{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:26.750460", "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-May-04_to_2014-May-06_272.0_61.5"}, "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": 2014050001553}, "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 04 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 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": 78333.83154634538}, "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": ["N.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": ["Hudson Bay"]}, "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": 61.5}, "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": 272.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "272.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 268.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 62.03], [-91.5, 62.25], [-91.25, 62.15], [-91.18, 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59.75], [-89.53, 59.97], [-89.68, 60.32], [-89.75, 60.35], [-90.0, 60.25], [-90.25, 60.35], [-90.5, 60.25], [-90.75, 60.35], [-91.0, 60.25], [-91.25, 60.35], [-91.5, 60.25], [-92.03, 60.47], [-92.25, 61.0], [-92.15, 61.25], [-92.25, 61.5], [-92.03, 62.03]]]]}, "2014-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 62.03], [-91.5, 62.25], [-91.25, 62.15], [-91.18, 62.18], [-91.03, 62.53], [-90.5, 62.75], [-90.25, 62.65], [-90.0, 62.75], [-89.75, 62.65], [-89.5, 62.75], [-89.25, 62.65], [-89.0, 62.75], [-88.75, 62.65], [-88.5, 62.75], [-88.25, 62.65], [-88.0, 62.75], [-87.75, 62.65], [-87.5, 62.75], [-87.25, 62.65], [-87.0, 62.75], [-86.75, 62.65], [-86.5, 62.75], [-86.25, 62.65], [-86.0, 62.75], [-85.75, 62.65], [-85.5, 62.75], [-85.25, 62.65], [-85.0, 62.75], [-84.75, 62.65], [-84.68, 62.68], [-84.53, 63.03], [-84.0, 63.25], [-83.75, 63.15], [-83.5, 63.25], [-82.97, 63.03], [-82.82, 62.68], [-82.47, 62.53], [-82.25, 62.0], [-82.47, 61.47], [-83.0, 61.25], [-83.25, 61.35], [-83.5, 61.25], [-83.75, 61.35], [-83.82, 61.32], [-83.97, 60.97], [-84.5, 60.75], [-84.75, 60.85], [-84.82, 60.82], [-84.97, 60.47], [-85.32, 60.32], [-85.47, 59.97], [-86.0, 59.75], [-86.25, 59.85], [-86.5, 59.75], [-86.75, 59.85], [-87.0, 59.75], [-87.25, 59.85], [-87.5, 59.75], [-87.75, 59.85], [-88.0, 59.75], [-88.25, 59.85], [-88.5, 59.75], [-88.75, 59.85], [-89.0, 59.75], [-89.53, 59.97], [-89.68, 60.32], [-89.75, 60.35], [-90.0, 60.25], [-90.25, 60.35], [-90.5, 60.25], [-90.75, 60.35], [-91.0, 60.25], [-91.25, 60.35], [-91.5, 60.25], [-92.03, 60.47], [-92.25, 61.0], [-92.15, 61.25], [-92.25, 61.5], [-92.03, 62.03]]]]}, "2014-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 62.03], [-91.5, 62.25], [-91.25, 62.15], [-91.18, 62.18], [-91.03, 62.53], [-90.5, 62.75], [-90.25, 62.65], [-90.0, 62.75], [-89.75, 62.65], [-89.5, 62.75], [-89.25, 62.65], [-89.0, 62.75], [-88.75, 62.65], [-88.5, 62.75], [-88.25, 62.65], [-88.0, 62.75], 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[-92.15, 61.25], [-92.25, 61.5], [-92.03, 62.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.501812812718242}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.99845460993372}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.3537596846263114, -0.8864946882259233, -1.243110230542527]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.5930850727141319, -0.3850026395246573, -0.7933555374222578]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.070367410400545, 5.238599569537618, 4.686396849862991]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.801914107384505, 6.501812812718242, 5.294739425136129]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7516851465708199, 1.8346366484734384, 1.630646353816017]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.960179123987365, 2.0127401320264227, 1.8615604929057195]}}