{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:02.950579", "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-08_to_2021-Aug-14_40.0_6.5"}, "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": 2021080001839}, "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 08 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 14 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 79980.90630628707}, "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": ["Ethiopia", "Kenya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa"]}, "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": 6.5}, "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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 6.03], [37.5, 6.25], [37.75, 6.15], [38.0, 6.25], [38.5, 6.04], [38.82, 6.18], [38.97, 6.53], [39.32, 6.68], [39.47, 7.03], [39.82, 7.18], [39.97, 7.53], [40.5, 7.75], [40.75, 7.65], [41.0, 7.75], [41.25, 7.65], [41.5, 7.75], [41.75, 7.65], [42.0, 7.75], [42.53, 7.53], [42.75, 7.0], [42.53, 6.47], [42.0, 6.25], [41.75, 6.35], [41.68, 6.32], [41.65, 6.25], [41.75, 6.0], [41.53, 5.47], [41.0, 5.25], [40.75, 5.35], [40.68, 5.32], [40.53, 4.97], [40.18, 4.82], [40.03, 4.47], [39.68, 4.32], [39.65, 4.25], [39.75, 4.0], [39.65, 3.75], [39.75, 3.5], [39.53, 2.97], [39.0, 2.75], [38.47, 2.97], [38.32, 3.32], [37.97, 3.47], [37.82, 3.82], [37.47, 3.97], [37.32, 4.32], [36.97, 4.47], [36.75, 5.0], [36.85, 5.25], [36.75, 5.5], [36.97, 6.03]]]]}, "2021-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 6.03], [37.5, 6.25], [37.75, 6.15], [38.0, 6.25], [38.5, 6.04], [38.82, 6.18], [38.97, 6.53], [39.32, 6.68], [39.47, 7.03], [39.82, 7.18], [39.97, 7.53], [40.5, 7.75], [40.75, 7.65], [41.0, 7.75], [41.25, 7.65], [41.5, 7.75], [41.75, 7.65], [42.0, 7.75], [42.53, 7.53], [42.75, 7.0], [42.53, 6.47], [42.0, 6.25], [41.75, 6.35], [41.68, 6.32], [41.65, 6.25], [41.75, 6.0], [41.53, 5.47], [41.0, 5.25], [40.75, 5.35], [40.68, 5.32], [40.53, 4.97], [40.18, 4.82], [40.03, 4.47], [39.68, 4.32], [39.65, 4.25], [39.75, 4.0], [39.65, 3.75], [39.75, 3.5], [39.53, 2.97], [39.0, 2.75], [38.47, 2.97], [38.32, 3.32], [37.97, 3.47], [37.82, 3.82], [37.47, 3.97], [37.32, 4.32], [36.97, 4.47], [36.75, 5.0], [36.85, 5.25], [36.75, 5.5], [36.97, 6.03]]]]}, "2021-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 6.03], [37.5, 6.25], [37.75, 6.15], [38.0, 6.25], [38.5, 6.04], [38.82, 6.18], [38.97, 6.53], [39.32, 6.68], [39.47, 7.03], [39.82, 7.18], [39.97, 7.53], [40.5, 7.75], [40.75, 7.65], [41.0, 7.75], [41.25, 7.65], [41.5, 7.75], [41.75, 7.65], [42.0, 7.75], [42.53, 7.53], [42.75, 7.0], [42.53, 6.47], [42.0, 6.25], [41.75, 6.35], [41.68, 6.32], [41.65, 6.25], [41.75, 6.0], [41.53, 5.47], [41.0, 5.25], [40.75, 5.35], [40.68, 5.32], [40.53, 4.97], [40.18, 4.82], [40.03, 4.47], [39.68, 4.32], [39.65, 4.25], [39.75, 4.0], [39.65, 3.75], [39.75, 3.5], [39.53, 2.97], [39.0, 2.75], [38.47, 2.97], [38.32, 3.32], [37.97, 3.47], [37.82, 3.82], [37.47, 3.97], [37.32, 4.32], [36.97, 4.47], [36.75, 5.0], [36.85, 5.25], [36.75, 5.5], [36.97, 6.03]]]]}, "2021-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.5, 6.25], [38.03, 6.03], [38.18, 5.68], [38.53, 5.53], [38.75, 5.0], [38.53, 4.47], [38.0, 4.25], [37.75, 4.35], [37.5, 4.25], [36.97, 4.47], [36.75, 5.0], [36.85, 5.25], [36.75, 5.5], [36.97, 6.03], [37.5, 6.25]]], [[[40.53, 7.03], [40.75, 6.5], [40.65, 6.25], [40.75, 6.0], [40.53, 5.47], [40.0, 5.25], [39.75, 5.35], [39.5, 5.25], [38.97, 5.47], [38.75, 6.0], [38.97, 6.53], [39.32, 6.68], [39.47, 7.03], [40.0, 7.25], [40.53, 7.03]]]]}, "2021-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.0, 7.25], [40.53, 7.03], [40.75, 6.5], [40.53, 5.97], [40.0, 5.75], [39.47, 5.97], [39.25, 6.5], [39.47, 7.03], [40.0, 7.25]]]]}, "2021-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.0, 7.25], [40.53, 7.03], [40.75, 6.5], [40.53, 5.97], [40.0, 5.75], [39.47, 5.97], [39.25, 6.5], [39.47, 7.03], [40.0, 7.25]]]]}, "2021-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.0, 7.25], [40.53, 7.03], [40.75, 6.5], [40.53, 5.97], [40.0, 5.75], [39.47, 5.97], [39.25, 6.5], [39.47, 7.03], [40.0, 7.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.6115992730414064}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1412235748804056}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.17728865932338, 23.726708193493664, 24.211924165836024, 22.886944928007154, 21.764816453001288, 23.272667841224177, 22.05201862212914]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.03855138873024, 28.892790287852506, 28.961110803851227, 24.25307524586509, 21.764816453001288, 23.272667841224177, 22.05201862212914]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.699282137939008, 2.2077982186479868, 2.6554026179483072, 1.5744305148632236, 1.519563794315502, 2.978216545313046, 1.717530247869547]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.200744443750807, 3.461327459771269, 3.6115992730414064, 1.7922592983816799, 1.519563794315502, 2.978216545313046, 1.717530247869547]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4797269905263768, 1.9533102538456264, 2.40362906139686, 1.4519002374104695, 1.428825259969149, 2.8362366524226545, 1.6434299799111056]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.818152935193029, 2.8809478380425384, 3.0775129950849753, 1.5372234040903419, 1.428825259969149, 2.8362366524226545, 1.6434299799111056]}}