{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:41.459030", "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-Oct-11_to_2011-Oct-14_338.5_15.0"}, "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": 2011100002104}, "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": "October 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 14 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": 227677.28118968778}, "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": ["Cabo Verde"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean", "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": 15.0}, "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": 338.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "338.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 331.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 340.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-28.03, 11.97], [-28.25, 12.5], [-28.03, 13.03], [-27.5, 13.25], [-27.25, 13.15], [-27.0, 13.25], [-26.75, 13.15], [-26.68, 13.18], [-26.53, 13.53], [-26.18, 13.68], [-26.03, 14.03], [-25.5, 14.25], [-25.25, 14.15], [-25.0, 14.25], [-24.75, 14.15], [-24.68, 14.18], [-24.65, 14.25], [-24.75, 14.5], [-24.65, 14.75], [-24.75, 15.0], [-24.53, 15.53], [-24.18, 15.68], [-24.03, 16.03], [-23.68, 16.18], [-23.53, 16.53], [-23.18, 16.68], [-23.03, 17.03], [-22.5, 17.25], [-22.25, 17.15], [-22.18, 17.18], [-22.15, 17.25], [-22.25, 17.5], [-22.03, 18.03], [-21.5, 18.25], [-20.97, 18.03], [-20.82, 17.68], [-20.47, 17.53], [-20.32, 17.18], [-19.97, 17.03], [-19.75, 16.5], [-19.85, 16.25], [-19.75, 16.0], [-19.96, 15.5], [-19.75, 15.0], [-19.85, 14.75], [-19.82, 14.68], [-19.75, 14.65], [-19.5, 14.75], [-18.97, 14.53], [-18.75, 14.0], [-18.97, 13.47], [-19.5, 13.25], [-19.75, 13.35], [-20.0, 13.25], [-20.25, 13.35], [-20.32, 13.32], [-20.47, 12.97], [-21.0, 12.75], [-21.25, 12.85], [-21.5, 12.75], [-21.75, 12.85], [-21.82, 12.82], [-21.97, 12.47], [-22.32, 12.32], [-22.47, 11.97], [-23.0, 11.75], [-23.25, 11.85], [-23.32, 11.82], [-23.47, 11.47], [-24.0, 11.25], [-24.25, 11.35], [-24.5, 11.25], [-24.75, 11.35], [-25.0, 11.25], [-25.25, 11.35], [-25.5, 11.25], [-25.75, 11.35], [-26.0, 11.25], [-26.25, 11.35], [-26.5, 11.25], [-27.03, 11.47], [-27.18, 11.82], [-27.25, 11.85], [-27.5, 11.75], [-28.03, 11.97]]]]}, "2011-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-27.5, 13.25], [-27.25, 13.15], [-27.0, 13.25], [-26.75, 13.15], [-26.68, 13.18], [-26.53, 13.53], [-26.18, 13.68], [-26.03, 14.03], [-25.5, 14.25], [-25.25, 14.15], [-25.0, 14.25], [-24.75, 14.15], [-24.68, 14.18], [-24.65, 14.25], [-24.75, 14.5], [-24.65, 14.75], [-24.75, 15.0], [-24.53, 15.53], [-24.18, 15.68], [-24.03, 16.03], [-23.68, 16.18], [-23.53, 16.53], [-23.18, 16.68], [-23.03, 17.03], [-22.5, 17.25], [-22.25, 17.15], [-22.18, 17.18], [-22.15, 17.25], [-22.25, 17.5], [-22.03, 18.03], [-21.5, 18.25], [-20.97, 18.03], [-20.82, 17.68], [-20.47, 17.53], [-20.32, 17.18], [-19.97, 17.03], [-19.75, 16.5], [-19.85, 16.25], [-19.75, 16.0], [-19.96, 15.5], [-19.75, 15.0], [-19.85, 14.75], [-19.82, 14.68], [-19.75, 14.65], [-19.5, 14.75], [-18.97, 14.53], [-18.75, 14.0], [-18.97, 13.47], [-19.5, 13.25], [-19.75, 13.35], [-20.0, 13.25], [-20.25, 13.35], [-20.32, 13.32], [-20.47, 12.97], [-21.0, 12.75], [-21.25, 12.85], [-21.5, 12.75], [-21.75, 