{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:04.371085", "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": "2024-Dec-08_to_2024-Dec-15_2.0_28.5"}, "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": 2024120001323}, "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": "December 08 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 15 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 227142.90893007093}, "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"]}, "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": 28.5}, "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": 2.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "2.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 0.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 9.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.0, 29.25], [2.53, 29.03], [2.75, 28.5], [2.53, 27.97], [2.0, 27.75], [1.47, 27.97], [1.25, 28.5], [1.47, 29.03], [2.0, 29.25]]]]}, "2024-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.5, 29.75], [3.03, 29.53], [3.18, 29.18], [3.25, 29.15], [3.5, 29.25], [4.03, 29.03], [4.25, 28.5], [4.03, 27.97], [3.5, 27.75], [3.25, 27.85], [3.0, 27.75], [2.75, 27.85], [2.5, 27.75], [2.25, 27.85], [2.0, 27.75], [1.47, 27.97], [1.25, 28.5], [1.47, 29.03], [1.82, 29.18], [1.97, 29.53], [2.5, 29.75]]]]}, "2024-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.03, 28.47], [-0.25, 29.0], [-0.03, 29.53], [0.5, 29.75], [0.75, 29.65], [1.0, 29.75], [1.25, 29.65], [1.5, 29.75], [1.75, 29.65], [2.0, 29.75], [2.25, 29.65], [2.5, 29.75], [2.75, 29.65], [3.0, 29.75], [3.25, 29.65], [3.5, 29.75], [3.75, 29.65], [4.0, 29.75], [4.25, 29.65], [4.5, 29.75], [5.03, 29.53], [5.18, 29.18], [5.25, 29.15], [5.5, 29.25], [6.03, 29.03], [6.18, 28.68], [6.53, 28.53], [6.75, 28.0], [6.53, 27.47], [6.18, 27.32], [6.03, 26.97], [5.5, 26.75], [4.97, 26.97], [4.82, 27.32], [4.75, 27.35], [4.5, 27.25], [4.25, 27.35], [4.0, 27.25], [3.75, 27.35], [3.5, 27.25], [3.25, 27.35], [3.0, 27.25], [2.75, 27.35], [2.5, 27.25], [1.97, 27.47], [1.82, 27.82], [1.47, 27.97], [1.32, 28.32], [1.25, 28.35], [1.0, 28.25], [0.75, 28.35], [0.5, 28.25], [-0.03, 28.47]]]]}, "2024-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.03, 28.47], [-0.25, 29.0], [-0.03, 29.53], [0.5, 29.75], [0.75, 29.65], [1.0, 29.75], [1.25, 29.65], [1.5, 29.75], [1.75, 29.65], [2.0, 29.75], [2.25, 29.65], [2.5, 29.75], [2.75, 29.65], [3.0, 29.75], [3.25, 29.65], [3.5, 29.75], [3.75, 29.65], [4.0, 29.75], [4.25, 29.65], [4.5, 29.75], [5.03, 29.53], [5.18, 29.18], [5.25, 29.15], [5.5, 29.25], [6.03, 29.03], [6.18, 28.68], [6.53, 28.53], [6.75, 28.0], [6.57, 27.57], [7.0, 27.75], [7.53, 27.53], [7.75, 27.0], [7.53, 26.47], [7.0, 26.25], [6.7, 26.38], [6.53, 25.97], [6.0, 25.75], [5.47, 25.97], [5.32, 26.32], [5.25, 26.35], [5.0, 26.25], [4.47, 26.47], [4.25, 27.0], [4.38, 27.3], [4.25, 27.35], [4.0, 27.25], [3.75, 27.35], [3.5, 27.25], [3.25, 27.35], [3.0, 27.25], [2.75, 27.35], [2.68, 27.32], [2.53, 26.97], [2.0, 26.75], [1.47, 26.97], [1.32, 27.32], [0.97, 27.47], [0.75, 28.0], [0.85, 28.25], [0.82, 28.32], [0.75, 28.35], [0.5, 28.25], [-0.03, 28.47]]]]}, "2024-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 23.97], [2.25, 24.5], [2.47, 25.03], [3.0, 25.25], [3.53, 25.03], [3.75, 24.5], [3.53, 23.97], [3.0, 23.75], [2.47, 23.97]]], [[[-0.25, 29.0], [-0.03, 29.53], [0.5, 29.75], [0.75, 29.65], [1.0, 29.75], [1.25, 29.65], [1.5, 29.75], [1.75, 29.65], [2.0, 29.75], [2.25, 29.65], [2.5, 29.75], [2.75, 29.65], [3.0, 29.75], [3.25, 29.65], [3.5, 29.75], [3.75, 29.65], [4.0, 29.75], [4.25, 29.65], [4.5, 29.75], [5.03, 