{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:19.342737", "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": "2016-Sep-18_to_2016-Sep-21_241.5_40.0"}, "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": 2016090002105}, "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": "September 18 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 21 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 52393.274968999}, "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": ["W.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": 40.0}, "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": 241.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "241.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 239.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 242.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-120.18, 39.82], [-120.53, 39.97], [-120.75, 40.5], [-120.53, 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41.5], [-119.53, 42.03], [-119.0, 42.25], [-118.75, 42.15], [-118.5, 42.25], [-118.25, 42.15], [-118.0, 42.25], [-117.47, 42.03], [-117.25, 41.5], [-117.47, 40.97], [-118.0, 40.75], [-117.75, 40.65], [-117.5, 40.75], [-116.97, 40.53], [-116.75, 40.0], [-116.97, 39.47], [-117.32, 39.32], [-117.35, 39.25], [-117.25, 39.0], [-117.47, 38.47], [-117.87, 38.3], [-117.75, 38.0], [-117.85, 37.75], [-117.75, 37.5], [-117.97, 36.97], [-118.5, 36.75], [-118.75, 36.85], [-119.0, 36.75], [-119.53, 36.97], [-119.75, 37.5], [-119.62, 37.8], [-119.75, 37.85], [-120.0, 37.75], [-120.53, 37.97], [-120.75, 38.5], [-120.53, 39.03], [-120.18, 39.18], [-120.04, 39.5], [-120.18, 39.82]], [[-118.25, 40.85], [-118.32, 40.82], [-118.37, 40.7], [-118.25, 40.65], [-118.0, 40.75], [-118.25, 40.85]]]]}, "2016-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-120.18, 39.82], [-120.53, 39.97], [-120.75, 40.5], [-120.53, 41.03], [-120.0, 41.25], [-119.75, 41.15], [-119.68, 41.18], [-119.65, 41.25], [-119.75, 41.5], [-119.53, 42.03], [-119.0, 42.25], [-118.75, 42.15], [-118.5, 42.25], [-118.25, 42.15], [-118.0, 42.25], [-117.47, 42.03], [-117.25, 41.5], [-117.47, 40.97], [-118.0, 40.75], [-117.75, 40.65], [-117.5, 40.75], [-116.97, 40.53], [-116.75, 40.0], [-116.97, 39.47], [-117.32, 39.32], [-117.35, 39.25], [-117.25, 39.0], [-117.47, 38.47], [-117.87, 38.3], [-117.75, 38.0], [-117.85, 37.75], [-117.75, 37.5], [-117.97, 36.97], [-118.5, 36.75], [-118.75, 36.85], [-119.0, 36.75], [-119.53, 36.97], [-119.75, 37.5], [-119.62, 37.8], [-119.75, 37.85], [-120.0, 37.75], [-120.53, 37.97], [-120.75, 38.5], [-120.53, 39.03], [-120.18, 39.18], [-120.04, 39.5], [-120.18, 39.82]], [[-118.25, 40.85], [-118.32, 40.82], [-118.37, 40.7], [-118.25, 40.65], [-118.0, 40.75], [-118.25, 40.85]]]]}, "2016-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.15, 39.75], [-119.25, 40.0], [-119.03, 40.53], [-118.5, 40.75], [-118.25, 40.65], [-118.0, 40.75], [-117.75, 40.65], [-117.5, 40.75], [-116.97, 40.53], [-116.75, 40.0], [-116.97, 39.47], [-117.32, 39.32], [-117.35, 39.25], [-117.25, 39.0], [-117.47, 38.47], [-118.0, 38.25], [-118.25, 38.35], [-118.5, 38.25], [-119.03, 38.47], [-119.25, 39.0], [-119.15, 39.25], [-119.25, 39.5], [-119.15, 39.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.164003187736512}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.9782848996347795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.95595175628847, 22.285007617877795, 22.068077063961823, 23.714512945483875]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.282924267224473, 25.461551107161256, 25.713396605111086, 24.75588335760756]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.657515180924497, 5.17190793526135, 5.060753095285471, 4.7979332842854205]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.699773762975383, 6.164003187736512, 6.0281619890737375, 5.134511582306004]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.281834625430146, 1.3629292098605985, 1.2972094724222574, 1.1794220973506886]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.451859103204241, 1.5662262846249027, 1.5579994737745158, 1.2990667480193003]}}