{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:22.841574", "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": "2016-Sep-27_to_2016-Sep-30_9.5_0.0"}, "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": 2016090002726}, "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 27 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 2016"}, "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": 231743.16676282906}, "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": ["Cameroon", "Congo", "Equatorial Guinea", "Gabon"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": ["Gulf of Guinea", "South 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": 0.0}, "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": 9.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "9.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 8.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 15.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.5, 0.75], [10.03, 0.53], [10.18, 0.18], [10.25, 0.15], [10.5, 0.25], [11.03, 0.03], [11.18, -0.32], [11.53, -0.47], [11.68, -0.82], [11.75, -0.85], [12.0, -0.75], [12.5, -0.96], [12.82, -0.82], [12.97, -0.47], [13.5, -0.25], [14.03, -0.47], [14.25, -1.0], [14.03, -1.53], [13.68, -1.68], [13.53, -2.03], [13.18, -2.18], [13.03, -2.53], [12.68, -2.68], [12.53, -3.03], [12.0, -3.25], [11.47, -3.03], [11.32, -2.68], [11.25, -2.65], [11.0, -2.75], [10.75, -2.65], [10.5, -2.75], [9.97, -2.53], [9.75, -2.0], [9.85, -1.75], [9.75, -1.5], [9.85, -1.25], [9.82, -1.18], [9.75, -1.15], [9.5, -1.25], [8.97, -1.03], [8.75, -0.5], [8.85, -0.25], [8.75, 0.0], [8.97, 0.53], [9.5, 0.75]]], [[[14.47, 0.97], [14.25, 1.5], [14.47, 2.03], [15.0, 2.25], [15.53, 2.03], [15.75, 1.5], [15.53, 0.97], [15.0, 0.75], [14.47, 0.97]]]]}, "2016-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.47, 0.03], [8.82, 0.18], [8.85, 0.25], [8.75, 0.5], [8.97, 1.03], [9.38, 1.2], [9.25, 1.5], [9.35, 1.75], [9.25, 2.0], [9.47, 2.53], [9.82, 2.68], [9.97, 3.03], [10.32, 3.18], [10.47, 3.53], [11.0, 3.75], [11.25, 3.65], [11.5, 3.75], [11.75, 3.65], [12.0, 3.75], [12.25, 3.65], [12.5, 3.75], [13.03, 3.53], [13.25, 3.0], [13.03, 2.47], [12.68, 2.32], [12.65, 2.25], [12.7, 2.13], [13.0, 2.25], [13.25, 2.15], [13.32, 2.18], [13.47, 2.53], [14.0, 2.75], [14.25, 2.65], [14.5, 2.75], [15.03, 2.53], [15.18, 2.18], [15.53, 2.03], [15.75, 1.5], [15.53, 0.97], [15.0, 0.75], [14.5, 0.96], [14.0, 0.75], [13.75, 0.85], [13.68, 0.82], [13.65, 0.75], [13.68, 0.68], [14.03, 0.53], [14.25, 0.0], [14.15, -0.25], [14.25, -0.5], [14.15, -0.75], [14.18, -0.82], [14.53, -0.97], [14.75, -1.5], [14.53, -2.03], [14.0, -2.25], [13.75, -2.15], [13.5, -2.25], [13.25, -2.15], [13.18, -2.18], [13.03, -2.53], [12.68, -2.68], [12.65, -2.75], [12.75, -3.0], [12.53, -3.53], [12.0, -3.75], [11.47, -3.53], [11.25, -3.0], [11.35, -2.75], [11.32, -2.68], [11.25, -2.65], [11.0, -2.75], [10.75, -2.65], [10.5, -2.75], [10.25, -2.65], [10.0, -2.75], [9.47, -2.53], [9.32, -2.18], [8.97, -2.03], [8.82, -1.68], [8.47, -1.53], [8.25, -1.0], [8.35, -0.75], [8.25, -0.5], [8.47, 0.03]], [[12.25, -0.5], [12.35, -0.25], [12.32, -0.18], [12.25, -0.15], [12.0, -0.25], [11.7, -0.13], [11.65, -0.25], [11.68, -0.32], [12.03, -0.47], [12.18, -0.82], [12.3, -0.87], [12.35, -0.75], [12.25, -0.5]]]]}, "2016-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.47, 0.03], [8.82, 0.18], [8.85, 0.25], [8.75, 0.5], [8.97, 1.03], [9.38, 1.2], [9.25, 1.5], [9.35, 1.75], [9.25, 2.0], [9.47, 2.53], [9.82, 2.68], [9.97, 3.03], [10.32, 3.18], [10.47, 3.53], [11.0, 3.75], [11.25, 3.65], [11.5, 3.75], [11.75, 3.65], [12.0, 3.75], [12.25, 3.65], [12.5, 