{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:41.627541", "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": "2012-Oct-15_to_2012-Oct-24_266.5_59.5"}, "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": 2012100002211}, "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": "October 15 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 120290.36271475481}, "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": 59.5}, "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": 264.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 271.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.53, 60.47], [-93.75, 61.0], [-93.53, 61.53], [-93.0, 61.75], [-92.75, 61.65], [-92.5, 61.75], [-91.97, 61.53], [-91.75, 61.0], [-91.97, 60.47], [-92.5, 60.25], [-92.75, 60.35], [-93.0, 60.25], [-93.53, 60.47]]]]}, "2012-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.65, 59.25], [-95.75, 59.5], [-95.65, 59.75], [-95.75, 60.0], [-95.53, 60.53], [-95.0, 60.75], [-94.75, 60.65], [-94.5, 60.75], [-94.25, 60.65], [-94.0, 60.75], [-93.75, 60.65], [-93.62, 60.7], [-93.75, 61.0], [-93.53, 61.53], [-93.0, 61.75], [-92.75, 61.65], [-92.68, 61.68], [-92.53, 62.03], [-92.0, 62.25], [-91.75, 62.15], [-91.68, 62.18], [-91.53, 62.53], [-91.0, 62.75], [-90.75, 62.65], [-90.5, 62.75], [-90.25, 62.65], [-90.0, 62.75], [-89.75, 62.65], [-89.5, 62.75], [-88.97, 62.53], [-88.82, 62.18], [-88.47, 62.03], [-88.25, 61.5], [-88.47, 60.97], [-89.0, 60.75], [-89.25, 60.85], [-89.32, 60.82], [-89.46, 60.5], [-89.32, 60.18], [-88.97, 60.03], [-88.75, 59.5], [-88.97, 58.97], [-89.5, 58.75], [-89.75, 58.85], [-90.0, 58.75], [-90.25, 58.85], [-90.5, 58.75], [-90.75, 58.85], [-91.0, 58.75], [-91.25, 58.85], [-91.5, 58.75], [-91.75, 58.85], [-92.0, 58.75], [-92.25, 58.85], [-92.32, 58.82], [-92.35, 58.75], [-92.25, 58.5], [-92.35, 58.25], [-92.32, 58.18], [-91.97, 58.03], [-91.75, 57.5], [-91.97, 56.97], [-92.5, 56.75], [-92.75, 56.85], [-93.0, 56.75], [-93.25, 56.85], [-93.5, 56.75], [-93.75, 56.85], [-94.0, 56.75], [-94.53, 56.97], [-94.68, 57.32], [-95.03, 57.47], [-95.18, 57.82], [-95.53, 57.97], [-95.75, 58.5], [-95.65, 58.75], [-95.75, 59.0], [-95.65, 59.25]], [[-91.18, 60.82], [-91.25, 60.85], [-91.37, 60.8], [-91.32, 60.68], [-91.25, 60.65], [-91.12, 60.7], [-91.18, 60.82]]]]}, "2012-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.65, 59.25], [-95.75, 59.5], [-95.65, 59.75], [-95.75, 60.0], [-95.53, 60.53], [-95.0, 60.75], [-94.75, 60.65], [-94.5, 60.75], [-94.25, 60.65], [-94.0, 60.75], [-93.75, 60.65], [-93.62, 60.7], [-93.75, 61.0], [-93.53, 61.53], [-93.0, 61.75], [-92.75, 61.65], [-92.68, 61.68], [-92.53, 62.03], [-92.0, 62.25], [-91.75, 62.15], [-91.68, 62.18], [-91.53, 62.53], [-91.0, 62.75], [-90.75, 62.65], [-90.5, 62.75], [-90.25, 62.65], [-90.0, 62.75], [-89.75, 62.65], [-89.5, 62.75], [-88.97, 62.53], [-88.82, 62.18], [-88.75, 62.15], [-88.5, 62.25], [-87.97, 62.03], [-87.75, 61.5], [-87.97, 60.97], [-88.5, 