{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:13.226280", "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-Feb-26_to_2024-Feb-28_273.0_36.5"}, "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": 2024020001804}, "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": "February 26 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 28 2024"}, "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": 91900.08052155067}, "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": 36.5}, "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": 273.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "273.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 270.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 38.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.18, 35.68], [-89.03, 36.03], [-88.5, 36.25], [-88.25, 36.15], [-88.18, 36.18], [-88.03, 36.53], [-87.68, 36.68], [-87.53, 37.03], [-87.0, 37.25], [-86.75, 37.15], [-86.5, 37.25], [-86.25, 37.15], [-86.18, 37.18], [-86.03, 37.53], [-85.5, 37.75], [-85.25, 37.65], [-85.18, 37.68], [-85.15, 37.75], [-85.25, 38.0], [-85.15, 38.25], [-85.25, 38.5], [-85.03, 39.03], [-84.5, 39.25], [-84.25, 39.15], [-84.0, 39.25], [-83.75, 39.15], [-83.5, 39.25], [-83.25, 39.15], [-83.0, 39.25], [-82.47, 39.03], [-82.25, 38.5], [-82.35, 38.25], [-82.25, 38.0], [-82.35, 37.75], [-82.25, 37.5], [-82.47, 36.97], [-83.0, 36.75], [-83.25, 36.85], [-83.5, 36.75], [-83.75, 36.85], [-83.82, 36.82], [-83.97, 36.47], [-84.32, 36.32], [-84.47, 35.97], [-84.82, 35.82], [-84.97, 35.47], [-85.5, 35.25], [-85.75, 35.35], [-85.82, 35.32], [-85.97, 34.97], [-86.32, 34.82], [-86.47, 34.47], [-87.0, 34.25], [-87.25, 34.35], [-87.5, 34.25], [-87.75, 34.35], [-88.0, 34.25], [-88.25, 34.35], [-88.32, 34.32], [-88.47, 33.97], [-89.0, 33.75], [-89.25, 33.85], [-89.5, 33.75], [-90.03, 33.97], [-90.25, 34.5], [-90.03, 35.03], [-89.68, 35.18], [-89.53, 35.53], [-89.18, 35.68]]]]}, "2024-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.18, 35.68], [-89.03, 36.03], [-88.5, 36.25], [-88.25, 36.15], [-88.18, 36.18], [-88.03, 36.53], [-87.68, 36.68], [-87.53, 37.03], [-87.0, 37.25], [-86.75, 37.15], [-86.5, 37.25], [-86.25, 37.15], [-86.18, 37.18], [-86.03, 37.53], [-85.5, 37.75], [-85.25, 37.65], [-85.18, 37.68], [-85.15, 37.75], [-85.25, 38.0], [-85.15, 38.25], [-85.25, 38.5], [-85.03, 39.03], [-84.5, 39.25], [-84.25, 39.15], [-84.0, 39.25], [-83.75, 39.15], [-83.5, 39.25], [-83.25, 39.15], [-83.0, 39.25], [-82.47, 39.03], [-82.25, 38.5], [-82.35, 38.25], [-82.25, 38.0], [-82.35, 37.75], [-82.25, 37.5], [-82.47, 36.97], [-83.0, 36.75], [-83.25, 36.85], [-83.5, 36.75], [-83.75, 36.85], [-83.82, 36.82], [-83.97, 36.47], [-84.32, 36.32], [-84.47, 35.97], [-84.82, 35.82], [-84.97, 35.47], [-85.5, 35.25], [-85.75, 35.35], [-85.82, 35.32], [-85.97, 34.97], [-86.32, 34.82], [-86.47, 34.47], [-87.0, 34.25], [-87.25, 34.35], [-87.5, 34.25], [-87.75, 34.35], [-88.0, 34.25], [-88.25, 34.35], [-88.32, 34.32], [-88.47, 33.97], [-89.0, 33.75], [-89.25, 33.85], [-89.5, 33.75], [-90.03, 33.97], [-90.25, 34.5], [-90.03, 35.03], [-89.68, 35.18], [-89.53, 35.53], [-89.18, 35.68]]]]}, "2024-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.18, 35.68], [-89.03, 36.03], [-88.5, 36.25], [-88.25, 36.15], [-88.18, 36.18], [-88.03, 36.53], [-87.68, 36.68], [-87.53, 37.03], [-87.0, 37.25], [-86.75, 37.15], [-86.5, 37.25], [-86.25, 37.15], [-86.18, 37.18], [-86.03, 37.53], [-85.5, 37.75], [-85.25, 37.65], [-85.18, 37.68], [-85.15, 37.75], [-85.25, 38.0], [-85.15, 38.25], [-85.25, 38.5], [-85.03, 39.03], [-84.5, 39.25], [-84.25, 39.15], [-84.0, 39.25], [-83.75, 39.15], [-83.5, 39.25], [-83.25, 39.15], [-83.0, 39.25], [-82.47, 39.03], [-82.25, 38.5], [-82.35, 38.25], [-82.25, 38.0], [-82.35, 37.75], [-82.25, 37.5], [-82.47, 36.97], [-83.0, 36.75], [-83.25, 36.85], [-83.5, 36.75], [-83.75, 36.85], [-83.82, 36.82], [-83.97, 36.47], [-84.32, 36.32], [-84.47, 35.97], [-84.82, 35.82], [-84.97, 35.47], [-85.5, 35.25], [-85.75, 35.35], [-85.82, 35.32], [-85.97, 34.97], [-86.32, 34.82], [-86.47, 34.47], [-87.0, 34.25], [-87.25, 34.35], [-87.5, 34.25], [-87.75, 34.35], [-88.0, 34.25], [-88.25, 34.35], [-88.32, 34.32], [-88.47, 33.97], [-89.0, 33.75], [-89.25, 33.85], [-89.5, 33.75], [-90.03, 33.97], [-90.25, 34.5], [-90.03, 35.03], [-89.68, 35.18], [-89.53, 35.53], [-89.18, 35.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.819651677610523}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.286951469952754}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.376421704653637, 18.404236898022134, 15.3951219286227]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.580049968424987, 21.06709696174363, 17.705049786381835]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.380428643276629, 11.28815303524916, 8.192272731332482]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.72044125636171, 12.819651677610523, 9.410780945762667]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5234380784947714, 2.0698069683756253, 1.527816761212806]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.752582403272229, 2.331129299278468, 1.6761660163308536]}}