{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:33.734638", "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": "2017-Nov-20_to_2017-Nov-22_357.0_52.5"}, "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": 2017110002310}, "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": "November 20 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 22 2017"}, "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": 77334.97310067626}, "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": ["Bristol Channel", "Celtic Sea", "Irish Sea and St. George's Channel"]}, "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": 52.5}, "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": 357.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "357.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 51.5], [-8.03, 52.03], [-7.68, 52.18], [-7.53, 52.53], [-7.0, 52.75], [-6.75, 52.65], [-6.68, 52.68], [-6.53, 53.03], [-6.18, 53.18], [-6.03, 53.53], [-5.5, 53.75], [-5.25, 53.65], [-5.18, 53.68], [-5.03, 54.03], [-4.68, 54.18], [-4.53, 54.53], [-4.18, 54.68], [-4.03, 55.03], [-3.5, 55.25], [-2.97, 55.03], [-2.75, 54.5], [-2.85, 54.25], [-2.82, 54.18], [-2.47, 54.03], [-2.25, 53.5], [-2.35, 53.25], [-2.32, 53.18], [-1.97, 53.03], [-1.75, 52.5], [-1.97, 51.97], [-2.32, 51.82], [-2.47, 51.47], [-2.82, 51.32], [-2.97, 50.97], [-3.5, 50.75], [-3.75, 50.85], [-4.0, 50.75], [-4.25, 50.85], [-4.5, 50.75], [-4.75, 50.85], [-5.0, 50.75], [-5.25, 50.85], [-5.5, 50.75], [-5.75, 50.85], [-5.82, 50.82], [-5.97, 50.47], [-6.5, 50.25], [-6.75, 50.35], [-7.0, 50.25], [-7.53, 50.47], [-7.68, 50.82], [-8.03, 50.97], [-8.25, 51.5]]]]}, "2017-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 51.5], [-8.03, 52.03], [-7.68, 52.18], [-7.53, 52.53], [-7.0, 52.75], [-6.75, 52.65], [-6.68, 52.68], [-6.53, 53.03], [-6.18, 53.18], [-6.03, 53.53], [-5.5, 53.75], [-5.25, 53.65], [-5.18, 53.68], [-5.03, 54.03], [-4.68, 54.18], [-4.53, 54.53], [-4.18, 54.68], [-4.03, 55.03], [-3.5, 55.25], [-2.97, 55.03], [-2.75, 54.5], [-2.85, 54.25], [-2.82, 54.18], [-2.47, 54.03], [-2.25, 53.5], [-2.35, 53.25], [-2.32, 53.18], [-1.97, 53.03], [-1.75, 52.5], [-1.97, 51.97], [-2.32, 51.82], [-2.47, 51.47], [-2.82, 51.32], [-2.97, 50.97], [-3.5, 50.75], [-3.75, 50.85], [-4.0, 50.75], [-4.25, 50.85], [-4.5, 50.75], [-4.75, 50.85], [-5.0, 50.75], [-5.25, 50.85], [-5.5, 50.75], [-5.75, 50.85], [-5.82, 50.82], [-5.97, 50.47], [-6.5, 50.25], [-6.75, 50.35], [-7.0, 50.25], [-7.53, 50.47], [-7.68, 50.82], [-8.03, 50.97], [-8.25, 51.5]]]]}, "2017-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 51.5], [-8.03, 52.03], [-7.68, 52.18], [-7.53, 52.53], [-7.0, 52.75], [-6.75, 52.65], [-6.68, 52.68], [-6.53, 53.03], [-6.18, 53.18], [-6.03, 53.53], [-5.5, 53.75], [-5.25, 53.65], [-5.18, 53.68], [-5.03, 54.03], [-4.68, 54.18], [-4.53, 54.53], [-4.18, 54.68], [-4.03, 55.03], [-3.5, 55.25], [-2.97, 55.03], [-2.75, 54.5], [-2.85, 54.25], [-2.82, 54.18], [-2.47, 54.03], [-2.25, 53.5], [-2.35, 53.25], [-2.32, 53.18], [-1.97, 53.03], [-1.75, 52.5], [-1.97, 51.97], [-2.32, 51.82], [-2.47, 51.47], [-2.82, 51.32], [-2.97, 50.97], [-3.5, 50.75], [-3.75, 50.85], [-4.0, 50.75], [-4.25, 50.85], [-4.5, 50.75], [-4.75, 50.85], [-5.0, 50.75], [-5.25, 50.85], [-5.5, 50.75], [-5.75, 50.85], [-5.82, 50.82], [-5.97, 50.47], [-6.5, 50.25], [-6.75, 50.35], [-7.0, 50.25], [-7.53, 50.47], [-7.68, 50.82], [-8.03, 50.97], [-8.25, 51.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.401694256419432}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.915558063233381}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.27344402820654, 12.645823592567808, 12.765882107302843]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.283007248216848, 13.464550371125313, 13.694322995357709]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.5840871070799714, 3.9877821776596574, 4.1748049049605145]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.3342227677503615, 6.3935483356899, 7.401694256419432]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5119048817585303, 1.6510078030407829, 1.724472008816936]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6718184897699193, 1.8711019434322016, 2.2283614440538053]}}