{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:37.916943", "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": "2019-Apr-24_to_2019-Apr-28_31.5_52.5"}, "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": 2019040002576}, "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": "April 24 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 400422.0881532831}, "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": ["Belarus", "Russian Federation", "Ukraine"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Europe"]}, "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": 52.5}, "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": 31.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "31.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.75, 51.0], [35.97, 51.53], [36.5, 51.75], [37.03, 51.53], [37.25, 51.0], [37.03, 50.47], [36.5, 50.25], [35.97, 50.47], [35.75, 51.0]]], [[[30.75, 52.5], [30.97, 53.03], [31.5, 53.25], [32.03, 53.03], [32.25, 52.5], [32.03, 51.97], [31.5, 51.75], [30.97, 51.97], [30.75, 52.5]]], [[[36.97, 53.03], [37.5, 53.25], [37.75, 53.15], [38.0, 53.25], [38.3, 53.13], [38.47, 53.53], [39.0, 53.75], [39.53, 53.53], [39.75, 53.0], [39.53, 52.47], [39.0, 52.25], [38.7, 52.38], [38.53, 51.97], [38.0, 51.75], [37.75, 51.85], [37.5, 51.75], [36.97, 51.97], [36.75, 52.5], [36.97, 53.03]]], [[[33.0, 55.25], [33.53, 55.03], [33.68, 54.68], [33.8, 54.63], [33.97, 55.03], [34.5, 55.25], [35.03, 55.03], [35.18, 54.68], [35.53, 54.53], [35.68, 54.18], [36.03, 54.03], [36.25, 53.5], [36.03, 52.97], [35.68, 52.82], [35.53, 52.47], [35.0, 52.25], [34.47, 52.47], [34.32, 52.82], [34.25, 52.85], [34.0, 52.75], [33.47, 52.97], [33.32, 53.32], [32.97, 53.47], [32.82, 53.82], [32.47, 53.97], [32.25, 54.5], [32.47, 55.03], [33.0, 55.25]]]]}, "2019-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.5, 53.75], [32.0, 53.54], [32.32, 53.68], [32.35, 53.75], [32.25, 54.0], [32.35, 54.25], [32.25, 54.5], [32.47, 55.03], [33.0, 55.25], [33.53, 55.03], [33.68, 54.68], [33.8, 54.63], [33.97, 55.03], [34.5, 55.25], [34.75, 55.15], [34.82, 55.18], [34.85, 55.25], [34.75, 55.5], [34.96, 56.0], [34.75, 56.5], [34.97, 57.03], [35.5, 57.25], [36.03, 57.03], [36.18, 56.68], [36.25, 56.65], [36.5, 56.75], [36.75, 56.65], [37.0, 56.75], [37.25, 56.65], [37.5, 56.75], [37.75, 56.65], [38.0, 56.75], [38.53, 56.53], [38.75, 56.0], [38.65, 55.75], [38.75, 55.5], [38.65, 55.25], [38.75, 55.0], [38.65, 54.75], [38.75, 54.5], [38.63, 54.2], [38.75, 54.15], [39.0, 54.25], [39.25, 54.15], [39.5, 54.25], [40.03, 54.03], [40.25, 53.5], [40.15, 53.25], [40.18, 53.18], [40.25, 53.15], [40.5, 53.25], [40.75, 53.15], [41.0, 53.25], [41.53, 53.03], [41.68, 52.68], [42.03, 52.53], [42.25, 52.0], [42.03, 51.47], [41.68, 51.32], [41.53, 50.97], [41.18, 50.82], [41.04, 50.5], [41.25, 50.0], [41.03, 49.47], [40.68, 49.32], [40.53, 48.97], [40.13, 48.8], [40.25, 48.5], [40.03, 47.97], [39.68, 47.82], [39.53, 47.47], [39.0, 47.25], [38.75, 47.35], [38.68, 