{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:35.815050", "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": "2013-Sep-23_to_2013-Sep-25_266.5_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": 2013090002612}, "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 23 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 25 2013"}, "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": 153863.74176630806}, "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": 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": 266.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 263.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 56.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.03, 58.03], [-96.68, 58.18], [-96.65, 58.25], [-96.75, 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57.82], [-92.97, 57.47], [-93.5, 57.25], [-93.75, 57.35], [-93.82, 57.32], [-93.97, 56.97], [-94.5, 56.75], [-94.75, 56.85], [-94.82, 56.82], [-94.97, 56.47], [-95.5, 56.25], [-95.75, 56.35], [-96.0, 56.25], [-96.25, 56.35], [-96.5, 56.25], [-97.03, 56.47], [-97.25, 57.0], [-97.15, 57.25], [-97.25, 57.5], [-97.03, 58.03]], [[-92.25, 62.35], [-92.5, 62.25], [-92.25, 62.15], [-92.0, 62.25], [-92.25, 62.35]], [[-92.75, 62.35], [-92.82, 62.32], [-92.85, 62.25], [-92.82, 62.18], [-92.75, 62.15], [-92.5, 62.25], [-92.75, 62.35]]]]}, "2013-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.03, 58.03], [-96.68, 58.18], [-96.65, 58.25], [-96.75, 58.5], [-96.53, 59.03], [-96.18, 59.18], [-96.15, 59.25], [-96.18, 59.32], [-96.53, 59.47], [-96.68, 59.82], [-97.03, 59.97], [-97.25, 60.5], [-97.03, 61.03], [-96.5, 61.25], [-96.25, 61.15], [-96.18, 61.18], [-96.04, 61.5], [-96.25, 62.0], [-96.15, 62.25], [-96.25, 62.5], [-96.03, 63.03], [-95.5, 63.25], [-95.25, 63.15], 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"value": 8.530122954923627}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.098453339505761}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.738900271110083, 9.550631305760476, 9.306641323289455]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.648696921312819, 14.155223254729606, 13.177665656694046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.160922335934273, 5.06618345981556, 5.068254222767457]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.530122954923627, 8.21784862493962, 7.929178264325856]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.741190340584398, 1.7047770868077492, 1.751572369860031]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2953021261829414, 2.1556317935628324, 2.3339105120352577]}}