{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:21.787612", "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": "2018-Oct-13_to_2018-Oct-16_348.5_21.5"}, "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": 2018100001876}, "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 13 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 16 2018"}, "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": 54390.92571724417}, "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": ["Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 21.5}, "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": 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": 346.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 22.25], [-10.97, 22.03], [-10.75, 21.5], [-10.97, 20.97], [-11.5, 20.75], [-12.03, 20.97], [-12.25, 21.5], [-12.03, 22.03], [-11.5, 22.25]]]]}, "2018-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.65, 22.25], [-13.75, 22.5], [-13.53, 23.03], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-12.25, 23.15], [-12.0, 23.25], [-11.75, 23.15], [-11.68, 23.18], [-11.53, 23.53], [-11.0, 23.75], [-10.75, 23.65], [-10.5, 23.75], [-10.25, 23.65], [-10.0, 23.75], [-9.47, 23.53], [-9.25, 23.0], [-9.47, 22.47], [-9.87, 22.3], [-9.75, 22.0], [-9.97, 21.47], [-10.32, 21.32], [-10.47, 20.97], [-11.0, 20.75], [-11.25, 20.85], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-12.75, 20.85], [-13.0, 20.75], [-13.53, 20.97], [-13.75, 21.5], [-13.65, 21.75], [-13.75, 22.0], [-13.65, 22.25]]]]}, "2018-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.65, 22.25], [-13.75, 22.5], [-13.53, 23.03], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-12.25, 23.15], [-12.0, 23.25], [-11.75, 23.15], [-11.68, 23.18], [-11.53, 23.53], [-11.0, 23.75], [-10.75, 23.65], [-10.5, 23.75], [-10.25, 23.65], [-10.0, 23.75], [-9.47, 23.53], [-9.25, 23.0], [-9.47, 22.47], [-9.87, 22.3], [-9.75, 22.0], [-9.97, 21.47], [-10.32, 21.32], [-10.47, 20.97], [-11.0, 20.75], [-11.25, 20.85], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-12.75, 20.85], [-13.0, 20.75], [-13.53, 20.97], [-13.75, 21.5], [-13.65, 21.75], [-13.75, 22.0], [-13.65, 22.25]]]]}, "2018-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.65, 22.25], [-13.75, 22.5], [-13.53, 23.03], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-12.25, 23.15], [-12.0, 23.25], [-11.75, 23.15], [-11.68, 23.18], [-11.53, 23.53], [-11.0, 23.75], [-10.75, 23.65], [-10.5, 23.75], [-10.25, 23.65], [-10.0, 23.75], [-9.47, 23.53], [-9.25, 23.0], [-9.47, 22.47], [-9.87, 22.3], [-9.75, 22.0], [-9.97, 21.47], [-10.32, 21.32], [-10.47, 20.97], [-11.0, 20.75], [-11.25, 20.85], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-12.75, 20.85], [-13.0, 20.75], [-13.53, 20.97], [-13.75, 21.5], [-13.65, 21.75], [-13.75, 22.0], [-13.65, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.797896766238921}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.6371189772758123}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.535450867623524, 31.994964096298816, 32.07600852704962, 31.933992410136852]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.535450867623524, 32.65404947718906, 33.635291783119044, 32.5373957270678]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.892070729888246, 3.4553826870881847, 3.7000325715978484, 3.7951547387933804]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.892070729888246, 3.901293628634164, 4.3610275205008975, 4.797896766238921]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1929963530774217, 1.4378756623526794, 1.5742932715353222, 1.6580549601703294]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1929963530774217, 1.6320738493015994, 1.8538408997761473, 2.142272659801732]}}