{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:32.895362", "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-Sep-28_to_2012-Oct-01_262.5_47.0"}, "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": 2012090002770}, "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 28 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2012"}, "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": 65126.357815705975}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.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": 47.0}, "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": 262.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "262.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 260.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 265.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.25, 47.0], [-100.03, 47.53], [-99.5, 47.75], [-99.25, 47.65], [-99.18, 47.68], [-99.03, 48.03], [-98.5, 48.25], [-98.25, 48.15], [-98.0, 48.25], [-97.47, 48.03], [-97.32, 47.68], [-96.97, 47.53], [-96.75, 47.0], [-96.97, 46.47], [-97.32, 46.32], [-97.47, 45.97], [-98.0, 45.75], [-98.25, 45.85], [-98.5, 45.75], [-98.75, 45.85], [-99.0, 45.75], [-99.53, 45.97], [-99.68, 46.32], [-100.03, 46.47], [-100.25, 47.0]]]]}, "2012-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.25, 47.0], [-100.03, 47.53], [-99.5, 47.75], [-99.25, 47.65], [-99.18, 47.68], [-99.03, 48.03], [-98.5, 48.25], [-98.25, 48.15], [-98.12, 48.2], [-98.25, 48.5], [-98.03, 49.03], [-97.5, 49.25], [-97.25, 49.15], [-97.18, 49.18], [-97.15, 49.25], [-97.25, 49.5], [-97.03, 50.03], [-96.5, 50.25], [-95.97, 50.03], [-95.75, 49.5], [-95.85, 49.25], [-95.75, 49.0], [-95.85, 48.75], [-95.75, 48.5], [-95.85, 48.25], [-95.75, 48.0], [-95.85, 47.75], [-95.82, 47.68], [-95.47, 47.53], [-95.32, 47.18], [-95.25, 47.15], [-95.0, 47.25], [-94.47, 47.03], [-94.25, 46.5], [-94.47, 45.97], [-95.0, 45.75], [-95.25, 45.85], [-95.32, 45.82], [-95.47, 45.47], [-96.0, 45.25], [-96.25, 45.35], [-96.5, 45.25], [-96.75, 45.35], [-97.0, 45.25], [-97.53, 45.47], [-97.68, 45.82], [-97.75, 45.85], [-98.0, 45.75], [-98.25, 45.85], [-98.5, 45.75], [-98.75, 45.85], [-99.0, 45.75], [-99.53, 45.97], [-99.68, 46.32], [-100.03, 46.47], [-100.25, 47.0]]]]}, "2012-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.25, 47.0], [-100.03, 47.53], [-99.5, 47.75], [-99.25, 47.65], [-99.18, 47.68], [-99.03, 48.03], [-98.5, 48.25], [-98.25, 48.15], [-98.12, 48.2], [-98.25, 48.5], [-98.03, 49.03], [-97.5, 49.25], [-97.25, 49.15], [-97.18, 49.18], [-97.15, 49.25], [-97.25, 49.5], [-97.03, 50.03], [-96.5, 50.25], [-95.97, 50.03], [-95.75, 49.5], [-95.85, 49.25], [-95.75, 49.0], [-95.85, 48.75], [-95.75, 48.5], [-95.85, 48.25], [-95.75, 48.0], [-95.85, 47.75], [-95.82, 47.68], [-95.47, 47.53], [-95.32, 47.18], [-95.25, 47.15], [-95.0, 47.25], [-94.47, 47.03], [-94.25, 46.5], [-94.47, 45.97], [-95.0, 45.75], [-95.25, 45.85], [-95.32, 45.82], [-95.47, 45.47], [-96.0, 45.25], [-96.25, 45.35], [-96.5, 45.25], [-96.75, 45.35], [-97.0, 45.25], [-97.53, 45.47], [-97.68, 45.82], [-97.75, 45.85], [-98.0, 45.75], [-98.25, 45.85], [-98.5, 45.75], [-98.75, 45.85], [-99.0, 45.75], [-99.53, 45.97], [-99.68, 46.32], [-100.03, 46.47], [-100.25, 47.0]]]]}, "2012-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.03, 47.53], [-97.68, 47.68], [-97.65, 47.75], [-97.68, 47.82], [-98.03, 47.97], [-98.25, 48.5], [-98.03, 49.03], [-97.5, 49.25], [-97.25, 49.15], [-97.18, 49.18], [-97.15, 49.25], [-97.25, 49.5], [-97.03, 50.03], [-96.5, 50.25], [-95.97, 50.03], [-95.75, 49.5], [-95.85, 49.25], [-95.75, 49.0], [-95.85, 48.75], [-95.75, 48.5], [-95.85, 48.25], [-95.75, 48.0], [-95.85, 47.75], [-95.82, 47.68], [-95.47, 47.53], [-95.32, 47.18], [-95.25, 47.15], [-95.0, 47.25], [-94.47, 47.03], [-94.25, 46.5], [-94.47, 45.97], [-95.0, 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"description": "The daily evolution of mean t2m anomalies.", "value": [6.0630723856933, 6.532104440214997, 7.999408671950934, 6.383783339903749]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.607547374371109, 7.667816538105001, 10.01514327208281, 6.800335676972054]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4768432266149019, 1.564306565398526, 1.923547765811604, 1.4862501908738848]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6120700215471886, 1.8345651528401623, 2.355306956156601, 1.6232601377487357]}}