{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:45.340346", "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": "2011-Jun-04_to_2011-Jun-08_20.5_37.5"}, "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": 2011060001923}, "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": "June 04 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 08 2011"}, "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": 65468.39793651865}, "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": ["Greece"]}, "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": ["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": 37.5}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.5, 38.25], [21.03, 38.03], [21.25, 37.5], [21.03, 36.97], [20.5, 36.75], [19.97, 36.97], [19.75, 37.5], [19.97, 38.03], [20.5, 38.25]]]]}, "2011-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 38.53], [20.0, 38.75], [20.53, 38.53], [20.68, 38.18], [21.03, 38.03], [21.18, 37.68], [21.53, 37.53], [21.75, 37.0], [21.53, 36.47], [21.0, 36.25], [20.75, 36.35], [20.5, 36.25], [19.97, 36.47], [19.82, 36.82], [19.47, 36.97], [19.25, 37.5], [19.35, 37.75], [19.25, 38.0], [19.47, 38.53]]]]}, "2011-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 40.75], [18.25, 41.0], [18.47, 41.53], [19.0, 41.75], [19.53, 41.53], [19.75, 41.0], [19.65, 40.75], [19.68, 40.68], [20.03, 40.53], [20.18, 40.18], [20.53, 40.03], [20.68, 39.68], [20.75, 39.65], [21.0, 39.75], [21.25, 39.65], [21.5, 39.75], [22.03, 39.53], [22.25, 39.0], [22.15, 38.75], [22.18, 38.68], [22.53, 38.53], [22.75, 38.0], [22.65, 37.75], [22.75, 37.5], [22.54, 37.0], [22.75, 36.5], [22.53, 35.97], [22.0, 35.75], [21.75, 35.85], [21.5, 35.75], [21.25, 35.85], [21.0, 35.75], [20.47, 35.97], [20.32, 36.32], [19.97, 36.47], [19.82, 36.82], [19.47, 36.97], [19.25, 37.5], [19.35, 37.75], [19.25, 38.0], [19.46, 38.5], [19.32, 38.82], [18.97, 38.97], [18.82, 39.32], [18.47, 39.47], [18.25, 40.0], [18.35, 40.25], [18.25, 40.5], [18.35, 40.75]]]]}, "2011-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 40.75], [18.25, 41.0], [18.47, 41.53], [19.0, 41.75], [19.53, 41.53], [19.75, 41.0], [19.65, 40.75], [19.68, 40.68], [20.03, 40.53], [20.18, 40.18], [20.53, 40.03], [20.68, 39.68], [20.75, 39.65], [21.0, 39.75], [21.25, 39.65], [21.5, 39.75], [22.03, 39.53], [22.25, 39.0], [22.15, 38.75], [22.18, 38.68], [22.53, 38.53], [22.75, 38.0], [22.65, 37.75], [22.75, 37.5], [22.54, 37.0], [22.75, 36.5], [22.53, 35.97], [22.0, 35.75], [21.75, 35.85], [21.5, 35.75], [21.25, 35.85], [21.0, 35.75], [20.47, 35.97], [20.32, 36.32], [19.97, 36.47], [19.82, 36.82], [19.47, 36.97], [19.25, 37.5], [19.35, 37.75], [19.25, 38.0], [19.46, 38.5], [19.32, 38.82], [18.97, 38.97], [18.82, 39.32], [18.47, 39.47], [18.25, 40.0], [18.35, 40.25], [18.25, 40.5], [18.35, 40.75]]]]}, "2011-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 40.75], [18.25, 41.0], [18.47, 41.53], [19.0, 41.75], [19.53, 41.53], [19.75, 41.0], [19.65, 40.75], [19.68, 40.68], [20.03, 40.53], [20.18, 40.18], [20.53, 40.03], [20.68, 39.68], [20.75, 39.65], [21.0, 39.75], [21.25, 39.65], [21.5, 39.75], [22.03, 39.53], [22.25, 39.0], [22.15, 38.75], [22.18, 38.68], [22.53, 38.53], [22.75, 38.0], [22.65, 37.75], [22.75, 37.5], [22.54, 37.0], [22.75, 36.5], [22.53, 35.97], [22.0, 35.75], [21.75, 35.85], [21.5, 35.75], [21.25, 35.85], [21.0, 35.75], [20.47, 35.97], [20.32, 36.32], [19.97, 36.47], [19.82, 36.82], [19.47, 36.97], [19.25, 37.5], [19.35, 37.75], [19.25, 38.0], [19.46, 38.5], [19.32, 38.82], [18.97, 38.97], [18.82, 39.32], [18.47, 39.47], [18.25, 40.0], [18.35, 40.25], [18.25, 40.5], [18.35, 40.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.698577872291196}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5154923793461297}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.69394833699596, 22.97727068573431, 23.1877818762959, 23.66880162850117, 23.822196006471245]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.69394833699596, 23.151258692856118, 25.194046277168752, 25.646024038773305, 26.792370209964474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7581553425491165, 1.8205646769371469, 2.3588994110290495, 2.6818682604522928, 2.6624493016993402]}, "anom_evo_maxamp": {"name": "Evolution of 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