Klimaänderungen und ihre Folgen für den Küstenraum: Impaktfeld Ästuar

Schirmer, Michael; Schuchardt, Bastian

doi:10.1007/978-3-642-77776-9_17

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Regional sensitivity to climate change is caused by (Schirmer & Schuchardt 1993, Sterr & Simmering 1996: low elevation, from below sea level to only a few metres above; the dependence on dikes for flood control; the dependence on irrigation and drainage systems; the transfer of marine signals, such as tides and storm-surges, < 70 km inland via the deepened Weser estuary; the exposure of the river mouth to northwesterly gales; additional impact from changing river discharge; the existence of rare brackish water habitats; and densely populated urban areas, with high economic activity and value.…”

Section: The Study Area and Its Anticipated Vulnerabilitymentioning

confidence: 99%

Assessing the impact of climate change on the Weser estuary region: an interdisciplinary approach

Schirmer

Schuchardt²

2001

Clim. Res.

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In an interdisciplinary project involving life, engineering and socio-economic sciences, the sensitivity to climate change of the hydrologic, ecological and socio-economic properties of the inner Weser estuary and its marshes are analysed and different response strategies are developed and evaluated. To manage the complex interdisciplinary research process, the project has been organised with a stringent 'vertical' and 'horizontal' structure. The 'scenario approach' is used to take uncertainty into account. The climate change scenario for the year 2050 includes a sea level rise, an increase in tidal amplitude and mean temperature (especially in spring and winter) and an increase in precipitation and wind speed. In the absence of countermeasures a multitude of 'negative' primary effects can be expected, including overtopping of dikes by waves, submersion of forelands, changes in freshwater inflow, residence time and water quality in the estuary and water levels in the drainage systems of the marshes. However, the overall impact for the region can primarily be assessed as 'medium' and, if possible mitigating measures are taken into account, overall impact should be 'low'. KEY WORDS: Climate change · Impact · Estuary · Regional scale · Interdisciplinary · UncertaintyResale or republication not permitted without written consent of the publisher

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Section: The Study Area and Its Anticipated Vulnerabilitymentioning

confidence: 99%

Assessing the impact of climate change on the Weser estuary region: an interdisciplinary approach

Schirmer

Schuchardt²

2001

Clim. Res.

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“…Climate change may alter the system further and may also affect the ways in which the estuary is currently utilized. Kunz (1993) and Schirmer & Schuchardt (1993) reviewed the sensitivity of the Weser estuary to possible climate change. Climate change can result in changes in water levels and cur-rents, temperature and freshwater runoff.…”

Section: Introductionmentioning

confidence: 99%

Effects of a specific climate scenario on the hydrography and transport of conservative substances in the Weser estuary, Germany: a case study

Grabemann¹,

Grabemann²,

Herbers³

et al. 2001

Clim. Res.

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The effects of a presumed climate scenario on the hydrography of the Weser estuary between Bremen (weir) and Robbensüdsteert (~10 km downstream of Bremerhaven) were investigated using numerical modeling. The results provide a basic approach for further studies addressing, for example, the utilization and ecology of the Weser estuary and the adjacent areas within the bounds of the winter dike. Morphological aspects are not considered in this paper. A rise in water level at the seaward boundary (high water + 70 cm, low water + 40 cm) propagates upstream only with some slight deviations. In the climate scenario, the subtidal volume and sublittoral for the section between the weir and Bremerhaven increase by about 6 and 7% respectively, while the tidal prism and eulittoral increase by about 16 and 52% respectively. Residence times of conservative water constituents are prolonged for fixed runoffs. These times also affect the water quality. The location of the upstream boundary of the brackish-water zone is located on average 2 km further upstream for fixed runoffs, possibly causing problems with marsh irrigation. KEY WORDS: Weser estuary · Hydrography · Climate scenarioResale or republication not permitted without written consent of the publisher

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