{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:40.243652", "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": "2019-Oct-21_to_2019-Oct-23_305.0_-2.0"}, "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": 2019100000709}, "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": "October 21 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 23 2019"}, "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": "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": 179134.15052736618}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": -2.0}, "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": 305.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.15, 0.75], [-59.25, 1.0], [-59.03, 1.53], [-58.5, 1.75], [-58.0, 1.54], [-57.5, 1.75], [-57.25, 1.65], [-57.0, 1.75], [-56.75, 1.65], [-56.5, 1.75], [-55.97, 1.53], [-55.82, 1.18], [-55.47, 1.03], [-55.32, 0.68], [-54.97, 0.53], [-54.82, 0.18], [-54.47, 0.03], [-54.25, -0.5], [-54.35, -0.75], [-54.32, -0.82], [-53.97, -0.97], [-53.75, -1.5], [-53.96, -2.0], [-53.75, -2.5], [-53.85, -2.75], [-53.82, -2.82], [-53.47, -2.97], [-53.25, -3.5], [-53.47, -4.03], [-53.82, -4.18], [-53.97, -4.53], [-54.32, -4.68], [-54.35, -4.75], [-54.25, -5.0], [-54.47, -5.53], [-55.0, -5.75], [-55.53, -5.53], [-55.68, -5.18], [-55.75, -5.15], [-56.0, -5.25], [-56.53, -5.03], [-56.68, -4.68], [-57.03, -4.53], [-57.25, -4.0], [-57.03, -3.47], [-56.68, -3.32], [-56.54, -3.0], [-56.75, -2.5], [-56.65, -2.25], [-56.68, -2.18], [-57.03, -2.03], [-57.18, -1.68], [-57.25, -1.65], [-57.5, -1.75], [-58.03, -1.53], [-58.25, -1.0], [-58.15, -0.75], [-58.18, -0.68], [-58.25, -0.65], [-58.5, -0.75], [-59.03, -0.53], [-59.25, 0.0], [-59.15, 0.25], [-59.25, 0.5], [-59.15, 0.75]]]]}, "2019-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.15, 0.75], [-59.25, 1.0], [-59.03, 1.53], [-58.5, 1.75], [-58.0, 1.54], [-57.5, 1.75], [-57.25, 1.65], [-57.0, 1.75], [-56.75, 1.65], [-56.5, 1.75], [-55.97, 1.53], [-55.82, 1.18], [-55.47, 1.03], [-55.32, 0.68], [-54.97, 0.53], [-54.82, 0.18], [-54.47, 0.03], [-54.25, -0.5], [-54.35, -0.75], [-54.32, -0.82], [-53.97, -0.97], [-53.75, -1.5], [-53.96, -2.0], [-53.75, -2.5], [-53.85, -2.75], [-53.82, -2.82], [-53.47, -2.97], [-53.25, -3.5], [-53.47, -4.03], [-53.82, -4.18], [-53.97, -4.53], [-54.32, -4.68], [-54.35, -4.75], [-54.25, -5.0], [-54.47, -5.53], [-55.0, -5.75], [-55.53, -5.53], [-55.68, -5.18], [-55.75, -5.15], [-56.0, -5.25], [-56.53, -5.03], [-56.68, -4.68], [-57.03, -4.53], [-57.25, -4.0], [-57.03, -3.47], [-56.68, -3.32], [-56.54, -3.0], [-56.75, -2.5], [-56.65, -2.25], [-56.68, -2.18], [-57.03, -2.03], [-57.18, -1.68], [-57.25, -1.65], [-57.5, -1.75], [-58.03, -1.53], [-58.25, 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"description": "The daily evolution of mean t2m anomalies.", "value": [-2.2161110267387634, -2.2712194867180227, -2.2158370344357867]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.037653981950598, -3.0415305026595547, -2.9966290742123647]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.67433783676619, -1.7637725937346576, -1.6735155751498763]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.199142364167765, -2.4041707795236364, -2.451683411863147]}}