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  • 1
    Online Resource
    Online Resource
    At-sea real-time coupled four-dimensional oceanographic and acoustic forecasts during Battlespace Preparation 2007
    Elsevier BV ; 2009
    In:  Journal of Marine Systems Vol. 78 ( 2009-11), p. S306-S320
    Details
    In: Journal of Marine Systems, Elsevier BV, Vol. 78 ( 2009-11), p. S306-S320
    Type of Medium: Online Resource
    ISSN: 0924-7963
    URL: Article
    DOI: 10.1016/j.jmarsys.2009.01.029
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2009
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    SSG: 14
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  • 2
    Online Resource
    Online Resource
    Eddies and variability in the Mozambique Channel
    Elsevier BV ; 2003
    In:  Deep Sea Research Part II: Topical Studies in Oceanography Vol. 50, No. 12-13 ( 2003-7), p. 1987-2003
    Details
    In: Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier BV, Vol. 50, No. 12-13 ( 2003-7), p. 1987-2003
    Type of Medium: Online Resource
    ISSN: 0967-0645
    URL: Article
    DOI: 10.1016/S0967-0645(03)00042-0
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2003
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    SSG: 14
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  • 3
    Online Resource
    Online Resource
    Formation and pathways of intermediate water in the Parallel Ocean Circulation Model's Southern Ocean
    American Geophysical Union (AGU) ; 2006
    In:  Journal of Geophysical Research Vol. 111, No. C6 ( 2006)
    Details
    In: Journal of Geophysical Research, American Geophysical Union (AGU), Vol. 111, No. C6 ( 2006)
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2004JC002357
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2006
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    detail.hit.zdb_id: 161667-5
    detail.hit.zdb_id: 2969341-X
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    detail.hit.zdb_id: 3094268-8
    detail.hit.zdb_id: 710256-2
    detail.hit.zdb_id: 2016804-4
    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
    detail.hit.zdb_id: 3094167-2
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    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 4
    Online Resource
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    Translation, decay and splitting of Agulhas rings in the southeastern Atlantic Ocean
    American Geophysical Union (AGU) ; 2000
    In:  Journal of Geophysical Research: Oceans Vol. 105, No. C9 ( 2000-09-15), p. 21913-21925
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 105, No. C9 ( 2000-09-15), p. 21913-21925
    Abstract: All Agulhas rings that were spawned at the Agulhas retroflection between 1993 and 1996 (a total of 21 rings) have been monitored using TOPEX/Poseidon satellite altimetry and followed as they moved through the southeastern Atlantic Ocean, decayed, interacted with bottom topography and each other, or dissipated completely. Rings preferentially crossed the Walvis Ridge at its deepest parts. After having crossed this ridge they have lower translational speeds, and their decay rate decreases markedly. Half the decay of long‐lived rings takes place in the first 5 months of their lifetimes. In addition to the strong decay of rings in the Cape Basin, about one third of the observed rings do not seem to leave this region at all but totally disintegrate here. The interaction of rings with bottom topography, in particular with the Vema Seamount, is shown frequently to cause splitting of rings. This will enhance mixing of the rings' Indian Ocean water into that of the southern Atlantic. This localized mixing may well provide a considerable source of warm and salty Indian Ocean water into the Atlantic overturning circulation.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/1999JC000046
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2000
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    detail.hit.zdb_id: 3094268-8
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    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
    detail.hit.zdb_id: 3094167-2
    detail.hit.zdb_id: 2220777-6
    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 5
    Online Resource
    Online Resource
    Upstream control of Agulhas Ring shedding
    American Geophysical Union (AGU) ; 2002
    In:  Journal of Geophysical Research Vol. 107, No. C8 ( 2002)
    Details
    In: Journal of Geophysical Research, American Geophysical Union (AGU), Vol. 107, No. C8 ( 2002)
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2001JC000804
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2002
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    detail.hit.zdb_id: 3094104-0
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    detail.hit.zdb_id: 2016813-5
    detail.hit.zdb_id: 2016810-X
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    detail.hit.zdb_id: 2016800-7
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    SSG: 16,13
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  • 6
    Online Resource
    Online Resource
    Observations of the flow in the Mozambique Channel : OBSERVATIONS IN THE MOZAMBIQUE CHANNEL
    American Geophysical Union (AGU) ; 2002
    In:  Geophysical Research Letters Vol. 29, No. 10 ( 2002-05-15), p. 140-1-140-3
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 29, No. 10 ( 2002-05-15), p. 140-1-140-3
    Type of Medium: Online Resource
    ISSN: 0094-8276
    URL: Article
    DOI: 10.1029/2001GL013714
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2002
    detail.hit.zdb_id: 2021599-X
    detail.hit.zdb_id: 7403-2
    SSG: 16,13
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  • 7
    Online Resource
    Online Resource
    Regulating Subsidence and its uncertainty in the Dutch Wadden Sea
    Copernicus GmbH ; 2020
    In:  Proceedings of the International Association of Hydrological Sciences Vol. 382 ( 2020-04-22), p. 63-70
    Details
    In: Proceedings of the International Association of Hydrological Sciences, Copernicus GmbH, Vol. 382 ( 2020-04-22), p. 63-70
