ecmwf
@ecmwf Organization
Public Skills
ecmwf-open-data
by ecmwf
Finds, downloads and decodes free ECMWF real-time forecasts — IFS HRES, IFS ENS, AIFS single and AIFS ENS — from ECMWF Open Data (data.ecmwf.int and its AWS/Google mirrors). Use when a task asks for a current or recent ECMWF forecast, the weather forecast for a place or coordinates, a meteogram or time series at a point, which run is latest or when the next one arrives, which parameters, steps, levels or streams are published openly, how big a download is, Open Data URLs or .index files, or the CC-BY-4.0 attribution ECMWF requires. For web maps or dashboards use the ecmwf-opencharts-wms skill; when the user has or mentions an ECMWF account, use the ecmwf-polytope skill for point forecasts. Default route whenever no CDS, MARS or Polytope credentials are available.
ecmwf-opencharts-wms
by ecmwf
Builds ECMWF weather maps — map images and tile layers from the ECMWF ecCharts WMS (mean sea level pressure, 500 hPa geopotential, 850 hPa temperature and wind, ensemble mean and spread, tropical cyclones, CAMS air quality), official OpenCharts forecast charts as PNG/PDF, and ready-made interactive web maps (Leaflet) with a time slider, legends, click values and a 10-day meteogram on click. Use when a task asks for an ECMWF weather map or chart, WMS GetCapabilities, GetMap, GetLegend or GetFeatureInfo URLs, layer names, styles or valid times, adding ECMWF layers to Leaflet, MapLibre or OpenLayers, or building a weather web map or dashboard (always start from scripts/webmap.py). Not for a map of a local GRIB or NetCDF file — that is the ecmwf-earthkit skill.
ecmwf-destine
by ecmwf
Handles any Destination Earth question — load it first; it prepares requests by running scripts/destine.py. Accesses Destination Earth (DestinE) Digital Twin data — the Climate Change Adaptation Digital Twin (Climate DT, multi-decadal IFS-FESOM, IFS-NEMO and ICON simulations and SSP3-7.0 projections), the Weather-Induced Extremes Digital Twin (Extremes DT, high-resolution forecasts of the last ~15 days) and On-Demand Extremes — through the DestinE Polytope service. Use when a task mentions Destination Earth, DestinE, Digital Twins, Climate DT, Extremes DT, nextGEMS, the DestinE Platform (DESP), desp-authentication, upgraded access, or polytope.lumi / polytope.mn5 addresses. Explains how to request the required upgraded access when the user has none; checks the token, builds and routes requests, and retrieves data.
ecmwf-earthkit
by ecmwf
Processes, computes and plots ECMWF weather and climate data with ECMWF's earthkit components — load it before writing ANY numpy, xarray, pandas, matplotlib or cartopy code for weather data, and for any local GRIB (.grib, .grib2) or NetCDF file. Covers reading and selecting fields (earthkit-data), ECMWF-styled maps, multi-panel figures, meteograms and plumes (earthkit-plots), ensemble mean/spread/percentiles, daily and monthly statistics, de-accumulation, climatologies, anomalies and area or country means (earthkit-transforms), wind, humidity, dewpoint, potential temperature, wet bulb, EFI and scores (earthkit-meteo), regridding, nearest gridpoint and country shapes (earthkit-geo), rivers and catchments (earthkit-hydro), unit conversion (earthkit-utils) and hindcast dates (earthkit-time). Also when earthkit code fails or lacks a feature — offers to report it upstream, only with approval.
ecmwf-mars
by ecmwf
Handles any question about ECMWF MARS, including whether MARS access works from this machine — load it first. Writes, checks, sizes and runs requests against ECMWF's MARS archive — the full operational IFS archive (HRES, ENS, waves, past runs, model levels) and ERA5 via MARS — through the ECMWF Web API (~/.ecmwfapirc) or a local mars client on ECMWF systems. Use when a task mentions MARS, asks whether MARS or the ECMWF Web API works from this machine, the ECMWF archive, past operational forecasts older than Open Data keeps, ensemble members or model levels for past dates, MARS request keywords (class, stream, type, levtype, levelist, param, date, time, step, number, expver, grid, area), tape versus disk retrieval, request size or efficiency, splitting large retrievals, or MARS/Web API errors. Validates and estimates offline; licensed data needs a Member State or licensed account.
ecmwf-cds-ads
by ecmwf
Finds, validates and downloads data from the Copernicus Climate Data Store (CDS) and Atmosphere Data Store (ADS), operated by ECMWF — ERA5 and ERA5-Land reanalysis (historical weather since 1940, hourly point time series, climate normals), seasonal forecasts, and CAMS air-quality and atmospheric-composition forecasts and reanalyses. Use when a task mentions ERA5, reanalysis, past weather, climate normals or trends, Copernicus, C3S, CAMS, CDS or ADS dataset ids or requests, cdsapi, ~/.cdsapirc, request size or queue limits, licence acceptance errors, or citing Copernicus data. Validates requests and costs them without an account; tells the user exactly how to get a key when one is missing.
ecmwf-polytope
by ecmwf
Extracts just the data needed from ECMWF's operational forecasts with Polytope feature extraction — hourly point time series (meteograms), 50-member ensemble percentiles at a point, vertical profiles, polygons, bounding boxes, circles and trajectories — in kilobytes instead of downloading global fields. Use when the user has ECMWF credentials (POLYTOPE_USER_KEY, ~/.polytopeapirc or ~/.ecmwfapirc) and asks for a forecast or meteogram at a place, forecast uncertainty, ensemble spread, percentiles or likely ranges at a location (preferred over open-data for any ensemble question at a point), weather along a route or inside a region, Polytope requests or errors, the earthkit polytope source, or whether they have Polytope access. Falls back to the ecmwf-open-data skill when there are no credentials.