{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-27 23:16:39.581430", "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": "2026-Aug-10_to_2026-Aug-13_275.0_-79.5"}, "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": 2026080001164}, "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 10 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2026"}, "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": 58836.02567191506}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -79.5}, "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": 275.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "275.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 276.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -82.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -78.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.53, -81.53], [-96.75, -81.0], [-96.53, -80.47], [-96.0, -80.25], [-95.75, -80.35], [-95.5, -80.25], [-95.25, -80.35], [-95.18, -80.32], [-95.03, -79.97], [-94.5, -79.75], [-94.25, -79.85], [-94.18, -79.82], [-94.03, -79.47], [-93.5, -79.25], [-93.25, -79.35], [-93.0, -79.25], [-92.75, -79.35], [-92.68, -79.32], [-92.53, -78.97], [-92.0, -78.75], [-91.75, -78.85], [-91.5, -78.75], [-91.25, -78.85], [-91.18, -78.82], [-91.03, -78.47], [-90.5, -78.25], [-90.25, -78.35], [-90.0, -78.25], [-89.75, -78.35], [-89.5, -78.25], [-89.25, -78.35], [-89.0, -78.25], [-88.75, -78.35], [-88.5, -78.25], [-88.25, -78.35], [-88.0, -78.25], [-87.75, -78.35], [-87.5, -78.25], [-87.25, -78.35], [-87.0, -78.25], [-86.75, -78.35], [-86.5, -78.25], [-86.25, -78.35], [-86.0, -78.25], [-85.75, -78.35], [-85.5, -78.25], [-84.97, -78.47], [-84.82, -78.82], [-84.75, -78.85], [-84.5, -78.75], [-84.25, -78.85], [-84.0, -78.75], [-83.75, -78.85], [-83.5, -78.75], [-82.97, -78.97], [-82.75, -79.5], [-82.97, -80.03], [-83.5, -80.25], [-83.75, -80.15], [-84.0, -80.25], [-84.25, -80.15], [-84.5, -80.25], [-84.75, -80.15], [-85.0, -80.25], [-85.53, -80.03], [-85.68, -79.68], [-85.75, -79.65], [-85.82, -79.68], [-85.97, -80.03], [-86.5, -80.25], [-86.75, -80.15], [-87.0, -80.25], [-87.25, -80.15], [-87.5, -80.25], [-87.75, -80.15], [-88.0, -80.25], [-88.25, -80.15], [-88.5, -80.25], [-88.75, -80.15], [-88.82, -80.18], [-88.97, -80.53], [-89.5, -80.75], [-89.75, -80.65], [-90.0, -80.75], [-90.25, -80.65], [-90.5, -80.75], [-90.75, -80.65], [-91.0, -80.75], [-91.25, -80.65], [-91.32, -80.68], [-91.47, -81.03], [-92.0, -81.25], [-92.25, -81.15], [-92.5, -81.25], [-92.75, -81.15], [-93.0, -81.25], [-93.25, -81.15], [-93.5, -81.25], [-93.75, -81.15], [-93.82, -81.18], [-93.97, -81.53], [-94.5, -81.75], [-94.75, -81.65], [-95.0, -81.75], [-95.25, -81.65], [-95.5, -81.75], [-95.75, -81.65], [-96.0, -81.75], [-96.53, -81.53]]]]}, "2026-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.75, -80.5], [-97.53, -79.97], [-97.0, -79.75], [-96.75, -79.85], [-96.5, -79.75], [-96.25, -79.85], [-96.0, -79.75], [-95.75, -79.85], [-95.5, -79.75], [-95.25, -79.85], [-95.0, -79.75], [-94.75, -79.85], [-94.5, -79.75], [-94.25, -79.85], [-94.18, -79.82], [-94.03, -79.47], [-93.5, -79.25], [-93.25, -79.35], [-93.0, -79.25], [-92.75, -79.35], [-92.68, -79.32], [-92.53, -78.97], [-92.0, -78.75], [-91.75, -78.85], [-91.5, -78.75], [-91.25, -78.85], [-91.18, -78.82], [-91.03, -78.47], [-90.5, -78.25], [-90.25, -78.35], [-90.0, -78.25], [-89.75, -78.35], [-89.5, -78.25], [-89.25, -78.35], [-89.0, -78.25], [-88.75, -78.35], [-88.5, -78.25], [-88.25, -78.35], [-88.0, -78.25], [-87.75, -78.35], [-87.5, -78.25], [-87.25, -78.35], [-87.0, -78.25], [-86.75, -78.35], [-86.5, -78.25], [-86.25, -78.35], [-86.0, -78.25], [-85.75, -78.35], [-85.68, -78.32], [-85.53, -77.97], [-85.0, -77.75], [-84.75, -77.85], [-84.5, -77.75], [-83.97, -77.97], [-83.82, -78.32], [-83.47, -78.47], [-83.32, -78.82], [-82.97, -78.97], [-82.75, -79.5], [-82.97, -80.03], [-83.32, -80.18], [-83.47, -80.53], [-83.82, -80.68], [-83.97, -81.03], [-84.5, -81.25], [-84.75, -81.15], [-84.82, -81.18], [-84.97, -81.53], [-85.5, -81.75], [-85.75, -81.65], [-86.0, -81.75], [-86.25, -81.65], [-86.32, -81.68], [-86.47, -82.03], [-87.0, -82.25], [-87.53, -82.03], [-87.68, -81.68], [-87.75, -81.65], [-87.82, -81.68], [-87.97, -82.03], [-88.5, -82.25], [-88.75, -82.15], [-89.0, -82.25], [-89.25, -82.15], [-89.5, -82.25], [-89.75, -82.15], [-90.0, -82.25], [-90.25, -82.15], [-90.5, -82.25], [-90.75, -82.15], [-90.82, -82.18], [-90.97, -82.53], [-91.5, -82.75], [-92.03, -82.53], [-92.25, -82.0], [-92.15, -81.75], [-92.18, -81.68], [-92.25, -81.65], [-92.5, -81.75], [-92.75, -81.65], [-93.0, -81.75], [-93.25, -81.65], [-93.5, -81.75], [-93.75, -81.65], [-94.0, -81.75], [-94.25, -81.65], [-94.5, -81.75], [-94.75, -81.65], [-95.0, -81.75], [-95.25, -81.65], [-95.5, -81.75], [-95.75, -81.65], [-96.0, -81.75], [-96.25, -81.65], [-96.5, -81.75], [-97.03, -81.53], [-97.18, -81.18], [-97.53, -81.03], [-97.75, -80.5]]]]}, "2026-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.75, -80.5], [-97.53, -79.97], [-97.0, -79.75], [-96.75, -79.85], [-96.5, -79.75], [-96.25, -79.85], [-96.0, -79.75], [-95.75, -79.85], [-95.5, -79.75], [-95.25, -79.85], [-95.0, -79.75], [-94.75, -79.85], [-94.5, -79.75], [-94.25, -79.85], [-94.18, -79.82], [-94.03, -79.47], [-93.5, -79.25], [-93.25, -79.35], [-93.0, -79.25], [-92.75, -79.35], [-92.68, -79.32], [-92.53, -78.97], [-92.0, -78.75], [-91.75, -78.85], [-91.5, -78.75], [-91.25, -78.85], [-91.18, -78.82], [-91.03, -78.47], [-90.5, -78.25], [-90.25, -78.35], [-90.0, -78.25], [-89.75, -78.35], [-89.5, -78.25], [-89.25, -78.35], [-89.0, -78.25], [-88.75, -78.35], [-88.5, -78.25], [-88.25, -78.35], [-88.0, -78.25], [-87.75, -78.35], [-87.5, -78.25], [-87.25, -78.35], [-87.0, -78.25], [-86.75, -78.35], [-86.5, -78.25], [-86.25, -78.35], [-86.0, -78.25], [-85.75, -78.35], [-85.68, -78.32], [-85.53, -77.97], [-85.0, -77.75], [-84.75, -77.85], [-84.5, -77.75], [-83.97, -77.97], [-83.82, -78.32], [-83.47, -78.47], [-83.32, -78.82], [-82.97, -78.97], [-82.75, -79.5], [-82.97, -80.03], [-83.32, -80.18], [-83.47, -80.53], [-83.82, -80.68], [-83.97, -81.03], [-84.5, -81.25], [-84.75, -81.15], [-84.82, -81.18], [-84.97, -81.53], [-85.5, -81.75], [-85.75, -81.65], [-86.0, -81.75], [-86.25, -81.65], [-86.32, -81.68], [-86.47, -82.03], [-87.0, -82.25], [-87.53, -82.03], [-87.68, -81.68], [-87.75, -81.65], [-87.82, -81.68], [-87.97, -82.03], [-88.5, -82.25], [-88.75, -82.15], [-89.0, -82.25], [-89.25, -82.15], [-89.5, -82.25], [-89.75, -82.15], [-90.0, -82.25], [-90.25, -82.15], [-90.5, -82.25], [-90.75, -82.15], [-90.82, -82.18], [-90.97, -82.53], [-91.5, -82.75], [-92.03, -82.53], [-92.25, -82.0], [-92.15, -81.75], [-92.18, -81.68], [-92.25, -81.65], [-92.5, -81.75], [-92.75, -81.65], [-93.0, -81.75], [-93.25, -81.65], [-93.5, -81.75], [-93.75, -81.65], [-94.0, -81.75], [-94.25, -81.65], [-94.5, -81.75], [-94.75, -81.65], [-95.0, -81.75], [-95.25, -81.65], [-95.5, -81.75], [-95.75, -81.65], [-96.0, -81.75], [-96.25, -81.65], [-96.5, -81.75], [-97.03, -81.53], [-97.18, -81.18], [-97.53, -81.03], [-97.75, -80.5]]]]}, "2026-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.75, -80.5], [-97.53, -79.97], [-97.0, -79.75], [-96.75, -79.85], [-96.5, -79.75], [-96.25, -79.85], [-96.0, -79.75], [-95.75, -79.85], [-95.5, -79.75], [-95.25, -79.85], [-95.0, -79.75], [-94.75, -79.85], [-94.5, -79.75], [-94.25, -79.85], [-94.0, -79.75], [-93.75, -79.85], [-93.5, -79.75], [-93.25, -79.85], [-93.0, -79.75], [-92.75, -79.85], [-92.5, -79.75], [-92.25, -79.85], [-92.0, -79.75], [-91.75, -79.85], [-91.5, -79.75], [-91.25, -79.85], [-91.0, -79.75], [-90.75, -79.85], [-90.5, -79.75], [-90.25, -79.85], [-90.18, -79.82], [-90.03, -79.47], [-89.5, -79.25], [-89.25, -79.35], [-89.18, -79.32], [-89.03, -78.97], [-88.5, -78.75], [-88.25, -78.85], [-88.0, -78.75], [-87.75, -78.85], [-87.5, -78.75], [-87.25, -78.85], [-87.18, -78.82], [-87.03, -78.47], [-86.5, -78.25], [-86.25, -78.35], [-86.0, -78.25], [-85.75, -78.35], [-85.68, -78.32], [-85.53, -77.97], [-85.0, -77.75], [-84.75, -77.85], [-84.5, -77.75], [-83.97, -77.97], [-83.82, -78.32], [-83.47, -78.47], [-83.32, -78.82], [-82.97, -78.97], [-82.75, -79.5], [-82.97, -80.03], [-83.32, -80.18], [-83.47, -80.53], [-83.82, -80.68], [-83.97, -81.03], [-84.5, -81.25], [-84.75, -81.15], [-84.82, -81.18], [-84.97, -81.53], [-85.5, -81.75], [-85.75, -81.65], [-86.0, -81.75], [-86.25, -81.65], [-86.32, -81.68], [-86.47, -82.03], [-87.0, -82.25], [-87.53, -82.03], [-87.68, -81.68], [-87.75, -81.65], [-87.82, -81.68], [-87.97, -82.03], [-88.5, -82.25], [-88.75, -82.15], [-89.0, -82.25], [-89.25, -82.15], [-89.5, -82.25], [-89.75, -82.15], [-90.0, -82.25], [-90.25, -82.15], [-90.5, -82.25], [-90.75, -82.15], [-90.82, -82.18], [-90.97, -82.53], [-91.5, -82.75], [-92.03, -82.53], [-92.25, -82.0], [-92.15, -81.75], [-92.18, -81.68], [-92.25, -81.65], [-92.5, -81.75], [-92.75, -81.65], [-93.0, -81.75], [-93.25, -81.65], [-93.5, -81.75], [-93.75, -81.65], [-94.0, -81.75], [-94.25, -81.65], [-94.5, -81.75], [-94.75, -81.65], [-95.0, -81.75], [-95.25, -81.65], [-95.5, -81.75], [-95.75, -81.65], [-96.0, -81.75], [-96.25, -81.65], [-96.5, -81.75], [-97.03, -81.53], [-97.18, -81.18], [-97.53, -81.03], [-97.75, -80.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.417022890688315}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.22147457014067}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-28.880412801106758, -26.94224114190959, -25.034376486142435, -27.94817186848502]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-25.043783569335915, -22.21360054016111, -17.764037831624336, -20.94705174763996]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.842624780692201, 9.283733694499972, 10.899583364751104, 7.744012585758872]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.848870447809787, 11.515099808813261, 13.417022890688315, 10.011595073964855]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.443874070753014, 1.8112802732068798, 2.3127068024342576, 1.700915104004765]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5984175065653783, 2.0762162105285076, 3.328860199277944, 2.3203354140328285]}}