{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:07.255345", "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-Aug-02_to_2014-Aug-05_235.0_53.5"}, "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": 2014080001710}, "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 02 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2014"}, "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": 105212.04403373018}, "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": 53.5}, "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": 235.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "235.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 233.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 239.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 58.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-125.0, 55.25], [-124.75, 55.15], [-124.5, 55.25], [-123.97, 55.03], [-123.75, 54.5], [-123.97, 53.97], [-124.37, 53.8], [-124.25, 53.5], [-124.47, 52.97], [-125.0, 52.75], [-125.25, 52.85], [-125.5, 52.75], [-126.03, 52.97], [-126.25, 53.5], [-126.03, 54.03], [-125.62, 54.2], [-125.75, 54.5], [-125.53, 55.03], [-125.0, 55.25]]], [[[-123.03, 54.97], [-123.25, 55.5], [-123.03, 56.03], [-122.5, 56.25], [-121.97, 56.03], [-121.75, 55.5], [-121.97, 54.97], [-122.5, 54.75], [-123.03, 54.97]]]]}, "2014-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-126.0, 56.25], [-125.7, 56.13], [-125.54, 56.5], [-125.68, 56.82], [-125.75, 56.85], [-126.0, 56.75], [-126.53, 56.97], [-126.75, 57.5], [-126.53, 58.03], [-126.12, 58.2], [-126.25, 58.5], [-126.03, 59.03], [-125.5, 59.25], [-124.97, 59.03], [-124.82, 58.68], [-124.75, 58.65], [-124.5, 58.75], [-124.25, 58.65], [-124.0, 58.75], [-123.75, 58.65], [-123.5, 58.75], [-123.25, 58.65], [-123.0, 58.75], [-122.47, 58.53], [-122.25, 58.0], [-122.35, 57.75], [-122.32, 57.68], [-122.25, 57.65], [-122.0, 57.75], [-121.75, 57.65], [-121.5, 57.75], [-120.97, 57.53], [-120.75, 57.0], [-120.85, 56.75], [-120.75, 56.5], [-120.87, 56.2], [-120.47, 56.03], [-120.25, 55.5], [-120.47, 54.97], [-121.0, 54.75], [-121.25, 54.85], [-121.5, 54.75], [-121.75, 54.85], [-122.0, 54.75], [-122.25, 54.85], [-122.32, 54.82], [-122.47, 54.47], [-123.0, 54.25], [-123.25, 54.35], [-123.32, 54.32], [-123.47, 53.97], [-123.87, 53.8], [-123.75, 53.5], [-123.97, 52.97], [-124.5, 52.75], [-124.75, 52.85], [-125.0, 52.75], [-125.25, 52.85], [-125.5, 52.75], [-126.03, 52.97], [-126.25, 53.5], [-126.15, 53.75], [-126.25, 54.0], [-126.15, 54.25], [-126.18, 54.32], [-126.25, 54.35], [-126.5, 54.25], [-127.03, 54.47], [-127.25, 55.0], [-127.03, 55.53], [-126.68, 55.68], [-126.53, 56.03], [-126.0, 56.25]]]]}, "2014-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-126.0, 56.25], [-125.7, 56.13], [-125.54, 56.5], [-125.68, 56.82], [-125.75, 56.85], [-126.0, 56.75], [-126.53, 56.97], 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.277340528826755, 21.704883857324944, 21.753223179646227, 21.38033125026851]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.72882797149897, 4.556301347085458, 5.016098670397813, 4.499698642968364]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.914190934582166, 5.5944957717997, 6.425027961006549, 5.887625855455951]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5190859415038627, 1.5200293423426456, 1.7131148287427076, 1.5425262157801038]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6514008923731762, 1.7395255118343231, 2.1161575689600887, 1.9023466016235155]}}