{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:29.583251", "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-07_to_2022-Aug-09_345.0_22.5"}, "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": 2022080001862}, "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 07 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 2022"}, "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": 60092.71532942788}, "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": ["Mauritania"]}, "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": 22.5}, "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": 345.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 23.0], [-15.53, 23.53], [-15.0, 23.75], [-14.75, 23.65], [-14.5, 23.75], [-14.25, 23.65], [-14.0, 23.75], [-13.47, 23.53], [-13.32, 23.18], [-13.25, 23.15], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-11.97, 23.03], [-11.82, 22.68], [-11.75, 22.65], [-11.5, 22.75], [-11.25, 22.65], [-11.0, 22.75], [-10.47, 22.53], [-10.25, 22.0], [-10.47, 21.47], [-10.82, 21.32], [-10.97, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-13.03, 20.97], [-13.18, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-14.75, 21.35], [-15.0, 21.25], [-15.53, 21.47], [-15.75, 22.0], [-15.65, 22.25], [-15.75, 22.5], [-15.65, 22.75], [-15.75, 23.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 22.5], [-15.649999999999977, 22.75], [-15.75, 23.0], [-15.529999999999973, 23.53], [-15.0, 23.75], [-14.75, 23.65], [-14.5, 23.75], [-14.25, 23.65], [-14.0, 23.75], [-13.470000000000027, 23.53], [-13.319999999999993, 23.18], [-13.25, 23.15], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-11.970000000000027, 23.03], [-11.819999999999993, 22.68], [-11.75, 22.65], [-11.5, 22.75], [-11.25, 22.65], [-11.0, 22.75], [-10.470000000000027, 22.53], [-10.25, 22.0], [-10.470000000000027, 21.47], [-10.819999999999993, 21.32], [-10.970000000000027, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-13.029999999999973, 20.97], [-13.180000000000007, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-14.75, 21.35], [-15.0, 21.25], [-15.529999999999973, 21.47], [-15.75, 22.0], [-15.649999999999977, 22.25], [-15.75, 22.5]]]]}, "2022-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 22.5], [-15.649999999999977, 22.75], [-15.75, 23.0], [-15.529999999999973, 23.53], [-15.0, 23.75], [-14.75, 23.65], [-14.5, 23.75], [-14.25, 23.65], [-14.0, 23.75], [-13.470000000000027, 23.53], [-13.319999999999993, 23.18], [-13.25, 23.15], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-11.970000000000027, 23.03], [-11.819999999999993, 22.68], [-11.75, 22.65], [-11.5, 22.75], [-11.25, 22.65], [-11.0, 22.75], [-10.470000000000027, 22.53], [-10.25, 22.0], [-10.470000000000027, 21.47], [-10.819999999999993, 21.32], [-10.970000000000027, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-13.029999999999973, 20.97], [-13.180000000000007, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-14.75, 21.35], [-15.0, 21.25], [-15.529999999999973, 21.47], [-15.75, 22.0], [-15.649999999999977, 22.25], [-15.75, 22.5]]]]}, "2022-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 22.5], [-15.649999999999977, 22.75], [-15.75, 23.0], [-15.529999999999973, 23.53], [-15.0, 23.75], [-14.75, 23.65], [-14.5, 23.75], [-14.25, 23.65], [-14.0, 23.75], [-13.470000000000027, 23.53], [-13.319999999999993, 23.18], [-13.25, 23.15], [-13.0, 23.25], [-12.75, 23.15], [-12.5, 23.25], [-11.970000000000027, 23.03], [-11.819999999999993, 22.68], [-11.75, 22.65], [-11.5, 22.75], [-11.25, 22.65], [-11.0, 22.75], [-10.470000000000027, 22.53], [-10.25, 22.0], [-10.470000000000027, 21.47], [-10.819999999999993, 21.32], [-10.970000000000027, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-12.0, 20.75], [-12.25, 20.85], [-12.5, 20.75], [-13.029999999999973, 20.97], [-13.180000000000007, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-14.75, 21.35], [-15.0, 21.25], [-15.529999999999973, 21.47], [-15.75, 22.0], [-15.649999999999977, 22.25], [-15.75, 22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.148507385131609}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7994550530971827}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.335265859117555, 37.6366158411372, 36.920751616509676]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.94038006696371, 38.361774267515955, 38.038452919765064]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.783799845330063, 4.141522664098605, 3.473042649862881]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.020060668640895, 7.148507385131609, 5.3381575751360515]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7175606562848342, 1.8226544535540725, 1.5047092132691273]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.123682433958515, 2.6243578115560156, 2.0490325569292875]}}