{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:48.452967", "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": "2025-Apr-17_to_2025-Apr-20_3.0_39.0"}, "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": 2025040002025}, "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 17 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 20 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 103736.24791868258}, "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": ["Spain"]}, "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": ["Balearic Sea", "Mediterranean Sea"]}, "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": 39.0}, "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": 3.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 5.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-0.5, 38.75], [-0.25, 38.65], [-0.18, 38.68], [-0.03, 39.03], [0.5, 39.25], [0.75, 39.15], [1.0, 39.25], [1.25, 39.15], [1.32, 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regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.53, 38.03], [-1.18, 38.18], [-1.03, 38.53], [-0.5, 38.75], [-0.25, 38.65], [-0.18, 38.68], [-0.03, 39.03], [0.5, 39.25], [0.75, 39.15], [1.0, 39.25], [1.25, 39.15], [1.32, 39.18], [1.47, 39.53], [2.0, 39.75], [2.25, 39.65], [2.5, 39.75], [2.75, 39.65], [3.0, 39.75], [3.25, 39.65], [3.32, 39.68], [3.47, 40.03], [4.0, 40.25], [4.53, 40.03], [4.68, 39.68], [4.75, 39.65], [5.0, 39.75], [5.25, 39.65], [5.5, 39.75], [6.03, 39.53], [6.25, 39.0], [6.03, 38.47], [5.68, 38.32], [5.53, 37.97], [5.0, 37.75], [4.75, 37.85], [4.5, 37.75], [4.25, 37.85], [4.0, 37.75], [3.75, 37.85], [3.5, 37.75], [3.2, 37.88], [3.15, 37.75], [3.25, 37.5], [3.03, 36.97], [2.5, 36.75], [2.25, 36.85], [2.0, 36.75], [1.75, 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1.9739745351981781, 1.5336848111489614]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.386485043548248, 1.8173927483408079, 2.406893754067994, 1.781421383482268]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.292529615868735, 1.4163757314971632, 1.867846363570826, 1.3070271680505066]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5235553826730863, 1.7322437985729107, 2.160423338960189, 1.4439888169151462]}}