47.32], [38.53, 46.97], [38.0, 46.75], [37.75, 46.85], [37.68, 46.82], [37.53, 46.47], [37.0, 46.25], [36.75, 46.35], [36.5, 46.25], [35.97, 46.47], [35.82, 46.82], [35.47, 46.97], [35.32, 47.32], [34.97, 47.47], [34.75, 48.0], [34.85, 48.25], [34.82, 48.32], [34.47, 48.47], [34.32, 48.82], [33.97, 48.97], [33.75, 49.5], [33.97, 50.03], [34.32, 50.18], [34.47, 50.53], [35.0, 50.75], [34.47, 50.97], [34.32, 51.32], [33.97, 51.47], [33.75, 52.0], [33.97, 52.53], [34.32, 52.68], [34.35, 52.75], [34.32, 52.82], [34.25, 52.85], [34.0, 52.75], [33.5, 52.96], [33.18, 52.82], [33.15, 52.75], [33.25, 52.5], [33.03, 51.97], [32.5, 51.75], [32.25, 51.85], [32.0, 51.75], [31.75, 51.85], [31.5, 51.75], [31.25, 51.85], [31.0, 51.75], [30.47, 51.97], [30.25, 52.5], [30.47, 53.03], [30.82, 53.18], [30.97, 53.53], [31.5, 53.75]], [[35.25, 50.65], [35.5, 50.75], [35.25, 50.85], [35.0, 50.75], [35.25, 50.65]], [[35.75, 50.65], [35.88, 50.7], [35.82, 50.82], [35.75, 50.85], [35.5, 50.75], [35.75, 50.65]]]]}, "2019-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, 54.0], [25.47, 54.53], [26.0, 54.75], [26.25, 54.65], [26.5, 54.75], [26.75, 54.65], [27.0, 54.75], [27.25, 54.65], [27.5, 54.75], [27.75, 54.65], [28.0, 54.75], [28.25, 54.65], [28.5, 54.75], [28.75, 54.65], [29.0, 54.75], [29.53, 54.53], [29.75, 54.0], [29.65, 53.75], [29.68, 53.68], [30.03, 53.53], [30.18, 53.18], [30.25, 53.15], [30.32, 53.18], [30.47, 53.53], [31.0, 53.75], [31.25, 53.65], [31.5, 53.75], [32.0, 53.54], [32.32, 53.68], [32.35, 53.75], [32.25, 54.0], [32.35, 54.25], [32.25, 54.5], [32.47, 55.03], [33.0, 55.25], [33.53, 55.03], [33.68, 54.68], [33.8, 54.63], [33.97, 55.03], [34.5, 55.25], [34.75, 55.15], [34.82, 55.18], [34.85, 55.25], [34.75, 55.5], [34.96, 56.0], [34.75, 56.5], [34.97, 57.03], [35.5, 57.25], [36.03, 57.03], [36.18, 56.68], [36.25, 56.65], [36.5, 56.75], [36.75, 56.65], [37.0, 56.75], [37.25, 56.65], [37.5, 56.75], [37.75, 56.65], [38.0, 56.75], [38.53, 56.53], [38.75, 56.0], [38.65, 55.75], [38.75, 55.5], [38.65, 55.25], [38.75, 55.0], [38.65, 54.75], [38.75, 54.5], [38.63, 54.2], [38.75, 54.15], [39.0, 54.25], [39.25, 54.15], [39.5, 54.25], [40.03, 54.03], [40.25, 53.5], [40.15, 53.25], [40.18, 53.18], [40.25, 53.15], [40.5, 53.25], [40.75, 53.15], [41.0, 53.25], [41.53, 53.03], [41.68, 52.68], [42.03, 52.53], [42.25, 52.0], [42.03, 51.47], [41.68, 51.32], [41.53, 50.97], [41.18, 50.82], [41.04, 50.5], [41.25, 50.0], [41.03, 49.47], [40.68, 49.32], [40.53, 48.97], [40.13, 48.8], [40.25, 48.5], [40.03, 47.97], [39.68, 47.82], [39.53, 47.47], [39.18, 47.32], [39.03, 46.97], [38.5, 46.75], [38.25, 46.85], [38.0, 46.75], [37.75, 46.85], [37.68, 46.82], [37.53, 46.47], [37.0, 46.25], [36.75, 46.35], [36.5, 46.25], [35.97, 46.47], [35.82, 46.82], [35.47, 46.97], [35.32, 47.32], [34.97, 47.47], [34.75, 48.0], [34.85, 48.25], [34.82, 48.32], [34.47, 48.47], [34.32, 48.82], [33.97, 48.97], [33.75, 49.5], [33.97, 50.03], [34.32, 50.18], [34.47, 50.53], [35.0, 50.75], [34.47, 50.97], [34.32, 51.32], [33.97, 51.47], [33.75, 52.0], [33.97, 52.53], [34.32, 52.68], [34.35, 52.75], [34.32, 52.82], [34.25, 52.85], [34.0, 52.75], [33.5, 52.96], [33.18, 52.82], [33.15, 52.75], [33.25, 52.5], [33.03, 51.97], [32.68, 51.82], [32.53, 51.47], [32.0, 51.25], [31.75, 51.35], [31.5, 51.25], [31.25, 51.35], [31.0, 51.25], [30.75, 51.35], [30.5, 51.25], [30.25, 51.35], [30.18, 51.32], [30.03, 50.97], [29.5, 50.75], [28.97, 50.97], [28.82, 51.32], [28.47, 51.47], [28.32, 51.82], [27.97, 51.97], [27.82, 52.32], [27.75, 52.35], [27.5, 52.25], [27.25, 52.35], [27.0, 52.25], [26.47, 52.47], [26.32, 52.82], [25.97, 52.97], [25.82, 53.32], [25.47, 53.47], [25.25, 54.0]], [[35.25, 50.65], [35.5, 50.75], [35.25, 50.85], [35.0, 50.75], [35.25, 50.65]], [[35.75, 50.65], [35.88, 50.7], [35.82, 50.82], [35.75, 50.85], [35.5, 50.75], [35.75, 50.65]]]]}, "2019-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, 54.0], [25.47, 54.53], [26.0, 54.75], [26.25, 54.65], [26.5, 54.75], [26.75, 54.65], [27.0, 54.75], [27.25, 54.65], [27.5, 54.75], [27.75, 54.65], [28.0, 54.75], [28.25, 54.65], [28.5, 54.75], [28.75, 54.65], [29.0, 54.75], [29.53, 54.53], [29.75, 54.0], [29.65, 53.75], [29.68, 53.68], [30.03, 53.53], [30.18, 53.18], [30.25, 53.15], [30.32, 53.18], [30.47, 53.53], [31.0, 53.75], [31.25, 53.65], [31.5, 53.75], [32.0, 53.54], [32.32, 53.68], [32.35, 53.75], [32.25, 54.0], [32.47, 54.53], [33.0, 54.75], [33.25, 54.65], [33.5, 54.75], [33.8, 54.63], [33.97, 55.03], [34.5, 55.25], [34.75, 55.15], [34.82, 55.18], [34.85, 55.25], [34.75, 55.5], [34.96, 56.0], [34.75, 56.5], [34.97, 57.03], [35.5, 57.25], [36.03, 57.03], [36.18, 56.68], [36.25, 56.65], [36.5, 56.75], [36.75, 56.65], [37.0, 56.75], [37.25, 56.65], [37.5, 56.75], [37.75, 56.65], [38.0, 56.75], [38.53, 56.53], [38.75, 56.0], [38.65, 55.75], [38.75, 55.5], [38.65, 55.25], [38.75, 55.0], [38.65, 54.75], [38.75, 54.5], [38.63, 54.2], [38.75, 54.15], [39.0, 54.25], [39.25, 54.15], [39.5, 54.25], [40.03, 54.03], [40.25, 53.5], [40.15, 53.25], [40.18, 53.18], [40.25, 53.15], [40.5, 53.25], [40.75, 53.15], [41.0, 53.25], [41.53, 53.03], [41.68, 52.68], [42.03, 52.53], [42.25, 52.0], [42.03, 51.47], [41.68, 51.32], [41.53, 50.97], [41.18, 50.82], [41.04, 50.5], [41.25, 50.0], [41.03, 49.47], [40.68, 49.32], [40.53, 48.97], [40.13, 48.8], [40.25, 48.5], [40.03, 47.97], [39.68, 47.82], [39.53, 47.47], [39.18, 47.32], [39.03, 46.97], [38.5, 46.75], [38.25, 46.85], [38.0, 46.75], [37.75, 46.85], [37.68, 46.82], [37.53, 46.47], [37.0, 46.25], [36.75, 46.35], [36.5, 46.25], [35.97, 46.47], [35.82, 46.82], [35.47, 46.97], [35.32, 47.32], [34.97, 47.47], [34.75, 48.0], [34.85, 48.25], [34.82, 48.32], [34.47, 48.47], [34.32, 48.82], [33.97, 48.97], [33.75, 49.5], [33.97, 50.03], [34.32, 50.18], [34.47, 50.53], [35.0, 50.75], [34.47, 50.97], [34.32, 51.32], [33.97, 51.47], [33.75, 52.0], [33.97, 52.53], [34.32, 52.68], [34.35, 52.75], [34.32, 52.82], [34.25, 52.85], [34.0, 52.75], [33.5, 52.96], [33.18, 