{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:46.783790", "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-Oct-07_to_2020-Oct-12_263.5_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": 2020100001405}, "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": "October 07 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 12 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 292137.29506180465}, "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": 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": 263.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "263.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 259.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.75}, "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": 42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.0, 41.25], [-98.75, 41.15], [-98.5, 41.25], [-97.97, 41.03], [-97.82, 40.68], [-97.75, 40.65], [-97.5, 40.75], [-97.25, 40.65], [-97.0, 40.75], [-96.75, 40.65], [-96.5, 40.75], [-95.97, 40.53], [-95.75, 40.0], [-95.85, 39.75], [-95.75, 39.5], [-95.85, 39.25], [-95.82, 39.18], [-95.47, 39.03], [-95.25, 38.5], [-95.47, 37.97], [-96.0, 37.75], [-96.53, 37.97], [-96.68, 38.32], [-97.03, 38.47], [-97.25, 39.0], [-97.35, 38.75], [-97.25, 38.5], [-97.47, 37.97], [-98.0, 37.75], [-98.25, 37.85], [-98.5, 37.75], [-98.75, 37.85], [-99.0, 37.75], [-99.53, 37.97], [-99.75, 38.5], [-99.53, 39.03], [-99.18, 39.18], [-99.12, 39.3], [-99.25, 39.35], [-99.5, 39.25], [-100.03, 39.47], [-100.25, 40.0], [-100.03, 40.53], [-99.68, 40.68], [-99.53, 41.03], [-99.0, 41.25]], [[-97.15, 39.25], [-97.18, 39.32], [-97.25, 39.35], [-97.37, 39.3], [-97.25, 39.0], [-97.15, 39.25]]]]}, "2020-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.0, 41.25], [-98.75, 41.15], [-98.5, 41.25], [-97.97, 41.03], [-97.82, 40.68], [-97.75, 40.65], [-97.5, 40.75], [-97.25, 40.65], [-97.0, 40.75], [-96.75, 40.65], [-96.5, 40.75], [-95.97, 40.53], [-95.82, 40.18], [-95.47, 40.03], [-95.25, 39.5], [-95.03, 40.03], [-94.5, 40.25], [-93.97, 40.03], [-93.75, 39.5], [-93.97, 38.97], [-94.5, 38.75], [-94.93, 38.93], [-94.75, 38.5], [-94.85, 38.25], [-94.75, 38.0], [-94.97, 37.47], [-95.5, 37.25], [-95.75, 37.35], [-95.82, 37.32], [-95.97, 36.97], [-96.5, 36.75], [-97.0, 36.96], [-97.5, 36.75], [-97.75, 36.85], [-98.0, 36.75], [-98.53, 36.97], [-98.75, 37.5], [-98.65, 37.75], [-98.68, 37.82], [-98.75, 37.85], [-99.0, 37.75], [-99.53, 37.97], [-99.75, 38.5], [-99.53, 39.03], [-99.18, 39.18], [-99.15, 39.25], [-99.18, 39.32], [-99.25, 39.35], [-99.5, 39.25], [-100.03, 39.47], [-100.25, 40.0], [-100.03, 40.53], [-99.68, 40.68], [-99.53, 41.03], [-99.0, 41.25]], [[-95.35, 39.25], [-95.32, 39.18], [-95.07, 39.07], [-95.25, 39.5], [-95.35, 39.25]]]]}, "2020-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.75, 40.5], [-100.53, 41.03], [-100.0, 41.25], [-99.75, 41.15], [-99.5, 41.25], [-99.25, 41.15], [-99.0, 41.25], [-98.75, 41.15], [-98.5, 41.25], [-97.97, 41.03], [-97.82, 40.68], [-97.75, 40.65], [-97.68, 40.68], [-97.53, 41.03], [-97.18, 41.18], [-97.03, 41.53], [-96.68, 41.68], [-96.53, 42.03], [-96.18, 42.18], [-96.03, 42.53], [-95.5, 42.75], [-95.25, 42.65], [-95.18, 42.68], [-95.03, 43.03], [-94.5, 43.25], [-94.25, 