{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:57.986493", "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-Nov-08_to_2011-Nov-14_348.5_14.0"}, "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": 2011110001898}, "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": "November 08 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 14 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 53993.104307155394}, "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": ["Mali", "Mauritania"]}, "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": []}, "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": 14.0}, "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": 348.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.53, 14.03], [-10.0, 14.25], [-9.75, 14.15], [-9.68, 14.18], [-9.53, 14.53], [-9.0, 14.75], [-8.47, 14.53], [-8.25, 14.0], [-8.35, 13.75], [-8.25, 13.5], [-8.47, 12.97], [-9.0, 12.75], [-9.25, 12.85], [-9.32, 12.82], [-9.47, 12.47], [-10.0, 12.25], [-10.53, 12.47], [-10.75, 13.0], [-10.65, 13.25], [-10.75, 13.5], [-10.53, 14.03]]]]}, "2011-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 15.5], [-12.03, 16.03], [-11.5, 16.25], [-11.25, 16.15], [-11.0, 16.25], [-10.75, 16.15], [-10.5, 16.25], [-9.97, 16.03], [-9.75, 15.5], [-9.85, 15.25], [-9.82, 15.18], [-9.47, 15.03], [-9.3, 14.62], [-9.0, 14.75], [-8.47, 14.53], [-8.25, 14.0], [-8.35, 13.75], [-8.25, 13.5], [-8.47, 12.97], [-8.82, 12.82], [-8.97, 12.47], [-9.5, 12.25], [-9.75, 12.35], [-10.0, 12.25], [-10.25, 12.35], [-10.32, 12.32], [-10.47, 11.97], [-11.0, 11.75], [-11.53, 11.97], [-11.75, 12.5], [-11.53, 13.03], [-11.18, 13.18], [-11.07, 13.43], [-11.5, 13.25], [-12.03, 13.47], [-12.25, 14.0], [-12.03, 14.53], [-11.5, 14.75], [-12.03, 14.97], [-12.25, 15.5]], [[-11.07, 14.57], [-11.18, 14.82], [-11.25, 14.85], [-11.5, 14.75], [-11.07, 14.57]], [[-10.65, 14.25], [-10.68, 14.32], [-10.93, 14.43], [-10.75, 14.0], [-10.65, 14.25]], [[-10.93, 13.57], [-10.68, 13.68], [-10.65, 13.75], [-10.75, 14.0], [-10.93, 13.57]]]]}, "2011-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 14.53], [-11.5, 14.75], [-12.03, 14.97], [-12.25, 15.5], [-12.03, 16.03], [-11.5, 16.25], [-11.25, 16.15], [-11.0, 16.25], [-10.75, 16.15], [-10.5, 16.25], [-9.97, 16.03], [-9.75, 15.5], [-9.85, 15.25], [-9.82, 15.18], [-9.47, 15.03], [-9.3, 14.62], [-9.0, 14.75], [-8.47, 14.53], [-8.25, 14.0], [-8.35, 13.75], [-8.25, 13.5], [-8.47, 12.97], [-8.82, 12.82], [-8.97, 12.47], [-9.5, 12.25], [-9.75, 12.35], [-10.0, 12.25], [-10.25, 12.35], [-10.32, 12.32], [-10.47, 11.97], [-11.0, 11.75], [-11.53, 11.97], [-11.75, 12.5], [-11.62, 12.8], [-12.03, 12.97], [-12.25, 13.5], [-12.15, 13.75], [-12.25, 14.0], [-12.03, 14.53]], [[-11.25, 14.65], [-11.12, 14.7], [-11.18, 14.82], [-11.25, 14.85], [-11.5, 14.75], [-11.25, 14.65]]]]}, "2011-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 14.53], [-11.5, 14.75], [-12.03, 14.97], [-12.25, 15.5], [-12.03, 16.03], [-11.5, 16.25], [-11.25, 16.15], [-11.0, 16.25], [-10.75, 16.15], [-10.5, 16.25], [-9.97, 16.03], [-9.75, 15.5], [-9.85, 15.25], [-9.82, 15.18], [-9.47, 15.03], [-9.25, 14.5], [-9.35, 14.25], [-9.32, 14.18], [-8.97, 14.03], [-8.75, 13.5], [-8.85, 13.25], [-8.75, 13.0], [-8.97, 12.47], [-9.5, 12.25], [-9.75, 12.35], [-10.0, 12.25], [-10.25, 12.35], [-10.32, 12.32], [-10.47, 11.97], [-11.0, 11.75], [-11.53, 11.97], [-11.75, 12.5], [-11.62, 12.8], [-12.03, 12.97], [-12.25, 13.5], [-12.15, 13.75], [-12.25, 14.0], [-12.03, 14.53]], [[-11.25, 14.65], [-11.12, 14.7], [-11.18, 14.82], [-11.25, 14.85], [-11.5, 14.75], [-11.25, 14.65]]]]}, "2011-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 14.53], [-11.5, 14.75], [-11.25, 14.65], [-11.0, 14.75], [-10.47, 14.53], [-10.25, 14.0], [-10.35, 13.75], [-10.25, 13.5], [-10.47, 12.97], [-11.0, 12.75], [-11.25, 12.85], [-11.5, 12.75], [-12.03, 12.97], [-12.25, 13.5], [-12.15, 13.75], [-12.25, 14.0], [-12.03, 14.53]]]]}, "2011-11-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 13.47], [-12.25, 14.0], [-12.03, 14.53], [-11.5, 14.75], [-11.25, 14.65], [-11.0, 14.75], [-10.47, 14.53], [-10.25, 14.0], [-10.47, 13.47], [-11.0, 13.25], [-11.25, 13.35], [-11.5, 13.25], [-12.03, 13.47]]]]}, "2011-11-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 14.75], [-10.97, 14.53], [-10.75, 14.0], [-10.97, 13.47], [-11.5, 13.25], [-12.03, 13.47], [-12.25, 14.0], [-12.03, 14.53], [-11.5, 14.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.3258431323003492}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.205121562158604}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.372356483195972, 30.86812586435792, 31.241820321907483, 30.657555111088413, 30.714591840209778, 31.04806422481647, 30.48979096751947]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.188631358184182, 32.02211255589242, 32.15076044867607, 32.073585030593165, 31.011640623702363, 31.11518486452968, 30.48979096751947]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8918400714923336, 2.164003161078396, 2.544802554303383, 2.0519107593649686, 1.9220983963098348, 2.2497082188619117, 1.7683393677737058]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2837912384680408, 2.76822439085214, 3.3258431323003492, 2.645513303598591, 2.0844011992890614, 2.3543536785110746, 1.7683393677737058]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4420739766678152, 1.6380217878666565, 1.8826506124283593, 1.4717660372125865, 1.4171719343490778, 1.7124266155854395, 1.3516704307722875]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6879387592143453, 2.0592550726136207, 2.428955622484163, 1.9241079759212896, 1.5188283676991616, 1.7971573158411818, 1.3516704307722875]}}