{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:28:57.779456", "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": "2022-Jan-28_to_2022-Jan-30_301.5_-5.5"}, "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": 2022010001028}, "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": "January 28 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 2022"}, "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": 156804.0265674956}, "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": -5.5}, "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": 301.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 303.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -6.0], [-61.53, -5.47], [-61.0, -5.25], [-60.75, -5.35], [-60.68, -5.32], [-60.53, -4.97], [-60.18, -4.82], [-60.15, -4.75], [-60.25, -4.5], [-60.03, -3.97], [-59.5, -3.75], [-59.2, -3.88], [-59.03, -3.47], [-58.68, -3.32], [-58.53, -2.97], [-58.0, -2.75], [-57.75, -2.85], [-57.5, -2.75], [-56.97, -2.97], [-56.75, -3.5], [-56.85, -3.75], [-56.75, -4.0], [-56.87, -4.3], [-56.75, -4.35], [-56.5, -4.25], [-55.97, -4.47], [-55.75, -5.0], [-55.85, -5.25], [-55.75, -5.5], [-55.97, -6.03], [-56.32, -6.18], [-56.35, -6.25], [-56.32, -6.32], [-55.97, -6.47], [-55.75, -7.0], [-55.85, -7.25], [-55.75, -7.5], [-55.97, -8.03], [-56.5, -8.25], [-56.75, -8.15], [-56.82, -8.18], [-56.97, -8.53], [-57.5, -8.75], [-58.03, -8.53], [-58.25, -8.0], [-58.15, -7.75], [-58.18, -7.68], [-58.53, -7.53], [-58.68, -7.18], [-58.75, -7.15], [-58.82, -7.18], [-58.97, -7.53], [-59.5, -7.75], [-59.75, -7.65], [-60.0, -7.75], [-60.25, -7.65], [-60.5, -7.75], [-61.03, -7.53], [-61.25, -7.0], [-61.15, -6.75], [-61.18, -6.68], [-61.53, -6.53], [-61.75, -6.0]]]]}, "2022-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -6.0], [-61.53, -5.47], [-61.0, -5.25], [-60.75, -5.35], [-60.68, -5.32], [-60.53, -4.97], [-60.18, -4.82], [-60.15, -4.75], [-60.25, -4.5], [-60.03, -3.97], [-59.5, -3.75], [-59.2, -3.88], [-59.03, -3.47], [-58.68, -3.32], [-58.53, -2.97], [-58.0, -2.75], [-57.75, -2.85], [-57.5, -2.75], [-56.97, -2.97], [-56.75, -3.5], [-56.85, -3.75], [-56.75, -4.0], [-56.87, -4.3], [-56.75, -4.35], [-56.5, -4.25], [-55.97, -4.47], [-55.75, -5.0], [-55.85, -5.25], [-55.75, -5.5], [-55.97, -6.03], [-56.32, -6.18], [-56.35, -6.25], [-56.32, -6.32], [-55.97, -6.47], [-55.75, -7.0], [-55.85, -7.25], [-55.75, -7.5], [-55.97, -8.03], [-56.5, -8.25], [-56.75, -8.15], [-56.82, -8.18], [-56.97, -8.53], [-57.5, -8.75], [-58.03, -8.53], [-58.25, -8.0], [-58.15, -7.75], [-58.18, -7.68], [-58.53, -7.53], [-58.68, -7.18], [-58.75, -7.15], [-58.82, -7.18], [-58.97, -7.53], [-59.5, -7.75], [-59.75, -7.65], [-60.0, -7.75], [-60.25, -7.65], [-60.5, -7.75], [-61.03, -7.53], [-61.25, -7.0], [-61.15, -6.75], [-61.18, -6.68], [-61.53, -6.53], [-61.75, -6.0]]]]}, "2022-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -6.0], [-61.53, -5.47], [-61.0, -5.25], [-60.75, -5.35], [-60.68, -5.32], [-60.53, -4.97], [-60.18, -4.82], [-60.15, -4.75], [-60.25, -4.5], [-60.03, -3.97], [-59.5, -3.75], [-59.2, -3.88], [-59.03, -3.47], [-58.68, -3.32], [-58.53, -2.97], [-58.0, -2.75], [-57.75, -2.85], [-57.5, -2.75], [-56.97, -2.97], [-56.75, -3.5], [-56.85, -3.75], [-56.75, -4.0], [-56.87, -4.3], [-56.75, -4.35], [-56.5, -4.25], [-55.97, -4.47], [-55.75, -5.0], [-55.85, -5.25], [-55.75, -5.5], [-55.97, -6.03], [-56.32, -6.18], [-56.35, -6.25], [-56.32, -6.32], [-55.97, -6.47], [-55.75, -7.0], [-55.85, -7.25], [-55.75, -7.5], [-55.97, -8.03], [-56.5, -8.25], [-56.75, -8.15], [-56.82, -8.18], [-56.97, -8.53], [-57.5, -8.75], [-58.03, -8.53], [-58.25, -8.0], [-58.15, -7.75], [-58.18, -7.68], [-58.53, 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t2m anomalies.", "value": [-1.3986910954683043, -1.7789262460714914, -1.5198186269294849]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8983727212175836, -2.4989823161994877, -1.9687374573967986]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5085791587439923, -1.8918675853942826, -1.6275601453186705]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0209720997757117, -2.6715614428130676, -2.0802845177922284]}}