{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:14.321226", "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-02_to_2011-Apr-05_36.0_12.0"}, "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": 2011040001759}, "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 02 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 05 2011"}, "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": 54228.91769932578}, "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": ["Eritrea", "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": 12.0}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.35, 13.75], [34.25, 14.0], [34.47, 14.53], [35.0, 14.75], 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[37.53, 11.47], [37.18, 11.32], [37.15, 11.25], [37.25, 11.0], [37.03, 10.47], [36.5, 10.25], [35.97, 10.47], [35.82, 10.82], [35.47, 10.97], [35.25, 11.5], [35.35, 11.75], [35.32, 11.82], [34.97, 11.97], [34.82, 12.32], [34.47, 12.47], [34.25, 13.0], [34.35, 13.25], [34.25, 13.5], [34.35, 13.75]], [[36.75, 13.35], [36.68, 13.32], [36.57, 13.07], [37.0, 13.25], [36.75, 13.35]], [[36.32, 12.68], [36.43, 12.93], [36.18, 12.82], [36.15, 12.75], [36.18, 12.68], [36.25, 12.65], [36.32, 12.68]]]]}, "2011-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.35, 13.75], [34.25, 14.0], [34.47, 14.53], [35.0, 14.75], [35.25, 14.65], [35.5, 14.75], [36.0, 14.54], [36.32, 14.68], [36.47, 15.03], [37.0, 15.25], [37.53, 15.03], [37.75, 14.5], [37.65, 14.25], [37.75, 14.0], [37.53, 13.47], [37.0, 13.25], [37.53, 13.03], [37.75, 12.5], [37.65, 12.25], [37.75, 12.0], [37.53, 11.47], [37.18, 11.32], [37.15, 11.25], [37.25, 11.0], [37.03, 10.47], [36.5, 10.25], [35.97, 10.47], [35.82, 10.82], [35.47, 10.97], [35.25, 11.5], [35.35, 11.75], [35.32, 11.82], [34.97, 11.97], [34.82, 12.32], [34.47, 12.47], [34.25, 13.0], [34.35, 13.25], [34.25, 13.5], [34.35, 13.75]], [[36.75, 13.35], [36.68, 13.32], [36.57, 13.07], [37.0, 13.25], [36.75, 13.35]], [[36.32, 12.68], [36.43, 12.93], [36.18, 12.82], [36.15, 12.75], [36.18, 12.68], [36.25, 12.65], [36.32, 12.68]]]]}, "2011-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.25, 12.5], [36.47, 13.03], [37.0, 13.25], [37.53, 13.03], [37.75, 12.5], [37.65, 12.25], [37.75, 12.0], [37.53, 11.47], [37.18, 11.32], [37.03, 10.97], [36.5, 10.75], [35.97, 10.97], [35.75, 11.5], [35.97, 12.03], [36.32, 12.18], [36.35, 12.25], [36.25, 12.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2621196576358784}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4955193522181514}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.89734927138744, 33.48977619438301, 33.42973357084708, 27.458654222292182]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.34735171573732, 37.069104236646695, 36.96219763627613, 29.7002989697437]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.227741027820696, 2.7222146581463087, 2.591142355135768, 1.9005011211307874]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.6445141655100883, 3.1345217479158123, 3.2621196576358784, 2.0831386843901214]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.449428385955301, 1.753853809870258, 1.574625730869614, 1.2042288715755818]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6049452604642624, 1.986439791061577, 1.9817098623149223, 1.2811876041045807]}}