Ensemble forecast interpretation
Ensemble weather and flood forecasts are summarised as probabilities of exceeding thresholds, so users see the chance of a hazard rather than a single scenario.
GCRI · Clima y amenazas
Forecasting and time-series analysis supply the predictive side of hazard evidence: weather and flood forecasts, seasonal outlooks and statistical predictions. In this field the emphasis is on probabilistic forecasts and on verifying them honestly against what happened.
Forecasting and time-series analysis predict future values of variables from past observations and explanatory information. They support alerta temprana and planning across hazards, markets and health. In climate and hazards and disaster and crisis, forecasts trigger early action and anticipatory finance before shocks materialise. Probabilistic forecasts allow decisions to account for uncertainty across connected sistemas. The canonical description is on STEM Commons.
Ensemble weather and flood forecasts are summarised as probabilities of exceeding thresholds, so users see the chance of a hazard rather than a single scenario.
Seasonal forecasts from several centres are combined, and their skill for the region and season is shown beside every outlook so users know when to trust it.
Forecasts are scored against observations with proper scoring rules and compared with reference forecasts such as climatology.
Rain, daytime surface heat and flood water across the world, from NASA GIBS. Each layer carries its own date.
El mapa interactivo requiere JavaScript; la lista de capas y las fuentes figuran a continuación.
Capas 3
Señales climáticas, para esta página
Teclado, con el mapa seleccionado
Mantenga pulsado Ctrl o ⌘ y desplace para ampliar
Último disponible
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © colaboradores de OpenStreetMap (ODbL) · Natural Earth
Cargando las imágenes más recientes de la NASA.
Arrastre para desplazar. Ctrl o ⌘ y desplazamiento, pellizco o los botones para ampliar; pase el puntero para ver los valores; restablecer devuelve a la región.
Señales climáticas, encuadradas sobre el mundo.Productos satelitales y de modelos tal como los publica la NASA, cada uno con su propia fecha. Son indicadores, no evaluaciones de ningún lugar.
Capas y fechas
Datasets and records used by forecasting and time-series analysis on this platform, with the role each plays and the label its values carry. Sources are listed in el registro de fuentes.
| Datos | Función | Etiqueta |
|---|---|---|
| ECMWF and other centres’ ensemble forecasts | Probabilistic predictions | PRONÓSTICO |
| Copernicus C3S multi-system seasonal forecasts | Seasonal outlooks | PRONÓSTICO |
| Station and gauge observations | Verificación | OBSERVADO |
| Reforecast archives | Skill estimation | MODELADO |
Assembled from the Nexus Standards area profile Normas sobre riesgo climático: the hazards it names, the sistemas and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full Constructor de sistemas.
Amenazas
Sistemas y acoplamientos
Controles
NS-0 Constitución y principiosNS-1 La UNI y el catálogo de artefactos (gramática v0.2: segmentos de dominio, sector, región y entorno)NS-3 UNI de registros de riesgo (gramática, tabla de correspondencia heredada, autoridad de asignación)NS-3b Perfil de metadatos de conjuntos de datos y productos (STAC, DCAT, PROV-O)NS-9 UNI contextuales (despliegues, instancias, instancias de programa)NS-11 Verificación y seguimiento (evidencia, atestaciones, observación de la conformidad de confianza cero)NS-14 Conformidad y correspondencia con normas externasNRS-H65 Familia de amenazas: transgresión de los límites planetarios (NHS-1 planet.boundary)NRS-H62 Familia de amenazas: eventos compuestos y multiamenaza (NHS-1 sys.compound)NRS-H71 Familia de amenazas: catástrofes cósmicas y del tiempo profundo (NHS-1 planet.deep-time)NRS-H79 Familia de amenazas: crisis de salud mental (NHS-1 health.mental)NRS-H75 Familia de amenazas: enfermedades sensibles al clima (NHS-1 health.climate-sensitive)NRS-H7 Familia de amenazas: anomalías de la circulación a gran escala (NHS-1 atmo.climate-mode)Observación
Geografía de ejemplo
Forecasts are evaluated out of sample with proper scoring rules and reliability diagrams. Rolling-origin evaluation tests performance over time.
| Verificación | Cómo se hace |
|---|---|
| Proper scoring rules | Forecasts are scored with measures such as the continuous ranked probability score that reward honest probabilities |
| Reliability diagrams | Forecast probabilities are compared with observed frequencies |
| Reference comparison | Skill is always stated against a reference such as climatology or persistence |
Structural breaks and regime changes undermine models trained on the past. Forecast skill typically declines rapidly with lead time.
El modelo, sus supuestos, sus datos y su incertidumbre, en la forma en que un científico o un ingeniero los comprobaría. Las estructuras siguen métodos publicados. Los valores representados son ilustrativos, no hallazgos.
How far the outlook for forecasting for hazards could spread, shown as ranges rather than a single line.
Process explorer · Process
9 steps·3 stages·1 gate
Proceso
The WMO flood forecasting manual and Early Warnings for All describe the chain from forecast to action, across EW4All’s four pillars.
Neutral outline of a published external standard or method, from its issuing body. Not a record of operation. Nexus does not perform, certify or approve any step shown. A gate or decision belongs to the party the source names.
Climate and Hazards stewards forecasting and time-series analysis for the Consortium and reviews how it is applied across platforms.
serie Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
No envíe nunca datos personales, detalles sensibles de infraestructura ni nada que no tenga derecho a compartir. Un aporte se revisa antes de su uso; enviarlo no confiere autoría ni derechos editoriales, y el patrocinio nunca compra un hallazgo.
La información y las consultas están abiertas hoy. Una consulta recibe una referencia e indica el siguiente paso; las solicitudes, pagos, asignaciones de cómputo y registros solo se abren cuando existen su equipo, sus condiciones y la capacidad de revisión.
Los mapas, datos y cifras de este sitio se muestran como contexto e información general. No son consejos, pronósticos ni avisos; los límites de la información se exponen en los Descargos de responsabilidad y los Avisos sobre datos.
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