43.15], [-94.0, 43.25], [-93.47, 43.03], [-93.32, 42.68], [-92.97, 42.53], [-92.82, 42.18], [-92.75, 42.15], [-92.5, 42.25], [-92.25, 42.15], [-92.0, 42.25], [-91.47, 42.03], [-91.25, 41.5], [-91.46, 41.0], [-91.25, 40.5], [-91.35, 40.25], [-91.25, 40.0], [-91.35, 39.75], [-91.25, 39.5], [-91.47, 38.97], [-91.82, 38.82], [-91.97, 38.47], [-92.32, 38.32], [-92.47, 37.97], [-92.82, 37.82], [-92.97, 37.47], [-93.5, 37.25], [-93.75, 37.35], [-94.0, 37.25], [-94.53, 37.47], [-94.68, 37.82], [-94.75, 37.85], [-94.82, 37.82], [-94.97, 37.47], [-95.5, 37.25], [-95.75, 37.35], [-95.82, 37.32], [-95.97, 36.97], [-96.5, 36.75], [-97.0, 36.96], [-97.5, 36.75], [-97.75, 36.85], [-98.0, 36.75], [-98.53, 36.97], [-98.75, 37.5], [-98.65, 37.75], [-98.68, 37.82], [-98.75, 37.85], [-99.0, 37.75], [-99.53, 37.97], [-99.75, 38.5], [-99.53, 39.03], [-99.18, 39.18], [-99.15, 39.25], [-99.18, 39.32], [-99.25, 39.35], [-99.5, 39.25], [-100.03, 39.47], [-100.18, 39.82], [-100.53, 39.97], [-100.75, 40.5]]]]}, "2020-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.75, 40.5], [-100.53, 41.03], [-100.0, 41.25], [-99.75, 41.15], [-99.5, 41.25], [-98.97, 41.03], [-98.82, 40.68], [-98.5, 40.54], [-98.0, 40.75], [-97.75, 40.65], [-97.68, 40.68], [-97.53, 41.03], [-97.18, 41.18], [-97.03, 41.53], [-96.68, 41.68], [-96.53, 42.03], [-96.18, 42.18], [-96.03, 42.53], [-95.5, 42.75], [-95.25, 42.65], [-95.18, 42.68], [-95.03, 43.03], [-94.5, 43.25], [-94.25, 43.15], [-94.0, 43.25], [-93.47, 43.03], [-93.32, 42.68], [-92.97, 42.53], [-92.82, 42.18], [-92.75, 42.15], [-92.5, 42.25], [-92.25, 42.15], [-92.0, 42.25], [-91.5, 42.04], [-91.0, 42.25], [-90.47, 42.03], [-90.25, 41.5], [-90.35, 41.25], [-90.25, 41.0], [-90.35, 40.75], [-90.32, 40.68], [-89.97, 40.53], [-89.75, 40.0], [-89.97, 39.47], [-90.32, 39.32], [-90.47, 38.97], [-90.82, 38.82], [-90.85, 38.75], [-90.75, 38.5], [-90.97, 37.97], [-91.5, 37.75], [-91.75, 37.85], [-92.0, 37.75], [-92.25, 37.85], [-92.32, 37.82], [-92.47, 37.47], [-92.82, 37.32], [-92.97, 36.97], [-93.5, 36.75], [-93.75, 36.85], [-94.0, 36.75], [-94.53, 36.97], [-94.75, 37.5], [-94.65, 37.75], [-94.68, 37.82], [-94.75, 37.85], [-94.82, 37.82], [-94.97, 37.47], [-95.5, 37.25], [-95.75, 37.35], [-95.82, 37.32], [-95.97, 36.97], [-96.5, 36.75], [-97.0, 36.96], [-97.5, 36.75], [-97.75, 36.85], [-98.0, 36.75], [-98.53, 36.97], [-98.75, 37.5], [-98.65, 37.75], [-98.75, 38.0], [-98.65, 38.25], [-98.75, 38.5], [-98.65, 38.75], [-98.68, 38.82], [-99.03, 38.97], [-99.18, 39.32], [-99.25, 39.35], [-99.5, 39.25], [-100.03, 39.47], [-100.18, 39.82], [-100.53, 39.97], [-100.75, 40.5]]]]}, "2020-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.75, 40.5], [-100.53, 41.03], [-100.0, 41.25], [-99.75, 41.15], [-99.5, 41.25], [-98.97, 41.03], [-98.82, 40.68], [-98.5, 40.54], [-98.0, 40.75], [-97.75, 40.65], [-97.68, 40.68], [-97.53, 41.03], [-97.18, 41.18], [-97.03, 41.53], [-96.68, 41.68], [-96.53, 42.03], [-96.18, 42.18], [-96.03, 42.53], [-95.5, 42.75], [-95.25, 42.65], [-95.18, 42.68], [-95.03, 43.03], [-94.5, 43.25], [-94.25, 43.15], [-94.0, 43.25], [-93.47, 43.03], [-93.32, 42.68], [-92.97, 42.53], [-92.82, 42.18], [-92.75, 42.15], [-92.5, 42.25], [-92.25, 42.15], [-92.0, 42.25], [-91.5, 