60.75], [-88.75, 60.85], [-89.0, 60.75], [-89.25, 60.85], [-89.32, 60.82], [-89.35, 60.75], [-89.32, 60.68], [-88.97, 60.53], [-88.75, 60.0], [-88.85, 59.75], [-88.75, 59.5], [-88.97, 58.97], [-89.5, 58.75], [-89.75, 58.85], [-90.0, 58.75], [-90.25, 58.85], [-90.5, 58.75], [-90.75, 58.85], [-91.0, 58.75], [-91.25, 58.85], [-91.5, 58.75], [-91.75, 58.85], [-92.0, 58.75], [-92.25, 58.85], [-92.32, 58.82], [-92.35, 58.75], [-92.25, 58.5], [-92.35, 58.25], [-92.32, 58.18], [-91.97, 58.03], [-91.75, 57.5], [-91.97, 56.97], [-92.5, 56.75], [-92.75, 56.85], [-93.0, 56.75], [-93.25, 56.85], [-93.5, 56.75], [-93.75, 56.85], [-94.0, 56.75], [-94.53, 56.97], [-94.68, 57.32], [-95.03, 57.47], [-95.18, 57.82], [-95.53, 57.97], [-95.75, 58.5], [-95.65, 58.75], [-95.75, 59.0], [-95.65, 59.25]]]]}, "2012-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.65, 59.25], [-95.75, 59.5], [-95.65, 59.75], [-95.75, 60.0], [-95.53, 60.53], [-95.0, 60.75], [-94.75, 60.65], [-94.5, 60.75], [-94.25, 60.65], [-94.0, 60.75], [-93.75, 60.65], [-93.5, 60.75], [-93.25, 60.65], [-93.18, 60.68], [-93.15, 60.75], [-93.25, 61.0], [-93.03, 61.53], [-92.68, 61.68], [-92.53, 62.03], [-92.0, 62.25], [-91.75, 62.15], [-91.68, 62.18], [-91.53, 62.53], [-91.0, 62.75], [-90.75, 62.65], [-90.5, 62.75], [-90.25, 62.65], [-90.0, 62.75], [-89.75, 62.65], [-89.5, 62.75], [-88.97, 62.53], [-88.82, 62.18], [-88.75, 62.15], [-88.5, 62.25], [-87.97, 62.03], [-87.75, 61.5], [-87.97, 60.97], [-88.5, 60.75], [-88.75, 60.85], [-89.0, 60.75], [-89.25, 60.85], [-89.32, 60.82], [-89.35, 60.75], [-89.32, 60.68], [-88.97, 60.53], [-88.75, 60.0], [-88.85, 59.75], [-88.75, 59.5], [-88.97, 58.97], [-89.5, 58.75], [-89.75, 58.85], [-90.0, 58.75], [-90.25, 58.85], [-90.5, 58.75], [-90.75, 58.85], [-91.0, 58.75], [-91.25, 58.85], [-91.5, 58.75], [-91.75, 58.85], [-92.0, 58.75], [-92.25, 58.85], [-92.32, 58.82], [-92.35, 58.75], [-92.25, 58.5], [-92.35, 58.25], [-92.32, 58.18], [-91.97, 58.03], [-91.75, 57.5], [-91.97, 56.97], [-92.5, 56.75], [-92.75, 56.85], [-93.0, 56.75], [-93.25, 56.85], [-93.5, 56.75], [-93.75, 56.85], [-94.0, 56.75], [-94.53, 56.97], [-94.68, 57.32], [-95.03, 57.47], [-95.18, 57.82], [-95.53, 57.97], [-95.75, 58.5], [-95.65, 58.75], [-95.75, 59.0], [-95.65, 59.25]]]]}, "2012-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.53, 60.53], [-94.0, 60.75], [-93.5, 60.54], [-93.0, 60.75], [-92.75, 60.65], [-92.5, 60.75], [-92.25, 60.65], [-92.18, 60.68], [-92.03, 61.03], [-91.68, 61.18], [-91.65, 61.25], [-91.75, 61.5], [-91.53, 62.03], [-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], [-88.97, 62.53], [-88.82, 62.18], [-88.75, 62.15], [-88.5, 62.25], [-87.97, 62.03], [-87.75, 61.5], [-87.97, 60.97], [-88.5, 60.75], [-88.75, 60.85], [-89.0, 60.75], [-89.25, 60.85], [-89.32, 60.82], [-89.35, 60.75], [-89.32, 60.68], [-88.97, 60.53], [-88.75, 60.0], [-88.97, 59.47], [-89.5, 59.25], [-89.75, 59.35], [-90.0, 59.25], [-90.25, 59.35], [-90.5, 