{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:28.575633", "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": "2025-Oct-12_to_2025-Oct-15_355.5_34.0"}, "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": 2025100001637}, "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 12 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 15 2025"}, "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": 67280.02796043134}, "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", "Morocco"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": 34.0}, "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": 355.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 353.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 359.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-5.65, 33.25], [-5.75, 33.5], [-5.53, 34.03], [-5.18, 34.18], [-5.03, 34.53], [-4.5, 34.75], [-4.25, 34.65], [-4.0, 34.75], [-3.47, 34.53], [-3.32, 34.18], [-3.25, 34.15], [-3.18, 34.18], [-3.03, 34.53], [-2.5, 34.75], [-2.25, 34.65], [-2.0, 34.75], [-1.75, 34.65], [-1.5, 34.75], [-0.97, 34.53], [-0.75, 34.0], [-0.85, 33.75], [-0.82, 33.68], [-0.47, 33.53], [-0.25, 33.0], [-0.47, 32.47], [-1.0, 32.25], [-1.25, 32.35], [-1.32, 32.32], [-1.47, 31.97], [-2.0, 31.75], [-2.53, 31.97], [-2.68, 32.32], [-2.75, 32.35], [-3.0, 32.25], [-3.25, 32.35], [-3.5, 32.25], [-4.03, 32.47], [-4.18, 32.82], [-4.25, 32.85], [-4.32, 32.82], [-4.47, 32.47], [-4.82, 32.32], [-4.97, 31.97], [-5.32, 31.82], [-5.47, 31.47], [-6.0, 31.25], [-6.25, 31.35], [-6.32, 31.32], [-6.47, 30.97], [-7.0, 30.75], [-7.53, 30.97], [-7.75, 31.5], [-7.53, 32.03], [-7.18, 32.18], [-7.03, 32.53], [-6.68, 32.68], [-6.53, 33.03], [-6.0, 33.25], [-5.75, 33.15], [-5.68, 33.18], [-5.65, 33.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.029999999999973, 32.53], [-6.5, 32.75], [-6.25, 32.65], [-6.180000000000007, 32.68], [-6.029999999999973, 33.03], [-5.5, 33.25], [-5.069999999999993, 33.07], [-5.25, 33.5], [-5.149999999999977, 33.75], [-5.25, 34.0], [-5.029999999999973, 34.53], [-4.5, 34.75], [-4.25, 34.65], [-4.0, 34.75], [-3.4700000000000273, 34.53], [-3.319999999999993, 34.18], [-3.25, 34.15], [-3.180000000000007, 34.18], [-3.0299999999999727, 34.53], [-2.5, 34.75], [-2.25, 34.65], [-2.0, 34.75], [-1.75, 34.65], [-1.5, 34.75], [-0.9700000000000273, 34.53], [-0.75, 34.0], [-0.8500000000000227, 33.75], [-0.75, 33.5], [-0.8500000000000227, 33.25], [-0.75, 33.0], [-0.9700000000000273, 32.47], [-1.3199999999999932, 32.32], [-1.4700000000000273, 31.97], [-2.0, 31.75], [-2.5299999999999727, 31.97], [-2.680000000000007, 32.32], [-3.0, 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.918614180581412}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.61902177598745, 20.224200087327233, 20.340599901248254, 18.527532111273842]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.938900248209677, 23.30016225179037, 23.04429143269857, 23.395310974121116]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.866113820247847, 3.9306639776311205, 4.200255268308876, 3.48305048476797]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.859538024227277, 5.192842805240673, 5.573536226960869, 4.80185593896374]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4333219030830608, 1.4676275920984696, 1.6000040178477215, 1.3553986335180208]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8228720902750004, 2.00493552597213, 2.1129086465450153, 1.757948840622802]}}