42.04], [-91.0, 42.25], [-90.47, 42.03], [-90.25, 41.5], [-90.35, 41.25], [-90.25, 41.0], [-90.35, 40.75], [-90.32, 40.68], [-89.97, 40.53], [-89.75, 40.0], [-89.97, 39.47], [-90.32, 39.32], [-90.47, 38.97], [-90.82, 38.82], [-90.85, 38.75], [-90.75, 38.5], [-90.97, 37.97], [-91.5, 37.75], [-91.75, 37.85], [-92.0, 37.75], [-92.25, 37.85], [-92.32, 37.82], [-92.47, 37.47], [-92.82, 37.32], [-92.97, 36.97], [-93.5, 36.75], [-93.75, 36.85], [-94.0, 36.75], [-94.53, 36.97], [-94.75, 37.5], [-94.65, 37.75], [-94.68, 37.82], [-94.75, 37.85], [-94.82, 37.82], [-94.97, 37.47], [-95.5, 37.25], [-95.75, 37.35], [-95.82, 37.32], [-95.97, 36.97], [-96.5, 36.75], [-97.0, 36.96], [-97.5, 36.75], [-97.75, 36.85], [-98.0, 36.75], [-98.53, 36.97], [-98.75, 37.5], [-98.65, 37.75], [-98.75, 38.0], [-98.65, 38.25], [-98.75, 38.5], [-98.65, 38.75], [-98.68, 38.82], [-99.03, 38.97], [-99.18, 39.32], [-99.25, 39.35], [-99.5, 39.25], [-100.03, 39.47], [-100.18, 39.82], [-100.53, 39.97], [-100.75, 40.5]]]]}, "2020-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.75, 38.0], [-96.53, 38.53], [-96.0, 38.75], [-95.75, 38.65], [-95.5, 38.75], [-94.97, 38.53], [-94.75, 38.0], [-94.97, 37.47], [-95.5, 37.25], [-95.75, 37.35], [-96.0, 37.25], [-96.53, 37.47], [-96.75, 38.0]]], [[[-94.03, 39.03], [-93.68, 39.18], [-93.65, 39.25], [-93.75, 39.5], [-93.53, 40.03], [-93.0, 40.25], [-92.75, 40.15], [-92.68, 40.18], [-92.53, 40.53], [-92.18, 40.68], [-92.03, 41.03], [-91.68, 41.18], [-91.65, 41.25], [-91.75, 41.5], [-91.53, 42.03], [-91.0, 42.25], [-90.47, 42.03], [-90.25, 41.5], [-90.35, 41.25], [-90.25, 41.0], [-90.35, 40.75], [-90.32, 40.68], [-89.97, 40.53], [-89.75, 40.0], [-89.97, 39.47], [-90.32, 39.32], [-90.47, 38.97], [-90.82, 38.82], [-90.85, 38.75], [-90.75, 38.5], [-90.97, 37.97], [-91.5, 37.75], [-91.75, 37.85], [-92.0, 37.75], [-92.25, 37.85], [-92.32, 37.82], [-92.47, 37.47], [-92.82, 37.32], [-92.97, 36.97], [-93.5, 36.75], [-93.75, 36.85], [-94.0, 36.75], [-94.53, 36.97], [-94.75, 37.5], [-94.65, 37.75], [-94.75, 38.0], [-94.53, 38.53], [-94.18, 38.68], [-94.03, 39.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.325346829132002}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.269272175039611}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.437885656632318, 21.63300909023627, 22.121953052986328, 21.038600740334232, 21.498819845862613, 20.31675605285949]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.272227764905324, 22.77313984651795, 24.13589735202413, 22.15292524697776, 23.3064710906109, 21.218604984294814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.500251554262354, 6.535548060786528, 7.882094626130222, 6.948815724730707, 7.671942892633794, 6.109845202861987]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.993195075679466, 7.158840603491967, 10.325346829132002, 8.298228927472167, 9.437373495822442, 6.434946164282337]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.412492332371632, 1.4344352397714242, 1.7047159443919941, 1.5374151678762034, 1.7112694355418803, 1.3931272924698987]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4967061515296674, 1.6000905842914572, 2.181484573255977, 1.793782558865027, 2.066523346474219, 1.4972017974448044]}}