{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:02.159826", "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-Feb-23_to_2020-Feb-25_17.5_48.0"}, "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": 2020020002247}, "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": "February 23 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 25 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": 57991.50384294808}, "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": ["Austria", "Hungary", "Slovakia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 48.0}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "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": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, 49.25], [17.75, 49.15], [18.0, 49.25], [18.5, 49.04], [19.0, 49.25], [19.25, 49.15], [19.5, 49.25], [19.75, 49.15], [20.0, 49.25], [20.25, 49.15], [20.5, 49.25], [20.75, 49.15], [21.0, 49.25], [21.25, 49.15], [21.5, 49.25], [22.03, 49.03], [22.18, 48.68], [22.53, 48.53], [22.75, 48.0], [22.53, 47.47], [22.18, 47.32], [22.03, 46.97], [21.5, 46.75], [21.25, 46.85], [21.18, 46.82], [21.03, 46.47], [20.5, 46.25], [20.25, 46.35], [20.0, 46.25], [19.75, 46.35], [19.5, 46.25], [18.97, 46.47], [18.8, 46.88], [18.5, 46.75], [17.97, 46.97], [17.82, 47.32], [17.75, 47.35], [17.5, 47.25], [17.25, 47.35], [17.0, 47.25], [16.47, 47.47], [16.25, 48.0], [16.47, 48.53], [16.82, 48.68], [16.97, 49.03], [17.5, 49.25]]]]}, "2020-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, 49.25], [17.75, 49.15], [18.0, 49.25], [18.5, 49.04], [19.0, 49.25], [19.25, 49.15], [19.5, 49.25], [19.75, 49.15], [20.0, 49.25], [20.25, 49.15], [20.5, 49.25], [20.75, 49.15], [21.0, 49.25], [21.25, 49.15], [21.5, 49.25], [22.03, 49.03], [22.18, 48.68], [22.53, 48.53], [22.75, 48.0], [22.53, 47.47], [22.18, 47.32], [22.03, 46.97], [21.5, 46.75], [21.25, 46.85], [21.18, 46.82], [21.03, 46.47], [20.5, 46.25], [20.25, 46.35], [20.0, 46.25], [19.75, 46.35], [19.5, 46.25], [18.97, 46.47], [18.8, 46.88], [18.5, 46.75], [17.97, 46.97], [17.82, 47.32], [17.75, 47.35], [17.5, 47.25], [17.25, 47.35], [17.0, 47.25], [16.47, 47.47], [16.25, 48.0], [16.47, 48.53], [16.82, 48.68], [16.97, 49.03], [17.5, 49.25]]]]}, "2020-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, 49.25], [17.75, 49.15], [18.0, 49.25], [18.5, 49.04], [19.0, 49.25], [19.25, 49.15], [19.5, 49.25], [19.75, 49.15], [20.0, 49.25], [20.25, 49.15], [20.5, 49.25], [20.75, 49.15], [21.0, 49.25], [21.25, 49.15], [21.5, 49.25], [22.03, 49.03], [22.18, 48.68], [22.53, 48.53], [22.75, 48.0], [22.53, 47.47], [22.18, 47.32], [22.03, 46.97], [21.5, 46.75], [21.25, 46.85], [21.18, 46.82], [21.03, 46.47], [20.5, 46.25], [20.25, 46.35], [20.0, 46.25], [19.75, 46.35], [19.5, 46.25], [18.97, 46.47], [18.8, 46.88], [18.5, 46.75], [17.97, 46.97], [17.82, 47.32], [17.75, 47.35], [17.5, 47.25], [17.25, 47.35], [17.0, 47.25], [16.47, 47.47], [16.25, 48.0], [16.47, 48.53], [16.82, 48.68], [16.97, 49.03], [17.5, 49.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.33419713237845}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.072190908374186}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.612601717007294, 8.005480877420098, 8.548601680365152]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.442836997791062, 9.419592081094152, 10.155385988049261]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.523900680529658, 5.7005309697044595, 5.992141074888439]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.33419713237845, 6.486134918611299, 6.41502335279273]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6504040318995952, 1.4566038131359842, 1.5197018589307099]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3546373140421886, 1.6015499662052444, 1.636913278690022]}}