{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:04.927257", "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": "2012-Dec-08_to_2012-Dec-10_278.5_38.5"}, "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": 2012120001758}, "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 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 158274.53547267948}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 38.5}, "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": 278.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 271.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 280.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.75, 33.5], [-88.53, 34.03], [-88.0, 34.25], [-87.75, 34.15], [-87.68, 34.18], [-87.53, 34.53], [-87.18, 34.68], [-87.03, 35.03], [-86.5, 35.25], [-86.25, 35.15], [-86.18, 35.18], [-86.03, 35.53], [-85.68, 35.68], [-85.53, 36.03], [-85.18, 36.18], [-85.15, 36.25], [-85.25, 36.5], [-85.03, 37.03], [-84.68, 37.18], [-84.53, 37.53], [-84.18, 37.68], [-84.15, 37.75], [-84.25, 38.0], [-84.15, 38.25], [-84.25, 38.5], [-84.03, 39.03], [-83.68, 39.18], [-83.53, 39.53], [-83.0, 39.75], [-82.75, 39.65], [-82.5, 39.75], [-82.25, 39.65], [-82.0, 39.75], [-81.75, 39.65], [-81.68, 39.68], [-81.53, 40.03], [-81.0, 40.25], [-80.75, 40.15], [-80.5, 40.25], [-80.25, 40.15], [-80.0, 40.25], [-79.47, 40.03], [-79.32, 39.68], [-78.97, 39.53], [-78.75, 39.0], [-78.97, 38.47], [-79.32, 38.32], [-79.47, 37.97], [-79.82, 37.82], [-79.97, 37.47], [-80.32, 37.32], [-80.47, 36.97], [-80.82, 36.82], [-80.97, 36.47], [-81.5, 36.25], [-81.75, 36.35], [-81.82, 36.32], [-81.97, 35.97], [-82.32, 35.82], [-82.47, 35.47], [-83.0, 35.25], [-83.25, 35.35], [-83.5, 35.25], [-83.75, 35.35], [-83.82, 35.32], [-83.97, 34.97], [-84.5, 34.75], [-84.75, 34.85], [-84.82, 34.82], [-84.85, 34.75], [-84.75, 34.5], [-84.85, 34.25], [-84.75, 34.0], [-84.97, 33.47], [-85.32, 33.32], [-85.47, 32.97], [-86.0, 32.75], [-86.25, 32.85], [-86.5, 32.75], [-86.75, 32.85], [-87.0, 32.75], [-87.25, 32.85], [-87.32, 32.82], [-87.47, 32.47], [-87.82, 32.32], [-87.97, 31.97], [-88.5, 31.75], [-89.03, 31.97], [-89.25, 32.5], [-89.03, 33.03], [-88.68, 33.18], [-88.65, 33.25], [-88.75, 33.5]]]]}, "2012-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.75, 33.5], [-88.53, 34.03], [-88.0, 34.25], [-87.75, 34.15], [-87.68, 34.18], [-87.53, 34.53], [-87.18, 34.68], [-87.03, 35.03], [-86.5, 35.25], [-86.25, 35.15], [-86.18, 35.18], [-86.03, 35.53], [-85.68, 35.68], [-85.53, 36.03], [-85.18, 36.18], [-85.15, 36.25], [-85.25, 36.5], [-85.03, 37.03], [-84.68, 37.18], [-84.53, 37.53], [-84.18, 37.68], [-84.15, 37.75], [-84.25, 38.0], [-84.15, 38.25], [-84.25, 38.5], [-84.03, 39.03], [-83.68, 39.18], [-83.53, 39.53], [-83.0, 39.75], [-82.75, 39.65], [-82.5, 39.75], [-82.25, 39.65], [-82.0, 39.75], [-81.75, 39.65], [-81.68, 39.68], [-81.53, 40.03], [-81.0, 40.25], [-80.75, 40.15], [-80.5, 40.25], [-80.25, 40.15], [-80.0, 40.25], [-79.47, 40.03], [-79.32, 39.68], [-78.97, 39.53], [-78.75, 39.0], [-78.97, 38.47], [-79.32, 38.32], [-79.47, 37.97], [-79.82, 37.82], [-79.97, 37.47], [-80.32, 37.32], [-80.47, 36.97], [-80.82, 36.82], [-80.97, 36.47], [-81.5, 36.25], [-81.75, 36.35], [-81.82, 36.32], [-81.97, 35.97], [-82.32, 35.82], [-82.47, 35.47], [-83.0, 35.25], [-83.25, 35.35], [-83.5, 35.25], [-83.75, 35.35], [-83.82, 35.32], [-83.97, 34.97], [-84.5, 34.75], [-84.75, 34.85], [-84.82, 34.82], [-84.85, 34.75], [-84.75, 34.5], [-84.85, 34.25], [-84.75, 34.0], [-84.97, 33.47], [-85.32, 33.32], [-85.47, 32.97], [-86.0, 32.75], [-86.25, 32.85], [-86.5, 32.75], [-86.75, 32.85], [-87.0, 32.75], [-87.25, 32.85], [-87.32, 32.82], [-87.47, 32.47], [-87.82, 32.32], [-87.97, 31.97], [-88.5, 31.75], [-89.03, 31.97], [-89.25, 32.5], [-89.03, 33.03], [-88.68, 33.18], [-88.65, 33.25], [-88.75, 33.5]]]]}, "2012-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.75, 33.5], [-88.53, 34.03], [-88.0, 34.25], [-87.75, 34.15], [-87.68, 34.18], [-87.53, 34.53], [-87.18, 34.68], [-87.03, 35.03], [-86.5, 35.25], [-86.25, 35.15], [-86.18, 35.18], [-86.03, 35.53], [-85.68, 35.68], [-85.53, 36.03], [-85.18, 36.18], [-85.15, 36.25], [-85.25, 36.5], [-85.03, 37.03], [-84.68, 37.18], [-84.53, 37.53], [-84.18, 37.68], [-84.15, 37.75], [-84.25, 38.0], [-84.15, 38.25], [-84.25, 38.5], [-84.03, 39.03], [-83.68, 39.18], [-83.53, 39.53], [-83.0, 39.75], [-82.75, 39.65], [-82.5, 39.75], [-82.25, 39.65], [-82.0, 39.75], [-81.75, 39.65], [-81.68, 39.68], [-81.53, 40.03], [-81.0, 40.25], [-80.75, 40.15], [-80.5, 40.25], [-80.25, 40.15], [-80.0, 40.25], [-79.47, 40.03], [-79.32, 39.68], [-78.97, 39.53], [-78.75, 39.0], [-78.97, 38.47], [-79.32, 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t2m anomaly over entire duration", "value": 9.19055359273439}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.487725627508894, 13.780919274315409, 13.522813600302698]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.53545037361181, 17.91807145093526, 17.84640017070609]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.216678696277032, 9.437481153236511, 8.917500928689613]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.544061167069913, 10.685010515299041, 10.177255376411836]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7303802623855487, 1.7783627553953845, 1.6868533032406061]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9179722051788335, 2.0225505964165174, 1.9362041000469812]}}