Provisional DBCP 2005 Scientific and Technical Workshop – Program (vA)
Presentation slots – 20 mins including 15 mins presentation + 5 mins questions / discussion (except where variation agreed)
THEMES:
Vision and Possibilities / Technological Developments – including novel or emerging demands for new or improved technology and network performance (applications pull); and developments in buoys / instruments (technology push).
Operational Enhancements – evaluation / analysis of operational performance or trials; data communications and data assimilation; performance and efficiency benchmarking; new systems and practices;
Applications of Collected Data – research and operational data applications; case studies, with a particular focus on the host country’s region.
MONDAY 17 OCTOBER
# / THEME / TIME / TOPIC / PRESENTER / AUTHORIST SESSION / 09:00 – 09:15 / Opening of Scientific and Technical Workshop / David Meldrum, DBCP Chair
09:15 – 09:25 / Technical Workshop Program (whole)
1st Session Organisation / Ken Jarrott
Chair – 1st Session
1 / Applications / Research / 09:25 -09:45 / Data Collection Platforms off the Coast of Argentina / Ariel H Troisi et al
2 / Applications / Research / 09:47 – 10:07 / Indian Perspectives of Early Warning System for Oceanographic Disasters / K Premkumar
3 / Applications / Research / 10:09 – 10:29 / Comparison of Forecast and Observed Internal Tides in the Eastern Mediterranean Sea / C Horton (Beth Horton presenter)
4 / Applications / Research / 10:31 – 10:46 / ARGO Buoys Deployment in Eastern South Pacific for the 2005-2007 Period – Motivation – Technique – Deployment Sites / Alexis Chaigneau
10:48 – 11:00 / Session Close Remarks & Quests + Announcements / Chair – 1st Session
11:00 – 11:30 / Morning Break
2ND SESSION / # / THEME / TIME / TOPIC / PRESENTER / AUTHOR
11:30 – 11:35 / Session Organisation / Introduction of Speakers / Chair – 2nd Session
5 / Applications / Research / 11:37 – 11:57 / A Global Timeseries Observatory System (OceanSITES) / Uwe Send
6 / Applications / Research / 11:59 – 12:19 / GPS Cellular Drifter Technology for Coastal Ocean Observing Systems / Peter Niiler (presenter Carter Ohlman)
7 / Operations / 12:21 – 12:56 / Atlantic Demonstration Buoys: Preliminary Results (30 mins presentation required) / Craig Engler, Mayra Pazos
12:56 – 13:00 / Session Close Remarks & Quests + Announcements / Chair – 2nd Session
13:00 – 14:00 / Lunch
3RD SESSION / 14:00 – 14:05 / Session Organisation / Introduction of Speakers / Chair – 2nd Session
8 / Operations / 14:05 – 14:25 / Pacific Gyre Minimet Drifter / Andrew Lowy Sybrandy
9 / Operations / 14:27 – 14:47 / Network of Surface Salinity Drifters in Bay of Biscay / Pierre Blouch
10 / Operations / 14:49 – 15:09 / The Performance of Minimet Wind and Temperature Chain Drifters in Hurricane Rita / William Scuba, Peter Niiler
11 / Operations / 15:11 – 15:31 / Data Management and Communications / William Burnett
15:31 – 15:36 / Session Close Remarks & Quests + Announcements / Chair – 3rd Session
15:36 – 16:06 / Afternoon Break
4TH SESSION / 16:06 – 16:08 / Session Organisation / Introduction of Speakers / Chair – 4th Session
12 / Operations / 16:10 – 16:30 / Intricacy in Sustaining the Moored Buoy Network in IndianSeas / K Premkumar
13 / Operations / 16:32 – 16:52 / A Simple Model for Drifting Buoy Life-Times, and a Method for Estimating Evolution of a Network's Size / Etienne Charpentier
******** POSSIBLE SPARE SLOT ***************
16:52 – 17:05 / Session Close Remarks & Quests + Announcements / Chair – 3rd Session
CLOSE OF DAY
TUESDAY 18 OCTOBER
# / THEME / TIME / TOPIC / PRESENTER / AUTHORIST SESSION / 09:00 – 09:10 / Session Organisation / Introduction of Speakers / Chair – 1st Session
14 / Vision, Possibilities, Tech. Developments / 09:10 -09:30 / Technical challenges facing the DBCP / David Meldrum
15 / Vision, Possibilities, Tech. Developments / 09:47 – 10:07 / Argos 3 – The Next Generation / Bill Woodward, Christian Ortega
16 / Vision, Possibilities, Tech. Developments / 10:09 – 10:29 / A Novel Ice-Drifting Platform For Deployment During The International Polar Year / David Meldrum
17 / Vision, Possibilities, Tech. Developments / 10:31 – 10:46 / Radioscience and Buoys Merge in the Southern Ocean / Rick Cole et al (USA)
10:48 – 11:00 / Session Close Remarks & Quests + Announcements / Chair – 1st Session
11:00 – 11:30 / Morning Break
2ND SESSION / 11:30 – 11:3 5 / Session Organisation / Introduction of Speakers / Chair – 2nd Session
18 / Vision, Possibilities, Tech. Developments / 11:37 – 11:57 / Developments in Telemetry, Data Collection Systems and Hydrogen Gas Mitigation at Axys Technologies Inc. / Mark Blaseckie
