{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:27.738362", "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": "2021-Sep-20_to_2021-Sep-23_345.0_10.0"}, "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": 2021090002286}, "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": "September 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2021"}, "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": 175449.65026629862}, "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": ["Gambia", "Guinea", "Guinea-Bissau", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 10.0}, "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": 345.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.25, 13.0], [-18.03, 13.53], [-17.5, 13.75], [-16.97, 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10.82], [-17.53, 10.97], [-17.75, 11.5], [-17.65, 11.75], [-17.75, 12.0], [-17.65, 12.25], [-17.68, 12.32], [-18.03, 12.47], [-18.25, 13.0]]]]}, "2021-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.53, 12.47], [-18.75, 13.0], [-18.53, 13.53], [-18.0, 13.75], [-17.75, 13.65], [-17.5, 13.75], [-16.97, 13.53], [-16.82, 13.18], [-16.5, 13.04], [-16.0, 13.25], [-15.75, 13.15], [-15.5, 13.25], [-15.25, 13.15], [-15.18, 13.18], [-15.15, 13.25], [-15.25, 13.5], [-15.03, 14.03], [-14.5, 14.25], [-14.25, 14.15], [-14.0, 14.25], [-13.75, 14.15], [-13.5, 14.25], [-13.25, 14.15], [-13.0, 14.25], [-12.75, 14.15], [-12.5, 14.25], [-12.25, 14.15], [-12.0, 14.25], [-11.47, 14.03], [-11.32, 13.68], [-10.97, 13.53], [-10.75, 13.0], [-10.97, 12.47], [-11.32, 12.32], [-11.47, 11.97], [-12.0, 11.75], [-12.25, 11.85], [-12.5, 11.75], [-12.75, 11.85], [-12.82, 11.82], [-12.97, 11.47], [-13.32, 11.32], [-13.35, 11.25], [-13.25, 11.0], [-13.47, 10.47], [-13.82, 10.32], [-13.85, 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1.4441547266516466, 0.8008151855434278]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.895355357712333, 2.980030412638314, 2.454345212722899, 0.8095252778603594]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9377631394297155, 2.424327402753325, 1.8489807491677934, 1.3190881752215935]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.899582358533916, 3.3019824071819013, 2.34174614258359, 1.319482004973531]}}