{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:18.153268", "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": "2018-Feb-28_to_2018-Mar-02_269.0_67.5"}, "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": 2018020002512}, "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": "February 28 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 02 2018"}, "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": 87351.83557206983}, "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": 67.5}, "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": 269.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "269.0\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": 64.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.15, 65.75], [-96.25, 66.0], [-96.03, 66.53], [-95.68, 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64.32], [-94.5, 64.46], [-95.0, 64.25], [-95.25, 64.35], [-95.5, 64.25], [-96.03, 64.47], [-96.25, 65.0], [-96.15, 65.25], [-96.25, 65.5], [-96.15, 65.75]]]]}, "2018-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.15, 65.75], [-96.25, 66.0], [-96.03, 66.53], [-95.68, 66.68], [-95.53, 67.03], [-95.0, 67.25], [-94.75, 67.15], [-94.5, 67.25], [-94.25, 67.15], [-94.18, 67.18], [-94.03, 67.53], [-93.5, 67.75], [-93.25, 67.65], [-93.18, 67.68], [-93.03, 68.03], [-92.5, 68.25], [-92.25, 68.15], [-92.0, 68.25], [-91.75, 68.15], [-91.68, 68.18], [-91.53, 68.53], [-91.0, 68.75], [-90.75, 68.65], [-90.5, 68.75], [-90.25, 68.65], [-90.0, 68.75], [-89.75, 68.65], [-89.5, 68.75], [-89.25, 68.65], [-89.0, 68.75], [-88.75, 68.65], [-88.5, 68.75], [-87.97, 68.53], [-87.75, 68.0], [-87.97, 67.47], [-88.32, 67.32], [-88.47, 66.97], [-88.87, 66.8], [-88.75, 66.5], [-88.97, 65.97], [-89.5, 65.75], [-89.75, 65.85], [-89.87, 65.8], [-89.75, 65.5], [-89.85, 65.25], [-89.75, 65.0], [-89.85, 64.75], [-89.75, 64.5], [-89.97, 63.97], [-90.5, 63.75], [-90.75, 63.85], [-91.0, 63.75], [-91.25, 63.85], [-91.5, 63.75], [-91.75, 63.85], [-92.0, 63.75], [-92.25, 63.85], [-92.5, 63.75], [-92.75, 63.85], [-93.0, 63.75], [-93.25, 63.85], [-93.5, 63.75], [-94.03, 63.97], [-94.18, 64.32], [-94.5, 64.46], [-95.0, 64.25], [-95.25, 64.35], [-95.5, 64.25], [-96.03, 64.47], [-96.25, 65.0], [-96.15, 65.25], [-96.25, 65.5], [-96.15, 65.75]]]]}, "2018-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.15, 65.75], [-96.25, 66.0], [-96.03, 66.53], [-95.68, 66.68], [-95.53, 67.03], [-95.0, 67.25], [-94.75, 67.15], [-94.5, 67.25], [-94.25, 67.15], [-94.18, 67.18], [-94.03, 67.53], [-93.5, 67.75], [-93.25, 67.65], [-93.18, 67.68], [-93.03, 68.03], [-92.5, 68.25], [-92.25, 68.15], [-92.0, 68.25], [-91.75, 68.15], [-91.68, 68.18], [-91.53, 68.53], [-91.0, 68.75], [-90.75, 68.65], [-90.5, 68.75], [-90.25, 68.65], [-90.0, 68.75], [-89.75, 68.65], [-89.5, 68.75], [-89.25, 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12.63816445224184}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-21.126210263666792, -16.2717785382236, -20.20958035547531]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-17.4442470650678, -13.587605220945704, -19.108678242473815]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.103953032835786, 15.60413133892147, 11.206408984968252]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [14.04939738342074, 17.38866915287818, 12.53377525089357]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7607925253086214, 2.3891124422322463, 1.6248751230578735]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.102440579000129, 2.519528191484736, 1.8931499064205328]}}