{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:39.231383", "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": "2017-Aug-07_to_2017-Aug-10_269.0_32.0"}, "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": 2017080000251}, "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 07 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 10 2017"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 128432.56899336005}, "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": ["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": 32.0}, "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": 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": 263.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.75, 31.0], [-96.53, 31.53], [-96.0, 31.75], [-95.75, 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31.53], [-96.0, 31.75], [-95.75, 31.65], [-95.68, 31.68], [-95.65, 31.75], [-95.75, 32.0], [-95.54, 32.5], [-95.75, 33.0], [-95.53, 33.53], [-95.18, 33.68], [-95.03, 34.03], [-94.5, 34.25], [-94.25, 34.15], [-94.0, 34.25], [-93.75, 34.15], [-93.5, 34.25], [-92.97, 34.03], [-92.82, 33.68], [-92.75, 33.65], [-92.5, 33.75], [-92.25, 33.65], [-92.0, 33.75], [-91.75, 33.65], [-91.5, 33.75], [-91.25, 33.65], [-91.0, 33.75], [-90.47, 33.53], [-90.32, 33.18], [-89.97, 33.03], [-89.75, 32.5], [-89.85, 32.25], [-89.75, 32.0], [-89.97, 31.47], [-90.32, 31.32], [-90.47, 30.97], [-91.0, 30.75], [-91.25, 30.85], [-91.5, 30.75], [-91.75, 30.85], [-92.0, 30.75], [-92.25, 30.85], [-92.5, 30.75], [-92.75, 30.85], [-92.82, 30.82], [-92.97, 30.47], [-93.32, 30.32], [-93.47, 29.97], [-94.0, 29.75], [-94.25, 29.85], [-94.32, 29.82], [-94.47, 29.47], [-95.0, 29.25], [-95.53, 29.47], [-95.68, 29.82], [-96.03, 29.97], [-96.18, 30.32], [-96.53, 30.47], [-96.75, 31.0]]]]}, "2017-08-10T11:30:00.000000000": 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[25.774803960361282, 25.054433635614316, 25.79428543930368, 25.47664732000152]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.596178751511502, 24.16524050138065, 24.752394747717005, 25.07002758928212]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2209742077382897, -3.777427532349459, -2.9866327782218964, -2.876320800314076]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.164711367233622, -4.668750709827236, -3.9679206963800198, -3.3960737783272066]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5864552691798919, -1.9756662993958267, -1.5070321801713502, -1.476269302609252]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1182689835315798, -2.4093141727865217, -1.8341730002639043, -1.7019057950392955]}}