Academic Journal
Using a spatio-temporal dynamic state-space model with the EM algorithm to patch gaps in daily riverflow series, with examples from the Volta Basin, West Africa
| العنوان: | Using a spatio-temporal dynamic state-space model with the EM algorithm to patch gaps in daily riverflow series, with examples from the Volta Basin, West Africa |
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| المؤلفون: | Amisigo, B. A., van de Giesen, N. C. |
| المساهمون: | Center for Development Research, Delft University of Technology (TU Delft) |
| المصدر: | ISSN: 1812-2108. |
| بيانات النشر: | HAL CCSD European Geosciences Union |
| سنة النشر: | 2005 |
| المجموعة: | Institut national des sciences de l'Univers: HAL-INSU |
| مصطلحات موضوعية: | [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
| الوصف: | International audience ; A spatio-temporal linear dynamic model has been developed for patching short gaps in daily river runoff series. The model was cast in a state-space form in which the state variable was estimated using the Kalman smoother (RTS smoother). The EM algorithm was used to concurrently estimate both parameter and missing runoff values. Application of the model to daily runoff series in the Volta Basin of West Africa showed that the model was capable of providing good estimates of missing runoff values at a gauging station from the remaining series at the station and at spatially correlated stations in the same sub-basin. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-00298632; https://hal.science/hal-00298632; https://hal.science/hal-00298632/document; https://hal.science/hal-00298632/file/hessd-2-449-2005.pdf |
| الاتاحة: | https://hal.science/hal-00298632 https://hal.science/hal-00298632/document https://hal.science/hal-00298632/file/hessd-2-449-2005.pdf |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.1B6A48B0 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |