{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:28:02.519424", "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-Oct-26_to_2021-Oct-28_356.5_53.5"}, "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": 2021100002347}, "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": "October 26 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 28 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 169012.0856240595}, "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": ["Ireland", "United Kingdom"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe", "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": ["Bristol Channel", "Celtic Sea", "English Channel", "Inner Seas off the West Coast of Scotland", "Irish Sea and St. George's Channel", "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": 53.5}, "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": 356.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "356.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 358.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 49.5], [-9.03, 50.03], [-8.68, 50.18], [-8.53, 50.53], [-8.18, 50.68], [-8.03, 51.03], [-7.68, 51.18], [-7.53, 51.53], [-7.18, 51.68], [-7.15, 51.75], [-7.18, 51.82], [-7.53, 51.97], [-7.75, 52.5], [-7.65, 52.75], [-7.75, 53.0], [-7.53, 53.53], [-7.0, 53.75], [-6.75, 53.65], [-6.68, 53.68], [-6.65, 53.75], [-6.75, 54.0], [-6.53, 54.53], [-6.18, 54.68], [-6.15, 54.75], [-6.18, 54.82], [-6.25, 54.85], [-6.5, 54.75], [-7.03, 54.97], [-7.25, 55.5], [-7.03, 56.03], [-6.5, 56.25], [-6.25, 56.15], [-6.0, 56.25], [-5.75, 56.15], [-5.5, 56.25], [-5.25, 56.15], [-5.0, 56.25], [-4.75, 56.15], [-4.68, 56.18], [-4.53, 56.53], [-4.0, 56.75], [-3.75, 56.65], [-3.5, 56.75], [-3.25, 56.65], [-3.0, 56.75], [-2.75, 56.65], [-2.68, 56.68], [-2.53, 57.03], [-2.0, 57.25], [-1.75, 57.15], [-1.5, 57.25], [-0.97, 57.03], [-0.75, 56.5], [-0.97, 55.97], [-1.5, 55.75], [-1.75, 55.85], [-1.82, 55.82], [-1.97, 55.47], [-2.37, 55.3], [-2.25, 55.0], [-2.35, 54.75], [-2.25, 54.5], [-2.35, 54.25], [-2.25, 54.0], [-2.47, 53.47], [-2.82, 53.32], [-2.97, 52.97], [-3.5, 52.75], [-3.75, 52.85], [-3.82, 52.82], [-3.85, 52.75], [-3.75, 52.5], [-3.85, 52.25], [-3.82, 52.18], [-3.47, 52.03], [-3.25, 51.5], [-3.47, 50.97], [-4.0, 50.75], [-4.25, 50.85], [-4.32, 50.82], [-4.47, 50.47], [-4.82, 50.32], [-4.85, 50.25], [-4.75, 50.0], [-4.97, 49.47], [-5.32, 49.32], [-5.35, 49.25], [-5.25, 49.0], [-5.47, 48.47], [-6.0, 48.25], [-6.25, 48.35], [-6.32, 48.32], [-6.47, 47.97], [-7.0, 47.75], [-7.25, 47.85], [-7.5, 47.75], [-8.03, 47.97], [-8.18, 48.32], [-8.53, 48.47], [-8.68, 48.82], [-9.03, 48.97], [-9.25, 49.5]]]]}, "2021-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 49.5], [-9.03, 50.03], [-8.68, 50.18], [-8.53, 50.53], [-8.18, 50.68], [-8.03, 51.03], [-7.68, 51.18], [-7.53, 51.53], [-7.18, 51.68], [-7.15, 51.75], [-7.18, 51.82], [-7.53, 51.97], [-7.75, 52.5], [-7.65, 52.75], [-7.75, 53.0], [-7.53, 53.53], [-7.0, 53.75], [-6.75, 53.65], [-6.68, 53.68], [-6.65, 53.75], [-6.75, 54.0], [-6.53, 54.53], [-6.18, 54.68], [-6.15, 54.75], [-6.18, 54.82], [-6.25, 54.85], [-6.5, 54.75], [-7.03, 54.97], [-7.25, 55.5], [-7.03, 56.03], [-6.5, 56.25], [-6.25, 56.15], [-6.0, 56.25], [-5.75, 56.15], [-5.5, 56.25], [-5.25, 56.15], [-5.0, 56.25], [-4.75, 56.15], [-4.68, 56.18], [-4.53, 56.53], [-4.0, 56.75], [-3.75, 56.65], [-3.5, 