{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:05.470058", "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": "2022-Mar-21_to_2022-Mar-25_351.0_6.5"}, "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": 2022030002339}, "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": "March 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 25 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 113536.84136068737}, "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": ["C\u00f4te d'Ivoire", "Liberia", "Sierra Leone"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "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": 6.5}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 9.15], [-12.18, 9.18], [-12.03, 9.53], [-11.5, 9.75], [-10.97, 9.53], [-10.82, 9.18], [-10.47, 9.03], [-10.32, 8.68], [-9.97, 8.53], [-9.82, 8.18], [-9.47, 8.03], [-9.32, 7.68], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-8.25, 7.65], [-8.0, 7.75], [-7.47, 7.53], [-7.32, 7.18], [-6.97, 7.03], [-6.82, 6.68], [-6.47, 6.53], [-6.25, 6.0], [-6.47, 5.47], [-7.0, 5.25], [-7.25, 5.35], [-7.32, 5.32], [-7.47, 4.97], [-7.82, 4.82], [-7.97, 4.47], [-8.5, 4.25], [-9.03, 4.47], [-9.18, 4.82], [-9.25, 4.85], [-9.5, 4.75], [-10.03, 4.97], [-10.25, 5.5], [-10.15, 5.75], [-10.18, 5.82], [-10.25, 5.85], [-10.5, 5.75], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.68, 6.82], [-11.75, 6.85], [-12.0, 6.75], [-12.53, 6.97], [-12.68, 7.32], [-13.03, 7.47], [-13.25, 8.0], [-13.15, 8.25], [-13.25, 8.5], [-13.03, 9.03], [-12.5, 9.25], [-12.25, 9.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa", "Equatorial.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.25, 8.5], [-13.029999999999973, 9.03], [-12.5, 9.25], [-12.25, 9.15], [-12.180000000000007, 9.18], [-12.029999999999973, 9.53], [-11.5, 9.75], [-10.970000000000027, 9.53], [-10.819999999999993, 9.18], [-10.470000000000027, 9.03], [-10.25, 8.5], [-10.350000000000023, 8.25], [-10.25, 8.0], [-10.350000000000023, 7.75], [-10.319999999999993, 7.68], [-10.25, 7.65], [-10.0, 7.75], [-9.75, 7.65], [-9.5, 7.75], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-8.25, 7.65], [-8.0, 7.75], [-7.470000000000027, 7.53], [-7.25, 7.0], [-7.350000000000023, 6.75], [-7.25, 6.5], [-7.470000000000027, 5.97], [-7.819999999999993, 5.82], [-7.970000000000027, 5.47], [-8.5, 5.25], [-8.75, 5.35], [-9.0, 5.25], [-9.529999999999973, 5.47], [-9.680000000000007, 5.82], [-9.75, 5.85], [-10.0, 5.75], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.25, 6.5], 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t2m.", "value": [28.028389056868775, 28.147125430591473, 27.909640545070204, 27.757222959761634, 27.840165226258193]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.945456563388063, 31.396705102531826, 29.79119990464079, 29.82251995331677, 29.20557142692161]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3122061507292009, 1.575397529665539, 1.4563955041406749, 1.345021198464576, 1.5663821991401041]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.600577900668327, 2.8098423654988096, 2.100961596068146, 1.9024088324947002, 1.9609818377758756]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6733767400311463, 2.0594754385453315, 2.042273911406478, 1.8470485024921233, 2.192978241321021]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.567582714114787, 3.0035499409116695, 2.9525206474363377, 2.4424245932556685, 2.7980833429075616]}}