{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:05.828821", "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": "2021-Aug-14_to_2021-Aug-17_19.5_5.0"}, "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": 2021080002311}, "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 14 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 17 2021"}, "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": 92294.42453682574}, "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": ["Central African Republic", "Congo, The Democratic Republic of the"]}, "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": 5.0}, "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": 19.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "19.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[20.18, 4.18], [20.53, 4.03], [20.75, 3.5], [20.53, 2.97], [20.0, 2.75], [19.47, 2.97], [19.32, 3.32], [19.25, 3.35], [19.0, 3.25], [18.47, 3.47], [18.32, 3.82], [18.25, 3.85], [18.0, 3.75], [17.75, 3.85], [17.5, 3.75], [16.97, 3.97], [16.75, 4.5], [16.97, 5.03], [17.32, 5.18], [17.35, 5.25], [17.25, 5.5], [17.47, 6.03], [17.82, 6.18], [17.97, 6.53], [18.5, 6.75], [18.75, 6.65], [19.0, 6.75], [19.3, 6.63], [19.46, 7.0], [19.25, 7.5], [19.47, 8.03], [19.82, 8.18], [19.97, 8.53], [20.5, 8.75], [21.03, 8.53], [21.25, 8.0], [21.15, 7.75], [21.25, 7.5], [21.15, 7.25], [21.25, 7.0], [21.15, 6.75], [21.25, 6.5], [21.15, 6.25], [21.25, 6.0], [21.15, 5.75], [21.25, 5.5], [21.15, 5.25], [21.25, 5.0], [21.03, 4.47], [20.5, 4.25], [20.25, 4.35], [20.18, 4.32], [20.15, 4.25], [20.18, 4.18]]]]}}, "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": {"2021-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.75, 4.5], [18.85, 4.75], [18.75, 5.0], [18.97, 5.53], [19.5, 5.75], [20.03, 5.53], [20.25, 5.0], [20.15, 4.75], [20.25, 4.5], [20.15, 4.25], [20.18, 4.18], [20.53, 4.03], [20.75, 3.5], [20.53, 2.97], [20.0, 2.75], [19.47, 2.97], [19.32, 3.32], [18.97, 3.47], [18.75, 4.0], [18.85, 4.25], [18.75, 4.5]]]]}, "2021-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.35, 5.25], [17.25, 5.5], [17.47, 6.03], [17.82, 6.18], [17.97, 6.53], [18.5, 6.75], [18.75, 6.65], [19.0, 6.75], [19.3, 6.63], [19.46, 7.0], [19.25, 7.5], [19.47, 8.03], [19.82, 8.18], [19.97, 8.53], [20.5, 8.75], [21.03, 8.53], [21.25, 8.0], [21.15, 7.75], [21.25, 7.5], [21.15, 7.25], [21.25, 7.0], [21.15, 6.75], [21.25, 6.5], [21.15, 6.25], [21.25, 6.0], [21.15, 5.75], [21.25, 5.5], [21.15, 5.25], [21.25, 5.0], [21.03, 4.47], [20.5, 4.25], [20.25, 4.35], [20.18, 4.32], [20.15, 4.25], [20.18, 4.18], [20.53, 4.03], [20.75, 3.5], [20.53, 2.97], [20.0, 2.75], [19.47, 2.97], [19.32, 3.32], [19.25, 3.35], [19.0, 3.25], [18.47, 3.47], [18.32, 3.82], [18.25, 3.85], [18.0, 3.75], [17.75, 3.85], [17.5, 3.75], [16.97, 3.97], [16.75, 4.5], [16.97, 5.03], [17.32, 5.18], [17.35, 5.25]]]]}, "2021-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.35, 5.25], [17.25, 5.5], [17.47, 6.03], [17.82, 6.18], [17.97, 6.53], [18.5, 6.75], [18.75, 6.65], [19.0, 6.75], [19.3, 6.63], [19.46, 7.0], [19.25, 7.5], [19.47, 8.03], [19.82, 8.18], [19.97, 8.53], [20.5, 8.75], [21.03, 8.53], [21.25, 8.0], [21.15, 7.75], [21.25, 7.5], [21.15, 7.25], [21.25, 7.0], [21.15, 6.75], [21.25, 6.5], [21.15, 6.25], [21.25, 6.0], [21.15, 5.75], [21.25, 5.5], [21.15, 5.25], [21.25, 5.0], [21.03, 4.47], [20.5, 4.25], [20.25, 4.35], [20.18, 4.32], [20.15, 4.25], [20.18, 4.18], [20.53, 4.03], [20.75, 3.5], [20.53, 2.97], [20.0, 2.75], [19.47, 2.97], [19.32, 3.32], [19.25, 3.35], [19.0, 3.25], [18.47, 3.47], [18.32, 3.82], [18.25, 3.85], [18.0, 3.75], [17.75, 3.85], [17.5, 3.75], [16.97, 3.97], [16.75, 4.5], [16.97, 5.03], [17.32, 5.18], [17.35, 5.25]]]]}, "2021-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.35, 5.25], [17.25, 5.5], [17.47, 6.03], [17.82, 6.18], [17.97, 6.53], [18.5, 6.75], [18.75, 6.65], [19.0, 6.75], [19.3, 6.63], [19.46, 7.0], [19.25, 7.5], [19.47, 8.03], [19.82, 8.18], [19.97, 8.53], [20.5, 8.75], [21.03, 8.53], [21.25, 8.0], [21.15, 7.75], [21.25, 7.5], [21.15, 7.25], [21.25, 7.0], [21.15, 6.75], [21.25, 6.5], [21.15, 6.25], [21.25, 6.0], [21.15, 5.75], [21.25, 5.5], [21.15, 5.25], [21.25, 5.0], [21.03, 4.47], [20.5, 4.25], [20.25, 4.35], [20.0, 4.25], [19.75, 4.35], [19.68, 4.32], [19.65, 4.25], [19.75, 4.0], [19.53, 3.47], [19.0, 3.25], [18.47, 3.47], [18.32, 3.82], [18.25, 3.85], [18.0, 3.75], [17.75, 3.85], [17.5, 3.75], [16.97, 3.97], [16.75, 4.5], [16.97, 5.03], [17.32, 5.18], [17.35, 5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.389439649495273}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4969101476730227}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.785426819128645, 25.952464080696984, 26.149873571655064, 25.850266568097595]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.086129090217526, 26.70805378737606, 27.253577907510362, 26.575092783172522]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2021589055407702, 1.4705890063346885, 1.7001043974729972, 1.3440513222907933]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2867463874071063, 1.811754593869182, 2.389439649495273, 1.6085274286548952]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3792103720020155, 1.613320988820749, 1.8522121555271265, 1.4872351995291775]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.440313450440521, 1.9028285783154695, 2.5260766385222744, 1.9305200753791885]}}