{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:36.886810", "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-Apr-28_to_2024-May-01_18.5_39.5"}, "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": 2024040002041}, "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 28 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 2024"}, "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": 116175.18598213016}, "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": ["Albania", "Greece"]}, "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": ["Adriatic Sea", "Ionian 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": 39.5}, "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": 18.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[16.47, 40.53], [17.0, 40.75], [17.25, 40.65], [17.37, 40.7], [17.32, 40.82], [16.97, 40.97], [16.82, 41.32], [16.47, 41.47], 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"IPCC 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": {"2024-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.0, 39.25], [16.47, 39.47], [16.25, 40.0], [16.47, 40.53], [17.0, 40.75], [17.25, 40.65], [17.5, 40.75], [17.75, 40.65], [17.88, 40.7], [17.82, 40.82], [17.47, 40.97], [17.25, 41.5], [17.47, 42.03], [17.82, 42.18], [17.97, 42.53], [18.5, 42.75], [19.03, 42.53], [19.18, 42.18], [19.25, 42.15], [19.5, 42.25], [20.03, 42.03], [20.25, 41.5], [20.03, 40.97], [19.63, 40.8], [19.68, 40.68], [20.03, 40.53], [20.18, 40.18], [20.53, 40.03], [20.68, 39.68], [21.03, 39.53], [21.18, 39.18], [21.53, 39.03], [21.75, 38.5], [21.53, 37.97], [21.18, 37.82], [21.03, 37.47], [20.5, 37.25], [20.25, 37.35], [20.18, 37.32], [20.03, 36.97], [19.5, 36.75], [19.25, 36.85], [19.0, 36.75], [18.47, 36.97], 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18.76382235037613]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.27984692737101, 19.755063179941317, 20.07045050150066, 20.17576139348006]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7103111414415995, 2.294243713360044, 2.1405492107576567, 2.0347897417656267]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.785014662692049, 3.056182773692342, 2.966789382827244, 2.6209653105808]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4822795095739885, 1.93502242686675, 1.7434468669025314, 1.59922118909664]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8297754113249936, 2.5400103985482367, 2.123235469876874, 1.8638704448029102]}}