{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:01.848109", "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": "2015-Oct-05_to_2015-Oct-08_355.0_24.0"}, "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": 2015100001226}, "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 05 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 08 2015"}, "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": 111266.91579417043}, "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"]}, "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": 24.0}, "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": 355.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.0\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": 356.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.5, 25.25], [-3.97, 25.03], [-3.75, 24.5], [-3.97, 23.97], [-4.32, 23.82], [-4.47, 23.47], [-5.0, 23.25], [-5.53, 23.47], [-5.75, 24.0], [-5.53, 24.53], [-5.18, 24.68], [-5.03, 25.03], [-4.5, 25.25]]]]}, "2015-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 22.53], [-8.18, 22.68], [-8.15, 22.75], [-8.25, 23.0], [-8.03, 23.53], [-7.5, 23.75], [-7.25, 23.65], [-7.18, 23.68], [-7.03, 24.03], [-6.68, 24.18], [-6.53, 24.53], [-6.18, 24.68], [-6.03, 25.03], [-5.5, 25.25], [-5.25, 25.15], [-5.0, 25.25], [-4.75, 25.15], [-4.5, 25.25], [-3.97, 25.03], [-3.75, 24.5], [-3.97, 23.97], [-4.32, 23.82], [-4.35, 23.75], [-4.25, 23.5], [-4.35, 23.25], [-4.25, 23.0], [-4.35, 22.75], [-4.32, 22.68], [-4.25, 22.65], [-4.0, 22.75], [-3.75, 22.65], [-3.5, 22.75], [-2.97, 22.53], [-2.75, 22.0], [-2.97, 21.47], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.25, 21.35], [-4.5, 21.25], [-4.75, 21.35], [-4.82, 21.32], [-4.97, 20.97], [-5.5, 20.75], [-6.0, 20.96], [-6.32, 20.82], [-6.47, 20.47], [-7.0, 20.25], [-7.25, 20.35], [-7.5, 20.25], [-8.03, 20.47], [-8.18, 20.82], [-8.53, 20.97], [-8.75, 21.5], [-8.65, 21.75], [-8.75, 22.0], [-8.53, 22.53]]]]}, "2015-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 22.53], [-8.18, 22.68], [-8.15, 22.75], [-8.25, 23.0], [-8.03, 23.53], [-7.5, 23.75], [-7.25, 23.65], [-7.18, 23.68], [-7.03, 24.03], [-6.68, 24.18], [-6.53, 24.53], [-6.18, 24.68], [-6.03, 25.03], [-5.5, 25.25], [-5.25, 25.15], [-5.0, 25.25], [-4.75, 25.15], [-4.5, 25.25], [-3.97, 25.03], [-3.75, 24.5], [-3.97, 23.97], [-4.32, 23.82], [-4.35, 23.75], [-4.25, 23.5], [-4.35, 23.25], [-4.25, 23.0], [-4.35, 22.75], [-4.32, 22.68], [-4.25, 22.65], [-4.0, 22.75], [-3.75, 22.65], [-3.5, 22.75], [-2.97, 22.53], [-2.75, 22.0], [-2.97, 21.47], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.25, 21.35], [-4.5, 21.25], [-4.75, 21.35], [-4.82, 21.32], [-4.97, 20.97], [-5.5, 20.75], [-6.0, 20.96], [-6.32, 20.82], [-6.47, 20.47], [-7.0, 20.25], [-7.25, 20.35], [-7.5, 20.25], [-8.03, 20.47], [-8.18, 20.82], [-8.53, 20.97], [-8.75, 21.5], [-8.65, 21.75], [-8.75, 22.0], [-8.53, 22.53]]]]}, "2015-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 22.53], [-8.18, 22.68], [-8.15, 22.75], [-8.25, 23.0], [-8.03, 23.53], [-7.5, 23.75], [-7.25, 23.65], [-7.18, 23.68], [-7.03, 24.03], [-6.68, 24.18], [-6.53, 24.53], [-6.18, 24.68], [-6.03, 25.03], [-5.5, 25.25], [-5.25, 25.15], [-5.0, 25.25], [-4.75, 25.15], [-4.5, 25.25], [-3.97, 25.03], [-3.75, 24.5], [-3.97, 23.97], [-4.32, 23.82], [-4.35, 23.75], [-4.25, 23.5], [-4.35, 23.25], [-4.25, 23.0], [-4.35, 22.75], [-4.32, 22.68], [-4.25, 22.65], [-4.0, 22.75], [-3.75, 22.65], [-3.5, 22.75], [-2.97, 22.53], [-2.75, 22.0], [-2.97, 21.47], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.25, 21.35], [-4.5, 21.25], [-4.75, 21.35], [-4.82, 21.32], [-4.97, 20.97], [-5.5, 20.75], [-6.0, 20.96], [-6.32, 20.82], [-6.47, 20.47], [-7.0, 20.25], [-7.25, 20.35], [-7.5, 20.25], [-8.03, 20.47], [-8.18, 20.82], [-8.53, 20.97], [-8.75, 21.5], [-8.65, 21.75], [-8.75, 22.0], [-8.53, 22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.266003666966412}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.127257169856608}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.43330772860969, 34.30234658159941, 34.08071264659338, 33.81743442127538]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.69264223433669, 35.20012425196563, 35.05355162432994, 34.959066789986196]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8375679244192895, 3.1177176192203344, 3.1512319721813196, 3.127677776908545]}, "anom_evo_maxamp": {"name": "Evolution of 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