{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:59.258978", "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": "2017-Sep-21_to_2017-Sep-23_28.0_-2.0"}, "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": 2017090002353}, "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 21 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 74169.39304093186}, "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": ["Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -2.0}, "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": 28.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.85, 0.25], [26.75, 0.5], [26.85, 0.75], [26.75, 1.0], [26.97, 1.53], [27.5, 1.75], [27.75, 1.65], [28.0, 1.75], [28.25, 1.65], [28.5, 1.75], [29.03, 1.53], [29.18, 1.18], [29.53, 1.03], [29.75, 0.5], [29.65, 0.25], [29.75, 0.0], [29.65, -0.25], [29.68, -0.32], [30.03, -0.47], [30.25, -1.0], [30.03, -1.53], [29.5, -1.75], [29.07, -1.57], [29.25, -2.0], [29.15, -2.25], [29.25, -2.5], [29.03, -3.03], [28.5, -3.25], [28.25, -3.15], [28.0, -3.25], [27.47, -3.03], [27.25, -2.5], [27.35, -2.25], [27.32, -2.18], [27.25, -2.15], [27.0, -2.25], [26.47, -2.03], [26.25, -1.5], [26.47, -0.97], [26.88, -0.8], [26.75, -0.5], [26.85, -0.25], [26.75, 0.0], [26.85, 0.25]]]]}, "2017-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.85, 0.25], [26.75, 0.5], [26.85, 0.75], [26.75, 1.0], [26.97, 1.53], [27.5, 1.75], [27.75, 1.65], [28.0, 1.75], [28.25, 1.65], [28.5, 1.75], [29.03, 1.53], [29.18, 1.18], [29.53, 1.03], [29.75, 0.5], [29.65, 0.25], [29.75, 0.0], [29.65, -0.25], [29.68, -0.32], [30.03, -0.47], [30.25, -1.0], [30.03, -1.53], [29.5, -1.75], [29.07, -1.57], [29.25, -2.0], [29.15, -2.25], [29.25, -2.5], [29.03, -3.03], [28.5, -3.25], [28.25, -3.15], [28.0, -3.25], [27.47, -3.03], [27.25, -2.5], [27.35, -2.25], [27.32, -2.18], [27.25, -2.15], [27.0, -2.25], [26.47, -2.03], [26.25, -1.5], [26.47, -0.97], [26.88, -0.8], [26.75, -0.5], [26.85, -0.25], [26.75, 0.0], [26.85, 0.25]]]]}, "2017-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.85, 0.25], [26.75, 0.5], [26.85, 0.75], [26.75, 1.0], [26.97, 1.53], [27.5, 1.75], [27.75, 1.65], [28.0, 1.75], [28.25, 1.65], [28.5, 1.75], [29.03, 1.53], [29.18, 1.18], [29.53, 1.03], [29.75, 0.5], [29.65, 0.25], [29.75, 0.0], [29.65, -0.25], [29.68, -0.32], [30.03, -0.47], [30.25, -1.0], [30.03, -1.53], [29.5, -1.75], [29.07, -1.57], [29.25, -2.0], [29.15, -2.25], [29.25, -2.5], [29.03, -3.03], [28.5, -3.25], [28.25, -3.15], [28.0, -3.25], [27.47, -3.03], [27.25, -2.5], [27.35, -2.25], [27.32, -2.18], [27.25, -2.15], [27.0, -2.25], [26.47, -2.03], [26.25, -1.5], [26.47, -0.97], [26.88, -0.8], [26.75, -0.5], [26.85, -0.25], [26.75, 0.0], [26.85, 0.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.587106297489356}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6960631495657073}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.229339588813275, 23.628570143824675, 23.335803311255233]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.854580419463332, 25.1221146438657, 25.083549698369836]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5154332164898747, 1.9142115582518808, 1.6585446739553664]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0061037151049845, 2.587106297489356, 1.971821849610194]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6269814464771557, 2.084056844192089, 1.7988877312565095]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2238903298401604, 2.8969830950618034, 2.3278009040432135]}}