{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:39.420275", "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": "2018-Nov-30_to_2018-Dec-02_272.0_32.5"}, "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": 2018110003130}, "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": "November 30 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 02 2018"}, "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": 80170.16288338596}, "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": 32.5}, "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": 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": 270.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.03, 32.53], [-89.68, 32.68], [-89.53, 33.03], [-89.18, 33.18], [-89.03, 33.53], [-88.68, 33.68], [-88.65, 33.75], [-88.75, 34.0], [-88.53, 34.53], [-88.18, 34.68], [-88.15, 34.75], [-88.25, 35.0], [-88.03, 35.53], [-87.68, 35.68], [-87.54, 36.0], [-87.75, 36.5], [-87.53, 37.03], [-87.0, 37.25], [-86.75, 37.15], [-86.5, 37.25], [-85.97, 37.03], [-85.75, 36.5], [-85.85, 36.25], [-85.75, 36.0], [-85.97, 35.47], [-86.32, 35.32], [-86.35, 35.25], [-86.25, 35.0], [-86.35, 34.75], [-86.25, 34.5], [-86.35, 34.25], [-86.25, 34.0], [-86.47, 33.47], [-86.82, 33.32], [-86.85, 33.25], [-86.75, 33.0], [-86.85, 32.75], [-86.75, 32.5], [-86.85, 32.25], [-86.75, 32.0], [-86.85, 31.75], [-86.75, 31.5], [-86.97, 30.97], [-87.32, 30.82], [-87.47, 30.47], [-87.82, 30.32], [-87.97, 29.97], [-88.5, 29.75], [-89.03, 29.97], [-89.25, 30.5], [-89.15, 30.75], [-89.2, 30.88], [-89.5, 30.75], [-90.03, 30.97], [-90.25, 31.5], [-90.15, 31.75], [-90.25, 32.0], [-90.03, 32.53]]]]}, "2018-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.03, 32.53], [-89.68, 32.68], [-89.53, 33.03], [-89.18, 33.18], [-89.03, 33.53], [-88.68, 33.68], [-88.65, 33.75], [-88.75, 34.0], [-88.53, 34.53], [-88.18, 34.68], [-88.15, 34.75], [-88.25, 35.0], [-88.03, 35.53], [-87.68, 35.68], [-87.54, 36.0], [-87.75, 36.5], [-87.53, 37.03], [-87.0, 37.25], [-86.75, 37.15], [-86.5, 37.25], [-85.97, 37.03], [-85.75, 36.5], [-85.85, 36.25], [-85.75, 36.0], [-85.97, 35.47], [-86.32, 35.32], [-86.35, 35.25], [-86.25, 35.0], [-86.35, 34.75], [-86.25, 34.5], [-86.35, 34.25], [-86.25, 34.0], [-86.47, 33.47], [-86.82, 33.32], [-86.85, 33.25], [-86.75, 33.0], [-86.85, 32.75], [-86.75, 32.5], [-86.85, 32.25], [-86.75, 32.0], [-86.85, 31.75], [-86.75, 31.5], [-86.97, 30.97], [-87.32, 30.82], [-87.47, 30.47], [-87.82, 30.32], [-87.97, 29.97], [-88.5, 29.75], [-89.03, 29.97], [-89.25, 30.5], [-89.15, 30.75], [-89.2, 30.88], [-89.5, 30.75], [-90.03, 30.97], [-90.25, 31.5], [-90.15, 31.75], [-90.25, 32.0], [-90.03, 32.53]]]]}, "2018-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.03, 32.53], [-89.68, 32.68], [-89.53, 33.03], [-89.18, 33.18], [-89.03, 33.53], [-88.68, 33.68], [-88.65, 33.75], [-88.75, 34.0], [-88.53, 34.53], [-88.18, 34.68], [-88.15, 34.75], [-88.25, 35.0], [-88.03, 35.53], [-87.68, 35.68], [-87.54, 36.0], [-87.75, 36.5], [-87.53, 37.03], [-87.0, 37.25], [-86.75, 37.15], [-86.5, 37.25], [-85.97, 37.03], [-85.75, 36.5], [-85.85, 36.25], [-85.75, 36.0], [-85.97, 35.47], [-86.32, 35.32], [-86.35, 35.25], [-86.25, 35.0], [-86.35, 34.75], [-86.25, 34.5], [-86.35, 34.25], [-86.25, 34.0], [-86.47, 33.47], [-86.82, 33.32], [-86.85, 33.25], [-86.75, 33.0], [-86.85, 32.75], [-86.75, 32.5], [-86.85, 32.25], [-86.75, 32.0], [-86.85, 31.75], [-86.75, 31.5], [-86.97, 30.97], [-87.32, 30.82], [-87.47, 30.47], [-87.82, 30.32], [-87.97, 29.97], [-88.5, 29.75], [-89.03, 29.97], [-89.25, 30.5], [-89.15, 30.75], [-89.2, 30.88], [-89.5, 30.75], [-90.03, 30.97], [-90.25, 31.5], [-90.15, 31.75], [-90.25, 32.0], [-90.03, 32.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.556069928274042}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.7293197643002465}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.749991624617792, 18.389119281500598, 18.57600587176853]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.577456987997778, 21.488887714579676, 21.784862691905403]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.25073318377408, 7.908573991824323, 8.028652117302345]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.22069435250802, 9.556069928274042, 9.365809576389722]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5272091652325723, 1.6523322995252474, 1.6528991092640435]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7227264455854887, 1.9334193939079007, 1.9475157567530375]}}