{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:51.459331", "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": "2011-Jun-30_to_2011-Jul-03_270.0_56.0"}, "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": 2011060003120}, "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 30 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 03 2011"}, "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": 111611.09294488901}, "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": []}, "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": 56.0}, "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": 270.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "270.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 267.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.03, 54.53], [-92.5, 54.75], [-92.2, 54.62], [-92.03, 55.03], [-91.5, 55.25], [-91.25, 55.15], [-91.12, 55.2], [-91.18, 55.32], [-91.53, 55.47], [-91.75, 56.0], [-91.53, 56.53], [-91.0, 56.75], [-90.75, 56.65], [-90.5, 56.75], [-90.25, 56.65], [-90.0, 56.75], [-89.47, 56.53], [-89.32, 56.18], [-89.25, 56.15], [-89.0, 56.25], [-88.75, 56.15], [-88.5, 56.25], [-88.25, 56.15], [-88.0, 56.25], [-87.47, 56.03], [-87.25, 55.5], [-87.47, 54.97], [-87.82, 54.82], [-87.85, 54.75], [-87.75, 54.5], [-87.85, 54.25], [-87.82, 54.18], [-87.47, 54.03], [-87.25, 53.5], [-87.35, 53.25], [-87.25, 53.0], [-87.35, 52.75], [-87.25, 52.5], [-87.47, 51.97], [-87.82, 51.82], [-87.97, 51.47], [-88.5, 51.25], [-88.75, 51.35], [-89.0, 51.25], [-89.25, 51.35], [-89.5, 51.25], [-89.75, 51.35], [-89.82, 51.32], [-89.97, 50.97], [-90.5, 50.75], [-91.03, 50.97], [-91.25, 51.5], [-91.15, 51.75], [-91.18, 51.82], [-91.53, 51.97], [-91.68, 52.32], [-91.75, 52.35], [-92.0, 52.25], [-92.25, 52.35], [-92.5, 52.25], [-93.03, 52.47], [-93.25, 53.0], [-93.04, 53.5], [-93.25, 54.0], [-93.03, 54.53]]]]}, "2011-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.03, 54.53], [-92.5, 54.75], [-92.2, 54.62], [-92.03, 55.03], [-91.5, 55.25], [-91.25, 55.15], [-91.12, 55.2], [-91.18, 55.32], [-91.53, 55.47], [-91.75, 56.0], [-91.53, 56.53], [-91.0, 56.75], [-90.75, 56.65], [-90.5, 56.75], [-90.25, 56.65], [-90.0, 56.75], [-89.47, 56.53], [-89.32, 56.18], [-89.25, 56.15], [-89.0, 56.25], [-88.75, 56.15], [-88.5, 56.25], [-88.25, 56.15], [-88.0, 56.25], [-87.47, 56.03], [-87.25, 55.5], [-87.47, 54.97], [-87.82, 54.82], [-87.85, 54.75], [-87.75, 54.5], [-87.85, 54.25], [-87.82, 54.18], [-87.47, 54.03], [-87.25, 53.5], [-87.35, 53.25], [-87.25, 53.0], [-87.35, 52.75], [-87.25, 52.5], [-87.46, 52.0], [-87.25, 51.5], [-87.47, 50.97], [-88.0, 50.75], [-88.25, 50.85], [-88.5, 50.75], [-89.03, 50.97], [-89.18, 51.32], [-89.25, 51.35], [-89.5, 51.25], [-89.75, 51.35], [-89.82, 51.32], [-89.97, 50.97], [-90.5, 50.75], [-91.03, 50.97], [-91.25, 51.5], [-91.15, 51.75], [-91.18, 51.82], [-91.53, 51.97], [-91.68, 52.32], [-91.75, 52.35], [-92.0, 52.25], [-92.25, 52.35], [-92.5, 52.25], [-93.03, 52.47], [-93.25, 53.0], [-93.04, 53.5], [-93.25, 54.0], [-93.03, 54.53]]]]}, "2011-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.03, 54.53], [-92.5, 54.75], [-92.2, 54.62], [-92.03, 55.03], [-91.5, 55.25], [-91.25, 55.15], [-91.12, 55.2], [-91.18, 55.32], [-91.53, 55.47], [-91.75, 56.0], [-91.53, 56.53], [-91.0, 56.75], [-90.75, 56.65], [-90.5, 56.75], [-90.25, 56.65], [-90.0, 56.75], [-89.47, 56.53], [-89.32, 56.18], [-89.25, 56.15], [-89.0, 56.25], [-88.75, 56.15], [-88.5, 56.25], [-88.25, 56.15], [-88.0, 56.25], [-87.47, 56.03], [-87.25, 55.5], [-87.47, 54.97], [-87.82, 54.82], [-87.85, 54.75], [-87.75, 54.5], [-87.85, 54.25], [-87.82, 54.18], [-87.47, 54.03], [-87.25, 53.5], [-87.35, 53.25], [-87.25, 53.0], [-87.35, 52.75], [-87.25, 52.5], [-87.46, 52.0], [-87.25, 51.5], [-87.47, 50.97], [-88.0, 50.75], [-88.25, 50.85], [-88.5, 50.75], [-89.03, 50.97], [-89.18, 51.32], [-89.25, 51.35], [-89.5, 51.25], [-89.75, 51.35], [-89.82, 51.32], [-89.97, 50.97], [-90.5, 50.75], [-91.03, 50.97], [-91.25, 51.5], [-91.15, 51.75], [-91.18, 51.82], [-91.53, 51.97], [-91.68, 52.32], [-91.75, 52.35], [-92.0, 52.25], [-92.25, 52.35], [-92.5, 52.25], [-93.03, 52.47], [-93.25, 53.0], [-93.04, 53.5], [-93.25, 54.0], [-93.03, 54.53]]]]}, "2011-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.03, 50.97], [-89.25, 51.5], [-89.03, 52.03], [-88.5, 52.25], [-88.25, 52.15], [-88.0, 52.25], [-87.47, 52.03], [-87.25, 51.5], [-87.47, 50.97], [-88.0, 50.75], [-88.25, 50.85], [-88.5, 50.75], [-89.03, 50.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.772451953944483}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.6823446990036794}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.507178810812775, 24.62887902943612, 21.641102546838965, 19.76481011304304]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.017181901024287, 26.077033672381617, 23.564240468003902, 19.86845271981298]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.359838544872117, 9.427353355190277, 6.342553520560806, 4.837143174701026]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.953677782954571, 12.772451953944483, 7.570048089287752, 4.884631084744001]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6325606531071513, 2.1316014230400393, 1.4624369885194035, 1.4059672722445047]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0169889873289035, 2.4786666107316373, 1.9138500148256736, 1.4090539382040472]}}