{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:16.951031", "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-Aug-24_to_2011-Aug-27_19.5_18.5"}, "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": 2011080002891}, "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 24 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 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": 67846.01293367142}, "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": ["Chad"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 18.5}, "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": 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": 18.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.0, 19.75], [20.53, 19.53], [20.75, 19.0], [20.65, 18.75], [20.75, 18.5], [20.53, 17.97], [20.0, 17.75], [19.75, 17.85], [19.5, 17.75], [18.97, 17.97], [18.75, 18.5], [18.97, 19.03], [19.32, 19.18], [19.47, 19.53], [20.0, 19.75]]]]}, "2011-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 18.25], [18.25, 18.5], [18.47, 19.03], [19.0, 19.25], [19.25, 19.15], [19.32, 19.18], [19.47, 19.53], [20.0, 19.75], [20.53, 19.53], [20.75, 19.0], [20.65, 18.75], [20.75, 18.5], [20.65, 18.25], [20.68, 18.18], [20.75, 18.15], [21.0, 18.25], [21.25, 18.15], [21.5, 18.25], [22.03, 18.03], [22.25, 17.5], [22.15, 17.25], [22.18, 17.18], [22.53, 17.03], [22.75, 16.5], [22.65, 16.25], [22.75, 16.0], [22.53, 15.47], [22.0, 15.25], [21.75, 15.35], [21.5, 15.25], [20.97, 15.47], [20.82, 15.82], [20.75, 15.85], [20.5, 15.75], [19.97, 15.97], [19.82, 16.32], [19.47, 16.47], [19.32, 16.82], [19.25, 16.85], [19.0, 16.75], [18.47, 16.97], [18.25, 17.5], [18.35, 17.75], [18.25, 18.0], [18.35, 18.25]]]]}, "2011-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 18.25], [18.25, 18.5], [18.47, 19.03], [19.0, 19.25], [19.25, 19.15], [19.32, 19.18], [19.47, 19.53], [20.0, 19.75], [20.53, 19.53], [20.75, 19.0], [20.65, 18.75], [20.75, 18.5], [20.65, 18.25], [20.68, 18.18], [20.75, 18.15], [21.0, 18.25], [21.25, 18.15], [21.5, 18.25], [22.03, 18.03], [22.25, 17.5], [22.15, 17.25], [22.18, 17.18], [22.53, 17.03], [22.75, 16.5], [22.65, 16.25], [22.75, 16.0], [22.53, 15.47], [22.0, 15.25], [21.75, 15.35], [21.5, 15.25], [20.97, 15.47], [20.82, 15.82], [20.75, 15.85], [20.5, 15.75], [19.97, 15.97], [19.82, 16.32], [19.47, 16.47], [19.32, 16.82], [19.25, 16.85], [19.0, 16.75], [18.47, 16.97], [18.25, 17.5], [18.35, 17.75], [18.25, 18.0], [18.35, 18.25]]]]}, "2011-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 18.25], [18.25, 18.5], [18.47, 19.03], [19.0, 19.25], [19.25, 19.15], [19.5, 19.25], [20.03, 19.03], [20.18, 18.68], [20.53, 18.53], [20.68, 18.18], [20.75, 18.15], [21.0, 18.25], [21.25, 18.15], [21.5, 18.25], [22.03, 18.03], [22.25, 17.5], [22.15, 17.25], [22.18, 17.18], [22.53, 17.03], [22.75, 16.5], [22.65, 16.25], [22.75, 16.0], [22.53, 15.47], [22.0, 15.25], [21.75, 15.35], [21.5, 15.25], [20.97, 15.47], [20.82, 15.82], [20.75, 15.85], [20.5, 15.75], [19.97, 15.97], [19.82, 16.32], [19.47, 16.47], [19.32, 16.82], [19.25, 16.85], [19.0, 16.75], [18.47, 16.97], [18.25, 17.5], [18.35, 17.75], [18.25, 18.0], [18.35, 18.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.531431203138311}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.709064579984056}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.87039523365269, 34.762609735351475, 35.265391827037945, 34.17634015289809]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.14855598520842, 36.32138535017094, 36.98633196598115, 36.18693159956365]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.555204610789114, 2.7571850315550104, 3.227868422753491, 2.252984634162907]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6414636017590283, 3.2198783691109156, 4.531431203138311, 2.7469326123992914]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2337396606593605, 1.6596217920253362, 1.9616040525067984, 1.4290772394443574]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.286763580177874, 2.273970995885222, 2.2895753769123495, 1.705010692772116]}}