{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:28.554262", "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": "2021-Apr-28_to_2021-May-02_14.5_37.0"}, "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": 2021040002814}, "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 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 56053.339871130294}, "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": ["Italy"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": ["Ionian Sea", "Mediterranean Sea - Eastern Basin", "Mediterranean Sea - Western Basin", "Tyrrhenian 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": 37.0}, "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": 14.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 11.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.5, 37.75], [15.03, 37.53], [15.25, 37.0], [15.03, 36.47], [14.5, 36.25], [13.97, 36.47], [13.75, 37.0], [13.97, 37.53], [14.5, 37.75]]]]}, "2021-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 37.47], [10.75, 38.0], [10.97, 38.53], [11.5, 38.75], [11.75, 38.65], [12.0, 38.75], [12.25, 38.65], [12.5, 38.75], [12.75, 38.65], [13.0, 38.75], [13.25, 38.65], [13.5, 38.75], [13.75, 38.65], [14.0, 38.75], [14.25, 38.65], [14.5, 38.75], [14.75, 38.65], [14.82, 38.68], [14.97, 39.03], [15.32, 39.18], [15.35, 39.25], [15.25, 39.5], [15.47, 40.03], [16.0, 40.25], [16.53, 40.03], [16.68, 39.68], [17.03, 39.53], [17.25, 39.0], [17.03, 38.47], [16.68, 38.32], [16.65, 38.25], [16.75, 38.0], [16.53, 37.47], [16.0, 37.25], [15.75, 37.35], [15.5, 37.25], [15.25, 37.35], [15.13, 37.3], [15.25, 37.0], [15.03, 36.47], [14.5, 36.25], [14.25, 36.35], [14.0, 36.25], [13.75, 36.35], [13.5, 36.25], [12.97, 36.47], [12.82, 36.82], [12.75, 36.85], [12.5, 36.75], [11.97, 36.97], [11.82, 37.32], [11.75, 37.35], [11.5, 37.25], [10.97, 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"MultiPolygon", "coordinates": [[[[10.97, 37.47], [10.75, 38.0], [10.97, 38.53], [11.5, 38.75], [11.75, 38.65], [12.0, 38.75], [12.25, 38.65], [12.5, 38.75], [12.75, 38.65], [13.0, 38.75], [13.25, 38.65], [13.5, 38.75], [13.75, 38.65], [14.0, 38.75], [14.25, 38.65], [14.5, 38.75], [14.75, 38.65], [14.82, 38.68], [14.97, 39.03], [15.32, 39.18], [15.35, 39.25], [15.25, 39.5], [15.47, 40.03], [16.0, 40.25], [16.53, 40.03], [16.68, 39.68], [17.03, 39.53], [17.25, 39.0], [17.03, 38.47], [16.68, 38.32], [16.65, 38.25], [16.75, 38.0], [16.53, 37.47], [16.0, 37.25], [15.75, 37.35], [15.5, 37.25], [15.25, 37.35], [15.18, 37.32], [15.15, 37.25], [15.25, 37.0], [15.03, 36.47], [14.5, 36.25], [14.25, 36.35], [14.0, 36.25], [13.75, 36.35], [13.5, 36.25], [12.97, 36.47], [12.82, 36.82], [12.75, 36.85], [12.5, 36.75], [11.97, 36.97], [11.82, 37.32], [11.75, 37.35], [11.5, 37.25], [10.97, 37.47]]]]}, "2021-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, 38.03], [13.5, 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