{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:03.218205", "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": "2018-Sep-02_to_2018-Sep-04_17.5_51.0"}, "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": 2018090001395}, "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 02 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 04 2018"}, "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": 80050.43540981604}, "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": ["Poland"]}, "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": 51.0}, "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": 16.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, 52.0], [15.97, 52.53], [16.5, 52.75], [16.75, 52.65], 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52.53], [16.5, 52.75], [16.75, 52.65], [16.82, 52.68], [16.85, 52.75], [16.75, 53.0], [16.97, 53.53], [17.5, 53.75], [18.03, 53.53], [18.25, 53.0], [18.15, 52.75], [18.18, 52.68], [18.25, 52.65], [18.32, 52.68], [18.47, 53.03], [18.82, 53.18], [18.97, 53.53], [19.5, 53.75], [19.75, 53.65], [20.0, 53.75], [20.25, 53.65], [20.5, 53.75], [20.75, 53.65], [21.0, 53.75], [21.53, 53.53], [21.68, 53.18], [21.75, 53.15], [22.0, 53.25], [22.25, 53.15], [22.5, 53.25], [23.03, 53.03], [23.25, 52.5], [23.03, 51.97], [22.68, 51.82], [22.53, 51.47], [22.0, 51.25], [21.75, 51.35], [21.68, 51.32], [21.53, 50.97], [21.0, 50.75], [20.75, 50.85], [20.5, 50.75], [20.25, 50.85], [20.18, 50.82], [20.03, 50.47], [19.5, 50.25], [19.25, 50.35], [19.18, 50.32], [19.03, 49.97], [18.5, 49.75], [18.25, 49.85], [18.0, 49.75], [17.47, 49.97], [17.32, 50.32], [16.97, 50.47], [16.82, 50.82], [16.47, 50.97], [16.32, 51.32], [15.97, 51.47], [15.75, 52.0]]]]}, "2018-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, 52.0], [15.97, 52.53], [16.5, 52.75], [16.75, 52.65], [16.82, 52.68], [16.85, 52.75], [16.75, 53.0], [16.97, 53.53], [17.5, 53.75], [18.03, 53.53], [18.25, 53.0], [18.15, 52.75], [18.18, 52.68], [18.25, 52.65], [18.32, 52.68], [18.47, 53.03], [18.82, 53.18], [18.97, 53.53], [19.5, 53.75], [19.75, 53.65], [20.0, 53.75], [20.25, 53.65], [20.5, 53.75], [20.75, 53.65], [21.0, 53.75], [21.53, 53.53], [21.68, 53.18], [21.75, 53.15], [22.0, 53.25], [22.25, 53.15], [22.5, 53.25], [23.03, 53.03], [23.25, 52.5], [23.03, 51.97], [22.68, 51.82], [22.53, 51.47], [22.0, 51.25], [21.75, 51.35], [21.68, 51.32], [21.53, 50.97], [21.0, 50.75], [20.75, 50.85], [20.5, 50.75], [20.25, 50.85], [20.18, 50.82], [20.03, 50.47], [19.5, 50.25], [19.25, 50.35], [19.18, 50.32], [19.03, 49.97], [18.5, 49.75], [18.25, 49.85], [18.0, 49.75], [17.47, 49.97], [17.32, 50.32], [16.97, 50.47], [16.82, 50.82], [16.47, 50.97], [16.32, 51.32], [15.97, 51.47], [15.75, 52.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.248099572503975}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.156694247358415}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.610591486784415, 20.31245567311163, 19.437627824612093]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.196921844724613, 21.65319369325624, 20.430174427502948]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.354336783940829, 4.352220772943919, 3.763525185190497]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.815509618062151, 5.248099572503975, 4.195691789927196]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4182676324584462, 1.503133417603038, 1.34248601578328]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5562545029911428, 1.8058132233506483, 1.488697650952036]}}