Sunday, December 17, 2017
      CMRE Facebook page  CMRE LinkedIn page  CMRE PAO Youtube page
   
Text Size
CMRE banner

Formal Reports

Report of results of completed projects or major milestones either in scientific terms or in terms acceptable to a wider audience. Note: Unless linked to the full text, reports are only available to NATO member nations from designated distribution centres. 

Documents

Order by : Name | Date | Hits [ Ascendant ]

Secure deployable communications setup for unattended sensors (Forward Eyes) Secure deployable communications setup for unattended sensors (Forward Eyes)

Date added: 09/01/2006
Date modified: 06/22/2012
Filesize: Unknown

Secure deployable communications setup for unattended sensors (Forward Eyes). NURC-FR-2006-019. September 2006.

The execution of the NURC Scientific Programme of Work has demonstrated the value to operational commands of near real time environmental data in support of amphibious landings. The Forward Eyes covert system, composed of a meteo station, a wave-current meter and a surveillance camera, has been developed on the basis of that experience and tested during the Loyal Midas 05 Military Exercise. This report discusses the communications architecture developed by NURC for the Forward Eyes camera system, and provides all configuration data necessary to replicate it using Commercial Off The Shelf (COTS) devices. The IPSEC Virtual Private Network (VPN) concept presented in this document is applicable to mobile terminals and sensors that not only are connecting with dynamic (e.g. variable over time) IP addressing, but that are also “hidden” behind a gateway or firewall that performs network address translation or port address translation (NAT/PAT). This configuration applies therefore to a wide range of terminals with connectivity options that include dial-up, GPRS, or the Inmarsat Regional BGAN (RBGAN) service, to provide global communications coverage in support of operations conducted by NATO Expeditionary Forces.

A NATO tool for prediction of waves and longshore currents in the surf zone A NATO tool for prediction of waves and longshore currents in the surf zone

Date added: 07/01/2006
Date modified: 06/22/2012
Filesize: Unknown

A NATO tool for prediction of waves and longshore currents in the surf zone. NURC-FR-2006-014. July 2006.

A proto-type modelling framework has been developed for NATO which may be used to perform surf predictions in support of amphibious or special operations. The model concept involves a hybrid approach in which a spatially complete 2-D wave growth and transformation model (SWAN) is paired with a simple 1-D surf model (NSSM). This approach permits the more general application of basic surf models to environments in which they are not strictly valid. The framework provides a user friendly graphical user interface (GUI) which assists the user not only in developing model input files, running the models and displaying the results but also performs rudimentary data processing steps to facilitate these activities. The results indicate that the system developed provides reasonable  predictions and that the hybrid modelling approach used can be also applied in some areas  where the 1-D beach paradigm is not apparently valid.

Hybrid surf  modelling: final report Hybrid surf modelling: final report

Date added: 07/01/2006
Date modified: 08/13/2012
Filesize: Unknown

Hybrid surf  modelling: final report. NURC-FR-2006-016. July 2006.

Motivated by multiple requests for the development of a surf modelling capability within NATO, the NATO Undersea Research Centre created a research project in which one of the goals was to develop and test the framework for such a modelling capability. This report discusses the results of that portion of the surf modelling project. The guiding principle was that the modelling procedure framework developed must maximize its applicability and reliability while minimizing its complexity and computational requirements. The project vision was that the resulting product could be operated at sea by a properly trained METOC officer who had some access to global data bases.

Performance of centralized and distributed tyracking for multistatic ASW scenarios Performance of centralized and distributed tyracking for multistatic ASW scenarios

Date added: 06/01/2006
Date modified: 06/22/2012
Filesize: Unknown

Performance of centralized and distributed tyracking for multistatic ASW scenarios. NURC-FR-2006-001. June 2006.

Target tracking significantly improves the detection and localization performance of contact data; as such, it provides significant value added to the undersea surveillance processing chain. Centralized and distributed fusion architectures have complementary strengths: the former is best with high detection redundancy, high false alarm environments; the latter is best with low detection redundancy. Data fusion provides a robust surveillance picture that exceeds the performance of any given sensor in a field of like-performing sensors, and nearly matches the performance of the best-performing sensor when id performance dominates that of all other sensors. In all cases, simple track classification based on track duration, average speed, and heading stability provides additional performance gains.

Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: uncertainties and probability distribution areas Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: uncertainties and probability distribution areas

Date added: 05/01/2006
Date modified: 06/22/2012
Filesize: Unknown

Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: uncertainties and probability distribution areas. NURC-FR-2006-012. May 2006.

An increasing number of current models routinely provide weather forecasts and climate predictions, offering multiple options on resolutions, range, domains and derived fields. NATO requirements include reliable tactical knowledge and forecasts of the sea surface components, where potential mine threats have to be mitigated or avoided and where search and rescue efforts have to be optimized. These issues become more challenging and relevant when considering support for Expeditionary Warfare (in remote areas with limited access) and countering naval asymmetric warfare (need for high accuracy and reliability). The surface drift is the resultant of many different direct and indirect contributions of the atmosphere, the ocean and the sea surface itself. However, the prediction of the surface drift resultant still remains a challenge when the different components have competing contributions, like in coastal or near-shore areas. One of the possible solutions to address these issues is to migrate from the traditional deterministic approaches towards probabilistic-stochastic methodologies. When multiple models and data become available, the envisaged probabilisticstochastic alternative is the multi-model super-ensemble technique which uses an optimized combination of an ensemble of models. This technique has previously been demonstrated to improve forecast skills in the atmospheric and is applied here to the prediction of surface drift in the Adriatic. The technique combines optimally an atmospheric, an ocean and a wave model and is shown to outperform traditional forecast methods.

User Login