{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:03.579867", "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-Sep-02_to_2024-Sep-04_348.0_11.5"}, "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": 2024090001002}, "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 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 04 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": 75886.36050717167}, "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", "Mali"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 11.5}, "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": 348.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.97, 12.53], [-9.8, 12.12], [-9.5, 12.25], [-8.97, 12.03], [-8.82, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.97, 11.53], [-7.82, 11.18], [-7.47, 11.03], [-7.25, 10.5], [-7.47, 9.97], [-7.82, 9.82], [-7.97, 9.47], [-8.32, 9.32], [-8.47, 8.97], [-9.0, 8.75], [-9.5, 8.96], [-10.0, 8.75], [-10.53, 8.97], [-10.75, 9.5], [-10.65, 9.75], [-10.75, 10.0], [-10.65, 10.25], [-10.68, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.53, 10.97], [-12.75, 11.5], [-12.65, 11.75], [-12.75, 12.0], [-12.53, 12.53], [-12.0, 12.75]]]]}}, "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": {"2024-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.0], [-12.529999999999973, 12.53], [-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.970000000000027, 12.53], [-9.800000000000011, 12.12], [-9.5, 12.25], [-8.970000000000027, 12.03], [-8.819999999999993, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.970000000000027, 11.53], [-7.819999999999993, 11.18], [-7.470000000000027, 11.03], [-7.25, 10.5], [-7.470000000000027, 9.97], [-7.819999999999993, 9.82], [-7.970000000000027, 9.47], [-8.319999999999993, 9.32], [-8.470000000000027, 8.97], [-9.0, 8.75], [-9.5, 8.96], [-10.0, 8.75], [-10.529999999999973, 8.97], [-10.75, 9.5], [-10.649999999999977, 9.75], [-10.75, 10.0], [-10.649999999999977, 10.25], [-10.680000000000007, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.529999999999973, 10.47], [-11.680000000000007, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.529999999999973, 10.97], [-12.75, 11.5], [-12.649999999999977, 11.75], [-12.75, 12.0]]]]}, "2024-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.0], [-12.529999999999973, 12.53], [-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.970000000000027, 12.53], [-9.800000000000011, 12.12], [-9.5, 12.25], [-8.970000000000027, 12.03], [-8.819999999999993, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.970000000000027, 11.53], [-7.819999999999993, 11.18], [-7.470000000000027, 11.03], [-7.25, 10.5], [-7.470000000000027, 9.97], [-7.819999999999993, 9.82], [-7.970000000000027, 9.47], [-8.319999999999993, 9.32], [-8.470000000000027, 8.97], [-9.0, 8.75], [-9.5, 8.96], [-10.0, 8.75], [-10.529999999999973, 8.97], [-10.75, 9.5], [-10.649999999999977, 9.75], [-10.75, 10.0], [-10.649999999999977, 10.25], [-10.680000000000007, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.529999999999973, 10.47], [-11.680000000000007, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.529999999999973, 10.97], [-12.75, 11.5], [-12.649999999999977, 11.75], [-12.75, 12.0]]]]}, "2024-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.0], [-12.529999999999973, 12.53], [-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.970000000000027, 12.53], [-9.800000000000011, 12.12], [-9.5, 12.25], [-8.970000000000027, 12.03], [-8.819999999999993, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.970000000000027, 11.53], [-7.819999999999993, 11.18], [-7.470000000000027, 11.03], [-7.25, 10.5], [-7.470000000000027, 9.97], [-7.819999999999993, 9.82], [-7.970000000000027, 9.47], [-8.319999999999993, 9.32], [-8.470000000000027, 8.97], [-9.0, 8.75], [-9.5, 8.96], [-10.0, 8.75], [-10.529999999999973, 8.97], [-10.75, 9.5], [-10.649999999999977, 9.75], [-10.75, 10.0], [-10.649999999999977, 10.25], [-10.680000000000007, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.529999999999973, 10.47], [-11.680000000000007, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.529999999999973, 10.97], [-12.75, 11.5], [-12.649999999999977, 11.75], [-12.75, 12.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2086277241442076}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.561983967757689}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.92890319824221, 26.360097503662132, 26.035088195800768]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.63080749511721, 27.023427581787132, 26.55254262288412]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4036988435231432, 1.8261607667027737, 1.4560922930471498]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7983297221575754, 2.2086277241442076, 2.0476579526462615]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5215811831309247, 2.0451839653712494, 1.6297344270367566]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.860732558765935, 2.591564668519459, 2.331133620487996]}}