59.25], [-90.75, 59.35], [-91.0, 59.25], [-91.25, 59.35], [-91.32, 59.32], [-91.47, 58.97], [-92.0, 58.75], [-92.25, 58.85], [-92.37, 58.8], [-92.25, 58.5], [-92.35, 58.25], [-92.32, 58.18], [-91.97, 58.03], [-91.75, 57.5], [-91.97, 56.97], [-92.5, 56.75], [-93.03, 56.97], [-93.18, 57.32], [-93.25, 57.35], [-93.5, 57.25], [-94.03, 57.47], [-94.25, 58.0], [-94.15, 58.25], [-94.18, 58.32], [-94.53, 58.47], [-94.75, 59.0], [-94.54, 59.5], [-94.75, 60.0], [-94.53, 60.53]]]]}, "2012-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.25, 60.5], [-96.03, 61.03], [-95.5, 61.25], [-95.25, 61.15], [-95.0, 61.25], [-94.75, 61.15], [-94.68, 61.18], [-94.53, 61.53], [-94.18, 61.68], [-94.03, 62.03], [-93.68, 62.18], [-93.53, 62.53], [-93.0, 62.75], [-92.75, 62.65], [-92.5, 62.75], [-91.97, 62.53], [-91.75, 62.0], [-91.85, 61.75], [-91.75, 61.5], [-91.53, 62.03], [-91.0, 62.25], [-90.75, 62.15], [-90.5, 62.25], [-89.97, 62.03], [-89.75, 61.5], [-89.97, 60.97], [-90.32, 60.82], [-90.35, 60.75], [-90.25, 60.5], [-90.35, 60.25], [-90.25, 60.0], [-90.47, 59.47], [-91.0, 59.25], [-91.25, 59.35], [-91.5, 59.25], [-91.75, 59.35], [-92.0, 59.25], [-92.25, 59.35], [-92.32, 59.32], [-92.47, 58.97], [-92.82, 58.82], [-92.97, 58.47], [-93.5, 58.25], [-93.75, 58.35], [-94.0, 58.25], [-94.25, 58.35], [-94.5, 58.25], [-95.03, 58.47], [-95.18, 58.82], [-95.53, 58.97], [-95.75, 59.5], [-95.65, 59.75], [-95.68, 59.82], [-96.03, 59.97], [-96.25, 60.5]], [[-91.85, 61.25], [-91.8, 61.12], [-91.68, 61.18], [-91.65, 61.25], [-91.75, 61.5], [-91.85, 61.25]]]]}, "2012-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.25, 60.5], [-96.03, 61.03], [-95.5, 61.25], [-95.25, 61.15], [-95.0, 61.25], [-94.75, 61.15], [-94.68, 61.18], [-94.53, 61.53], [-94.18, 61.68], [-94.03, 62.03], [-93.68, 62.18], [-93.53, 62.53], [-93.0, 62.75], [-92.75, 62.65], [-92.5, 62.75], [-91.97, 62.53], [-91.75, 62.0], [-91.85, 61.75], [-91.75, 61.5], [-91.85, 61.25], [-91.75, 61.0], [-91.85, 60.75], [-91.82, 60.68], [-91.47, 60.53], [-91.25, 60.0], [-91.47, 59.47], [-92.0, 59.25], [-92.25, 59.35], [-92.32, 59.32], [-92.47, 58.97], [-92.82, 58.82], [-92.97, 58.47], [-93.5, 58.25], [-93.75, 58.35], [-94.0, 58.25], [-94.25, 58.35], [-94.5, 58.25], [-95.03, 58.47], [-95.18, 58.82], [-95.53, 58.97], [-95.75, 59.5], [-95.65, 59.75], [-95.68, 59.82], [-96.03, 59.97], [-96.25, 60.5]]]]}, "2012-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.25, 60.5], [-96.03, 61.03], [-95.5, 61.25], [-95.25, 61.15], [-95.0, 61.25], [-94.75, 61.15], [-94.68, 61.18], [-94.53, 61.53], [-94.18, 61.68], [-94.03, 62.03], [-93.68, 62.18], [-93.53, 62.53], [-93.0, 62.75], [-92.75, 62.65], [-92.5, 62.75], [-91.97, 62.53], [-91.75, 62.0], [-91.85, 61.75], [-91.75, 61.5], [-91.85, 61.25], [-91.75, 61.0], [-91.85, 60.75], [-91.75, 60.5], [-91.85, 60.25], [-91.75, 60.0], [-91.97, 59.47], [-92.5, 59.25], [-92.75, 59.35], [-92.82, 59.32], [-92.85, 59.25], [-92.75, 59.0], [-92.97, 58.47], [-93.5, 58.25], [-93.75, 