{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:27.203191", "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-Apr-01_to_2024-Apr-03_13.5_1.5"}, "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": 2024040000801}, "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": "April 01 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 03 2024"}, "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": 55618.336093650214}, "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", "Gabon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": 1.5}, "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": 13.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 15.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.32, 2.68], [13.47, 3.03], [14.0, 3.25], [14.53, 3.03], [14.68, 2.68], [14.75, 2.65], [15.0, 2.75], [15.53, 2.53], [15.75, 2.0], [15.53, 1.47], [15.18, 1.32], [15.15, 1.25], [15.25, 1.0], [15.03, 0.47], [14.5, 0.25], [14.25, 0.35], [14.18, 0.32], [14.15, 0.25], [14.25, 0.0], [14.03, -0.53], [13.5, -0.75], [13.25, -0.65], [13.0, -0.75], [12.47, -0.53], [12.25, 0.0], [12.47, 0.53], [12.82, 0.68], [12.85, 0.75], [12.82, 0.82], [12.75, 0.85], [12.5, 0.75], [11.97, 0.97], [11.75, 1.5], [11.85, 1.75], [11.75, 2.0], [11.97, 2.53], [12.5, 2.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.32, 2.68], [13.47, 3.03], [14.0, 3.25], [14.53, 3.03], [14.68, 2.68], [14.75, 2.65], [15.0, 2.75], [15.53, 2.53], [15.75, 2.0], [15.53, 1.47], [15.18, 1.32], [15.15, 1.25], [15.25, 1.0], [15.03, 0.47], [14.5, 0.25], [14.25, 0.35], [14.18, 0.32], [14.15, 0.25], [14.25, 0.0], [14.03, -0.53], [13.5, -0.75], [13.25, -0.65], [13.0, -0.75], [12.47, -0.53], [12.25, 0.0], [12.47, 0.53], [12.82, 0.68], [12.85, 0.75], [12.82, 0.82], [12.75, 0.85], [12.5, 0.75], [11.97, 0.97], [11.75, 1.5], [11.85, 1.75], [11.75, 2.0]]]]}, "2024-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.32, 2.68], [13.47, 3.03], [14.0, 3.25], [14.53, 3.03], [14.68, 2.68], [14.75, 2.65], [15.0, 2.75], [15.53, 2.53], [15.75, 2.0], [15.53, 1.47], [15.18, 1.32], [15.15, 1.25], [15.25, 1.0], [15.03, 0.47], [14.5, 0.25], [14.25, 0.35], [14.18, 0.32], [14.15, 0.25], [14.25, 0.0], [14.03, -0.53], [13.5, -0.75], [13.25, -0.65], [13.0, -0.75], [12.47, -0.53], [12.25, 0.0], [12.47, 0.53], [12.82, 0.68], [12.85, 0.75], [12.82, 0.82], [12.75, 0.85], [12.5, 0.75], [11.97, 0.97], [11.75, 1.5], [11.85, 1.75], [11.75, 2.0]]]]}, "2024-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.32, 2.68], [13.47, 3.03], [14.0, 3.25], [14.53, 3.03], [14.68, 2.68], [14.75, 2.65], [15.0, 2.75], [15.53, 2.53], [15.75, 2.0], [15.53, 1.47], [15.18, 1.32], [15.15, 1.25], [15.25, 1.0], [15.03, 0.47], [14.5, 0.25], [14.25, 0.35], [14.18, 0.32], [14.15, 0.25], [14.25, 0.0], [14.03, -0.53], [13.5, -0.75], [13.25, -0.65], [13.0, -0.75], [12.47, -0.53], [12.25, 0.0], [12.47, 0.53], [12.82, 0.68], [12.85, 0.75], [12.82, 0.82], [12.75, 0.85], [12.5, 0.75], [11.97, 0.97], [11.75, 1.5], [11.85, 1.75], [11.75, 2.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1487152961648235}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0711605639589634}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.81488605633325, 27.8734265024396, 26.775546118781108]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.57908872754234, 28.96179482838096, 27.504433353532306]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6735323517514, 2.75905590680523, 1.7808934333202602]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1197748622709582, 3.1487152961648235, 2.16428478811315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5510234338031583, 2.564868650279481, 1.6007868740562725]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9008155624749175, 3.1624488063108815, 1.943666006422155]}}