GTSPP Global Temperature Salinity Profile Programme

1. GTSPP Global Temperature Salinity Profile Programme IODE XVII Paris 3-5 March 2003Presented by: Loïc Petit de la Villéon (1) on behalf of the GTSPP Steering Group (1) IFREMER Brest – France

2. GTSPP: Introduction & history • The Global Temperature Salinity Profile Programme is a joint WMO and IOC programme • GTSPP reports to the Joint Commission on oceanography and Marine Meteorology (JCOMM) • 1989: begin of GTSPP development (then called Global Temperature Salinity Pilot Project • 1990: beginning of operations • 1998: GTSPP come from a Pilot project to a permanent programme • presently: GTSPP is a part of GOOS (Global Ocean Observing System) • invited to be a DAC in CLIVAR

3. GTSPP: Rationale • GTSPP was developed as a response to changing needs in the ocean science and marine operational communities • Scientists conducting research into oceanic and atmospheric processes are addressing global issues • Operational community needs more data in operational time frames to support modeling • Various National Weather Prediction(NWP) models and Global Ocean Data Assimilation Experiment (GODAE) are the latest thrusts to assimilate atmospheric and oceanic data into coupled ocean-atmosphere models • As a result of these new needs, a new paradigm for international oceanographic data management is required: GTSPP has and will continue to address the development of that paradigm

4. GTSPP Objectives • To continue to provide a timely and complete data and information of ocean temperatures and salinities. • To continue to improve data capture, data analysis, and exchange systems for temperature and salinity data. • To develop, implement and distribute data flow monitoring systems to improve the capture and timeliness of real time and delayed mode data. • To improve the state of oceanographic temperature and salinity databases by developing and applying improved quality control systems. • To facilitate the development and provision of a wide variety of data and information products, and data sets to research, engineering, and operational clients.

5. GTSPP: participation • There are organizations in 8 member states of IOC and WMO participating actively in GTSPP: Australia, Canada, France, Japan, Germany, United States • It is a goal of GTSPP to increase this participation. The contributions could be as: • Data centres providing data assembly, data management and data system products • Science centres providing scientific QC, science oversight and analysis products • data contributors

6. GTSPP Data Flow

7. GTSPP Real Time Data Flow

8. GTSPP Delayed mode Data Flow

9. GTSPP: Quality control procedures • Assuring a high level of data quality • 2 stages: a) data centres handles initial checking b) Science centres carry out scientific scrutiny • Quality control functions include: • Evaluating the quality of real-time data • Evaluating the quality of delayed mode data • Implement standards (data assessment must be carried out in an equivalent manner everywhere) • Validation and improvements of present practices • Documenting Quality Control procedures

10. GTSPP Duplicates handling • In the effort to acquire as much as possible, the GTSPP has built some redundancies in data acquisition • Duplicates identification includes: • Eliminate multiple, identical copies of data • Identify and manage data that are nearly identical • Identify real-time and delayed mode versions of the same data • Recommend improvements: ie new strategy on tagging must be considered • Define, implement and documents standards

11. GTSPP Continuously Managed DataBase (CMD) • The goal is to provide the highest quality, highest resolution to users as soon as possible after the data are collected • The functions that are fulfilled by the CMD include: • Match delayed mode data to real-time versions • Control versions. • Implement standards • Interact with global archives • Continue to suggest improvements

12. GTSPP Data Flow Monitoring • The monitoring programme is intended to have knowledge of the effectiveness of the programme and to modify aspects that are not performing efficiently

13. GTSPP Data Flow Monitoring BATHY and TESAC records represent an increasingly larger fraction of the total as we move from 1990 to 2002. Courtesy of MEDS( from WOCE DVD)

14. GTSPP Data Flow Monitoring Continuously maintained Quality indicators Time Indicator between observation and dissemination to final users

15. GTSPP: last results • GTSPP has been in charge of the Upper Ocean Thermal (UOT) for the WOCE final data set • GTSPP data set is available on • the WOCE DVD • on line http://data1.gfdl.noaa.gov/WOCE-V3.0/disk1/

16. GTSPP:collaborating with new programs ARGO Courtesy of the Argo Information centre

17. GTSPP: Conclusions • GTSPP has a 12 years experience in collecting and disseminating a world wide data set • GTSPP has background to collaborate efficiently on new programs like GOSUD • GTSPP welcome new participants to join the network • to participate in the project, Member States can write to the IOC Secretariat or to the chairman of the GTSPP project • http://www.gtspp.org

19. Contacts GTSPP: A world wide network of T and S Profile Data Data Centres: Canada: Marine Environmental Data Service Bob Keeley: keeley@meds-sdmm.dfo-mpo.gc.ca France: IFREMER Loic Petit de la Villeon Loic.Petit.De.La.Villeon@ifremer.fr USA: NODC Charles Sun: charles.sun@noaa.gov Global Temperature Salinity Profile Project Providing Global ocean Temperature and Salinity Profile data for Operations and Research Your participation is requested Science Centres: Scripps Institute of Oceanography Warren White: wbwhite@ucsd.edu Atlantic Oceanographic and Meteorological Laboratory Bob Molinari molinari@aoml.noaa.gov Joint Australian Facility for Ocean Observing Systems Lisa Cowen l.cowen@bom.gov.au The GTSPP is an international project which succeeds only through cooperation. We look forward to your taking part in the following tasks: http://www.gtspp.org • increase the near real time T, S data flowing through theGTS. • contribute T and S profile data that have not been distributed on the GTS. • decrease the time between data collection and data distribution. • use the GTSPP experience to manage other ocean data typesco-operativelybetween research, and data centres.

20. GTSPP Objectives Assessing Data Quality GTSPP Data Flow • Provide a timely and complete data and information base of ocean temperature and salinity profile data of known and documented quality. • Improve data capture, analysis, and exchange systems for temperature and salinity profile data by encouraging more participation by IOC member states in GTSPP. • Develop and implement data flow monitoring systems to improve the capture and timeliness of real time and delayed mode data. • Improve the state of databases of oceanographic temperature and salinity profile data by developing and applying improved quality control systems. • Facilitate the development and provision of a wide variety of useful data, analyses, and information products to clients Setting international standards for quality control, all observations are checked by automatic and visual procedures. As a result, the data are left unchanged but a quality flag is added to each measurement. WMO Global Telecommunications System (GTS) carries real-time data. IODE Data Centres contribute data, monitor the project and distribute products. Real-time Data Assembly Centre quality controls real-time data and forwards them to the Continuously Managed Database. Continuously Managed Database maintains the up-to-date global data archive with the highest quality, highest resolution data available at any time. Science Centres perform scientific quality control, issue products and predictions based on the global data set. Check ship tracks Check profiles