{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:42.159095", "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-Feb-06_to_2022-Feb-11_358.0_7.5"}, "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": 2022020001605}, "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": "February 06 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 11 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 67570.11093135296}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 7.5}, "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": 358.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "358.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 355.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 359.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-4.0, 7.75], [-3.75, 7.65], [-3.5, 7.75], [-3.25, 7.65], [-3.0, 7.75], [-2.75, 7.65], [-2.68, 7.68], [-2.53, 8.03], [-2.0, 8.25], [-1.47, 8.03], [-1.32, 7.68], [-0.97, 7.53], [-0.75, 7.0], [-0.85, 6.75], [-0.82, 6.68], [-0.47, 6.53], [-0.25, 6.0], [-0.47, 5.47], [-1.0, 5.25], [-1.25, 5.35], [-1.32, 5.32], [-1.47, 4.97], [-2.0, 4.75], [-2.53, 4.97], [-2.68, 5.32], [-2.75, 5.35], [-3.0, 5.25], [-3.25, 5.35], [-3.5, 5.25], [-3.75, 5.35], [-4.0, 5.25], [-4.25, 5.35], [-4.5, 5.25], [-5.03, 5.47], [-5.25, 6.0], [-5.03, 6.53], [-4.68, 6.68], [-4.65, 6.75], [-4.75, 7.0], [-4.53, 7.53], [-4.0, 7.75]]]]}}, "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": {"2022-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.5299999999999727, 6.97], [-2.75, 7.5], [-2.5299999999999727, 8.03], [-2.0, 8.25], [-1.4700000000000273, 8.03], [-1.3199999999999932, 7.68], [-0.9700000000000273, 7.53], [-0.75, 7.0], [-0.8500000000000227, 6.75], [-0.75, 6.5], [-0.9700000000000273, 5.97], [-1.5, 5.75], [-2.0299999999999727, 5.97], [-2.25, 6.5], [-2.1499999999999773, 6.75], [-2.180000000000007, 6.82], [-2.5299999999999727, 6.97]]]]}, "2022-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.5299999999999727, 6.97], [-2.75, 7.5], [-2.5299999999999727, 8.03], [-2.0, 8.25], [-1.4700000000000273, 8.03], [-1.3199999999999932, 7.68], [-0.9700000000000273, 7.53], [-0.75, 7.0], [-0.8500000000000227, 6.75], [-0.75, 6.5], [-0.9700000000000273, 5.97], [-1.5, 5.75], [-2.0299999999999727, 5.97], [-2.25, 6.5], [-2.1499999999999773, 6.75], [-2.180000000000007, 6.82], [-2.5299999999999727, 6.97]]]]}, "2022-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 7.5], [-2.5299999999999727, 8.03], [-2.0, 8.25], [-1.4700000000000273, 8.03], [-1.3199999999999932, 7.68], [-0.9700000000000273, 7.53], [-0.75, 7.0], [-0.8500000000000227, 6.75], [-0.75, 6.5], [-0.9700000000000273, 5.97], [-1.5, 5.75], [-2.0299999999999727, 5.97], [-2.180000000000007, 6.32], [-2.5299999999999727, 6.47], [-2.75, 7.0], [-2.6499999999999773, 7.25], [-2.75, 7.5]]]]}, "2022-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.649999999999977, 6.75], [-4.75, 7.0], [-4.529999999999973, 7.53], [-4.0, 7.75], [-3.75, 7.65], [-3.5, 7.75], [-3.25, 7.65], [-3.0, 7.75], [-2.75, 7.65], [-2.680000000000007, 7.68], [-2.5299999999999727, 8.03], [-2.0, 8.25], [-1.4700000000000273, 8.03], [-1.3199999999999932, 7.68], [-0.9700000000000273, 7.53], [-0.75, 7.0], [-0.8500000000000227, 6.75], [-0.8199999999999932, 6.68], [-0.4700000000000273, 6.53], [-0.25, 6.0], [-0.4700000000000273, 5.47], [-1.0, 5.25], [-1.25, 5.35], [-1.3199999999999932, 5.32], [-1.4700000000000273, 4.97], [-2.0, 4.75], [-2.5299999999999727, 4.97], [-2.680000000000007, 5.32], [-2.75, 5.35], [-3.0, 5.25], [-3.25, 5.35], [-3.5, 5.25], [-3.75, 5.35], [-4.0, 5.25], [-4.25, 5.35], [-4.5, 5.25], [-5.029999999999973, 5.47], [-5.25, 6.0], [-5.029999999999973, 6.53], [-4.680000000000007, 6.68], [-4.649999999999977, 6.75]]]]}, "2022-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.649999999999977, 6.75], [-4.75, 7.0], [-4.529999999999973, 7.53], [-4.0, 7.75], [-3.75, 7.65], [-3.5, 7.75], [-3.25, 7.65], [-3.0, 7.75], [-2.75, 7.65], [-2.680000000000007, 7.68], [-2.5299999999999727, 8.03], [-2.0, 8.25], [-1.4700000000000273, 8.03], [-1.3199999999999932, 7.68], [-0.9700000000000273, 7.53], [-0.75, 7.0], [-0.8500000000000227, 6.75], [-0.8199999999999932, 6.68], [-0.4700000000000273, 6.53], [-0.25, 6.0], [-0.4700000000000273, 5.47], [-1.0, 5.25], [-1.25, 5.35], [-1.3199999999999932, 5.32], [-1.4700000000000273, 4.97], [-2.0, 4.75], [-2.5299999999999727, 4.97], [-2.680000000000007, 5.32], [-2.75, 5.35], [-3.0, 5.25], [-3.25, 5.35], [-3.5, 5.25], [-3.75, 5.35], [-4.0, 5.25], [-4.25, 5.35], [-4.5, 5.25], [-5.029999999999973, 5.47], [-5.25, 6.0], [-5.029999999999973, 6.53], 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.190667530779592}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8058663772741352}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.014026290771483, 29.944227904043544, 29.964167180352206, 29.778340590223195, 29.87861273499783, 29.868916655285034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.18083482576145, 30.038464461844285, 30.15521733276023, 30.520414023268643, 30.636708268990276, 30.86877261735424]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8563122684445261, 1.7419690708511553, 1.7112587036021836, 1.7428277828955174, 1.856778333052742, 1.8385126148763167]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.979776135931786, 1.818241125670852, 1.8536246397506488, 2.09442151911702, 2.190667530779592, 2.0703950895982643]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5000985477170399, 1.4481936624309215, 1.426002861605465, 1.5764138615214542, 1.661916918368585, 1.6624715859121575]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.559344464723821, 1.4899677695186935, 1.5228102249360982, 2.1825994626321585, 2.0848134338041713, 1.9921092664848383]}}