{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:07.971030", "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": "2018-Sep-18_to_2018-Sep-21_355.5_12.5"}, "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": 2018090002329}, "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 18 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 21 2018"}, "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": 227005.29352680582}, "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", "C\u00f4te d'Ivoire", "Mali"]}, "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": []}, "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": 12.5}, "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": 355.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 358.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.75, 11.0], [-6.65, 11.25], [-6.75, 11.5], [-6.53, 12.03], 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8.82], [-6.25, 8.85], [-6.5, 8.75], [-6.75, 8.85], [-7.0, 8.75], [-7.53, 8.97], [-7.75, 9.5], [-7.53, 10.03], [-7.18, 10.18], [-7.03, 10.53], [-6.68, 10.68]]]]}, "2018-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.68, 10.68], [-6.65, 10.75], [-6.75, 11.0], [-6.65, 11.25], [-6.75, 11.5], [-6.53, 12.03], [-6.18, 12.18], [-6.15, 12.25], [-6.18, 12.32], [-6.53, 12.47], [-6.75, 13.0], [-6.53, 13.53], [-6.0, 13.75], [-5.75, 13.65], [-5.5, 13.75], [-5.25, 13.65], [-5.18, 13.68], [-5.03, 14.03], [-4.68, 14.18], [-4.53, 14.53], [-4.18, 14.68], [-4.03, 15.03], [-3.5, 15.25], [-2.97, 15.03], [-2.8, 14.62], [-2.5, 14.75], [-1.97, 14.53], [-1.82, 14.18], [-1.47, 14.03], [-1.25, 13.5], [-1.35, 13.25], [-1.32, 13.18], [-0.97, 13.03], [-0.75, 12.5], [-0.97, 11.97], [-1.32, 11.82], [-1.35, 11.75], [-1.25, 11.5], [-1.35, 11.25], [-1.25, 11.0], [-1.47, 10.47], [-2.0, 10.25], [-2.25, 10.35], [-2.5, 10.25], [-2.75, 10.35], [-2.82, 10.32], [-2.97, 9.97], [-3.32, 9.82], [-3.47, 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[-4.53, 14.53], [-4.0, 14.75], [-3.75, 14.65], [-3.5, 14.75], [-3.0, 14.54], [-2.5, 14.75], [-1.97, 14.53], [-1.82, 14.18], [-1.47, 14.03], [-1.25, 13.5], [-1.35, 13.25], [-1.25, 13.0], [-1.47, 12.47], [-2.0, 12.25], [-2.25, 12.35], [-2.32, 12.32], [-2.47, 11.97], [-3.0, 11.75], [-3.53, 11.97], [-3.68, 12.32], [-3.75, 12.35], [-3.82, 12.32], [-3.85, 12.25], [-3.75, 12.0], [-3.97, 11.47], [-4.5, 11.25], [-4.8, 11.38], [-4.97, 10.97], [-5.32, 10.82], [-5.47, 10.47], [-6.0, 10.25], [-6.53, 10.47], [-6.75, 11.0], [-6.65, 11.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.44635581763805}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.184990312420405}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.66702217287434, 28.448097796574814, 28.953878247318812, 28.867985919782143]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.86113239422781, 31.10815132750031, 31.375025785264995, 31.014546712037827]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.20250441036906, 2.0212652405878955, 2.436648049256034, 1.8946773187319481]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1236287088025847, 2.8100736440118226, 3.44635581763805, 2.7380664566220503]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8799788258998802, 1.727459260360029, 2.0234129452269456, 1.4944426455686055]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.430644145665115, 2.2839179041584248, 2.425286567921082, 1.923068404052741]}}