{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:17.076998", "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": "2011-Apr-10_to_2011-Apr-15_36.5_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": 2011040002009}, "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": "April 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 15 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 87946.3716075441}, "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", "Sudan"]}, "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": 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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.0, 11.25], [35.3, 11.13], [35.47, 11.53], [35.82, 11.68], [35.85, 11.75], [35.75, 12.0], [35.85, 12.25], [35.75, 12.5], [35.97, 13.03], [36.5, 13.25], [36.75, 13.15], [37.0, 13.25], [37.53, 13.03], [37.75, 12.5], [37.54, 12.0], [37.75, 11.5], [37.65, 11.25], [37.75, 11.0], [37.65, 10.75], [37.68, 10.68], [38.03, 10.53], [38.25, 10.0], [38.03, 9.47], [37.5, 9.25], [37.2, 9.38], [37.03, 8.97], [36.5, 8.75], [36.25, 8.85], [36.0, 8.75], [35.47, 8.97], [35.32, 9.32], [35.25, 9.35], [35.0, 9.25], [34.75, 9.35], [34.5, 9.25], [33.97, 9.47], [33.75, 10.0], [33.97, 10.53], [34.32, 10.68], [34.47, 11.03], [35.0, 11.25]]]]}, "2011-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, 11.5], [34.35, 11.75], [34.25, 12.0], [34.47, 12.53], [35.0, 12.75], [35.25, 12.65], [35.32, 12.68], [35.35, 12.75], [35.25, 13.0], [35.47, 13.53], [36.0, 13.75], [36.53, 13.53], [36.68, 13.18], [36.75, 13.15], [37.0, 13.25], [37.53, 13.03], [37.75, 12.5], [37.63, 12.2], [38.03, 12.03], [38.25, 11.5], [38.03, 10.97], [37.68, 10.82], [37.65, 10.75], [37.68, 10.68], [38.03, 10.53], [38.25, 10.0], [38.03, 9.47], [37.5, 9.25], [37.2, 9.38], [37.03, 8.97], [36.5, 8.75], [36.25, 8.85], [36.0, 8.75], [35.47, 8.97], [35.32, 9.32], [35.25, 9.35], [35.0, 9.25], [34.75, 9.35], [34.5, 9.25], [33.97, 9.47], [33.75, 10.0], [33.97, 10.53], [34.32, 10.68], [34.46, 11.0], [34.25, 11.5]]]]}, "2011-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, 11.5], [34.35, 11.75], [34.25, 12.0], [34.47, 12.53], [35.0, 12.75], [35.25, 12.65], [35.32, 12.68], [35.35, 12.75], [35.25, 13.0], [35.47, 13.53], [36.0, 13.75], [36.53, 13.53], [36.68, 13.18], [36.75, 13.15], [37.0, 13.25], [37.53, 13.03], [37.75, 12.5], [37.63, 12.2], [38.03, 12.03], [38.18, 11.68], [38.53, 11.53], [38.75, 11.0], [38.53, 10.47], [38.13, 10.3], [38.25, 10.0], [38.03, 9.47], [37.5, 9.25], [37.2, 9.38], [37.03, 8.97], [36.5, 8.75], [36.25, 8.85], [36.0, 8.75], [35.47, 8.97], [35.32, 9.32], [35.25, 9.35], [35.0, 9.25], [34.75, 9.35], [34.5, 9.25], [33.97, 9.47], [33.75, 10.0], [33.97, 10.53], [34.32, 10.68], [34.46, 11.0], [34.25, 11.5]]]]}, "2011-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 12.53], [35.0, 12.75], [35.25, 12.65], [35.32, 12.68], [35.35, 12.75], [35.25, 13.0], [35.47, 13.53], [36.0, 13.75], [36.53, 13.53], [36.75, 13.0], [36.65, 12.75], [36.68, 12.68], [37.03, 12.53], [37.2, 12.13], [37.5, 12.25], [37.75, 12.15], [38.0, 12.25], [38.53, 12.03], [38.75, 11.5], [38.65, 11.25], [38.75, 11.0], [38.53, 10.47], [38.0, 10.25], [37.47, 10.47], [37.32, 10.82], [37.0, 10.96], [36.68, 10.82], [36.53, 10.47], [36.13, 10.3], [36.25, 10.0], [36.03, 9.47], [35.5, 9.25], [34.97, 9.47], [34.75, 10.0], [34.96, 10.5], [34.82, 10.82], [34.47, 10.97], [34.25, 11.5], [34.35, 11.75], [34.25, 12.0], [34.47, 12.53]]]]}, "2011-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 12.5], [35.47, 13.03], [36.0, 13.25], [36.53, 13.03], [36.75, 12.5], [36.63, 12.2], [37.0, 12.04], [37.5, 12.25], [37.75, 12.15], [38.0, 12.25], [38.53, 12.03], [38.75, 11.5], [38.65, 11.25], [38.75, 11.0], [38.53, 10.47], [38.0, 10.25], [37.47, 10.47], [37.32, 10.82], [37.0, 10.96], [36.5, 10.75], [35.97, 10.97], [35.75, 11.5], [35.88, 11.8], [35.47, 11.97], [35.25, 12.5]]]]}, "2011-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.75, 11.5], [36.97, 12.03], [37.5, 12.25], [37.75, 12.15], [38.0, 12.25], [38.53, 12.03], [38.75, 11.5], [38.65, 11.25], [38.75, 11.0], [38.53, 10.47], [38.0, 10.25], [37.47, 10.47], [37.32, 10.82], [36.97, 10.97], [36.75, 11.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.9482537736776635}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.6469577923230267}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.246551663140735, 30.84429443043547, 30.928088548488688, 31.108143150789715, 26.47761583769335, 22.615412913964462]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.58396426095754, 36.09706718011512, 36.42424544677857, 35.61625341526468, 34.98955431088939, 24.431938664206996]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.471763081255375, 2.7083418511104154, 3.093319154546253, 2.3032515650631127, 1.9581127145866843, 1.8462364147524681]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2644947455156625, 3.504788847911982, 3.9482537736776635, 2.870343847312199, 2.108150370423971, 1.9363013581537984]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.352276491939433, 1.529577909583372, 1.8326360874589989, 1.3571355313421298, 1.3096571860037984, 1.339892672955422]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6065174988860593, 1.9817139604142853, 2.269673922281708, 1.627845915266471, 1.4312631762372887, 1.3924990475574675]}}