{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:12.117941", "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": "2010-Jul-26_to_2010-Jul-31_15.0_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": 2010070001083}, "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": "July 26 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 82625.98407351066}, "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": ["Mediterranean Sea - Eastern Basin"]}, "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": 15.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.47, 38.03], [15.0, 38.25], [15.53, 38.03], [15.75, 37.5], 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36.0], [16.15, 35.75], [16.18, 35.68], [16.53, 35.53], [16.75, 35.0], [16.65, 34.75], [16.75, 34.5], [16.53, 33.97], [16.0, 33.75], [15.75, 33.85], [15.5, 33.75], [15.25, 33.85], [15.0, 33.75], [14.47, 33.97], [14.32, 34.32], [14.25, 34.35], [14.0, 34.25], [13.75, 34.35], [13.5, 34.25], [12.97, 34.47], [12.82, 34.82], [12.47, 34.97], [12.25, 35.5], [12.35, 35.75], [12.32, 35.82], [11.97, 35.97], [11.75, 36.5]]]]}, "2010-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.5, 38.25], [14.03, 38.03], [14.18, 37.68], [14.53, 37.53], [14.68, 37.18], [14.75, 37.15], [15.0, 37.25], [15.53, 37.03], [15.68, 36.68], [16.03, 36.53], [16.25, 36.0], [16.15, 35.75], [16.18, 35.68], [16.53, 35.53], [16.75, 35.0], [16.65, 34.75], [16.75, 34.5], [16.53, 33.97], [16.0, 33.75], [15.75, 33.85], [15.5, 33.75], [15.25, 33.85], [15.0, 33.75], [14.47, 33.97], [14.25, 34.5], [14.46, 35.0], [14.32, 35.32], [14.25, 35.35], [14.0, 35.25], [13.47, 35.47], [13.25, 36.0], [13.35, 36.25], 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