{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:17.674250", "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-Aug-20_to_2012-Aug-24_230.5_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": 2012080002549}, "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": "August 20 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 24 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 56041.09335769543}, "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.W.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": 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": 230.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "230.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 225.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 232.75}, "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": 63.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-129.5, 62.25], [-128.97, 62.03], [-128.82, 61.68], [-128.75, 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[-134.53, 60.47], [-134.75, 61.0], [-134.53, 61.53], [-134.18, 61.68], [-134.15, 61.75], [-134.25, 62.0]]]]}, "2012-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-134.25, 62.0], [-134.15, 62.25], [-134.25, 62.5], [-134.15, 62.75], [-134.25, 63.0], [-134.15, 63.25], [-134.25, 63.5], [-134.03, 64.03], [-133.5, 64.25], [-133.25, 64.15], [-133.0, 64.25], [-132.75, 64.15], [-132.5, 64.25], [-132.25, 64.15], [-132.0, 64.25], [-131.75, 64.15], [-131.5, 64.25], [-130.97, 64.03], [-130.82, 63.68], [-130.75, 63.65], [-130.5, 63.75], [-130.25, 63.65], [-130.0, 63.75], [-129.75, 63.65], [-129.5, 63.75], [-128.97, 63.53], [-128.75, 63.0], [-128.85, 62.75], [-128.75, 62.5], [-128.85, 62.25], [-128.82, 62.18], [-128.75, 62.15], [-128.5, 62.25], [-127.97, 62.03], [-127.82, 61.68], [-127.47, 61.53], [-127.32, 61.18], [-126.97, 61.03], [-126.75, 60.5], [-126.97, 59.97], [-127.5, 59.75], [-128.03, 59.97], [-128.18, 60.32], [-128.25, 60.35], [-128.5, 60.25], [-128.75, 60.35], 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"description": "Maximum t2m anomaly recorded over entire duration", "value": 4.640991757924041}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.5332670107880806}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.436029297433606, 12.513809415599098, 12.230018638984973, 11.793742209553272, 11.569190567051407]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.578446206169588, 14.617025991398293, 13.705161281973801, 13.509290973883992, 11.569190567051407]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.202476896074131, 3.6676069553927335, 3.5885320709521986, 3.4118026120089056, 2.793317902230399]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of 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