19 / Vision, Possibilities, Tech. Developments / 12:00 – 12:20 / Telemetry Solutions for Acoustic Doppler Current Profiler Measurements of Waves and Currents / Neil Trenaman, Rick Cole, et al
20 / Vision, Possibilities, Tech. Developments / 12:22: 12:42 / The Results of the New Drifters Development and Testing In-situ / Sergei Motshev, Beth Horton, et al
12:44 – 12:50 / Session Close Remarks & Quests + Announcements / Chair – 2nd Session
12:50 – 12:55 / Workshop Close / Ken Jarrott
13:00 – 14:00 / WORKSHOP CLOSE
DBCP21_Workshop_abstracts.docPage 1
PROVISIONAL AGENDA FOR
THE SCIENTIFIC AND TECHNICAL WORKSHOP
OF THE DATA BUOY COOPERATION PANEL
VENUE: Buenos Aires, Argentina
DATE : October 17-18, 2005
WORKSHOP CHAIRS: Ken Jarrott1 / William Scuba2
Australian Bureau of Meteorology, Scripps Institute
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THEME: APPLICATION OF COLLECTED DATA :research and operational applications; case studies.
Session 1: Monday 17th 09:15 hrs – 11:00 hrs
Session 2: Monday 17th 11:30 hrs – 13:00 hrs
Session 3: Monday 17th14:00 hrs – 15:30 hrs
1. Data Collection Platforms off the Coast of Argentina
Authors: Ariel H. Troisi, Fabian A. Vetere, Aldo C. Firpo (Armada Argentina – Servicio de Hidrografía Naval)
Abstract: In the framework of the Project “Prevención de la Contaminación Costera y Gestión de la Diversidad Biológica Marina” (PNUD ARG/02/018) and in order to obtain a continuous time series of oceanographic and meteorological data of the Argentinean marine coast, two collection platforms were installed in positions 40.938º S, 65.074º W and 43.833º S, 59.674º W. These platforms, “Wavescan” type from Fugro-Oceanor, transmit the environmental data via Inmarsat C to a land station for analysis and processing. One of the aims is to create an information system that will contribute to decision making in environmental management issues as well as to operational purposes. Preliminary results are hereby presented.
2. Indian Perspective on Early Warning System for Oceanogenic Disasters
Author: K. Premkumar (National Institute of Ocean Technology, Chennai, India)
Abstract: The Tsunami on December 26, 2004 generated by an earthquake off the west coast of Northern Sumatra caused a major disaster for the Indian Ocean rim countries, which were not prepared for the ocean’s fury of this vast magnitude. No countries in the region had an early Tsunami warning system to identify the generation of a Tsunami or could get little help from the International community regarding its formation. India was one among the worst affected nations which suffered loss of 12,405 human life and damages around USD 2.56 billion was the first to announce to build a Tsunami warning system for the Indian Ocean region. India systematically carry out observation in its waters using Drifting Buoys, Moored Buoys, Argo Floats, Tide Gauges, Satellites, Research Vessels, Voluntary Observing ships etc. India is an active participant in various international programmes and most of the data collected are shared with international community through GTS and.
Government of India through Department of Ocean Development (DOD) is now in the process of establishing a tsunami warning system for the Indian Ocean region. National Institute of Ocean Technology (NIOT) Chennai under the DOD is already maintaining 20 buoy network in IndianSeas through National Data Buoy Programme (NDBP) and is poised for further growth. Bottom Pressure Recorders (BPR) integrated with these buoys can be used for Tsunami warning. India has a plan to deploy such 10 buoys in the Indian Ocean region. Along with the Tsunami buoys, dedicated networks of seismic stations, HF radars, Tide gauges, Current meters etc. having realtime communication will form an integrated tsunami warning system. The time series data from this network will enhance the predictive capability of existing warning systems for other oceanogenic disasters like cyclones, storm surges etc.
3. Comparison of Forecast and Observed Internal Tides in the Eastern Mediterranean Sea
Authors: C. Horton and M. Clifford (Naval Oceanographic Office, Stennis Space Center, USA)
Abstract: The Naval Oceanographic Office operationally runs a forecast system for the Mediterranean Sea built around a version of the Princeton Ocean Model (POM) forced by winds and tides. The model implementation has 3.2-km horizontal resolution and 47 sigma levels in the vertical. The original pressure gradient scheme has been replaced with one allowing steep bathymetry, and the model bathymetry has been only minimally smoothed and has no restriction upon steepness. The relatively high resolution of the model, the incorporation of barotropic tides, and the realistically steep bathymetry allow the model to generate internal tides.
