{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:45.705851", "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-Oct-26_to_2011-Oct-31_8.5_25.0"}, "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": 2011100002722}, "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": "October 26 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 31 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": 70167.08406143078}, "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": ["Algeria", "Libya"]}, "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": 25.0}, "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": 8.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 10.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.5, 25.75], [9.03, 25.53], [9.25, 25.0], [9.03, 24.47], [8.5, 24.25], [7.97, 24.47], [7.75, 25.0], [7.97, 25.53], [8.5, 25.75]]]]}, "2011-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 25.53], [8.5, 25.75], [9.03, 25.53], [9.25, 25.0], [9.15, 24.75], [9.25, 24.5], [9.03, 23.97], [8.5, 23.75], [7.97, 23.97], [7.75, 24.5], [7.85, 24.75], [7.75, 25.0], [7.97, 25.53]]]]}, "2011-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, 25.53], [6.82, 25.68], [6.97, 26.03], [7.5, 26.25], [7.75, 26.15], [8.0, 26.25], [8.25, 26.15], [8.5, 26.25], [8.75, 26.15], [9.0, 26.25], [9.3, 26.13], [9.47, 26.53], [10.0, 26.75], [10.25, 26.65], [10.5, 26.75], [11.03, 26.53], [11.25, 26.0], [11.03, 25.47], [10.68, 25.32], [10.65, 25.25], [10.75, 25.0], [10.53, 24.47], [10.0, 24.25], [9.75, 24.35], [9.5, 24.25], [9.25, 24.35], [9.18, 24.32], [9.03, 23.97], [8.68, 23.82], [8.53, 23.47], [8.0, 23.25], [7.75, 23.35], [7.68, 23.32], [7.53, 22.97], [7.0, 22.75], [6.47, 22.97], [6.25, 23.5], [6.46, 24.0], [6.25, 24.5], [6.35, 24.75], [6.25, 25.0], [6.47, 25.53]]]]}, "2011-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, 25.53], [6.82, 25.68], [6.97, 26.03], [7.5, 26.25], [7.75, 26.15], [8.0, 26.25], [8.25, 26.15], [8.5, 26.25], [8.75, 26.15], [9.0, 26.25], [9.3, 26.13], [9.47, 26.53], [10.0, 26.75], [10.25, 26.65], [10.5, 26.75], [11.03, 26.53], [11.25, 26.0], [11.03, 25.47], [10.68, 25.32], [10.65, 25.25], [10.75, 25.0], [10.53, 24.47], [10.0, 24.25], [9.75, 24.35], [9.63, 24.3], [9.75, 24.0], [9.53, 23.47], [9.18, 23.32], [9.03, 22.97], [8.5, 22.75], [8.25, 22.85], [8.0, 22.75], [7.5, 22.96], [7.0, 22.75], [6.47, 22.97], [6.25, 23.5], [6.46, 24.0], [6.25, 24.5], [6.35, 24.75], [6.25, 25.0], [6.47, 25.53]]]]}, "2011-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, 25.53], [6.82, 25.68], [6.97, 26.03], [7.5, 26.25], [7.75, 26.15], [8.0, 26.25], [8.25, 26.15], [8.5, 26.25], [8.75, 26.15], [9.0, 26.25], [9.3, 26.13], [9.47, 26.53], [10.0, 26.75], [10.25, 26.65], [10.5, 26.75], [11.03, 26.53], [11.25, 26.0], [11.03, 25.47], [10.68, 25.32], [10.65, 25.25], [10.75, 25.0], [10.53, 24.47], [10.0, 24.25], [9.75, 24.35], [9.63, 24.3], [9.75, 24.0], [9.53, 23.47], [9.18, 23.32], [9.03, 22.97], [8.5, 22.75], [8.25, 22.85], [8.0, 22.75], [7.5, 22.96], [7.0, 22.75], [6.47, 22.97], [6.25, 23.5], [6.46, 24.0], [6.25, 24.5], [6.35, 24.75], [6.25, 25.0], [6.47, 25.53]]]]}, "2011-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.75, 24.0], [6.97, 24.53], [7.5, 24.75], [7.75, 24.65], [7.82, 24.68], [7.85, 24.75], [7.75, 25.0], [7.97, 25.53], [8.5, 25.75], [9.03, 25.53], [9.25, 25.0], [9.15, 24.75], [9.18, 24.68], [9.53, 24.53], [9.75, 24.0], [9.53, 23.47], [9.18, 23.32], [9.03, 22.97], [8.5, 22.75], [8.25, 22.85], [8.0, 22.75], [7.47, 22.97], [7.32, 23.32], [6.97, 23.47], [6.75, 24.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.189437871022562}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.810150192745346}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.8463934216457, 24.117659783919407, 24.78312051861809, 25.111970849937507, 25.37844328080888, 24.859504225817545]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.8463934216457, 24.74869023602963, 27.356778922232422, 29.36686851293814, 28.221148139089394, 26.07805618326023]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.765083628787579, 2.92663383895524, 3.3469215833730592, 3.8323423140969863, 4.287137297493145, 3.817702619729097]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.765083628787579, 3.1611074730685687, 3.9719730777442237, 6.189437871022562, 5.725567017074695, 4.477415049131025]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3964110732815174, 1.4361107659022614, 1.4538922575595465, 1.6074814874961156, 1.7552548800343022, 1.4923053477057346]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3964110732815174, 1.571687336269828, 1.6257299576999011, 2.254899474536912, 2.0778486252807946, 1.6749008835342705]}}