{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:08.553112", "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-May-31_to_2024-Jun-03_9.5_58.5"}, "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": 2024050002364}, "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": "May 31 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2024"}, "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": 58685.947270161225}, "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": ["Denmark", "Norway", "Sweden"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe", "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": ["Kattegat"]}, "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": 58.5}, "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": 9.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "9.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 8.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 13.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 56.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 60.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[8.0, 58.75], [8.25, 58.65], [8.32, 58.68], [8.47, 59.03], [8.82, 59.18], [8.97, 59.53], [9.5, 59.75], [9.75, 59.65], [10.0, 59.75], [10.25, 59.65], [10.5, 59.75], [10.75, 59.65], [10.82, 59.68], [10.85, 59.75], [10.75, 60.0], [10.97, 60.53], [11.5, 60.75], [12.03, 60.53], [12.18, 60.18], [12.25, 60.15], [12.5, 60.25], [12.75, 60.15], [13.0, 60.25], [13.53, 60.03], [13.75, 59.5], [13.53, 58.97], [13.18, 58.82], [13.03, 58.47], [12.5, 58.25], [12.25, 58.35], [12.18, 58.32], [12.15, 58.25], [12.25, 58.0], [12.15, 57.75], [12.18, 57.68], [12.53, 57.53], [12.75, 57.0], [12.53, 56.47], [12.18, 56.32], [12.03, 55.97], [11.5, 55.75], [11.25, 55.85], [11.0, 55.75], [10.75, 55.85], [10.5, 55.75], [9.97, 55.97], [9.75, 56.5], [9.85, 56.75], [9.8, 56.88], [9.5, 56.75], [9.25, 56.85], [9.0, 56.75], [8.75, 56.85], [8.5, 56.75], [7.97, 56.97], [7.82, 57.32], [7.47, 57.47], [7.25, 58.0], [7.47, 58.53], [8.0, 58.75]]]]}}, "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": {"2024-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.47, 57.47], [7.25, 58.0], [7.47, 58.53], [8.0, 58.75], [8.25, 58.65], [8.32, 58.68], [8.47, 59.03], [8.82, 59.18], [8.97, 59.53], [9.5, 59.75], [9.75, 59.65], [10.0, 59.75], [10.25, 59.65], [10.5, 59.75], [10.75, 59.65], [10.82, 59.68], [10.85, 59.75], [10.75, 60.0], [10.97, 60.53], [11.5, 60.75], [12.03, 60.53], [12.18, 60.18], [12.25, 60.15], [12.5, 60.25], [12.75, 60.15], [13.0, 60.25], [13.53, 60.03], [13.75, 59.5], [13.53, 58.97], [13.18, 58.82], [13.03, 58.47], [12.5, 58.25], [12.25, 58.35], [12.18, 58.32], [12.15, 58.25], [12.25, 58.0], [12.15, 57.75], [12.18, 57.68], [12.53, 57.53], [12.75, 57.0], [12.53, 56.47], [12.18, 56.32], [12.03, 55.97], [11.5, 55.75], [11.25, 55.85], [11.0, 55.75], [10.75, 55.85], [10.5, 55.75], [9.97, 55.97], [9.75, 56.5], [9.85, 56.75], [9.8, 56.88], [9.5, 56.75], [9.25, 56.85], [9.0, 56.75], [8.75, 56.85], [8.5, 56.75], [7.97, 56.97], [7.82, 57.32], [7.47, 57.47]]]]}, "2024-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.47, 57.47], [7.25, 58.0], [7.47, 58.53], [8.0, 58.75], [8.25, 58.65], [8.32, 58.68], [8.47, 59.03], [8.82, 59.18], [8.97, 59.53], [9.5, 59.75], [9.75, 59.65], [10.0, 59.75], [10.25, 59.65], [10.5, 59.75], [10.75, 59.65], [10.82, 59.68], [10.85, 59.75], [10.75, 60.0], [10.97, 60.53], [11.5, 60.75], [12.03, 60.53], [12.18, 60.18], [12.25, 60.15], [12.5, 60.25], [12.75, 60.15], [13.0, 60.25], [13.53, 60.03], [13.75, 59.5], [13.53, 58.97], [13.18, 58.82], [13.03, 58.47], [12.5, 58.25], [12.25, 58.35], [12.18, 58.32], [12.15, 58.25], [12.25, 58.0], [12.15, 57.75], [12.18, 57.68], [12.53, 57.53], [12.75, 57.0], [12.53, 56.47], [12.18, 56.32], [12.03, 55.97], [11.5, 55.75], [11.25, 55.85], [11.0, 55.75], [10.75, 55.85], [10.5, 55.75], [9.97, 55.97], [9.75, 56.5], [9.85, 56.75], [9.8, 56.88], [9.5, 56.75], [9.25, 56.85], [9.0, 56.75], [8.75, 56.85], [8.5, 56.75], [7.97, 56.97], [7.82, 57.32], [7.47, 57.47]]]]}, "2024-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.47, 57.47], [7.25, 58.0], [7.47, 58.53], [8.0, 58.75], [8.25, 58.65], [8.32, 58.68], [8.47, 59.03], [8.82, 59.18], [8.97, 59.53], [9.5, 59.75], [9.75, 59.65], [10.0, 59.75], [10.25, 59.65], [10.5, 59.75], [10.75, 59.65], [10.82, 59.68], [10.85, 59.75], [10.75, 60.0], [10.97, 60.53], [11.5, 60.75], [12.03, 60.53], [12.18, 60.18], [12.25, 60.15], [12.5, 60.25], [12.75, 60.15], [13.0, 60.25], [13.53, 60.03], [13.75, 59.5], [13.53, 58.97], [13.18, 58.82], [13.03, 58.47], [12.5, 58.25], [12.25, 58.35], [12.18, 58.32], [12.15, 58.25], [12.25, 58.0], [12.15, 57.75], [12.18, 57.68], [12.53, 57.53], [12.75, 57.0], [12.53, 56.47], [12.18, 56.32], [12.03, 55.97], [11.5, 55.75], [11.25, 55.85], [11.0, 55.75], [10.75, 55.85], [10.5, 55.75], [9.97, 55.97], [9.75, 56.5], [9.85, 56.75], [9.8, 56.88], [9.5, 56.75], [9.25, 56.85], [9.0, 56.75], [8.75, 56.85], [8.5, 56.75], [7.97, 56.97], [7.82, 57.32], [7.47, 57.47]]]]}, "2024-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 59.03], [9.5, 59.25], [10.03, 59.03], [10.25, 58.5], [10.03, 57.97], [9.5, 57.75], [8.97, 57.97], [8.75, 58.5], [8.97, 59.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.278808291770929}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.5759954113368275}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.356136632677362, 18.092855401726297, 18.38654814095446, 17.37101876021046]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.50817923685031, 19.774937607111212, 20.187339630913982, 17.37101876021046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.166530601858499, 4.7399296124533645, 4.842719947566378, 3.8130140080974684]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.673385171889265, 5.771647040144899, 6.278808291770929, 3.8130140080974684]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6181541333989158, 1.847991037690949, 1.8779130511069206, 1.6344495540594035]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8222262376803515, 2.364331912626376, 2.2361231854687578, 1.6344495540594035]}}