In order to facilitate the testing of the forecast system, profiling drifters have been deployed in the Mediterranean Sea, and the CTD profiles from these drifters (available on the ARGO server) are assimilated by the modelling system. Normally, these profilers measure only a single deep cast each cycle, but we worked with the manufacturer to allow a “bounce” cycle to be inserted between each deep cycle. A bounce cycle is a sequence of 7 consecutive shallow profiles at 2-hour intervals, and each profile extends from 140-m to 40-m depth with a 20-m resolution. Only temperature is measured in this cycle.
Profiling drifters with the bounce cycle have been deployed south of Crete and Cyprus and have provided new bounce cycles at 5- or 6-day intervals. The drifting of the profilers has provided for some measure of the spatial and temporal variability of the internal tide signal. A compilation of observations will be shown along with a discussion of the usefulness and limitations of the bounce cycle. Specific observations will be compared with model forecasts for the purpose of understanding how well the forecast system predicts the strength and spatial variability of internal tides.
4. ARGO buoys deployment in the Eastern South-Pacific for the 2005-2007 period - Motivation –Technique - Deployment Sites
Author: Alexis Chaigneau (COPAS, Centre for Oceanographic Investigation for SE Pacific)
Abstract.The Eastern South-Pacific (ESP) offshore Northern Chile and Peru is characterized by the presence of the most pronounced and extended oxygen minimum zone (OMZ) of the world ocean. Located at intermediate depths (<1000 m), this OMZ plays a crucial role on the greenhouse gases (like CO2 and N2O) exchange between the ocean and the atmosphere, but also on the adaptation of the ecosystems in such an anoxic environment. The ESP also exhibits a complex three-dimensional circulation and T-S structure, with the presence in the upper 2000 m of distinct water masses originated from equatorial, subtropical, subantarctic, and the Antarctic regions. Superimposed to these rather large-scale characteristics, the mesoscale activity is seen as an important actor for both the transfer of heat and salt from the offshore waters to the surface coastal layers, and for the offshore propagation of physical and biogeochemical properties from the coastal upwelling regions.
Despite its important physical and biogeochemical characteristics, the ESP is still relatively under-sampled and badly known. In order to evaluate spatial distribution and variability of the OMZ and the water masses in the ESP, and to determine the vertical structure of the mesoscale eddies in this region, two independent but complementary international projects have led to obtaining 30 ARGO buoys. Some of these floats (16-20) will be equipped with Optode Aanderaa oxygen sensors, and the deployments will take place between the end of 2005 and 2007 at different sites offshore the Peruvian and Chilean coasts.
5. A Global Timeseries Observatory System (OceanSITES)
Author: Uwe Send (Scripps Institution of Oceanography)
Abstract: An international effort (OceanSITES) will be presented for coordinating and facilitating the implementation of a sustained open-ocean timeseries observatory system. The Steering Team consists of scientists involved in or with an interest in operating sites that would contribute to the system. All major ocean research disciplines are represented. A goal is that this system serve both the research and operational communities, and to reach pre-operational and sustained status. A number of developments are needed for this, including technology and data management, and it will be shown that these are well on the way or existing already.
6. GPS-Cellular Drifter Technology for Coastal Ocean Observing Systems
Author: Peter Niiler (Scripps Institution of Oceanography)
Abstract: New drifter technology utilizing GPS and terrestrial cellular communications allows inexpensive collection of high-resolution trajectories in the near-shore region to address questions related to small-scale advection and dispersion. The drifter uses GPS to determine its position, and the Mobitex terrestrial cellular communications system to transmit the position data in near-real-time. This configuration allows position data with order meter accuracy to be sampled every few minutes, and transmitted inexpensively. Near-real-time transmission of highly accurate position data enables the drifters to be easily retrieved and redeployed. Near 300 drifter tracks collected off the Santa Barbara and San Diego coasts show validations of high frequency (HF) radar observations of near-surface currents improve by roughly 50% when comparisons are made with average values computed from more than 15 drifter observations collected on time and space scales commensurate with HF radar observations. The improvement is due to drifter resolution of sub-grid-scale eddies that are included in time-space averaged HF radar fields. The drifters resolve scales of motion not present in HF radar surface current maps, and are thus complementary in coastal ocean observing systems.
