1. Final General Assembly – Paris, France – September 19, 2014 FP7-Infra-2011-2.1.1 : Design studies for European Research Infrastrutures 1st October 2011 – 31st December 2014 Duration 39 months – Periods : 2 (month 18 – month 39) Grant Agreement No: 284321 ; Total budget : 3,5 M€ http://www.groom-fp7.eu 19 partners from cy, de, fr, gr, it, no, es, uk "Gliders for Research, Ocean Observation and Management" General Assembly

2. Final General Assembly – Paris, France – September 19, 2014 WP 4 Targeted Experiments WP leader Karen Heywood (UEA) presented by Jan Kaiser (UEA) Contributors UPMC, SAMS, NERC, FMI, UEA, IFM-GEOMAR, PLOCAN, UIB, AWI, UCY, NURC, OGS, CNRS, CSIC, HCMR

3. Final General Assembly – Paris, France – September 19, 2014 WP1 Project S/T Coordination WP1 Project S/T Coordination WP4 Targeted Experiments WP4 Targeted Experiments WP5 Observatory Infrastructure WP5 Observatory Infrastructure WP3 Scientific Innovation WP3 Scientific Innovation WP2 Integration in the GOOS WP2 Integration in the GOOS WP2.1 Assessment of a glider component in the GOOS WP2.2 Legal framework WP2.3 Financial framework WP3.3 Capacity building and training, outreach WP3.2 Data flow and processing WP3.1 New contributions of glider for marine research WP4.2 Fleet missions WP4.1 Endurance lines WP5.3 Mission planning and analysis WP5.2 Glider payload assessment WP5.1 Ground segment description WP1.1 Project coordination WP5.4 Estimated setup and running costs WP1.2 Internal & external communication WP4.3 Synergies with other platforms WP6 Project Management WP6 Project Management

4. Final General Assembly – Paris, France – September 19, 2014 WP4 Targeted Experiments Targeted deployments of gliders to assess glider capability in the context of GROOM Deployments in challenging environments contribute to other WP assessments We undertake in situ tests of protocols and data management developed in other WP

5. Final General Assembly – Paris, France – September 19, 2014 WP 4 Targeted Experiments Task 4.1: Endurance lines (includes trials of glider capability to do long-lasting repeat sections or virtual moorings) Task 4.2: Fleet missions (includes deployments to assess challenges of operating multiple gliders and optimising survey design) Task 4.3: Synergies with other platforms (includes experiments to assess how gliders can complement floats, moorings, VOS etc)

6. Final General Assembly – Paris, France – September 19, 2014 WP1 Project S/T Coordination WP1 Project S/T Coordination WP4 Targeted Experiments WP4 Targeted Experiments WP5 Observatory Infrastructure WP5 Observatory Infrastructure WP3 Scientific Innovation WP3 Scientific Innovation WP2 Integration in the GOOS WP2 Integration in the GOOS WP2.1 Assessment of a glider component in the GOOS WP2.2 Legal framework WP2.3 Financial framework WP3.3 Capacity building and training, outreach WP3.2 Data flow and processing WP3.1 New contributions of glider for marine research WP4.2 Fleet missions WP4.1 Endurance lines WP5.3 Mission planning and analysis WP5.2 Glider payload assessment WP5.1 Ground segment description WP1.1 Project coordination WP5.4 Estimated setup and running costs WP1.2 Internal & external communication WP4.3 Synergies with other platforms WP6 Project Management WP6 Project Management

7. Final General Assembly – Paris, France – September 19, 2014 Task 4.1: Endurance lines (includes trials of glider capability to do long-lasting repeat sections or virtual moorings) responsible person: Laurent Beguery, CNRS contributors: UPMC, SAMS, NERC, FMI, UEA, IFM-GEOMAR, UIB, AWI, UCY plan, execute and review trials of glider capability to undertake long-lasting repeat sections and to maintain virtual moorings. include challenging marine environments, to lay foundations for using gliders in the ocean observing system.