3.75], [13.03, 3.53], [13.25, 3.0], [13.03, 2.47], [12.68, 2.32], [12.65, 2.25], [12.7, 2.13], [13.0, 2.25], [13.25, 2.15], [13.32, 2.18], [13.47, 2.53], [14.0, 2.75], [14.25, 2.65], [14.5, 2.75], [15.03, 2.53], [15.18, 2.18], [15.53, 2.03], [15.75, 1.5], [15.53, 0.97], [15.0, 0.75], [14.5, 0.96], [14.0, 0.75], [13.75, 0.85], [13.68, 0.82], [13.65, 0.75], [13.68, 0.68], [14.03, 0.53], [14.25, 0.0], [14.15, -0.25], [14.25, -0.5], [14.15, -0.75], [14.18, -0.82], [14.53, -0.97], [14.75, -1.5], [14.53, -2.03], [14.0, -2.25], [13.75, -2.15], [13.5, -2.25], [13.25, -2.15], [13.18, -2.18], [13.03, -2.53], [12.68, -2.68], [12.65, -2.75], [12.75, -3.0], [12.53, -3.53], [12.0, -3.75], [11.47, -3.53], [11.25, -3.0], [11.35, -2.75], [11.32, -2.68], [11.25, -2.65], [11.0, -2.75], [10.75, -2.65], [10.5, -2.75], [10.25, -2.65], [10.0, -2.75], [9.47, -2.53], [9.32, -2.18], [8.97, -2.03], [8.82, -1.68], [8.47, -1.53], [8.25, -1.0], [8.35, -0.75], [8.25, -0.5], [8.47, 0.03]], [[12.25, -0.5], [12.35, -0.25], [12.32, -0.18], [12.25, -0.15], [12.0, -0.25], [11.7, -0.13], [11.65, -0.25], [11.68, -0.32], [12.03, -0.47], [12.18, -0.82], [12.3, -0.87], [12.35, -0.75], [12.25, -0.5]]]]}, "2016-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.47, 0.03], [8.82, 0.18], [8.85, 0.25], [8.75, 0.5], [8.97, 1.03], [9.38, 1.2], [9.25, 1.5], [9.35, 1.75], [9.25, 2.0], [9.47, 2.53], [9.82, 2.68], [9.97, 3.03], [10.32, 3.18], [10.47, 3.53], [11.0, 3.75], [11.25, 3.65], [11.5, 3.75], [11.75, 3.65], [12.0, 3.75], [12.25, 3.65], [12.5, 3.75], [13.03, 3.53], [13.25, 3.0], [13.03, 2.47], [12.68, 2.32], [12.65, 2.25], [12.7, 2.13], [13.0, 2.25], [13.25, 2.15], [13.32, 2.18], [13.47, 2.53], [14.0, 2.75], [14.25, 2.65], [14.5, 2.75], [15.03, 2.53], [15.18, 2.18], [15.53, 2.03], [15.75, 1.5], [15.53, 0.97], [15.0, 0.75], [14.5, 0.96], [14.0, 0.75], [13.75, 0.85], [13.68, 0.82], [13.65, 0.75], [13.68, 0.68], [14.03, 0.53], [14.25, 0.0], [14.15, -0.25], [14.25, -0.5], [14.13, -0.8], [14.53, -0.97], [14.75, -1.5], [14.53, -2.03], [14.0, -2.25], [13.75, -2.15], [13.5, -2.25], [13.25, -2.15], [13.0, -2.25], [12.47, -2.03], [12.25, -1.5], [12.35, -1.25], [12.25, -1.0], [12.03, -1.53], [11.63, -1.7], [11.75, -2.0], [11.57, -2.43], [12.0, -2.25], [12.53, -2.47], [12.75, -3.0], [12.53, -3.53], [12.0, -3.75], [11.47, -3.53], [11.25, -3.0], [11.43, -2.57], [11.0, -2.75], [10.75, -2.65], [10.5, -2.75], [10.25, -2.65], [10.0, -2.75], [9.47, -2.53], [9.32, -2.18], [8.97, -2.03], [8.82, -1.68], [8.47, -1.53], [8.25, -1.0], [8.35, -0.75], [8.25, -0.5], [8.47, 0.03]], [[12.35, -0.75], [12.25, -0.5], [12.35, -0.25], [12.32, -0.18], [12.25, -0.15], [12.0, -0.25], [11.7, -0.13], [11.65, -0.25], [11.68, -0.32], [12.03, -0.47], [12.25, -1.0], [12.35, -0.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.8323370350397}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4861330514975823}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.36072951543224, 25.556096019702863, 25.94464303155985, 25.467530477390312]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.78298943845732, 27.500165359771643, 28.27329768145819, 27.20945893399238]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0564602369407823, 1.4422065309063692, 1.820573114550391, 1.2827788394372768]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2315127896618492, 2.1436087152062555, 2.8323370350397, 2.7154203209077536]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.412245088348374, 2.0062584257724483, 2.500656868150509, 1.6955759410534674]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6171915510537973, 2.9555485564674866, 3.4871207191471663, 3.023062379143461]}}