GTSPP

Global Temperature and Salinity Profile Project

http://www.nodc.noaa.gov/GTSPP/

“A cooperative international program designed to develop and maintain a global ocean T-S resource with data that are as up-to-date and of the highest quality as possible.”

“The primary goal of the GTSPP is to make these data quickly and easily accessible to users. ”

GTSPP PARTNERSMEDS: Canada / Marine Environmental Data Service Real-Time data assembly, QC, Duplicate management

NODC: NOAA / National Oceanographic Data Center Continuously managed database Delayed mode data QC Data Matching (Real-time / Delayed / Best Copy) Data available as monthly files (Web Database Access soon)

AOML: NOAA / Atlantic Oceanographic & Meteorological Laboratory Scientific QC, Atlantic Ocean

SIO: Scripps Institution of Oceanography Scientific QC, Pacific Ocean (In the future at IPRC/APDRC)

CSIRO: Australia / Commonwealth Scientific, Industrial and Research Organization Scientific QC, Indian Ocean

IFREMER: France / Institut français de recherche pour l'exploitation de la mer) TOGA Data QC

GTSPP QC METADATA

1. Quality Flags Position, Date-time, Record (whole record) Surface Parameter, Surface Code (each group) Depth/Pressure, Profile Parameter (each level)

2. History groups Up to 99 per station

3. Surface codes (Automated Tests) MEDS: QCP$, QCF$ NODC: QNP$, QNF$, QTE#, QPS# SIO: QSP$, QSF$

GTSPP QC FLAG FIELDS

STATION RECORD QUALITY FLAGS Q_Pos Station Position Quality Q_Date_Time Date-Time Quality Q_Record Worst Quality flag in the station

PARAMETER GROUP (EACH LEVEL) Depres_Q Depth/Pressure quality Prof_Q_Parm Data Quality

SURFACE GROUP QUALITY FLAGS Q_Parm Surface Parameter Quality SRFC_Q_Parm Surface Code Quality

GTSPP QC FLAG VALUES

DATA QUALITY CODES (IGOSS)

0 - no quality control (QC) was performed on this element

1 - QC was performed; element appears to be correct

2 - QC was performed; element appears inconsistent with other elements.

3 - QC was performed; element appears to be doubtful

4 - QC was performed; element appears to be erroneous

5 - the value was changed as a result of QC

6 - 8 - reserved for future use

9 - the value of this element is missing

GTSPP HISTORY GROUPS

FIELD CHAR DEFINITION----------------- ---- ---------------------------------------------------------Ident_Code 02 Organization that created history

PRC_Code 04 Computer program

Version 04 Version of program

PRC_Date 08 Date of action (YYYYMMDD)

Act_Code 02 Action performed on parameter

Act_Parm 04 Parameter code of changed parameter

Aux_ID 08 Locator (e.g. depth) of parameter

Previous_Val 10 Value of parameter before change

42 Total Character Length of History Group

GTSPP QC Act_Codes (1)

NODC CF Change a quality flag ED Edit a parameter value FB Flag to the Bottom FR Flag Range QC Quality Control

IFREMER DA Delete Top of a profile DB Delete Bottom of a profile DL Delete interval in a profile ED Edit a parameter value QC Quality Control

MEDS CF Change a quality flag CV Change value FB Flag to the Bottom FR Flag Range QC Quality Control S4 Whole profile flagged.

GTSPP QC Act_Codes (2)

SIO CF Change a quality flag CT Constant temperature FS Fine structure error ML Mixed layer error NG No good trace OE Other error (SIO Code) QC Quality Control SF Surface feature error TG Temp gradient error TI Temp inversion error TO Temp/depth offset UR Under resolved

AOML CF Change a quality flag CT Constant temperature FS Fine structure error ML Mixed layer error NG No good trace QC Quality Control SF Surface feature error TG Temp gradient error TI Temp inversion error TO Temp/depth offset UR Under resolved

GTSPP QC Act_Codes (3)

CSIRO

BB Bad Bottle data BD Bathy data which is rejected CL Contact Lost CS Surface Spike CT Constant temperature DE Depth Error, CSIRO Code DP Duplicate Drop, CSIRO Code DR Driver Error, Sippican MK-9 DU Duplicate Drop, CSIRO Code EF Eddy / Front / Current ER Early Recording error FS Fine structure error, PET fault GL Gradient Long (inversion) GS Gradient Short (spike) HB Hit Bottom HF High Frequency Interference IP Input record history group IV Inversion Confirmed LE Leakage, appears as "jitter" MB MBT data rejected, CSIRO Code MS Meso-scale feature, CSIRO Code

NG No good trace NT No Trace NU Inversion Confirmed (nub) PE Position error Corrected PF Pet (PROTECNO) Fault PI Probable Inversion PS Fine Structure (Step-Like) QC Quality Control RE Repeat Drop SA Surface Anomaly SF Surface feature error SP Spike ST Fine Structure (Step-Like) TA Temperature anomaly accepted TD Temperature Difference TE Time error corrected if possible. TG Temperature gradient error TI Temperature inversion error TO Temperature/depth offset TP Test Probe UR Under resolved WB Wire Break WS Wire Stretch

GTSPP SURFACE CODES

Surface Codes with Hexadecimal QC Codes:

MEDS (IG05 = MEDS profile QC software) QCP$ 41E1FFDF 0 QCF$ 00000000 0

NODC (qcPr = NODC GTSPP QC Profiles software) QNP$ 0021735e 0 QNF$ 00000000 0

NODC (qced = NODC qc editor) QNP$ 0002F9775E 0 QTE# 0000000000 0 QPS# 0000000000 0

SIO (SIPP = SIO Editing Post-Processing software) QSP$ 000000003F 0 QSF$ 0000000000 0

GTSPP / SIO TESTS

SIO QSF$ 0000000000 0 QSP$ 000000003F 0

Binary digits (L to R) = MTLSQ M = Marginal Seas test (0 = No Marginal Seas) T = Too many depth levels (> 1499) (0 = ok) L = Levitus climatology test of SST (0 = ok) S = is the first level within 50 M of surface (0 = yes) Q = is the profile quality flag for the station as received less than 3 (0 = yes)

GTSPP / QC TESTS (1)

AUTOMATED TESTS AT MEDS AND NODC

Stage 1: Location and Identification Tests1.1 Platform Identification1.2 Impossible Date/Time1.3 Impossible Position1.4 Position on Land1.5 Impossible Speed1.6 Impossible Sounding

GTSPP / QC TESTS (2)

Stage 2: Profile Tests2.1 Global Impossible Parameter Values2.2 Regional Impossible Parameter Values2.3 Increasing Depth2.4 Global Profile Envelope2.5 Constant Profile2.6 Freezing Point2.7 Spike2.8 Top and Bottom Spike2.9 Gradient2.10 Density Inversion2.11 Bottom2.12 Temperature Inversion

GTSPP / QC TESTS (3)

Stage 3: Climatology Tests3.1 Levitus Seasonal Statistics3.2 Emery and Dewar Climatology3.3 Asheville Climatology3.4 Levitus Monthly Climatology3.5 Levitus Annual Climatology

Stage 4: Profile Consistency Tests4.1 Waterfall

Stage 5: Visual Inspection5.1 Cruise Track5.2 Profiles

QCED MAIN WINDOW

QCED CRUISE TRACK

QCED WATERFALL

QCED PROFILE

QCED TIME/POSITION EDIT

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