58.35], [-94.0, 58.25], [-94.25, 58.35], [-94.5, 58.25], [-95.03, 58.47], [-95.18, 58.82], [-95.53, 58.97], [-95.75, 59.5], [-95.65, 59.75], [-95.68, 59.82], [-96.03, 59.97], [-96.25, 60.5]]]]}, "2012-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.03, 59.97], [-96.25, 60.5], [-96.03, 61.03], [-95.5, 61.25], [-95.25, 61.15], [-95.0, 61.25], [-94.75, 61.15], [-94.68, 61.18], [-94.53, 61.53], [-94.0, 61.75], [-93.75, 61.65], [-93.5, 61.75], [-93.25, 61.65], [-93.0, 61.75], [-92.75, 61.65], [-92.5, 61.75], [-91.97, 61.53], [-91.75, 61.0], [-91.85, 60.75], [-91.75, 60.5], [-91.85, 60.25], [-91.75, 60.0], [-91.97, 59.47], [-92.5, 59.25], [-92.75, 59.35], [-92.82, 59.32], [-92.85, 59.25], [-92.75, 59.0], [-92.97, 58.47], [-93.5, 58.25], [-94.03, 58.47], [-94.25, 59.0], [-94.15, 59.25], [-94.18, 59.32], [-94.53, 59.47], [-94.68, 59.82], [-94.75, 59.85], [-95.0, 59.75], [-95.25, 59.85], [-95.5, 59.75], [-96.03, 59.97]]]]}, "2012-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.25, 60.5], [-95.03, 61.03], [-94.5, 61.25], [-93.97, 61.03], [-93.82, 60.68], [-93.47, 60.53], [-93.32, 60.18], [-92.97, 60.03], [-92.75, 59.5], [-92.85, 59.25], [-92.75, 59.0], [-92.97, 58.47], [-93.5, 58.25], [-94.03, 58.47], [-94.25, 59.0], [-94.15, 59.25], [-94.18, 59.32], [-94.53, 59.47], [-94.68, 59.82], [-95.03, 59.97], [-95.25, 60.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.826989654853492}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.972565918013627}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [2.5865207321014054, 3.33860960830674, 3.0679435876539856, 2.9618910300098378, 2.663981171207354, 2.340016007913732, 2.244687775277157, 1.9167942469614445, 2.2046152193923376, 1.9561694521760842]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.6506124982661845, 4.266046194424064, 4.024862600564859, 3.7184192812484866, 3.308538567108087, 2.954792896453739, 2.9270538632616763, 2.796534412347512, 3.2129119000512674, 2.4367299528643116]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.42950199676244, 4.16851117056301, 3.99326230959027, 3.9419059866604558, 3.321122582847361, 3.991760657138988, 4.277269702389309, 4.0910586619891935, 4.136860573111756, 3.4196510823321518]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.617589569460847, 6.826989654853492, 5.916621640053222, 5.704486063243451, 4.884133573364522, 5.863259479336136, 6.054511274207584, 5.785392112340901, 5.907162768714329, 4.0817831769573445]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1833506485475451, 1.4235924211244946, 1.3659233425740547, 1.3547400886069292, 1.2607836053072663, 1.2621504017363032, 1.2917026014058874, 1.2732620200801374, 1.4030014182958856, 1.2573051023184507]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2082435883216327, 1.7368164289386463, 1.5415526980050123, 1.5372265907824898, 1.3371619750160848, 1.3204258921613963, 1.3934003772056904, 1.369884317359214, 1.7269355033126343, 1.3670501419238534]}}