{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:25.950820", "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": "2014-Sep-26_to_2014-Sep-28_280.0_48.0"}, "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": 2014090002787}, "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": "September 26 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 28 2014"}, "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": 53855.78350780607}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": []}, "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": 48.0}, "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": 280.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 275.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 282.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.53, 48.53], [-84.0, 48.75], [-83.75, 48.65], [-83.68, 48.68], [-83.53, 49.03], [-83.0, 49.25], [-82.75, 49.15], [-82.5, 49.25], [-82.25, 49.15], [-82.0, 49.25], [-81.75, 49.15], [-81.5, 49.25], [-80.97, 49.03], [-80.82, 48.68], [-80.75, 48.65], [-80.5, 48.75], [-80.25, 48.65], [-80.0, 48.75], [-79.75, 48.65], [-79.5, 48.75], [-79.25, 48.65], [-79.0, 48.75], [-78.75, 48.65], [-78.68, 48.68], [-78.53, 49.03], [-78.0, 49.25], [-77.47, 49.03], [-77.25, 48.5], [-77.47, 47.97], [-77.82, 47.82], [-77.97, 47.47], [-78.5, 47.25], [-78.75, 47.35], [-78.82, 47.32], [-78.97, 46.97], [-79.5, 46.75], [-79.75, 46.85], [-80.0, 46.75], [-80.25, 46.85], [-80.5, 46.75], [-80.75, 46.85], [-81.0, 46.75], [-81.25, 46.85], [-81.5, 46.75], [-82.0, 46.96], [-82.5, 46.75], [-82.75, 46.85], [-83.0, 46.75], [-83.25, 46.85], [-83.5, 46.75], [-83.75, 46.85], [-84.0, 46.75], [-84.53, 46.97], [-84.75, 47.5], [-84.65, 47.75], [-84.75, 48.0], [-84.53, 48.53]]]]}, "2014-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.53, 48.53], [-84.0, 48.75], [-83.75, 48.65], [-83.68, 48.68], [-83.53, 49.03], [-83.0, 49.25], [-82.75, 49.15], [-82.5, 49.25], [-82.25, 49.15], [-82.0, 49.25], [-81.75, 49.15], [-81.5, 49.25], [-80.97, 49.03], [-80.82, 48.68], [-80.75, 48.65], [-80.5, 48.75], [-80.25, 48.65], [-80.0, 48.75], [-79.75, 48.65], [-79.5, 48.75], [-79.25, 48.65], [-79.0, 48.75], [-78.75, 48.65], [-78.68, 48.68], [-78.53, 49.03], [-78.0, 49.25], [-77.47, 49.03], [-77.25, 48.5], [-77.47, 47.97], [-77.82, 47.82], [-77.97, 47.47], [-78.5, 47.25], [-78.75, 47.35], [-78.82, 47.32], [-78.97, 46.97], [-79.5, 46.75], [-79.75, 46.85], [-80.0, 46.75], [-80.25, 46.85], [-80.5, 46.75], [-80.75, 46.85], [-81.0, 46.75], [-81.25, 46.85], [-81.5, 46.75], [-82.0, 46.96], [-82.5, 46.75], [-82.75, 46.85], [-83.0, 46.75], [-83.25, 46.85], [-83.5, 46.75], [-83.75, 46.85], [-84.0, 46.75], [-84.53, 46.97], [-84.75, 47.5], [-84.65, 47.75], [-84.75, 48.0], [-84.53, 48.53]]]]}, "2014-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.53, 48.53], [-84.0, 48.75], [-83.75, 48.65], [-83.68, 48.68], [-83.53, 49.03], [-83.0, 49.25], [-82.75, 49.15], [-82.5, 49.25], [-82.25, 49.15], [-82.0, 49.25], [-81.75, 49.15], [-81.5, 49.25], [-80.97, 49.03], [-80.82, 48.68], [-80.75, 48.65], [-80.5, 48.75], [-80.25, 48.65], [-80.0, 48.75], [-79.75, 48.65], [-79.5, 48.75], [-79.25, 48.65], [-79.0, 48.75], [-78.75, 48.65], [-78.68, 48.68], [-78.53, 49.03], [-78.0, 49.25], [-77.47, 49.03], [-77.25, 48.5], [-77.47, 47.97], [-77.82, 47.82], [-77.97, 47.47], [-78.5, 47.25], [-78.75, 47.35], [-78.82, 47.32], [-78.97, 46.97], [-79.5, 46.75], [-79.75, 46.85], [-80.0, 46.75], [-80.25, 46.85], [-80.5, 46.75], [-80.75, 46.85], [-81.0, 46.75], [-81.25, 46.85], [-81.5, 46.75], [-82.0, 46.96], [-82.5, 46.75], [-82.75, 46.85], [-83.0, 46.75], [-83.25, 46.85], [-83.5, 46.75], [-83.75, 46.85], [-84.0, 46.75], [-84.53, 46.97], [-84.75, 47.5], [-84.65, 47.75], [-84.75, 48.0], [-84.53, 48.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.209618904281683}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.681994409997646}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.916375900567232, 16.69139364552609, 16.079699957120283]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.628447805191684, 17.535013613971728, 17.012061903800316]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.0356690032340605, 7.223295427836311, 6.787018798922564]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.791540360864815, 8.209618904281683, 7.481007397210419]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.464010389545488, 1.7635000170337016, 1.6376483584555654]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5902379748846944, 2.0031385128423342, 1.7946999254945815]}}