{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:40.712523", "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-Apr-15_to_2022-Apr-19_343.0_28.0"}, "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": 2022040001954}, "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": "April 15 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 19 2022"}, "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": 95705.82346732236}, "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": ["Spain"]}, "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", "Canary Ridge"]}, "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": 28.0}, "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": 343.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-19.04, 28.0], [-19.25, 28.5], [-19.03, 29.03], [-18.5, 29.25], [-18.25, 29.15], [-18.0, 29.25], [-17.5, 29.04], [-17.18, 29.18], [-17.03, 29.53], [-16.5, 29.75], [-16.25, 29.65], [-16.0, 29.75], [-15.75, 29.65], [-15.5, 29.75], [-14.97, 29.53], [-14.82, 29.18], [-14.75, 29.15], [-14.5, 29.25], [-14.25, 29.15], [-14.0, 29.25], [-13.47, 29.03], [-13.25, 28.5], [-13.35, 28.25], [-13.25, 28.0], [-13.47, 27.47], [-13.82, 27.32], [-13.97, 26.97], [-14.5, 26.75], [-15.0, 26.96], [-15.32, 26.82], [-15.47, 26.47], [-16.0, 26.25], [-16.25, 26.35], [-16.5, 26.25], [-16.75, 26.35], [-16.82, 26.32], [-16.97, 25.97], [-17.5, 25.75], [-17.75, 25.85], [-18.0, 25.75], [-18.25, 25.85], [-18.5, 25.75], [-19.03, 25.97], [-19.25, 26.5], [-19.15, 26.75], [-19.25, 27.0], [-19.15, 27.25], [-19.25, 27.5], [-19.04, 28.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.0, 27.25], [-17.529999999999973, 27.47], [-17.75, 28.0], [-17.529999999999973, 28.53], [-17.0, 28.75], [-16.75, 28.65], [-16.5, 28.75], [-15.970000000000027, 28.53], [-15.75, 28.0], [-15.970000000000027, 27.47], [-16.5, 27.25], [-16.75, 27.35], [-17.0, 27.25]]]]}, "2022-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.25, 27.0], [-19.149999999999977, 27.25], [-19.25, 27.5], [-19.04000000000002, 28.0], [-19.25, 28.5], [-19.029999999999973, 29.03], [-18.5, 29.25], [-18.25, 29.15], [-18.0, 29.25], [-17.5, 29.04], [-17.180000000000007, 29.18], [-17.029999999999973, 29.53], [-16.5, 29.75], [-16.25, 29.65], [-16.0, 29.75], [-15.75, 29.65], [-15.5, 29.75], [-14.970000000000027, 29.53], [-14.819999999999993, 29.18], [-14.75, 29.15], [-14.5, 29.25], [-14.25, 29.15], [-14.0, 29.25], [-13.470000000000027, 29.03], [-13.25, 28.5], [-13.350000000000023, 28.25], [-13.25, 28.0], [-13.470000000000027, 27.47], [-13.819999999999993, 27.32], [-13.970000000000027, 26.97], [-14.5, 26.75], [-15.0, 26.96], [-15.319999999999993, 26.82], [-15.470000000000027, 26.47], [-16.0, 26.25], [-16.25, 26.35], [-16.5, 26.25], [-16.75, 26.35], [-16.819999999999993, 26.32], [-16.970000000000027, 25.97], [-17.5, 25.75], [-17.75, 25.85], [-18.0, 25.75], [-18.25, 25.85], [-18.5, 25.75], [-19.029999999999973, 25.97], [-19.25, 26.5], [-19.149999999999977, 26.75], [-19.25, 27.0]]]]}, "2022-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.25, 27.0], [-19.149999999999977, 27.25], [-19.25, 27.5], [-19.04000000000002, 28.0], [-19.25, 28.5], [-19.029999999999973, 29.03], [-18.5, 29.25], [-18.25, 29.15], [-18.0, 29.25], [-17.5, 29.04], [-17.180000000000007, 29.18], [-17.029999999999973, 29.53], [-16.5, 29.75], [-16.25, 29.65], [-16.0, 29.75], [-15.75, 29.65], [-15.5, 29.75], [-14.970000000000027, 29.53], [-14.819999999999993, 29.18], [-14.75, 29.15], [-14.5, 29.25], [-14.25, 29.15], [-14.0, 29.25], [-13.470000000000027, 29.03], [-13.25, 28.5], [-13.350000000000023, 28.25], [-13.25, 28.0], [-13.470000000000027, 27.47], [-13.819999999999993, 27.32], [-13.970000000000027, 26.97], [-14.5, 26.75], [-15.0, 26.96], [-15.319999999999993, 26.82], [-15.470000000000027, 26.47], [-16.0, 26.25], [-16.25, 26.35], [-16.5, 26.25], [-16.75, 26.35], [-16.819999999999993, 26.32], [-16.970000000000027, 25.97], [-17.5, 25.75], [-17.75, 25.85], [-18.0, 25.75], [-18.25, 25.85], [-18.5, 25.75], [-19.029999999999973, 25.97], [-19.25, 26.5], [-19.149999999999977, 26.75], [-19.25, 27.0]]]]}, "2022-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.25, 27.0], [-19.149999999999977, 27.25], [-19.25, 27.5], [-19.04000000000002, 28.0], [-19.25, 28.5], [-19.029999999999973, 29.03], [-18.5, 29.25], [-18.25, 29.15], [-18.0, 29.25], [-17.5, 29.04], [-17.180000000000007, 29.18], [-17.029999999999973, 29.53], [-16.5, 29.75], [-16.25, 29.65], [-16.0, 29.75], [-15.75, 29.65], [-15.5, 29.75], [-14.970000000000027, 29.53], 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[-18.25, 27.5], [-18.029999999999973, 28.03], [-17.680000000000007, 28.18], [-17.529999999999973, 28.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.699164628867436}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0387643824871096}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.989396703279795, 19.648424880536936, 21.013645795377613, 20.385402697974257, 19.697699451685708]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.306008108664628, 21.087408348525344, 23.91039863415955, 21.481251419544208, 19.856389391520622]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5776005909405342, 1.4222770934297646, 2.747187004691188, 2.0582056316255146, 1.0468134501915454]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.845462578065849, 3.647859661449047, 6.699164628867436, 4.930856180997637, 1.316818450360529]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4606420465001024, 1.752897277436141, 3.1754147026332378, 2.3219890355519106, 1.1785137613119194]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4683352196434039, 2.8627547297412166, 4.970961564110997, 3.287592790669952, 1.2421546955315024]}}