{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:29.718790", "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": "2024-Oct-09_to_2024-Oct-11_30.5_48.5"}, "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": 2024100001374}, "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 09 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 11 2024"}, "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": 82178.24913243903}, "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": ["Ukraine"]}, "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": 48.5}, "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": 30.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[26.47, 51.03], [27.0, 51.25], [27.25, 51.15], [27.5, 51.25], [27.75, 51.15], [28.0, 51.25], [28.25, 51.15], [28.32, 51.18], [28.47, 51.53], [29.0, 51.75], [29.53, 51.53], [29.68, 51.18], [29.75, 51.15], [30.0, 51.25], [30.53, 51.03], [30.68, 50.68], [31.03, 50.53], [31.25, 50.0], [31.15, 49.75], [31.18, 49.68], [31.53, 49.53], [31.75, 49.0], [31.53, 48.47], [31.18, 48.32], [31.03, 47.97], [30.5, 47.75], [30.25, 47.85], [30.0, 47.75], [29.75, 47.85], [29.5, 47.75], [29.25, 47.85], [29.0, 47.75], [28.75, 47.85], [28.5, 47.75], [28.25, 47.85], [28.0, 47.75], [27.47, 47.97], [27.32, 48.32], [26.97, 48.47], [26.82, 48.82], [26.75, 48.85], [26.5, 48.75], [26.25, 48.85], [26.0, 48.75], [25.47, 48.97], [25.25, 49.5], [25.47, 50.03], [25.82, 50.18], [25.97, 50.53], [26.32, 50.68], [26.47, 51.03]]]]}}, "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": {"2024-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.97, 50.53], [26.32, 50.68], [26.47, 51.03], [27.0, 51.25], [27.25, 51.15], [27.5, 51.25], [27.75, 51.15], [28.0, 51.25], [28.25, 51.15], [28.32, 51.18], [28.47, 51.53], [29.0, 51.75], [29.53, 51.53], [29.68, 51.18], [29.75, 51.15], [30.0, 51.25], [30.53, 51.03], [30.68, 50.68], [31.03, 50.53], [31.25, 50.0], [31.15, 49.75], [31.18, 49.68], [31.53, 49.53], [31.75, 49.0], [31.53, 48.47], [31.18, 48.32], [31.03, 47.97], [30.5, 47.75], [30.25, 47.85], [30.0, 47.75], [29.75, 47.85], [29.5, 47.75], [29.25, 47.85], [29.0, 47.75], [28.75, 47.85], [28.5, 47.75], [28.25, 47.85], [28.0, 47.75], [27.47, 47.97], [27.32, 48.32], [26.97, 48.47], [26.82, 48.82], [26.75, 48.85], [26.5, 48.75], [26.25, 48.85], [26.0, 48.75], [25.47, 48.97], [25.25, 49.5], [25.47, 50.03], [25.82, 50.18], [25.97, 50.53]]]]}, "2024-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.97, 50.53], [26.32, 50.68], [26.47, 51.03], [27.0, 51.25], [27.25, 51.15], [27.5, 51.25], [27.75, 51.15], [28.0, 51.25], [28.25, 51.15], [28.32, 51.18], [28.47, 51.53], [29.0, 51.75], [29.53, 51.53], [29.68, 51.18], [29.75, 51.15], [30.0, 51.25], [30.53, 51.03], [30.68, 50.68], [31.03, 50.53], [31.25, 50.0], [31.15, 49.75], [31.18, 49.68], [31.53, 49.53], [31.75, 49.0], [31.53, 48.47], [31.18, 48.32], [31.03, 47.97], [30.5, 47.75], [30.25, 47.85], [30.0, 47.75], [29.75, 47.85], [29.5, 47.75], [29.25, 47.85], [29.0, 47.75], [28.75, 47.85], [28.5, 47.75], [28.25, 47.85], [28.0, 47.75], [27.47, 47.97], [27.32, 48.32], [26.97, 48.47], [26.82, 48.82], [26.75, 48.85], [26.5, 48.75], [26.25, 48.85], [26.0, 48.75], [25.47, 48.97], [25.25, 49.5], [25.47, 50.03], [25.82, 50.18], [25.97, 50.53]]]]}, "2024-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.97, 50.53], [26.32, 50.68], [26.47, 51.03], [27.0, 51.25], [27.25, 51.15], [27.5, 51.25], [27.75, 51.15], [28.0, 51.25], [28.25, 51.15], [28.32, 51.18], [28.47, 51.53], [29.0, 51.75], [29.53, 51.53], [29.68, 51.18], [29.75, 51.15], [30.0, 51.25], [30.53, 51.03], [30.68, 50.68], [31.03, 50.53], [31.25, 50.0], [31.15, 49.75], [31.18, 49.68], [31.53, 49.53], [31.75, 49.0], [31.53, 48.47], [31.18, 48.32], [31.03, 47.97], [30.5, 47.75], [30.25, 47.85], [30.0, 47.75], [29.75, 47.85], [29.5, 47.75], [29.25, 47.85], [29.0, 47.75], [28.75, 47.85], [28.5, 47.75], [28.25, 47.85], [28.0, 47.75], [27.47, 47.97], [27.32, 48.32], [26.97, 48.47], [26.82, 48.82], [26.75, 48.85], [26.5, 48.75], [26.25, 48.85], [26.0, 48.75], [25.47, 48.97], [25.25, 49.5], [25.47, 50.03], [25.82, 50.18], [25.97, 50.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.793503799816165}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.520516744846483}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.39019227066666, 14.772389208785853, 15.729034119892958]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.2476796468099, 16.329619344075525, 17.926216379801474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.681118703833557, 5.312030012566867, 6.56840151813902]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.094957520960293, 6.000082525487642, 7.793503799816165]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3588829259869768, 1.4770373150607525, 1.7860073572777437]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4524665448777325, 1.6963429433258568, 2.1667456181898177]}}