{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:12.149487", "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_10.5_44.0"}, "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": 2010070001086}, "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": 76589.718236174}, "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", "West&Central-Europe"]}, "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": ["Adriatic 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": 44.0}, "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": 10.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "10.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 8.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 13.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "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": [[[[9.97, 43.47], [9.75, 44.0], [9.97, 44.53], [10.5, 44.75], [10.75, 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"MultiPolygon", "coordinates": [[[[7.75, 45.0], [7.97, 45.53], [8.32, 45.68], [8.47, 46.03], [9.0, 46.25], [9.25, 46.15], [9.32, 46.18], [9.47, 46.53], [10.0, 46.75], [10.25, 46.65], [10.5, 46.75], [11.03, 46.53], [11.18, 46.18], [11.25, 46.15], [11.32, 46.18], [11.47, 46.53], [12.0, 46.75], [12.5, 46.54], [13.0, 46.75], [13.53, 46.53], [13.75, 46.0], [13.65, 45.75], [13.75, 45.5], [13.53, 44.97], [13.18, 44.82], [13.03, 44.47], [12.68, 44.32], [12.54, 44.0], [12.75, 43.5], [12.53, 42.97], [12.0, 42.75], [11.75, 42.85], [11.5, 42.75], [11.25, 42.85], [11.0, 42.75], [10.47, 42.97], [10.32, 43.32], [9.97, 43.47], [9.82, 43.82], [9.75, 43.85], [9.5, 43.75], [9.25, 43.85], [9.0, 43.75], [8.47, 43.97], [8.32, 44.32], [7.97, 44.47], [7.75, 45.0]]]]}, "2010-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.0, 46.25], [9.25, 46.15], [9.32, 46.18], [9.47, 46.53], [10.0, 46.75], [10.25, 46.65], [10.5, 46.75], [11.03, 46.53], [11.18, 46.18], [11.25, 46.15], [11.32, 46.18], 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16.740890919261574, 18.32505610126651, 10.724420331856834, 9.949924580769618, 11.678833250997798]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.196267420250848, -4.1235518776353315, -2.8739853616043547, -4.10080685920873, -4.968140858762304, -3.2771788645195707]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.322674969175978, -4.936745095956667, -3.0812833342096155, -5.361526531697393, -6.096474021459187, -4.486848733590648]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5503856561964353, -2.1195344362082094, -1.5194942216749654, -1.9323837102153314, -2.378896384046155, -1.5666057265330744]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6835985197635004, -2.4166446891369096, -1.6303929320933988, -2.326542589386173, -2.643713897071491, -2.0349602013053882]}}