52.82], [33.15, 52.75], [33.25, 52.5], [33.03, 51.97], [32.68, 51.82], [32.53, 51.47], [32.0, 51.25], [31.75, 51.35], [31.5, 51.25], [31.25, 51.35], [31.0, 51.25], [30.75, 51.35], [30.5, 51.25], [30.25, 51.35], [30.18, 51.32], [30.03, 50.97], [29.5, 50.75], [28.97, 50.97], [28.82, 51.32], [28.47, 51.47], [28.32, 51.82], [27.97, 51.97], [27.82, 52.32], [27.75, 52.35], [27.5, 52.25], [27.25, 52.35], [27.0, 52.25], [26.47, 52.47], [26.32, 52.82], [25.97, 52.97], [25.82, 53.32], [25.47, 53.47], [25.25, 54.0]], [[35.25, 50.65], [35.5, 50.75], [35.25, 50.85], [35.0, 50.75], [35.25, 50.65]], [[35.75, 50.65], [36.0, 50.75], [35.75, 50.85], [35.5, 50.75], [35.75, 50.65]], [[36.25, 50.65], [36.5, 50.75], [36.25, 50.85], [36.0, 50.75], [36.25, 50.65]], [[36.75, 50.65], [36.82, 50.68], [36.85, 50.75], [36.82, 50.82], [36.75, 50.85], [36.5, 50.75], [36.75, 50.65]]]]}, "2019-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, 46.97], [37.75, 47.5], [37.97, 48.03], [38.5, 48.25], [39.03, 48.03], [39.25, 47.5], [39.03, 46.97], [38.5, 46.75], [37.97, 46.97]]], [[[25.47, 54.53], [26.0, 54.75], [26.25, 54.65], [26.5, 54.75], [26.75, 54.65], [27.0, 54.75], [27.25, 54.65], [27.5, 54.75], [27.75, 54.65], [28.0, 54.75], [28.25, 54.65], [28.5, 54.75], [28.75, 54.65], [29.0, 54.75], [29.53, 54.53], [29.75, 54.0], [29.65, 53.75], [29.68, 53.68], [30.03, 53.53], [30.18, 53.18], [30.25, 53.15], [30.32, 53.18], [30.47, 53.53], [31.0, 53.75], [31.53, 53.53], [31.68, 53.18], [32.03, 53.03], [32.18, 52.68], [32.53, 52.53], [32.75, 52.0], [32.53, 51.47], [32.0, 51.25], [31.75, 51.35], [31.5, 51.25], [31.25, 51.35], [31.0, 51.25], [30.75, 51.35], [30.5, 51.25], [30.25, 51.35], [30.18, 51.32], [30.03, 50.97], [29.5, 50.75], [28.97, 50.97], [28.82, 51.32], [28.47, 51.47], [28.32, 51.82], [27.97, 51.97], [27.82, 52.32], [27.75, 52.35], [27.5, 52.25], [27.25, 52.35], [27.0, 52.25], [26.47, 52.47], [26.32, 52.82], [25.97, 52.97], [25.82, 53.32], [25.47, 53.47], [25.25, 54.0], [25.47, 54.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.489047160047903}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.055897079207838}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.670016750462594, 17.156015988098886, 17.2575237079447, 17.28129738413918, 17.3923940439185]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.049339855262986, 18.25230326324396, 18.59589173735185, 18.782273361149123, 18.258122903099604]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.220706995399864, 6.526469555003884, 6.120048796223208, 5.672878427781189, 5.525428035889345]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.600503352415615, 8.489047160047903, 7.510085296347654, 7.428272692802921, 6.382973703241703]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4449935161892535, 1.6200257263988747, 1.5507110230287353, 1.4498501111777213, 1.4134719736061756]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.511719932918367, 1.8750812429770918, 1.8765357976489763, 1.8132990348970532, 1.6176283449726667]}}