group Si Prod	Density1, Density0
Discrete O2 Ar	Discrete O2 Ar	SO_GasEx	sigma_theta
Doliolid diet: CTD casts	CTD data from SAV-15-10, SAV-15-19, SAV-15-31	Doliolid Diet	Density_sigma_theta_kg_m3
ETSP 2013 NO3 NO2 N2O	Nitrate, nitrite, and nitrous oxide isotope measurements from the Eastern Tropical South Pacific ocean (NBP13-05)	N2O Cycling	SIGMA_THETA
Fukushima Radionuclide Iodine 129 levels	129I of total dissolved inorganic iodine	Fukushima Radionuclide Levels	sigma_t0
Global Noble Gases	Noble gas and N2/Ar (with associated CTD) data from 93 different cruises spanning the globe	Measuring Diapycnal Mixing, NAT He and Tritium, Tracers of Bio Prod and Gas Exchange, OP3, C Pump in Subtropical N Pacific, Net Bio O2 Prod JGOFS, Gas Tracers O2 Prod Subtropical Pacific, N2:Ar Deep Tracer, EPZT Noble Gases He Tritium, CarboMODE, Weddell Sea Tracers	sigma_theta
GP16 CFC Sat	CFC Sat	U.S. GEOTRACES EPZT	theta
GP16 CTD - GT-C Shipboard SBE-Processed Files	CTD - GT-C Shipboard SBE-Processed Files	U.S. GEOTRACES EPZT	Sigma_e00, Sigma_e11
Gulf of Mexico NO3 isotopes		SW Pac N2 fixation	SigmaTheta
IEP February and May 2017	Nutrient and nitrate isotope data from the southern Benguela upwelling system from February to August 2017	SBUS Hypoxia	Sigma_theta
Kinetics of Silicon uptake	Total silicic acid, gross silica production, and biomass-normalized measurements	Diatom Group Si Prod	Density0, Density1
KM1314 bottle	Bottle data from cruise KM1314, Aug. 8 - Sept. 4, 2013 in the northern Pacific	Nitrification and Marine Planktonic Biodiversity	sigma_theta, sigma_theta_2
KM1314 CTD	CTD data from cruise KM1314, Aug. 8 - Sept. 4, 2013 in the northern Pacific	Nitrification and Marine Planktonic Biodiversity	sigma_theta_2, sigma_theta
LabSea_Hamme et al 2017	Noble gas and N2/Ar	N2:Ar Deep Tracer	sigma_theta
McMurdo Sound CTDs	CTD casts in McMurdo Sound	McMurdo Predator Prey	sigma_theta
MOC_CTD_RedSea	MOCNESS CTD data from RV/Thuwal, Red Sea, Jan. 2014	Red Sea Krill	sigma
N2 excess and N species isotopic composition	Vertical profiles from the Mexican OMZ of N2 gas concentrations in excess of equilibrium values along with the isotopic composition of total N2, NO3- and NO2-	OMZ Biogeochemistry Floats	sigma_theta
N2 Gas Excess	N2 gas concentration in excess of saturation determined by N2:Ar ratiometry	US GEOTRACES Arctic Nitrogen Flux	Sigma_Theta
NH1417 NEMO CTD	CTD profile downcasts	PhytoNsubResponse	density, density2
nitrate plus nitrite	Nitrate + nitrite concentration and d15N from the Eastern Tropical South Pacific, 2010-2011	Microbial Nitrification, N2 fixation ETSP	sigma_theta
nutrients metals and ctd	Analysis of nutrients, Cobalt (total and labile), dissolved Iron, and dissolved Manganese from TM bottle samples.	CoFeMUG	sigma_e00
OUTPACE - water column nitrate+nitrite	Water column nitrate+nitrite d15N measurements	SW Pac N2 fixation	Sigma_theta
ProteOMZ nutrient, CTD, and oxygen data	R/V Falkor 160115 McLane log from the ProteOMZ expedition in the Central Pacific.	ProteOMZ (Proteomics in an Oxygen Minimum Zone)	ctd_sigmatheta2, tmrd_sigmatheta, tmru_sigmatheta
Rosette Samples - HRS1314	CTD data and analyses of bottles from CTD rosette samples in 2013	Soluble ManganeseIII	sigma_t
South Pacific Nitrate Isotopes	Nitrate and Oxygen isotope measurements from CLIVAR line P16S in 2005	CAREER	pot_density
SPOT environmental data	Environmental measurements from ARISA samples, San Pedro Channel, 5 depths	Bacterial, Archaeal, and Protistan Biodiversity, Marine Viral Dynamics	sigma_theta
TN327 Axial 2015 CTD Bottle Data		NeMO2015	Sigma_theta
Tropical Pacific nitrate nitrogen and oxygen isotopes	Tropical Pacific nitrate N and O isotopes	Diatom-bound_N_Isotopes, CAREER	potential_density
Underway pCO2 and dissolved oxygen concentrations and fluxes	Underway pCO2 and dissolved oxygen concentrations and fluxes	ASPIRE	sigma_theta
YellowFin CTD Data	YellowFin CTD Data	SoCalPlumeEx2012	DensityA

Programs associated with this parameter

None

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Parameter: sigma-theta potential density (deprecated)