    Abstract: Abstract. At the start of gas production its effects on land subsidence are not certain. There are uncertainties in mechanisms, models and parameters. Examples are non-linear deformation of reservoir rock, fault transmissibility, behaviour of overlaying salt and aquifer activity. Looking back at historical cases in the Netherlands, a factor two or three difference between initial prediction and final outcome is quite common. As the Dutch regulator, SSM is tasked with assuring proper management by operators of the risks associated with land subsidence from natural gas production in The Netherlands. Large initial uncertainties can only be tolerated if operators can demonstrate that timely actions can still be taken when predefined subsidence limits are at risk of being exceeded now or in the future. The applied regulatory approach is illustrated by the case history of gas production induced subsidence in the Dutch Wadden Sea area. This environmentally highly sensitive UNESCO World Heritage Site is a natural gas province. Extensive legal, technical and organisational frameworks are in place to prevent damage to its natural values. Initial uncertainties in the predicted subsidence (rate) were later exacerbated by the detection of strong non-linear effects in the observed subsidence behaviour, leading to new concerns. It was realised that – depending on the underlying physical cause(s) – there will be a different impact on future subsidence. To assure proper management of the additional uncertainty by the operator, several improvements in the regulatory approach have been implemented. Possible underlying mechanisms had to be studied in depth and improved data analysis techniques were requested to narrow down uncertainties as time progresses. The approach involves intensified field monitoring, scenario's covering the full range of uncertainties and a particle filter approach to handle uncertainties in predictions and measurements. Spatial-temporal double differences, production data and the full covariance matrix are used to confront scenario predictions against measurements and to assess their relative probability. The regulator is actively involved in assuring this integrated control loop of predictions, monitoring, updating, mitigation measures and the closing of knowledge gaps. The regulator involvement is supported in the Mining law and by appropriate conditions in the production plan assent. With the approach it can be confidently assured that subsidence (rate) will remain within the allowed range.
    Type of Medium: Online Resource
    ISSN: 2199-899X
    URL: Article
    DOI: 10.5194/piahs-382-63-2020
    Language: English
    Publisher: Copernicus GmbH
    Publication Date: 2020
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  • 8
    Online Resource
    Online Resource
    On the uncertainties of monitoring subsidence from small sources: Dutch mining regulation on subsidence monitoring and its role in communication and accountability
    Copernicus GmbH ; 2020
    In:  Proceedings of the International Association of Hydrological Sciences Vol. 382 ( 2020-04-22), p. 531-537
    Details
    In: Proceedings of the International Association of Hydrological Sciences, Copernicus GmbH, Vol. 382 ( 2020-04-22), p. 531-537
    Abstract: Abstract. Mining induced subsidence in the Netherlands is often associated with small gas fields (less than 5 km diameter), or discrete sources (converging salt caverns). As most of the areas experiencing this subsidence are close to sea level, and the effects of gas exploitation in Groningen may be considered a national trauma, there is strong emphasis on control and regulation of the related mining activities and their effects at the surface. The relatively small subsidence (often less than 10 cm), combined with inherent prediction uncertainty involving geological parameters, introduces a monitoring challenge to both mining companies and the regulator. A large initial uncertainty can be reduced during production by a carefully designed monitoring strategy, including evaluation of the results and clear communication on the effects on the uncertainty of the prognosis. In the same process, one may quantify remaining uncertainties and the limitations on predictability. In this contribution, we discuss the nature of some specific uncertainties associated with small source subsidence, and the effects on the regulatory process. The description is based on a realistic assessment of the expected accuracy of subsidence predictions. This allows for a clean comparison between different measurement techniques, and may help prevent overly optimistic claims on predictability. A description of uncertainty in terms of scenarios and parameter sensitivity studies should be used in communicating the expected level of subsidence control to water management boards and the general public.
    Type of Medium: Online Resource
    ISSN: 2199-899X
    URL: Article
    DOI: 10.5194/piahs-382-531-2020
    Language: English
    Publisher: Copernicus GmbH
    Publication Date: 2020
    detail.hit.zdb_id: 2827925-6
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  • 9
    Online Resource
    Online Resource
    Eddies and dipoles around South Madagascar: formation, pathways and large-scale impact
    Elsevier BV ; 2004
    In:  Deep Sea Research Part I: Oceanographic Research Papers Vol. 51, No. 3 ( 2004-3), p. 383-400
    Details
    In: Deep Sea Research Part I: Oceanographic Research Papers, Elsevier BV, Vol. 51, No. 3 ( 2004-3), p. 383-400
    Type of Medium: Online Resource
    ISSN: 0967-0637
    URL: Article
    DOI: 10.1016/j.dsr.2003.10.011
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2004
    detail.hit.zdb_id: 1500309-7
    detail.hit.zdb_id: 1146810-5
    SSG: 14
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  • 10
    Online Resource
    Online Resource
    A description of the seasonal cycle of the equatorial Atlantic from altimeter data
    Elsevier BV ; 2005
    In:  Deep Sea Research Part I: Oceanographic Research Papers Vol. 52, No. 3 ( 2005-3), p. 477-493
    Details
    In: Deep Sea Research Part I: Oceanographic Research Papers, Elsevier BV, Vol. 52, No. 3 ( 2005-3), p. 477-493
    Type of Medium: Online Resource
    ISSN: 0967-0637
    URL: Article
    DOI: 10.1016/j.dsr.2004.10.007
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2005
    detail.hit.zdb_id: 1500309-7
    detail.hit.zdb_id: 1146810-5
    SSG: 14
    Location Call Number Limitation Availability
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