8. Final General Assembly – Paris, France – September 19, 2014 D4.1 Assess how existing hydrographic endurance line can be supported by glider infrastructure [complete; lead: David Smeed] D4.2[new] Undertaking and assessing glider deployments as components of GOOS according to GROOM standards [in progress; lead: Johannes Karstensen] formerly: D4.2 Deployments of European gliders in ROOSes that conform to GROOM standards D4.3 Endurance line test considering GROOM standards (gliderport, sensor calibration, data delivery, RTQC input) D4.7 Test and analysis of glider/float/mooring missions for GROOM standards Deliverables of Task 4.1

9. Final General Assembly – Paris, France – September 19, 2014

10. WP 4.1 / D4.1 The role of gliders in sustained observations of the ocean David Smeed (NOC), presented by Jan Kaiser (UEA)

11. Final General Assembly – Paris, France – September 19, 2014 Sustained ocean observations Motivation Opportunities and challenges for glider technology Examples of sustained observations from gliders Conclusions

12. Final General Assembly – Paris, France – September 19, 2014 Motivation CLIVAR program: "Maintain over many decades a sustained ocean observing system capable of detecting and documenting global climate change". Long-term perspective for climate research Long-term monitoring is a fundamental requirement of the European Union (EU) Marine Strategy Framework Directive (MSFD).

13. Final General Assembly – Paris, France – September 19, 2014 Sustained sub-surface observations Repeat sections, either hydrographic sections by research vessels; XBT sections from vessels of opportunity Fixed observatory sites – e.g. hydrographic data at Ocean Weather Ship Station (OWS) Mike in the Norwegian Sea since 1948. ARGO network of profiling floats

14. Final General Assembly – Paris, France – September 19, 2014 GO-SHIP reference sections

15. Final General Assembly – Paris, France – September 19, 2014 EuroSITES fixed point observatories

16. Final General Assembly – Paris, France – September 19, 2014 The ARGO programme

17. Final General Assembly – Paris, France – September 19, 2014 Opportunities and challenges for glider technology growing range of oceanographic sensors Argo profiling floats cannot sample at specific locations and little data is obtained on the continental slope GROOM partners have tested the capability of gliders to make sustained observations.

18. Final General Assembly – Paris, France – September 19, 2014 To provide more frequent sampling than is possible with available ship-time or budget. To obtain data with higher spatial resolution. To obtain data in real-time for data assimilation and for increased data security. Why use gliders?

19. Final General Assembly – Paris, France – September 19, 2014 11 projects run by GROOM partners in which gliders were trialed or are regularly used for sustained observations. In some cases, glider have replaced other platforms or enabled new programs to start But there are some cases where gliders were found to not yet be suitable or cost effective. Sustained observations by gliders in GROOM

20. Final General Assembly – Paris, France – September 19, 2014 Advantages –more frequent sampling per ship-time and budget –higher spatial resolution. –real-time data for assimilation and more data security Disadvantages –navigation in strong currents difficult –reliability –additional resources required –risks of collision with vessels Conclusions from GROOM missions

21. Final General Assembly – Paris, France – September 19, 2014 ships observations were biased to the summer months (see plot below) now: 3 years of quasi- continuous glider observations Example 1: The Balearic Channels in the western Mediterranean

22. Final General Assembly – Paris, France – September 19, 2014 RAPID requires continuous data, and the reliability of gliders was not sufficient to replace the moorings. Gliders effective for measuring near surface / very difficult with moored instruments Example 2: RAPID project at 26° N

23. Final General Assembly – Paris, France – September 19, 2014 The use of gliders is most successful when gliders can completely replace other platforms (e.g. Balearic Channel) there is easy access to deployment and recovery sites close to shore (e.g. Balearic Channel) it is only required to sample the upper 1000 m (e.g. shallow thermocline in the Mediterranean Sea; Ruiz et al., 2012). Conclusions 1

24. Final General Assembly – Paris, France – September 19, 2014 Types of sustained observation for which gliders are particularly well suited: real-time data thanks to glider data telemetry continental slope where Argo data are rare near surface where moored instruments are difficult to use Conclusions 2

25. Final General Assembly – Paris, France – September 19, 2014 Future needs include improved reliability (cf. APEX floats) increased depth capability (but: implies reduced repeat sampling frequency) increased endurance to make larger parts of the ocean accessible from individual glider ports Conclusions 3

