{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:58.708881", "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": "2024-Aug-12_to_2024-Aug-15_344.0_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": 2024080001769}, "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": "August 12 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2024"}, "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": 115122.14538082306}, "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": ["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": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 345.75}, "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": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.03, 13.53], [-18.5, 13.75], [-18.25, 13.65], [-18.0, 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13.75], [-17.75, 13.65], [-17.5, 13.75], [-16.97, 13.53], [-16.82, 13.18], [-16.7, 13.12], [-16.53, 13.53], [-16.0, 13.75], [-15.75, 13.65], [-15.5, 13.75], [-14.97, 13.53], [-14.82, 13.18], [-14.47, 13.03], [-14.25, 12.5], [-14.35, 12.25], [-14.25, 12.0], [-14.47, 11.47], [-14.82, 11.32], [-14.85, 11.25], [-14.82, 11.18], [-14.47, 11.03], [-14.32, 10.68], [-13.97, 10.53], [-13.75, 10.0], [-13.85, 9.75], [-13.75, 9.5], [-13.97, 8.97], [-14.5, 8.75], [-14.75, 8.85], [-15.0, 8.75], [-15.25, 8.85], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.53, 8.97], [-16.68, 9.32], [-17.03, 9.47], [-17.25, 10.0], [-17.15, 10.25], [-17.18, 10.32], [-17.53, 10.47], [-17.68, 10.82], [-18.03, 10.97], [-18.25, 11.5], [-18.15, 11.75], [-18.18, 11.82], [-18.25, 11.85], [-18.5, 11.75], [-19.03, 11.97], [-19.25, 12.5], [-19.15, 12.75], [-19.25, 13.0], [-19.03, 13.53]]]]}, "2024-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, 9.47], [-17.25, 10.0], [-17.03, 10.53], [-16.5, 10.75], [-16.25, 10.65], [-16.0, 10.75], [-15.47, 10.53], [-15.25, 10.0], [-15.47, 9.47], [-16.0, 9.25], [-16.25, 9.35], [-16.5, 9.25], [-17.03, 9.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.0701384072327187}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0449517546437956}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.185096634960587, 27.380420172800655, 27.173845302856535, 26.406797338634817]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.26764185172607, 28.644795579170875, 28.30251994996246, 26.417456712477815]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9838001504836598, 1.1805954744811427, 0.9910157099346099, 0.6543864062513194]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.513015340669483, 2.0701384072327187, 1.6231980165612754, 0.6716383986419601]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8369457672399654, 2.134825298044562, 1.8139255308493936, 1.552293263263543]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.6140142058728424, 2.4889845095231236, 2.302834730535049, 1.5891918182848142]}}