{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:04.584129", "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-07_to_2012-Dec-09_272.0_36.0"}, "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": 2012120001697}, "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 07 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 09 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": 261930.74932756534}, "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": ["C.North-America", "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": 36.0}, "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": 272.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "272.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 266.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 274.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.25, 35.5], [-94.03, 36.03], [-93.62, 36.2], [-93.75, 36.5], [-93.53, 37.03], [-93.18, 37.18], [-93.03, 37.53], [-92.5, 37.75], [-92.25, 37.65], [-92.0, 37.75], [-91.75, 37.65], [-91.68, 37.68], [-91.53, 38.03], [-91.0, 38.25], [-90.75, 38.15], [-90.68, 38.18], [-90.53, 38.53], [-90.0, 38.75], [-89.75, 38.65], [-89.68, 38.68], [-89.53, 39.03], [-89.0, 39.25], [-88.75, 39.15], [-88.68, 39.18], [-88.53, 39.53], [-88.0, 39.75], [-87.47, 39.53], [-87.32, 39.18], [-86.97, 39.03], [-86.75, 38.5], [-86.85, 38.25], [-86.8, 38.12], [-86.5, 38.25], [-86.25, 38.15], [-86.0, 38.25], [-85.47, 38.03], [-85.25, 37.5], [-85.35, 37.25], [-85.32, 37.18], [-84.97, 37.03], [-84.75, 36.5], [-84.97, 35.97], [-85.32, 35.82], [-85.47, 35.47], [-86.0, 35.25], [-86.25, 35.35], [-86.32, 35.32], [-86.47, 34.97], [-87.0, 34.75], [-87.25, 34.85], [-87.32, 34.82], [-87.47, 34.47], [-87.82, 34.32], [-87.97, 33.97], [-88.32, 33.82], [-88.47, 33.47], [-89.0, 33.25], [-89.25, 33.35], [-89.5, 33.25], [-89.75, 33.35], [-90.0, 33.25], [-90.5, 33.46], [-91.0, 33.25], [-91.25, 33.35], [-91.5, 33.25], [-91.75, 33.35], [-92.0, 33.25], [-92.53, 33.47], [-92.68, 33.82], [-93.03, 33.97], [-93.18, 34.32], [-93.53, 34.47], [-93.68, 34.82], [-94.03, 34.97], [-94.25, 35.5]]]]}, "2012-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.25, 35.5], [-94.03, 36.03], [-93.62, 36.2], [-93.75, 36.5], [-93.53, 37.03], [-93.18, 37.18], [-93.03, 37.53], [-92.5, 37.75], [-92.25, 37.65], [-92.0, 37.75], [-91.75, 37.65], [-91.68, 37.68], [-91.53, 38.03], [-91.0, 38.25], [-90.75, 38.15], [-90.68, 38.18], [-90.53, 38.53], [-90.0, 38.75], [-89.75, 38.65], [-89.68, 38.68], [-89.53, 39.03], [-89.0, 39.25], [-88.75, 39.15], [-88.68, 39.18], [-88.53, 39.53], [-88.0, 39.75], [-87.47, 39.53], [-87.32, 39.18], [-86.97, 39.03], [-86.75, 38.5], [-86.85, 38.25], [-86.8, 38.12], [-86.5, 38.25], [-86.25, 38.15], [-86.0, 38.25], [-85.47, 38.03], [-85.25, 37.5], [-85.35, 37.25], [-85.32, 37.18], [-84.97, 37.03], [-84.75, 36.5], [-84.97, 35.97], [-85.32, 35.82], [-85.47, 35.47], [-86.0, 35.25], [-86.25, 35.35], [-86.32, 35.32], [-86.47, 34.97], [-87.0, 34.75], [-87.25, 34.85], [-87.32, 34.82], [-87.47, 34.47], [-87.82, 34.32], [-87.97, 33.97], [-88.32, 33.82], [-88.47, 33.47], [-89.0, 33.25], [-89.25, 33.35], [-89.5, 33.25], [-89.75, 33.35], [-90.0, 33.25], [-90.5, 33.46], [-91.0, 33.25], [-91.25, 33.35], [-91.5, 33.25], [-91.75, 33.35], [-92.0, 33.25], [-92.53, 33.47], [-92.68, 33.82], [-93.03, 33.97], [-93.18, 34.32], [-93.53, 34.47], [-93.68, 34.82], [-94.03, 34.97], [-94.25, 35.5]]]]}, "2012-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.25, 35.5], [-94.03, 36.03], [-93.62, 36.2], [-93.75, 36.5], [-93.53, 37.03], [-93.18, 37.18], [-93.03, 37.53], [-92.5, 37.75], [-92.25, 37.65], [-92.0, 37.75], [-91.75, 37.65], [-91.68, 37.68], [-91.53, 38.03], [-91.0, 38.25], [-90.75, 38.15], [-90.68, 38.18], [-90.53, 38.53], [-90.0, 38.75], [-89.75, 38.65], [-89.68, 38.68], [-89.53, 39.03], [-89.0, 39.25], [-88.75, 39.15], [-88.68, 39.18], [-88.53, 39.53], [-88.0, 39.75], [-87.47, 39.53], [-87.32, 39.18], [-86.97, 39.03], [-86.75, 38.5], [-86.85, 38.25], [-86.8, 38.12], [-86.5, 38.25], [-86.25, 38.15], [-86.0, 38.25], [-85.47, 38.03], [-85.25, 37.5], [-85.35, 37.25], [-85.32, 37.18], [-84.97, 37.03], [-84.75, 36.5], [-84.97, 35.97], [-85.32, 35.82], [-85.47, 35.47], [-86.0, 35.25], [-86.25, 35.35], [-86.32, 35.32], [-86.47, 34.97], [-87.0, 34.75], [-87.25, 34.85], [-87.32, 34.82], [-87.47, 34.47], [-87.82, 34.32], [-87.97, 33.97], [-88.32, 33.82], [-88.47, 33.47], [-89.0, 33.25], [-89.25, 33.35], [-89.5, 33.25], [-89.75, 33.35], [-90.0, 33.25], [-90.5, 33.46], [-91.0, 33.25], [-91.25, 33.35], [-91.5, 33.25], [-91.75, 33.35], [-92.0, 33.25], [-92.53, 33.47], [-92.68, 33.82], [-93.03, 33.97], [-93.18, 34.32], [-93.53, 34.47], [-93.68, 34.82], [-94.03, 34.97], [-94.25, 35.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.566406444434449}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.516901907524637}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.14021393687807, 14.441388325521018, 15.312722284890583]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.39611452513327, 17.49677565067941, 18.79978187886269]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.017090276707659, 9.417152729109002, 10.11646271675725]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.379453694820029, 10.907367568092809, 11.566406444434449]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6544747031899447, 1.7322355396405016, 1.8586855258434178]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8808039582337095, 1.9726495190057147, 2.062136435588138]}}