{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:04.617872", "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": "2020-May-13_to_2020-May-16_2.5_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": 2020050001771}, "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": "May 13 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 16 2020"}, "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": 140948.54920503905}, "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": ["Burkina Faso", "Mali", "Niger"]}, "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": 14.5}, "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": 2.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "2.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 5.25}, "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": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.0, 15.75], [5.53, 15.53], [5.75, 15.0], [5.53, 14.47], [5.0, 14.25], [4.47, 14.47], [4.25, 15.0], [4.47, 15.53], [5.0, 15.75]]]]}, "2020-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.68, 13.68], [-0.65, 13.75], [-0.68, 13.82], [-1.03, 13.97], [-1.25, 14.5], [-1.15, 14.75], [-1.25, 15.0], [-1.03, 15.53], [-0.5, 15.75], [0.03, 15.53], [0.18, 15.18], [0.25, 15.15], [0.5, 15.25], [1.03, 15.03], [1.25, 14.5], [1.47, 15.03], [1.82, 15.18], [1.97, 15.53], [2.32, 15.68], [2.35, 15.75], [2.25, 16.0], [2.47, 16.53], [3.0, 16.75], [3.25, 16.65], [3.5, 16.75], [4.03, 16.53], [4.18, 16.18], [4.25, 16.15], [4.5, 16.25], [5.03, 16.03], [5.18, 15.68], [5.53, 15.53], [5.75, 15.0], [5.53, 14.47], [5.0, 14.25], [4.75, 14.35], [4.63, 14.3], [4.75, 14.0], [4.53, 13.47], [4.18, 13.32], [4.03, 12.97], [3.68, 12.82], [3.53, 12.47], [3.0, 12.25], [2.75, 12.35], [2.68, 12.32], [2.53, 11.97], [2.0, 11.75], [1.75, 11.85], [1.68, 11.82], [1.53, 11.47], [1.0, 11.25], [0.47, 11.47], [0.25, 12.0], [0.35, 12.25], [0.32, 12.32], [0.25, 12.35], [0.18, 12.32], [0.03, 11.97], [-0.5, 11.75], [-0.75, 11.85], [-1.0, 11.75], [-1.53, 11.97], [-1.75, 12.5], [-1.53, 13.03], [-1.18, 13.18], [-1.03, 13.53], [-0.68, 13.68]], [[1.13, 14.2], [1.25, 14.15], [1.32, 14.18], [1.35, 14.25], [1.25, 14.5], [1.13, 14.2]]]]}, "2020-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.68, 13.68], [-0.65, 13.75], [-0.68, 13.82], [-1.03, 13.97], [-1.25, 14.5], [-1.15, 14.75], [-1.25, 15.0], [-1.03, 15.53], [-0.5, 15.75], [0.03, 15.53], [0.18, 15.18], [0.25, 15.15], [0.5, 15.25], [1.03, 15.03], [1.25, 14.5], [1.47, 15.03], [1.82, 15.18], [1.97, 15.53], [2.32, 15.68], [2.35, 15.75], [2.25, 16.0], [2.47, 16.53], [3.0, 16.75], [3.25, 16.65], [3.5, 16.75], [4.03, 16.53], [4.18, 16.18], [4.25, 16.15], [4.5, 16.25], [5.03, 16.03], [5.18, 15.68], [5.53, 15.53], [5.75, 15.0], [5.53, 14.47], [5.0, 14.25], [4.75, 14.35], [4.63, 14.3], [4.75, 14.0], [4.53, 13.47], [4.18, 13.32], [4.03, 12.97], [3.68, 12.82], [3.53, 12.47], [3.0, 12.25], [2.75, 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[35.93617853832512, 36.47556703840576, 36.47210458362696, 36.609874469570514]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.93617853832512, 37.544276439173984, 38.09471181878695, 37.87702683717379]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7984168119793367, 2.0296532761737502, 2.040025806362362, 2.2234188885039505]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7984168119793367, 2.8019759444415513, 2.556648693112834, 2.842797930355516]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3519595671945979, 1.4160426902453118, 1.4420212950827305, 1.5204757519199352]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3519595671945979, 1.8717905149418266, 1.8565162809274502, 1.905761668413014]}}