26. Final General Assembly – Paris, France – September 19, 2014 WP1 Project S/T Coordination WP1 Project S/T Coordination WP4 Targeted Experiments WP4 Targeted Experiments WP5 Observatory Infrastructure WP5 Observatory Infrastructure WP3 Scientific Innovation WP3 Scientific Innovation WP2 Integration in the GOOS WP2 Integration in the GOOS WP2.1 Assessment of a glider component in the GOOS WP2.2 Legal framework WP2.3 Financial framework WP3.3 Capacity building and training, outreach WP3.2 Data flow and processing WP3.1 New contributions of glider for marine research WP4.2 Fleet missions WP4.1 Endurance lines WP5.3 Mission planning and analysis WP5.2 Glider payload assessment WP5.1 Ground segment description WP1.1 Project coordination WP5.4 Estimated setup and running costs WP1.2 Internal & external communication WP4.3 Synergies with other platforms WP6 Project Management WP6 Project Management

27. Final General Assembly – Paris, France – September 19, 2014 Task 4.2: Fleet missions responsible person: Alberto Alvarez contributors: NURC, UPMC, OGS, IFM-GEOMAR, CNRS, CSIC plan, execute and review trials of missions involving a fleet of at least 3 gliders simultaneously. define optimal sampling strategies (for example, glider swarms, how can we sample an eddy more efficiently with 2 gliders, 3 gliders or more). test auto piloting programmes, adaptive sampling strategies and OSSEs

28. Final General Assembly – Paris, France – September 19, 2014 D4.4 Field trial of a multi-glider campaign and dossier of lessons learned [complete; lead: Alberto Alvarez ] D4.5 Evaluation of prototype glider fleet mission planning tool [complete?!; lead: Laurent Beguery] Deliverables of Task 4.2

29. Final General Assembly – Paris, France – September 19, 2014

30. piloting system worked well environmental constraints (strong currents) remain limitation for gliders in future: -test automated pilot alarm system during glider malfunctions D4.4 Results

31. Final General Assembly – Paris, France – September 19, 2014 WP1 Project S/T Coordination WP1 Project S/T Coordination WP4 Targeted Experiments WP4 Targeted Experiments WP5 Observatory Infrastructure WP5 Observatory Infrastructure WP3 Scientific Innovation WP3 Scientific Innovation WP2 Integration in the GOOS WP2 Integration in the GOOS WP2.1 Assessment of a glider component in the GOOS WP2.2 Legal framework WP2.3 Financial framework WP3.3 Capacity building and training, outreach WP3.2 Data flow and processing WP3.1 New contributions of glider for marine research WP4.2 Fleet missions WP4.1 Endurance lines WP5.3 Mission planning and analysis WP5.2 Glider payload assessment WP5.1 Ground segment description WP1.1 Project coordination WP5.4 Estimated setup and running costs WP1.2 Internal & external communication WP4.3 Synergies with other platforms WP6 Project Management WP6 Project Management

32. Final General Assembly – Paris, France – September 19, 2014 Task 4.3: Synergies with other platforms Responsible person: Carlos Barrera, PLOCAN contributors: FMI, UEA, NERC, HCMR, OGS, UIB, GEOMAR, UCY, NURC, UPMC trial new sensors on gliders (linked with WP5) to assess their capability (for example, carbon cycle, turbulence, nutrients). compare different design strategies for gliders with Argo floats, moorings and ship-board studies compare sensor behaviours for each technique compared. test synergies between gliders and other components of the global ocean and coastal observing systems. demonstrate the in-field calibration protocols developed in WP5.2 (sensor payloads).

33. Final General Assembly – Paris, France – September 19, 2014 D4.6 Field trials of new sensors for gliders: New sensors for gliders are e.g. optics, video, acoustics [complete; lead: Fabrizio D'Ortenzio] D4.8 Report on the acoustic component in glider observatory [complete; lead: Agnieszka Beszczynska-Moeller] Deliverables of Task 4.3

34. Final General Assembly – Paris, France – September 19, 2014 /

36. 780 Hz RAFOS sources better than 260 Hz choice of source manufacturer important in future: -use tomographic sources -improve positioning algorithm -reduce energy consumption D4.8 Results