{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:27.967610", "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": "2022-Aug-05_to_2022-Aug-08_350.0_7.0"}, "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": 2022080001748}, "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 05 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 08 2022"}, "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": 52127.30253731155}, "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": ["C\u00f4te d'Ivoire", "Guinea", "Liberia"]}, "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": 7.0}, "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": 350.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.18, 8.18], [-9.03, 8.53], [-8.5, 8.75], [-8.25, 8.65], [-8.18, 8.68], [-8.03, 9.03], [-7.5, 9.25], [-6.97, 9.03], [-6.75, 8.5], [-6.97, 7.97], [-7.32, 7.82], [-7.47, 7.47], [-7.82, 7.32], [-7.97, 6.97], [-8.32, 6.82], [-8.35, 6.75], [-8.25, 6.5], [-8.47, 5.97], [-9.0, 5.75], [-9.25, 5.85], [-9.5, 5.75], [-9.75, 5.85], [-10.0, 5.75], [-10.25, 5.85], [-10.5, 5.75], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0], [-11.53, 7.53], [-11.18, 7.68], [-11.03, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.75, 8.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.75, 7.5], [-10.529999999999973, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-8.970000000000027, 8.03], [-8.819999999999993, 7.68], [-8.470000000000027, 7.53], [-8.25, 7.0], [-8.350000000000023, 6.75], [-8.25, 6.5], [-8.470000000000027, 5.97], [-9.0, 5.75], [-9.25, 5.85], [-9.5, 5.75], [-10.029999999999973, 5.97], [-10.180000000000007, 6.32], [-10.529999999999973, 6.47], [-10.75, 7.0], [-10.649999999999977, 7.25], [-10.75, 7.5]]]]}, "2022-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.529999999999973, 6.47], [-11.75, 7.0], [-11.529999999999973, 7.53], [-11.180000000000007, 7.68], [-11.029999999999973, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.180000000000007, 8.18], [-9.029999999999973, 8.53], [-8.5, 8.75], [-8.25, 8.65], [-8.180000000000007, 8.68], [-8.029999999999973, 9.03], [-7.5, 9.25], [-6.970000000000027, 9.03], [-6.75, 8.5], [-6.970000000000027, 7.97], [-7.319999999999993, 7.82], [-7.470000000000027, 7.47], [-7.819999999999993, 7.32], [-7.970000000000027, 6.97], [-8.319999999999993, 6.82], [-8.350000000000023, 6.75], [-8.25, 6.5], [-8.470000000000027, 5.97], [-9.0, 5.75], [-9.25, 5.85], [-9.5, 5.75], [-9.75, 5.85], [-10.0, 5.75], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.180000000000007, 6.32], [-11.529999999999973, 6.47]]]]}, "2022-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.529999999999973, 6.47], [-11.75, 7.0], [-11.529999999999973, 7.53], [-11.180000000000007, 7.68], [-11.029999999999973, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.180000000000007, 8.18], [-9.029999999999973, 8.53], [-8.5, 8.75], [-8.25, 8.65], [-8.180000000000007, 8.68], [-8.029999999999973, 9.03], [-7.5, 9.25], [-6.970000000000027, 9.03], [-6.75, 8.5], [-6.970000000000027, 7.97], [-7.319999999999993, 7.82], [-7.470000000000027, 7.47], [-7.819999999999993, 7.32], [-7.970000000000027, 6.97], [-8.319999999999993, 6.82], [-8.350000000000023, 6.75], [-8.25, 6.5], [-8.470000000000027, 5.97], [-9.0, 5.75], [-9.25, 5.85], [-9.5, 5.75], [-9.75, 5.85], [-10.0, 5.75], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.180000000000007, 6.32], [-11.529999999999973, 6.47]]]]}, "2022-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.529999999999973, 6.47], [-11.75, 7.0], [-11.529999999999973, 7.53], [-11.180000000000007, 7.68], [-11.029999999999973, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.180000000000007, 8.18], [-9.029999999999973, 8.53], [-8.5, 8.75], [-8.25, 8.65], [-8.180000000000007, 8.68], [-8.029999999999973, 9.03], [-7.5, 9.25], [-6.970000000000027, 9.03], [-6.75, 8.5], [-6.970000000000027, 7.97], [-7.319999999999993, 7.82], [-7.470000000000027, 7.47], [-7.819999999999993, 7.32], [-7.970000000000027, 6.97], [-8.5, 6.75], [-8.75, 6.85], [-9.0, 6.75], [-9.25, 6.85], [-9.319999999999993, 6.82], [-9.350000000000023, 6.75], [-9.25, 6.5], [-9.470000000000027, 5.97], [-10.0, 5.75], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.180000000000007, 6.32], [-11.529999999999973, 6.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.307913758371285}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.223218692197804}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.51293264929342, 24.619057860389375, 25.053015892954136, 24.60803385475731]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.807321918196465, 25.47842450393597, 26.570771479231553, 25.790726378951774]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9390780895497528, 1.1055601564172581, 1.534316984672778, 1.1232577964078876]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0323987885020074, 1.487434756222342, 2.307913758371285, 1.5378863627360033]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4670455718882958, 1.693191142763663, 2.257244806135655, 1.6198675425526436]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6759326986717056, 2.456602934143638, 2.9725803626767826, 1.9577178036318585]}}