{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:56.562988", "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": "2023-Aug-04_to_2023-Aug-06_30.0_50.5"}, "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": 2023080001307}, "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": "August 04 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 06 2023"}, "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": 72631.16816363586}, "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": ["Moldova, Republic of", "Ukraine"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "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": 50.5}, "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": 30.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[26.82, 50.18], [26.97, 50.53], [27.5, 50.75], [27.75, 50.65], [28.0, 50.75], [28.25, 50.65], [28.32, 50.68], [28.47, 51.03], [29.0, 51.25], [29.25, 51.15], [29.5, 51.25], [29.75, 51.15], [30.0, 51.25], [30.25, 51.15], [30.5, 51.25], [31.03, 51.03], [31.25, 50.5], [31.15, 50.25], [31.25, 50.0], [31.15, 49.75], [31.25, 49.5], [31.03, 48.97], [30.68, 48.82], [30.53, 48.47], [30.18, 48.32], [30.15, 48.25], [30.25, 48.0], [30.03, 47.47], [29.5, 47.25], [29.25, 47.35], [29.0, 47.25], [28.75, 47.35], [28.68, 47.32], [28.53, 46.97], [28.0, 46.75], [27.47, 46.97], [27.25, 47.5], [27.35, 47.75], [27.32, 47.82], [26.97, 47.97], [26.82, 48.32], [26.47, 48.47], [26.25, 49.0], [26.35, 49.25], [26.25, 49.5], [26.47, 50.03], [26.82, 50.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 49.5], [26.47, 50.03], [26.82, 50.18], [26.97, 50.53], [27.5, 50.75], [27.75, 50.65], [28.0, 50.75], [28.25, 50.65], [28.32, 50.68], [28.47, 51.03], [29.0, 51.25], [29.25, 51.15], [29.5, 51.25], [29.75, 51.15], [30.0, 51.25], [30.25, 51.15], [30.5, 51.25], [31.03, 51.03], [31.25, 50.5], [31.15, 50.25], [31.25, 50.0], [31.15, 49.75], [31.25, 49.5], [31.03, 48.97], [30.68, 48.82], [30.53, 48.47], [30.18, 48.32], [30.15, 48.25], [30.25, 48.0], [30.03, 47.47], [29.5, 47.25], [29.25, 47.35], [29.0, 47.25], [28.75, 47.35], [28.68, 47.32], [28.53, 46.97], [28.0, 46.75], [27.47, 46.97], [27.25, 47.5], [27.35, 47.75], [27.32, 47.82], [26.97, 47.97], [26.82, 48.32], [26.47, 48.47], [26.25, 49.0], [26.35, 49.25], [26.25, 49.5]]]]}, "2023-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 49.5], [26.47, 50.03], [26.82, 50.18], [26.97, 50.53], [27.5, 50.75], [27.75, 50.65], [28.0, 50.75], [28.25, 50.65], [28.32, 50.68], [28.47, 51.03], [29.0, 51.25], [29.25, 51.15], [29.5, 51.25], [29.75, 51.15], [30.0, 51.25], [30.25, 51.15], [30.5, 51.25], [31.03, 51.03], [31.25, 50.5], [31.15, 50.25], [31.25, 50.0], [31.15, 49.75], [31.25, 49.5], [31.03, 48.97], [30.68, 48.82], [30.53, 48.47], [30.18, 48.32], [30.15, 48.25], [30.25, 48.0], [30.03, 47.47], [29.5, 47.25], [29.25, 47.35], [29.0, 47.25], [28.75, 47.35], [28.68, 47.32], [28.53, 46.97], [28.0, 46.75], [27.47, 46.97], [27.25, 47.5], [27.35, 47.75], [27.32, 47.82], [26.97, 47.97], [26.82, 48.32], [26.47, 48.47], [26.25, 49.0], [26.35, 49.25], [26.25, 49.5]]]]}, "2023-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 49.5], [26.47, 50.03], [26.82, 50.18], [26.97, 50.53], [27.5, 50.75], [27.75, 50.65], [28.0, 50.75], [28.25, 50.65], [28.32, 50.68], [28.47, 51.03], [29.0, 51.25], [29.25, 51.15], [29.5, 51.25], [29.75, 51.15], [30.0, 51.25], [30.25, 51.15], [30.5, 51.25], [31.03, 51.03], [31.25, 50.5], [31.15, 50.25], [31.25, 50.0], [31.15, 49.75], [31.25, 49.5], [31.03, 48.97], [30.68, 48.82], [30.53, 48.47], [30.18, 48.32], [30.15, 48.25], [30.25, 48.0], [30.03, 47.47], [29.5, 47.25], [29.25, 47.35], [29.0, 47.25], [28.75, 47.35], [28.68, 47.32], [28.53, 46.97], [28.0, 46.75], [27.47, 46.97], [27.25, 47.5], [27.35, 47.75], [27.32, 47.82], [26.97, 47.97], [26.82, 48.32], [26.47, 48.47], [26.25, 49.0], [26.35, 49.25], [26.25, 49.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.733632411939595}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.208014569713292}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.81442698514752, 26.538358124496767, 27.287609999046595]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.209043784023606, 27.344234879663645, 28.847790476444686]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.456335826523201, 5.183092231802125, 5.984615650814549]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.402219049140285, 6.132346444393534, 7.733632411939595]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6252127517462283, 1.8448013733530948, 2.1068304156687883]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.07662110174222, 2.1234578163702453, 2.5507018036008415]}}