{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:18.710175", "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": "2020-Nov-19_to_2020-Nov-21_262.5_35.0"}, "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": 2020110001976}, "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 19 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 21 2020"}, "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": 81298.18524793973}, "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"]}, "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": 35.0}, "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": 262.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "262.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 260.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 267.25}, "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": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.15, 33.25], [-100.25, 33.5], [-100.03, 34.03], [-99.68, 34.18], [-99.53, 34.53], [-99.18, 34.68], [-99.03, 35.03], [-98.68, 35.18], [-98.53, 35.53], [-98.0, 35.75], [-97.75, 35.65], [-97.68, 35.68], [-97.53, 36.03], [-97.0, 36.25], [-96.75, 36.15], [-96.5, 36.25], [-96.25, 36.15], [-96.18, 36.18], [-96.03, 36.53], [-95.5, 36.75], [-95.25, 36.65], [-95.18, 36.68], [-95.03, 37.03], [-94.5, 37.25], [-94.25, 37.15], [-94.0, 37.25], [-93.75, 37.15], [-93.5, 37.25], [-93.25, 37.15], [-93.0, 37.25], [-92.47, 37.03], [-92.25, 36.5], [-92.47, 35.97], [-92.82, 35.82], [-92.97, 35.47], [-93.5, 35.25], [-93.75, 35.35], [-94.0, 35.25], [-94.25, 35.35], [-94.5, 35.25], [-94.75, 35.35], [-94.82, 35.32], [-94.97, 34.97], [-95.5, 34.75], [-95.75, 34.85], [-95.82, 34.82], [-95.97, 34.47], [-96.5, 34.25], [-96.75, 34.35], [-96.82, 34.32], [-96.97, 33.97], [-97.32, 33.82], [-97.47, 33.47], [-97.82, 33.32], [-97.85, 33.25], [-97.75, 33.0], [-97.85, 32.75], [-97.75, 32.5], [-97.97, 31.97], [-98.5, 31.75], [-98.75, 31.85], [-99.0, 31.75], [-99.25, 31.85], [-99.5, 31.75], [-100.03, 31.97], [-100.25, 32.5], [-100.15, 32.75], [-100.25, 33.0], [-100.15, 33.25]]]]}, "2020-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.15, 33.25], [-100.25, 33.5], [-100.03, 34.03], [-99.68, 34.18], [-99.53, 34.53], [-99.18, 34.68], [-99.03, 35.03], [-98.68, 35.18], [-98.53, 35.53], [-98.0, 35.75], [-97.75, 35.65], [-97.68, 35.68], [-97.53, 36.03], [-97.0, 36.25], [-96.75, 36.15], [-96.5, 36.25], [-96.25, 36.15], [-96.18, 36.18], [-96.03, 36.53], [-95.5, 36.75], [-95.25, 36.65], [-95.18, 36.68], [-95.03, 37.03], [-94.5, 37.25], [-94.25, 37.15], [-94.0, 37.25], [-93.75, 37.15], [-93.5, 37.25], [-93.25, 37.15], [-93.0, 37.25], [-92.47, 37.03], [-92.25, 36.5], [-92.47, 35.97], [-92.82, 35.82], [-92.97, 35.47], [-93.5, 35.25], [-93.75, 35.35], [-94.0, 35.25], [-94.25, 35.35], [-94.5, 35.25], [-94.75, 35.35], [-94.82, 35.32], [-94.97, 34.97], [-95.5, 34.75], [-95.75, 34.85], [-95.82, 34.82], [-95.97, 34.47], [-96.5, 34.25], [-96.75, 34.35], [-96.82, 34.32], [-96.97, 33.97], [-97.32, 33.82], [-97.47, 33.47], [-97.82, 33.32], [-97.85, 33.25], [-97.75, 33.0], [-97.85, 32.75], [-97.75, 32.5], [-97.97, 31.97], [-98.5, 31.75], [-98.75, 31.85], [-99.0, 31.75], [-99.25, 31.85], [-99.5, 31.75], [-100.03, 31.97], [-100.25, 32.5], [-100.15, 32.75], [-100.25, 33.0], [-100.15, 33.25]]]]}, "2020-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.15, 33.25], [-100.25, 33.5], [-100.03, 34.03], [-99.68, 34.18], [-99.53, 34.53], [-99.18, 34.68], [-99.03, 35.03], [-98.68, 35.18], [-98.53, 35.53], [-98.0, 35.75], [-97.75, 35.65], [-97.68, 35.68], [-97.53, 36.03], [-97.0, 36.25], [-96.75, 36.15], [-96.5, 36.25], [-96.25, 36.15], [-96.18, 36.18], [-96.03, 36.53], [-95.5, 36.75], [-95.25, 36.65], [-95.18, 36.68], [-95.03, 37.03], [-94.5, 37.25], [-94.25, 37.15], [-94.0, 37.25], [-93.75, 37.15], [-93.5, 37.25], [-93.25, 37.15], [-93.0, 37.25], [-92.47, 37.03], [-92.25, 36.5], [-92.47, 35.97], [-92.82, 35.82], [-92.97, 35.47], [-93.5, 35.25], [-93.75, 35.35], [-94.0, 35.25], [-94.25, 35.35], [-94.5, 35.25], [-94.75, 35.35], [-94.82, 35.32], [-94.97, 34.97], [-95.5, 34.75], [-95.75, 34.85], [-95.82, 34.82], [-95.97, 34.47], [-96.5, 34.25], [-96.75, 34.35], [-96.82, 34.32], [-96.97, 33.97], [-97.32, 33.82], [-97.47, 33.47], [-97.82, 33.32], [-97.85, 33.25], [-97.75, 33.0], [-97.85, 32.75], [-97.75, 32.5], [-97.97, 31.97], [-98.5, 31.75], [-98.75, 31.85], [-99.0, 31.75], [-99.25, 31.85], [-99.5, 31.75], [-100.03, 31.97], [-100.25, 32.5], [-100.15, 32.75], [-100.25, 33.0], [-100.15, 33.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.167252999788104}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.390928219686522}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.141723526093188, 18.20997166697896, 17.282105758697924]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.105638076087473, 19.703307968744355, 19.435077819535934]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.861171337092767, 8.06182737570387, 7.249785946262927]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.696219151358662, 9.167252999788104, 8.486223362820567]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4306214295055744, 1.680997826339705, 1.517122378771812]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6103078018422463, 1.9198017473792817, 1.8006894730187064]}}