29.53], [5.18, 29.18], [5.25, 29.15], [5.5, 29.25], [6.03, 29.03], [6.18, 28.68], [6.53, 28.53], [6.75, 28.0], [6.57, 27.57], [7.0, 27.75], [7.53, 27.53], [7.68, 27.18], [7.75, 27.15], [8.0, 27.25], [8.53, 27.03], [8.68, 26.68], [9.03, 26.53], [9.25, 26.0], [9.13, 25.7], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.5, 24.46], [8.0, 24.25], [7.57, 24.43], [7.75, 24.0], [7.53, 23.47], [7.0, 23.25], [6.7, 23.38], [6.53, 22.97], [6.0, 22.75], [5.47, 22.97], [5.25, 23.5], [5.47, 24.03], [6.0, 24.25], [6.3, 24.13], [6.47, 24.53], [7.0, 24.75], [7.43, 24.57], [7.32, 24.82], [6.97, 24.97], [6.75, 25.5], [6.96, 26.0], [6.82, 26.32], [6.7, 26.38], [6.53, 25.97], [6.0, 25.75], [5.75, 25.85], [5.5, 25.75], [6.03, 25.53], [6.25, 25.0], [6.03, 24.47], [5.5, 24.25], [4.97, 24.47], [4.8, 24.88], [4.5, 24.75], [3.97, 24.97], [3.75, 25.5], [3.97, 26.03], [4.5, 26.25], [4.93, 26.07], [4.82, 26.32], [4.47, 26.47], [4.25, 27.0], [4.38, 27.3], [4.25, 27.35], [4.0, 27.25], [3.75, 27.35], [3.5, 27.25], [3.25, 27.35], [3.0, 27.25], [2.75, 27.35], [2.68, 27.32], [2.53, 26.97], [2.18, 26.82], [2.03, 26.47], [1.5, 26.25], [1.25, 26.35], [1.0, 26.25], [0.47, 26.47], [0.25, 27.0], [0.47, 27.53], [0.87, 27.7], [0.75, 28.0], [0.85, 28.25], [0.82, 28.32], [0.75, 28.35], [0.5, 28.25], [-0.03, 28.47], [-0.25, 29.0]], [[5.07, 25.93], [5.2, 25.63], [5.5, 25.75], [5.07, 25.93]]]]}, "2024-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.97, 29.03], [1.5, 29.25], [1.75, 29.15], [2.0, 29.25], [2.25, 29.15], [2.5, 29.25], [2.75, 29.15], [3.0, 29.25], [3.25, 29.15], [3.5, 29.25], [3.75, 29.15], [4.0, 29.25], [4.53, 29.03], [4.68, 28.68], [4.75, 28.65], [5.0, 28.75], [5.25, 28.65], [5.5, 28.75], [5.75, 28.65], [6.0, 28.75], [6.53, 28.53], [6.75, 28.0], [6.57, 27.57], [7.0, 27.75], [7.53, 27.53], [7.68, 27.18], [7.75, 27.15], [8.0, 27.25], [8.53, 27.03], [8.68, 26.68], [9.03, 26.53], [9.25, 26.0], [9.15, 25.75], [9.18, 25.68], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.75, 24.35], [8.5, 24.25], [8.25, 24.35], [8.18, 24.32], [8.03, 23.97], [7.68, 23.82], [7.53, 23.47], [7.18, 23.32], [7.03, 22.97], [6.68, 22.82], [6.53, 22.47], [6.18, 22.32], [6.03, 21.97], [5.5, 21.75], [5.25, 21.85], [5.0, 21.75], [4.47, 21.97], [4.25, 22.5], [4.46, 23.0], [4.25, 23.5], [4.43, 23.93], [4.0, 23.75], [3.75, 23.85], [3.68, 23.82], [3.53, 23.47], [3.18, 23.32], [3.03, 22.97], [2.5, 22.75], [1.97, 22.97], [1.75, 23.5], [1.97, 24.03], [2.32, 24.18], [2.35, 24.25], [2.25, 24.5], [2.47, 25.03], [3.0, 25.25], [3.25, 25.15], [3.32, 25.18], [3.47, 25.53], [3.82, 25.68], [3.97, 26.03], [4.32, 26.18], [4.46, 26.5], [4.25, 27.0], [4.38, 27.3], [4.25, 27.35], [4.0, 27.25], [3.75, 27.35], [3.5, 27.25], [3.25, 27.35], [3.0, 27.25], [2.75, 27.35], [2.68, 27.32], [2.53, 26.97], [2.18, 26.82], [2.03, 26.47], [1.5, 26.25], [1.25, 26.35], [1.0, 26.25], [0.47, 26.47], [0.25, 27.0], [0.47, 27.53], [0.87, 27.7], [0.75, 28.0], [0.85, 28.25], [0.75, 28.5], [0.97, 29.03]], [[6.82, 24.68], [6.85, 24.75], [6.82, 24.82], [6.75, 24.85], [6.68, 24.82], [6.65, 24.75], [6.7, 24.63], [6.82, 24.68]]]]}, "2024-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 25.03], [3.0, 25.25], [3.25, 25.15], [3.32, 25.18], [3.47, 25.53], [3.82, 25.68], [3.97, 26.03], [4.32, 26.18], [4.47, 26.53], [4.82, 26.68], [4.97, 27.03], [5.32, 27.18], [5.47, 27.53], [6.0, 27.75], [6.5, 27.54], [7.0, 27.75], [7.53, 27.53], [7.68, 27.18], [7.75, 27.15], [8.0, 27.25], [8.53, 27.03], [8.68, 26.68], [9.03, 26.53], [9.25, 26.0], [9.15, 25.75], [9.18, 25.68], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.75, 24.35], [8.5, 24.25], [8.25, 24.35], [8.18, 