{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:16.693454", "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": "2022-Jun-14_to_2022-Jun-17_356.5_59.0"}, "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": 2022060002236}, "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 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 17 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 57816.47650601329}, "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"]}, "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": ["Atlantic Ocean", "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": 59.0}, "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": 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": 354.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 360.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 60.03], [-6.0, 60.25], [-5.75, 60.15], [-5.5, 60.25], [-5.25, 60.15], [-5.0, 60.25], [-4.75, 60.15], [-4.5, 60.25], [-4.25, 60.15], [-4.0, 60.25], [-3.75, 60.15], [-3.5, 60.25], [-3.25, 60.15], [-3.0, 60.25], [-2.75, 60.15], [-2.5, 60.25], [-1.97, 60.03], [-1.82, 59.68], [-1.75, 59.65], [-1.5, 59.75], [-1.25, 59.65], [-1.0, 59.75], [-0.75, 59.65], [-0.68, 59.68], [-0.53, 60.03], [0.0, 60.25], [0.53, 60.03], [0.75, 59.5], [0.65, 59.25], [0.75, 59.0], [0.53, 58.47], [0.0, 58.25], [0.53, 58.03], [0.75, 57.5], [0.65, 57.25], [0.75, 57.0], [0.53, 56.47], [0.0, 56.25], [-0.53, 56.47], [-0.68, 56.82], [-1.03, 56.97], [-1.18, 57.32], [-1.25, 57.35], [-1.5, 57.25], [-1.75, 57.35], [-1.82, 57.32], [-1.97, 56.97], [-2.5, 56.75], [-3.03, 56.97], [-3.18, 57.32], [-3.25, 57.35], [-3.5, 57.25], [-4.03, 57.47], [-4.18, 57.82], [-4.25, 57.85], [-4.5, 57.75], [-5.03, 57.97], [-5.18, 58.32], [-5.53, 58.47], [-5.68, 58.82], [-5.75, 58.85], [-6.0, 58.75], [-6.53, 58.97], [-6.75, 59.5], [-6.53, 60.03]], [[-0.25, 58.35], [-0.37, 58.3], [-0.32, 58.18], [-0.25, 58.15], [0.0, 58.25], [-0.25, 58.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.0, 58.75], [-6.529999999999973, 58.97], [-6.75, 59.5], [-6.529999999999973, 60.03], [-6.0, 60.25], [-5.75, 60.15], [-5.5, 60.25], [-5.25, 60.15], [-5.0, 60.25], [-4.75, 60.15], [-4.5, 60.25], [-4.25, 60.15], [-4.0, 60.25], [-3.75, 60.15], [-3.5, 60.25], [-3.25, 60.15], [-3.0, 60.25], [-2.75, 60.15], [-2.5, 60.25], [-1.9700000000000273, 60.03], [-1.75, 59.5], [-1.8500000000000227, 59.25], [-1.75, 59.0], [-1.9700000000000273, 58.47], [-2.5, 58.25], [-2.75, 58.35], [-3.0, 58.25], [-3.25, 58.35], [-3.5, 58.25], [-3.75, 58.35], [-4.0, 58.25], [-4.529999999999973, 58.47], [-4.680000000000007, 58.82], [-4.75, 58.85], [-5.0, 58.75], [-5.25, 58.85], [-5.5, 58.75], [-5.75, 58.85], [-6.0, 58.75]]]]}, "2022-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.0, 58.75], [-6.529999999999973, 58.97], [-6.75, 59.5], [-6.529999999999973, 60.03], [-6.0, 60.25], [-5.75, 60.15], [-5.5, 60.25], [-5.25, 60.15], [-5.0, 60.25], [-4.75, 60.15], [-4.5, 60.25], [-4.25, 60.15], [-4.0, 60.25], [-3.75, 60.15], [-3.5, 60.25], [-3.25, 60.15], [-3.0, 60.25], [-2.75, 60.15], [-2.5, 60.25], [-1.9700000000000273, 60.03], [-1.8199999999999932, 59.68], [-1.75, 59.65], [-1.5, 59.75], [-1.25, 59.65], [-1.0, 59.75], [-0.75, 59.65], [-0.6800000000000068, 59.68], [-0.5299999999999727, 60.03], [0.0, 60.25], [0.5299999999999727, 60.03], [0.75, 59.5], [0.6499999999999773, 59.25], [0.75, 59.0], [0.5299999999999727, 58.47], [0.0, 58.25], [0.5299999999999727, 58.03], [0.75, 57.5], [0.6499999999999773, 57.25], [0.75, 57.0], [0.5299999999999727, 56.47], [0.0, 56.25], [-0.5299999999999727, 56.47], [-0.6800000000000068, 56.82], [-1.0299999999999727, 56.97], 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duration", "value": 1.97040852174271}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.84834524105122, 12.476476721012205, 12.750411985395488, 13.041562220558205]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.14819763866052, 15.653351955295363, 16.74894673068053, 16.15078927551582]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.603907521099946, 1.8110495225877443, 2.014812282994228, 2.222801634887194]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7253981419914908, 3.2773677777654484, 4.217563512442723, 3.5195624733818818]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3423463625917185, 1.4034735867867751, 1.561409417719798, 1.8188924682960603]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4022799693878105, 1.589477326007775, 1.9823035004077887, 2.1673850114947992]}}