THEME: OPERATIONAL PRACTICES AND ENHANCEMENTS
evaluation / analysis of performance; trials; data communications and data assimilation; performance benchmarking; new systems and practices.Session 2: Monday 11:30 hrs – 13:00 hrs (final paper)
Session 3: Monday 17th, 14:00 hrs to 15:30 hrs
Session 4: Monday 17th, 16:00 to close
7. Atlantic Demonstration Buoys: Preliminary Results
Authors: Craig Engler and Mayra Pazos
Abstract: The Global Drifter Center is conducting a comparison study of SVP drift buoys built with the mini drogue. The study is being called Atlantic Demonstration Buoys (ADB). In this study, we will be comparing the performance of the drifters: transmitter performance and lifetime, submergence or strain sensor performance, drogue lifetime, SST thermistor performance, and anomalous behavior with respect to other drifters in the cluster. The SVP drift buoys with mini drogue are being deployed as Clusters in open ocean regions of the Atlantic Ocean.
Each Cluster consists of four buoys, one buoy from each manufacturer. Buoys are activated before deployment and deployed within minutes of each other. As of this time four cluster of ADB buoys have been deployed in the Atlantic Ocean. Preliminary results will be discussed at the workshop.
8. Pacific Gyre Minimet Drifter
Author: Andrew Lowy Sybrandy (Pacific Gyre Inc)
Abstract: Pacific Gyre built the 20 drifting buoys purchased by Peter Niiler of the Scripps Institution of Oceanography and deployed by the NOAA Hurricane Research Division into Hurricane Rita in September 2005. Twelve of these drifters were Pacific Gyre Digital Minimet platforms, and 8 were Temperature Chain drifters with Pacific Gyre Digital Minimet electronics installed. Much of the work was done in cooperation with Peter Niiler and Bill Scuba of the SIO, Etienne Charpentier of the DBCP, and Mayra Pazos of AOML/NOAA. The drifter construction, packaging, and data formats were modified, were tested at sea off the coast of California, shipped to Keesler Air Force Base in Mississippi, survived their first hurricane in storage, shipped to Atlanta Georgia and deployed into Hurricane Rita. All 20 drifters survived air deployment from a C-130 aircraft and collected data throughout the hurricane, and transmitted that data into the GTS.
9. Network of Surface Salinity Drifters in Bay of Biscay
Author: Pierre Blouch, MeteoFrance
Abstract: Drifting buoy platforms for measuring the sea surface salinity have under development for the past several years. In order to test the validity of theses platforms over time in a biologically rich region of the ocean, 16 salinity drifting buoys were deployed in the Bay of Biscay. The results of this experiment are discussed as well as any conclusions that can be drawn from it.
10. The Performance of Minimet Wind and Temperature Chain Drifters in Hurricane Rita
Authors: William Scuba and Peter Niiler (Scripps Institution of Oceanography)
Abstract. Between 1998 and 2003 wind drifters have been deployed in the tropical Atlantic in regions where hurricanes tend to develop in strength or approach landfall, however, projection of winds from NCEP reanalysis on these drifters has revealed that during that time period no wind drifter south of 30N has experienced winds in excess of 27m/sec. Starting in 2003, fifty five buoys have been deployed directly in front of hurricanes and have measure sea surface temperature, atmospheric pressure, wind direction, and wind speed below 25 m/s. In order to test whether wind speeds above 25 m/s and subsurface temperatures down to 100m can be measured from a drifting buoy platform, twelve standard Minimet buoys and eight Minimet buoys fitted with a 100m long temperature chains were successfully deployed on September 21, 2005 at a distance of about 24 hours in front of the projected path of a category-5 hurricane, Rita, in the vicinity of 26N, 92W. The data from this experiment is presented and reviewed.
11. Data Management and Communications
Author: William Burnett (NationalDataBuoyCenter, Stennis Space Center, USA)
Abstract: The U.S. National Oceanic and Atmospheric Administration’s (NOAA) National Data Buoy Center (NDBC) reorganized on May 1st, 2005 and created the Data Management and Communications (DMAC) Branch. This reorganization allows NDBC to align their Center with the Integrated Ocean Observing System’s (IOOS) goals and principles – specifically addressing data management.
The DMAC branch will focus on five key areas:
- Obtain marine weather and ocean observations from NDBC platforms, NOAA observatories, IOOS Regional Associations, oil companies and universities.
- Ensure the quality of these observations in a timeframe consistent with needs of forecasters, mariners, modelers, and archive centers.
- Disseminate the data to diverse user communities via multiple transmission pathways.
- Take a leadership role in developing and setting IOOS standards and protocols through workshops, meetings, etc....
- Coordinates with National Weather Service offices, NOAA and IOOS partners to effectively and efficiently interoperate between diverse organizations (both public and private) and validates user requirements.
12. Intricacy in Sustaining the Moored Buoy Network in Indian Seas
Authors: Tata Sudhakar, D. Rajasekhar, G. Rajesh, K. Jossia Joseph and K. Premkumar, National Institute of Ocean Technology, Chennai