24.32], [8.03, 23.97], [7.68, 23.82], [7.53, 23.47], [7.18, 23.32], [7.03, 22.97], [6.68, 22.82], [6.53, 22.47], [6.18, 22.32], [6.03, 21.97], [5.5, 21.75], [5.25, 21.85], [5.0, 21.75], [4.47, 21.97], [4.25, 22.5], [4.46, 23.0], [4.25, 23.5], [4.43, 23.93], [4.0, 23.75], [3.75, 23.85], [3.68, 23.82], [3.53, 23.47], [3.18, 23.32], [3.03, 22.97], [2.5, 22.75], [1.97, 22.97], [1.75, 23.5], [1.97, 24.03], [2.32, 24.18], [2.35, 24.25], [2.25, 24.5], [2.47, 25.03]], [[6.75, 24.85], [6.68, 24.82], [6.65, 24.75], [6.7, 24.63], [6.82, 24.68], [6.85, 24.75], [6.82, 24.82], [6.75, 24.85]]], [[[1.5, 28.75], [1.75, 28.65], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [3.03, 28.53], [3.25, 28.0], [3.03, 27.47], [2.68, 27.32], [2.53, 26.97], [2.18, 26.82], [2.03, 26.47], [1.5, 26.25], [1.25, 26.35], [1.0, 26.25], [0.47, 26.47], [0.25, 27.0], [0.47, 27.53], [0.87, 27.7], [0.75, 28.0], [0.97, 28.53], [1.5, 28.75]]]]}, "2024-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 25.03], [3.0, 25.25], [3.25, 25.15], [3.32, 25.18], [3.47, 25.53], [3.82, 25.68], [3.97, 26.03], [4.32, 26.18], [4.47, 26.53], [5.0, 26.75], [5.53, 26.53], [5.68, 26.18], [5.75, 26.15], [5.82, 26.18], [5.97, 26.53], [6.5, 26.75], [7.0, 26.54], [7.5, 26.75], [8.03, 26.53], [8.18, 26.18], [8.25, 26.15], [8.5, 26.25], [9.03, 26.03], [9.18, 25.68], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.75, 24.35], [8.5, 24.25], [8.25, 24.35], [8.18, 24.32], [8.03, 23.97], [7.5, 23.75], [7.07, 23.93], [7.25, 23.5], [7.03, 22.97], [6.68, 22.82], [6.53, 22.47], [6.18, 22.32], [6.03, 21.97], [5.5, 21.75], [5.25, 21.85], [5.0, 21.75], [4.47, 21.97], [4.25, 22.5], [4.46, 23.0], [4.25, 23.5], [4.43, 23.93], [4.0, 23.75], [3.75, 23.85], [3.68, 23.82], [3.53, 23.47], [3.18, 23.32], [3.03, 22.97], [2.5, 22.75], [1.97, 22.97], [1.75, 23.5], [1.97, 24.03], [2.32, 24.18], [2.35, 24.25], [2.25, 24.5], [2.47, 25.03]], [[6.65, 24.25], [6.68, 24.18], [6.93, 24.07], [6.75, 24.5], [6.65, 24.25]], [[6.85, 24.75], [6.82, 24.82], [6.75, 24.85], [6.68, 24.82], [6.65, 24.75], [6.75, 24.5], [6.85, 24.75]]], [[[0.25, 27.0], [0.47, 27.53], [1.0, 27.75], [1.25, 27.65], [1.5, 27.75], [2.03, 27.53], [2.25, 27.0], [2.03, 26.47], [1.5, 26.25], [1.25, 26.35], [1.0, 26.25], [0.47, 26.47], [0.25, 27.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.5594120199253325}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.264944382911396}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.613296763102255, 16.02934951782231, 16.58298273331087, 18.204263269333637, 17.219474741617887, 18.089557974679224, 18.48712372014552, 17.845368473113524]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.613296763102255, 16.822090403238974, 17.830547587076865, 19.80833460489913, 21.21114629109701, 23.67316335042318, 23.208343760172568, 21.59088287353518]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1001933756875246, 3.2280005841877255, 3.616323344606658, 4.97113781133673, 3.930037042922977, 4.342843594624969, 4.627143673194011, 4.03233741877065]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1001933756875246, 3.479708080805267, 4.5913669931963454, 6.078504250841661, 5.44335783618493, 6.184298556579449, 6.5594120199253325, 5.081897511294073]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2625064559979846, 1.319120515087662, 1.4822428992965915, 1.9910685395612482, 1.5536943633431866, 1.7268417539924756, 1.8536663808627443, 1.620170337927556]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2625064559979846, 1.4233153687077476, 1.8674888888443628, 2.633777367790936, 2.185227582297728, 2.320690056593335, 2.3321303631199095, 2.1225773144854254]}}