{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:49.348453", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2011-Jun-25_to_2011-Jun-28_352.5_43.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2011060002881}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 25 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 171764.49410157866}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Portugal", "Spain"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 43.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 352.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 358.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 43.53], [-8.18, 43.68], [-8.03, 44.03], [-7.5, 44.25], 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41.82], [-8.53, 41.97], [-8.75, 42.5], [-8.65, 42.75], [-8.75, 43.0], [-8.53, 43.53]]]]}, "2011-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 43.53], [-8.18, 43.68], [-8.03, 44.03], [-7.5, 44.25], [-7.25, 44.15], [-7.0, 44.25], [-6.75, 44.15], [-6.5, 44.25], [-6.25, 44.15], [-6.0, 44.25], [-5.75, 44.15], [-5.5, 44.25], [-4.97, 44.03], [-4.82, 43.68], [-4.75, 43.65], [-4.5, 43.75], [-3.97, 43.53], [-3.82, 43.18], [-3.47, 43.03], [-3.32, 42.68], [-2.97, 42.53], [-2.82, 42.18], [-2.47, 42.03], [-2.32, 41.68], [-2.25, 41.65], [-2.0, 41.75], [-1.47, 41.53], [-1.32, 41.18], [-0.97, 41.03], [-0.75, 40.5], [-0.97, 39.97], [-1.32, 39.82], [-1.35, 39.75], [-1.25, 39.5], [-1.47, 38.97], [-2.0, 38.75], [-2.5, 38.96], [-3.0, 38.75], [-3.53, 38.97], [-3.75, 39.5], [-3.65, 39.75], [-3.75, 40.0], [-3.62, 40.3], [-4.0, 40.46], [-4.32, 40.32], [-4.47, 39.97], [-5.0, 39.75], [-5.25, 39.85], [-5.32, 39.82], [-5.35, 39.75], [-5.32, 39.68], [-4.97, 39.53], [-4.82, 39.18], 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"MultiPolygon", "coordinates": [[[[-3.62, 40.3], [-4.03, 40.47], [-4.25, 41.0], [-4.03, 41.53], [-3.5, 41.75], [-3.0, 41.54], [-2.5, 41.75], [-2.25, 41.65], [-2.0, 41.75], [-1.47, 41.53], [-1.32, 41.18], [-0.97, 41.03], [-0.75, 40.5], [-0.97, 39.97], [-1.32, 39.82], [-1.35, 39.75], [-1.25, 39.5], [-1.47, 38.97], [-2.0, 38.75], [-2.5, 38.96], [-3.0, 38.75], [-3.53, 38.97], [-3.75, 39.5], [-3.65, 39.75], [-3.75, 40.0], [-3.62, 40.3]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.135875064788934}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.596314174436835}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.90631847840342, 27.046940442083212, 25.87218543183843, 27.045159416745378]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.716351613268444, 31.88216983318091, 31.019178329481065, 30.194807735693132]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.806690692699391, 6.6269498225000145, 5.3941780713365635, 4.519007824830953]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.624914407849474, 9.135875064788934, 7.649922375476251, 4.841195299793526]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6109550649510544, 2.212739714981045, 1.7257314398250956, 1.342140646703775]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.651799936497628, 3.617608583108808, 2.227987460103004, 1.6133422584627821]}}