{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:46.706655", "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-09_to_2011-Jun-12_344.5_14.5"}, "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": 2011060002156}, "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 09 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 12 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": 146441.1405581775}, "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": ["Gambia", "Mauritania", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["North Atlantic Ocean"]}, "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": 14.5}, "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": 344.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.5, 15.25], [-14.97, 15.03], [-14.82, 14.68], [-14.47, 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[-12.35, 14.25], [-12.25, 14.0], [-12.47, 13.47], [-12.82, 13.32], [-12.85, 13.25], [-12.75, 13.0], [-12.97, 12.47], [-13.5, 12.25], [-14.03, 12.47], [-14.18, 12.82], [-14.25, 12.85], [-14.5, 12.75], [-14.75, 12.85], [-14.82, 12.82], [-14.97, 12.47], [-15.5, 12.25], [-16.03, 12.47], [-16.18, 12.82], [-16.53, 12.97], [-16.68, 13.32], [-17.0, 13.46], [-17.5, 13.25], [-18.03, 13.47], [-18.18, 13.82], [-18.53, 13.97], [-18.68, 14.32], [-19.03, 14.47], [-19.25, 15.0]]]]}, "2011-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.25, 15.0], [-19.03, 15.53], [-18.5, 15.75], [-18.25, 15.65], [-18.0, 15.75], [-17.47, 15.53], [-17.32, 15.18], [-17.25, 15.15], [-17.0, 15.25], [-16.75, 15.15], [-16.5, 15.25], [-16.25, 15.15], [-16.18, 15.18], [-16.15, 15.25], [-16.25, 15.5], [-16.15, 15.75], [-16.25, 16.0], [-16.03, 16.53], [-15.68, 16.68], [-15.53, 17.03], [-15.0, 17.25], [-14.75, 17.15], [-14.5, 17.25], [-13.97, 17.03], [-13.82, 16.68], [-13.75, 16.65], [-13.5, 16.75], [-13.25, 16.65], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-12.25, 16.65], [-12.0, 16.75], [-11.47, 16.53], [-11.25, 16.0], [-11.35, 15.75], [-11.25, 15.5], [-11.47, 14.97], [-12.0, 14.75], [-12.25, 14.85], [-12.37, 14.8], [-12.25, 14.5], [-12.35, 14.25], [-12.25, 14.0], [-12.47, 13.47], [-12.82, 13.32], [-12.85, 13.25], [-12.75, 13.0], [-12.97, 12.47], [-13.5, 12.25], [-14.03, 12.47], [-14.18, 12.82], [-14.25, 12.85], [-14.5, 12.75], [-14.75, 12.85], [-14.82, 12.82], [-14.97, 12.47], [-15.5, 12.25], [-16.03, 12.47], [-16.18, 12.82], [-16.53, 12.97], [-16.68, 13.32], [-17.0, 13.46], [-17.5, 13.25], [-18.03, 13.47], [-18.18, 13.82], [-18.53, 13.97], [-18.68, 14.32], [-19.03, 14.47], [-19.25, 15.0]]]]}, "2011-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.25, 15.0], [-19.03, 15.53], [-18.5, 15.75], [-18.25, 15.65], [-18.0, 15.75], [-17.47, 15.53], [-17.32, 15.18], [-17.25, 15.15], [-17.0, 15.25], [-16.75, 15.15], [-16.5, 15.25], [-16.25, 15.15], 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anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.743464630352264}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.8481782929300232}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.57277837025208, 33.494364447138764, 34.96132748897185, 34.01917812508799]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.78911484104833, 38.386076496726446, 39.968241052990095, 38.758630922675366]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5346081595875773, 2.1710202884168806, 3.698325214806383, 2.7824195905335363]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6661760867191333, 3.944766494007183, 6.743464630352264, 4.4895523381673]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3115984186222365, 1.5425925258174844, 2.657688420789644, 2.012037694810405]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4469824164921081, 1.990144949049508, 3.6716895924278745, 2.831898225497756]}}