{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:17.860804", "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-Jun-23_to_2024-Jun-27_0.5_52.0"}, "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": 2024060002184}, "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 23 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 27 2024"}, "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": 57831.1142120194}, "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": ["United Kingdom"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": ["North 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": 52.0}, "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": 360.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 357.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.0, 55.25], [-0.47, 55.03], [-0.25, 54.5], [-0.47, 53.97], [-1.0, 53.75], [-1.53, 53.97], [-1.75, 54.5], [-1.53, 55.03], [-1.0, 55.25]]]]}, "2024-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.25, 54.5], [-3.03, 55.03], [-2.68, 55.18], [-2.53, 55.53], [-2.0, 55.75], [-1.47, 55.53], [-1.32, 55.18], [-1.25, 55.15], [-1.0, 55.25], [-0.47, 55.03], [-0.25, 54.5], [-0.46, 54.0], [-0.32, 53.68], [0.03, 53.53], [0.18, 53.18], [0.25, 53.15], [0.5, 53.25], [0.75, 53.15], [1.0, 53.25], [1.53, 53.03], [1.75, 52.5], [1.53, 51.97], [1.18, 51.82], [1.15, 51.75], [1.25, 51.5], [1.03, 50.97], [0.5, 50.75], [0.25, 50.85], [0.0, 50.75], [-0.25, 50.85], [-0.5, 50.75], [-0.75, 50.85], [-1.0, 50.75], [-1.53, 50.97], [-1.68, 51.32], [-2.03, 51.47], [-2.18, 51.82], [-2.53, 51.97], [-2.75, 52.5], [-2.65, 52.75], [-2.75, 53.0], [-2.65, 53.25], [-2.75, 53.5], [-2.65, 53.75], [-2.68, 53.82], [-3.03, 53.97], [-3.25, 54.5]]]]}, "2024-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.25, 54.5], [-3.03, 55.03], [-2.68, 55.18], [-2.53, 55.53], [-2.0, 55.75], [-1.47, 55.53], [-1.32, 55.18], [-1.25, 55.15], [-1.0, 55.25], [-0.47, 55.03], [-0.25, 54.5], [-0.46, 54.0], [-0.32, 53.68], [0.03, 53.53], [0.18, 53.18], [0.25, 53.15], [0.5, 53.25], [0.75, 53.15], [1.0, 53.25], [1.53, 53.03], [1.75, 52.5], [1.65, 52.25], [1.75, 52.0], [1.53, 51.47], [1.18, 51.32], [1.03, 50.97], [0.5, 50.75], [0.25, 50.85], [0.0, 50.75], [-0.25, 50.85], [-0.5, 50.75], [-0.75, 50.85], [-1.0, 50.75], [-1.53, 50.97], [-1.68, 51.32], [-2.03, 51.47], [-2.18, 51.82], [-2.53, 51.97], [-2.75, 52.5], [-2.65, 52.75], [-2.75, 53.0], [-2.65, 53.25], [-2.75, 53.5], [-2.65, 53.75], [-2.68, 53.82], [-3.03, 53.97], [-3.25, 54.5]]]]}, "2024-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.25, 54.5], [-3.03, 55.03], [-2.68, 55.18], [-2.53, 55.53], [-2.0, 55.75], [-1.47, 55.53], [-1.32, 55.18], [-0.97, 55.03], [-0.75, 54.5], [-0.85, 54.25], [-0.82, 54.18], [-0.47, 54.03], [-0.32, 53.68], [0.03, 53.53], [0.18, 53.18], [0.25, 53.15], [0.5, 53.25], [0.75, 53.15], [1.0, 53.25], [1.53, 53.03], [1.75, 52.5], [1.65, 52.25], [1.75, 52.0], [1.53, 51.47], [1.18, 51.32], [1.03, 50.97], [0.5, 50.75], [0.25, 50.85], [0.0, 50.75], [-0.25, 50.85], [-0.5, 50.75], [-0.75, 50.85], [-1.0, 50.75], [-1.53, 50.97], [-1.68, 51.32], [-2.03, 51.47], [-2.18, 51.82], [-2.53, 51.97], [-2.75, 52.5], [-2.65, 52.75], [-2.75, 53.0], [-2.65, 53.25], [-2.75, 53.5], [-2.65, 53.75], [-2.68, 53.82], [-3.03, 53.97], [-3.25, 54.5]]]]}, "2024-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.03, 53.03], [0.5, 53.25], [0.75, 53.15], [1.0, 53.25], [1.53, 53.03], [1.75, 52.5], [1.65, 52.25], [1.75, 52.0], [1.53, 51.47], [1.0, 51.25], [0.75, 51.35], [0.5, 51.25], [-0.03, 51.47], [-0.25, 52.0], [-0.15, 52.25], [-0.25, 52.5], [-0.03, 53.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.59530434491802}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.460310295283338}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.24466908157308, 19.529957161108598, 20.18950881662147, 20.05027023567169, 19.971900586281663]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.24466908157308, 21.67265286709528, 21.782128630798752, 21.95584425287717, 20.146976534058865]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5328782504761307, 4.19879961780931, 4.792467778403752, 4.535560475888313, 3.764901538819828]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5328782504761307, 5.267960674941037, 5.546666693398436, 5.59530434491802, 4.090774556928125]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3221857370476853, 1.7046440825566096, 1.9606857546850307, 1.8932803730191106, 1.67464822763658]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3221857370476853, 2.061722942419484, 2.1902494540510165, 2.339446995627498, 1.895705677487184]}}