56.75], [-3.25, 56.65], [-3.0, 56.75], [-2.75, 56.65], [-2.68, 56.68], [-2.53, 57.03], [-2.0, 57.25], [-1.75, 57.15], [-1.5, 57.25], [-0.97, 57.03], [-0.75, 56.5], [-0.97, 55.97], [-1.5, 55.75], [-1.75, 55.85], [-1.82, 55.82], [-1.97, 55.47], [-2.37, 55.3], [-2.25, 55.0], [-2.35, 54.75], [-2.25, 54.5], [-2.35, 54.25], [-2.25, 54.0], [-2.47, 53.47], [-2.82, 53.32], [-2.97, 52.97], [-3.5, 52.75], [-3.75, 52.85], [-3.82, 52.82], [-3.85, 52.75], [-3.75, 52.5], [-3.85, 52.25], [-3.82, 52.18], [-3.47, 52.03], [-3.25, 51.5], [-3.47, 50.97], [-4.0, 50.75], [-4.25, 50.85], [-4.32, 50.82], [-4.47, 50.47], [-4.82, 50.32], [-4.85, 50.25], [-4.75, 50.0], [-4.97, 49.47], [-5.32, 49.32], [-5.35, 49.25], [-5.25, 49.0], [-5.47, 48.47], [-6.0, 48.25], [-6.25, 48.35], [-6.32, 48.32], [-6.47, 47.97], [-7.0, 47.75], [-7.25, 47.85], [-7.5, 47.75], [-8.03, 47.97], [-8.18, 48.32], [-8.53, 48.47], [-8.68, 48.82], [-9.03, 48.97], [-9.25, 49.5]]]]}, "2021-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 49.5], [-9.03, 50.03], [-8.68, 50.18], [-8.53, 50.53], [-8.18, 50.68], [-8.03, 51.03], [-7.68, 51.18], [-7.53, 51.53], [-7.18, 51.68], [-7.15, 51.75], [-7.18, 51.82], [-7.53, 51.97], [-7.75, 52.5], [-7.65, 52.75], [-7.75, 53.0], [-7.53, 53.53], [-7.0, 53.75], [-6.75, 53.65], [-6.68, 53.68], [-6.65, 53.75], [-6.75, 54.0], [-6.53, 54.53], [-6.18, 54.68], [-6.15, 54.75], [-6.18, 54.82], [-6.25, 54.85], [-6.5, 54.75], [-7.03, 54.97], [-7.25, 55.5], [-7.03, 56.03], [-6.5, 56.25], [-6.25, 56.15], [-6.0, 56.25], [-5.75, 56.15], [-5.5, 56.25], [-5.25, 56.15], [-5.0, 56.25], [-4.75, 56.15], [-4.68, 56.18], [-4.53, 56.53], [-4.0, 56.75], [-3.75, 56.65], [-3.5, 56.75], [-3.25, 56.65], [-3.0, 56.75], [-2.75, 56.65], [-2.68, 56.68], [-2.53, 57.03], [-2.0, 57.25], [-1.75, 57.15], [-1.5, 57.25], [-0.97, 57.03], [-0.75, 56.5], [-0.97, 55.97], [-1.5, 55.75], [-1.75, 55.85], [-1.82, 55.82], [-1.97, 55.47], [-2.37, 55.3], [-2.25, 55.0], [-2.35, 54.75], [-2.25, 54.5], [-2.35, 54.25], [-2.25, 54.0], [-2.47, 53.47], [-2.82, 53.32], [-2.97, 52.97], [-3.5, 52.75], [-3.75, 52.85], [-3.82, 52.82], [-3.85, 52.75], [-3.75, 52.5], [-3.85, 52.25], [-3.82, 52.18], [-3.47, 52.03], [-3.25, 51.5], [-3.47, 50.97], [-4.0, 50.75], [-4.25, 50.85], [-4.32, 50.82], [-4.47, 50.47], [-4.82, 50.32], [-4.85, 50.25], [-4.75, 50.0], [-4.97, 49.47], [-5.32, 49.32], [-5.35, 49.25], [-5.25, 49.0], [-5.47, 48.47], [-6.0, 48.25], [-6.25, 48.35], [-6.32, 48.32], [-6.47, 47.97], [-7.0, 47.75], [-7.25, 47.85], [-7.5, 47.75], [-8.03, 47.97], [-8.18, 48.32], [-8.53, 48.47], [-8.68, 48.82], [-9.03, 48.97], [-9.25, 49.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.102387529875784}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.966600338378861}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.260696005451962, 15.017608863875125, 14.211796704627261]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.87861543714314, 16.29539880918702, 15.80350100801661]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6752431205912033, 3.485320382321094, 2.7392375122242862]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.4931579852270715, 6.102387529875784, 4.656738851449802]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4173756552144934, 1.8174091464444913, 1.4455212976484166]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6452744871393374, 2.216661616082183, 1.8282300541372838]}}