{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:47.351318", "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": "2025-Jul-27_to_2025-Jul-31_358.5_9.0"}, "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": 2025070002908}, "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": "July 27 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2025"}, "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": 100778.73394721253}, "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", "Ghana", "Togo"]}, "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": 9.0}, "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": 358.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "358.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 357.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-1.32, 7.32], [-1.47, 6.97], [-1.82, 6.82], [-1.97, 6.47], [-2.5, 6.25], [-3.03, 6.47], [-3.25, 7.0], [-3.15, 7.25], [-3.25, 7.5], [-3.03, 8.03], [-2.68, 8.18], [-2.65, 8.25], [-2.68, 8.32], [-3.03, 8.47], [-3.18, 8.82], [-3.53, 8.97], [-3.75, 9.5], [-3.53, 10.03], [-3.18, 10.18], [-3.03, 10.53], [-2.5, 10.75], [-2.0, 10.54], [-1.5, 10.75], [-1.0, 10.54], [-0.5, 10.75], [0.03, 10.53], [0.18, 10.18], [0.25, 10.15], [0.5, 10.25], [0.75, 10.15], [1.0, 10.25], [1.53, 10.03], [1.75, 9.5], [1.65, 9.25], [1.75, 9.0], [1.53, 8.47], [1.18, 8.32], [1.03, 7.97], [0.5, 7.75], [0.25, 7.85], [0.18, 7.82], [0.03, 7.47], [-0.5, 7.25], [-0.75, 7.35], [-1.0, 7.25], [-1.25, 7.35], [-1.32, 7.32]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.1499999999999773, 8.75], [-2.25, 9.0], [-2.0299999999999727, 9.53], [-1.5, 9.75], [-1.25, 9.65], [-1.0, 9.75], [-0.4700000000000273, 9.53], [-0.3199999999999932, 9.18], [0.029999999999972715, 9.03], [0.25, 8.5], [0.029999999999972715, 7.97], [-0.5, 7.75], [-0.75, 7.85], [-0.8199999999999932, 7.82], [-0.9700000000000273, 7.47], [-1.5, 7.25], [-1.75, 7.35], [-2.0, 7.25], [-2.5299999999999727, 7.47], [-2.75, 8.0], [-2.5299999999999727, 8.53], [-2.180000000000007, 8.68], [-2.1499999999999773, 8.75]]]]}, "2025-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5299999999999727, 8.97], [-3.75, 9.5], [-3.5299999999999727, 10.03], [-3.180000000000007, 10.18], [-3.0299999999999727, 10.53], [-2.5, 10.75], [-2.0, 10.54], [-1.5, 10.75], [-1.0, 10.54], [-0.5, 10.75], [0.029999999999972715, 10.53], [0.18000000000000682, 10.18], [0.25, 10.15], [0.5, 10.25], [0.75, 10.15], [1.0, 10.25], [1.5299999999999727, 10.03], [1.75, 9.5], [1.6499999999999773, 9.25], [1.75, 9.0], [1.5299999999999727, 8.47], [1.1800000000000068, 8.32], [1.0299999999999727, 7.97], [0.5, 7.75], [0.25, 7.85], [0.18000000000000682, 7.82], [0.029999999999972715, 7.47], [-0.5, 7.25], [-0.75, 7.35], [-1.0, 7.25], [-1.25, 7.35], [-1.3199999999999932, 7.32], [-1.4700000000000273, 6.97], [-1.8199999999999932, 6.82], [-1.9700000000000273, 6.47], [-2.5, 6.25], [-3.0299999999999727, 6.47], [-3.25, 7.0], [-3.1499999999999773, 7.25], [-3.25, 7.5], [-3.0299999999999727, 8.03], [-2.680000000000007, 8.18], [-2.6200000000000045, 8.3], [-3.0299999999999727, 8.47], [-3.180000000000007, 8.82], [-3.5299999999999727, 8.97]]]]}, "2025-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5299999999999727, 8.97], [-3.75, 9.5], [-3.5299999999999727, 10.03], [-3.180000000000007, 10.18], [-3.0299999999999727, 10.53], [-2.5, 10.75], [-2.0, 10.54], [-1.5, 10.75], [-1.0, 10.54], [-0.5, 10.75], [0.029999999999972715, 10.53], [0.18000000000000682, 10.18], [0.25, 10.15], [0.5, 10.25], [0.75, 10.15], [1.0, 10.25], [1.5299999999999727, 10.03], [1.75, 9.5], [1.6499999999999773, 9.25], [1.75, 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t2m", "description": "The daily evolution of maximum t2m.", "value": [27.750728861490927, 27.91644694010421, 28.238907114664755, 28.700941975911462, 27.506658172607445]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1649312967638414, 1.3436697998531955, 1.503098407303412, 1.8709174913660649, 1.073173346159706]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3534261685595652, 1.7414583836405768, 1.8452389565723593, 2.5140025483325985, 1.3026492719982343]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3924502817308755, 1.5811955698683111, 1.7916162580758657, 2.3128168943583955, 1.3668290753409373]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6628348439314236, 1.9528424127323145, 2.257587243820808, 3.098310116202255, 1.6470863420577138]}}