12.85], [-21.82, 12.82], [-21.97, 12.47], [-22.32, 12.32], [-22.47, 11.97], [-23.0, 11.75], [-23.25, 11.85], [-23.32, 11.82], [-23.47, 11.47], [-24.0, 11.25], [-24.25, 11.35], [-24.5, 11.25], [-24.75, 11.35], [-25.0, 11.25], [-25.25, 11.35], [-25.5, 11.25], [-25.75, 11.35], [-26.0, 11.25], [-26.25, 11.35], [-26.5, 11.25], [-27.03, 11.47], [-27.18, 11.82], [-27.25, 11.85], [-27.32, 11.82], [-27.47, 11.47], [-28.0, 11.25], [-28.53, 11.47], [-28.75, 12.0], [-28.53, 12.53], [-28.18, 12.68], [-28.03, 13.03], [-27.5, 13.25]]]]}, "2011-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-27.5, 13.25], [-27.25, 13.15], [-27.0, 13.25], [-26.75, 13.15], [-26.68, 13.18], [-26.53, 13.53], [-26.18, 13.68], [-26.03, 14.03], [-25.5, 14.25], [-25.25, 14.15], [-25.0, 14.25], [-24.75, 14.15], [-24.68, 14.18], [-24.65, 14.25], [-24.75, 14.5], [-24.65, 14.75], [-24.75, 15.0], [-24.53, 15.53], [-24.18, 15.68], [-24.03, 16.03], [-23.68, 16.18], [-23.53, 16.53], [-23.18, 16.68], [-23.03, 17.03], [-22.5, 17.25], [-22.25, 17.15], [-22.18, 17.18], [-22.15, 17.25], [-22.25, 17.5], [-22.03, 18.03], [-21.5, 18.25], [-20.97, 18.03], [-20.82, 17.68], [-20.47, 17.53], [-20.32, 17.18], [-19.97, 17.03], [-19.75, 16.5], [-19.85, 16.25], [-19.75, 16.0], [-19.96, 15.5], [-19.75, 15.0], [-19.85, 14.75], [-19.82, 14.68], [-19.75, 14.65], [-19.5, 14.75], [-18.97, 14.53], [-18.75, 14.0], [-18.97, 13.47], [-19.5, 13.25], [-19.75, 13.35], [-20.0, 13.25], [-20.25, 13.35], [-20.32, 13.32], [-20.47, 12.97], [-21.0, 12.75], [-21.25, 12.85], [-21.5, 12.75], [-21.75, 12.85], [-21.82, 12.82], [-21.97, 12.47], [-22.32, 12.32], [-22.47, 11.97], [-23.0, 11.75], [-23.25, 11.85], [-23.32, 11.82], [-23.47, 11.47], [-24.0, 11.25], [-24.25, 11.35], [-24.5, 11.25], [-24.75, 11.35], [-25.0, 11.25], [-25.25, 11.35], [-25.5, 11.25], [-25.75, 11.35], [-26.0, 11.25], [-26.25, 11.35], [-26.5, 11.25], [-27.03, 11.47], [-27.18, 11.82], [-27.25, 11.85], [-27.32, 11.82], [-27.47, 11.47], [-28.0, 11.25], [-28.53, 11.47], [-28.75, 12.0], [-28.53, 12.53], [-28.18, 12.68], [-28.03, 13.03], [-27.5, 13.25]]]]}, "2011-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-28.53, 11.47], [-28.75, 12.0], [-28.53, 12.53], [-28.0, 12.75], [-27.47, 12.53], [-27.25, 12.0], [-27.47, 11.47], [-28.0, 11.25], [-28.53, 11.47]]], [[[-24.53, 14.47], [-24.75, 15.0], [-24.53, 15.53], [-24.0, 15.75], [-23.47, 15.53], [-23.25, 15.0], [-23.47, 14.47], [-24.0, 14.25], [-24.53, 14.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.348983475542468}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.199756026305717}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.78555808548805, 28.305164056184935, 27.819237145926593, 27.323418713617684]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.502864687194233, 29.420581006545774, 28.22107506086678, 27.59713319634824]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.016757219304834, 1.5383614056761499, 1.053964550215069, 0.7352829642069878]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3763273932991638, 2.348983475542468, 1.43649727935707, 0.7881910504501661]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5478466710339644, 2.364245532006324, 1.649274399834868, 1.2599496793744258]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0718717549104335, 3.3367200507041237, 1.9349149620248967, 1.350331869838504]}}