مورد إلكتروني
Detecting a forced signal in satellite-era sea-level change
| العنوان: | Detecting a forced signal in satellite-era sea-level change |
|---|---|
| المؤلفون: | Richter, K., Meyssignac, B., Slangen, A.B.A., Melet, A., Church, J.A., Fettweis, X., Marzeion, B., Agosta, C., Ligtenberg, S.R.M., Spada, G., Palmer, M.D., Roberts, C.D., Champollion, N. |
| المصدر: | %3Ci%3EEnviron.+Res.+Lett.+15%289%29%3C%2Fi%3E%3A+094079.+%3Ca+href%3D%22 |
| بيانات النشر: | 2020 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | In this study, we compare the spatial patterns of simulated geocentric sea-level change to observations from satellite altimetry over the period 1993–2015 to assess whether a forced signal is detectable. This is challenging, as on these time scales internal variability plays an important role and may dominate the observed spatial patterns of regional sea-level change. Model simulations of regional sea-level change associated with sterodynamic sea level, atmospheric loading, glacier mass change, and ice-sheet surface mass balance changes are combined with observations of groundwater depletion, reservoir storage, and dynamic ice-sheet mass changes. The resulting total geocentric regional sea-level change is then compared to independent measurements from satellite altimeter observations. The detectability of the climate-forced signal is assessed by comparing the model ensemble mean of the 'historical' simulations with the characteristics of sea-level variability in pre-industrial control simulations. To further minimize the impact of internal variability, zonal averages were produced. We find that, in all ocean basins, zonally averaged simulated sea-level changes are consistent with observations within sampling uncertainties associated with simulated internal variability of the sterodynamic component. Furthermore, the simulated zonally averaged sea-level change cannot be explained by internal variability alone—thus we conclude that the observations include a forced contribution that is detectable at basin scales. |
| مصطلحات الفهرس: | info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion |
| URL: | info:eu-repo/semantics/altIdentifier/wos/000570728300001 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1088/1748-9326/ab986e |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess |
| ملاحظة: | application/pdf English |
| أرقام أخرى: | NLKNR oai:imis.nioz.nl:330290 1319438000 |
| المصدر المساهم: | NIOZ KONINKLIJK INST VOOR ZEEONDERZOEK From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1319438000 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |