{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:46.692973", "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": "2016-Dec-14_to_2016-Dec-17_308.5_-26.5"}, "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": 2016120000461}, "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": "December 14 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 17 2016"}, "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": 93373.64324781312}, "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": ["S.E.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": -26.5}, "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": 308.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 311.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, -27.18], [-53.53, -27.03], [-53.75, -26.5], 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-26.35], [-49.5, -26.25], [-49.25, -26.35], [-49.0, -26.25], [-48.47, -26.47], [-48.25, -27.0], [-48.35, -27.25], [-48.25, -27.5], [-48.47, -28.03], [-49.0, -28.25], [-49.25, -28.15], [-49.32, -28.18], [-49.47, -28.53], [-49.82, -28.68], [-49.97, -29.03], [-50.32, -29.18], [-50.47, -29.53], [-51.0, -29.75], [-51.53, -29.53], [-51.68, -29.18], [-51.75, -29.15], [-52.0, -29.25], [-52.53, -29.03], [-52.68, -28.68], [-52.75, -28.65], [-53.0, -28.75], [-53.53, -28.53], [-53.75, -28.0], [-53.53, -27.47], [-53.18, -27.32], [-53.15, -27.25], [-53.18, -27.18]]]]}, "2016-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, -27.18], [-53.53, -27.03], [-53.75, -26.5], [-53.53, -25.97], [-53.0, -25.75], [-52.75, -25.85], [-52.5, -25.75], [-52.25, -25.85], [-52.18, -25.82], [-52.15, -25.75], [-52.25, -25.5], [-52.03, -24.97], [-51.5, -24.75], [-50.97, -24.97], [-50.82, -25.32], [-50.47, -25.47], [-50.32, -25.82], [-49.97, -25.97], [-49.82, -26.32], [-49.75, -26.35], [-49.5, -26.25], [-49.25, -26.35], [-49.0, -26.25], [-48.47, -26.47], [-48.25, -27.0], [-48.35, -27.25], [-48.25, -27.5], [-48.47, -28.03], [-49.0, -28.25], [-49.25, -28.15], [-49.32, -28.18], [-49.47, -28.53], [-49.82, -28.68], [-49.97, -29.03], [-50.32, -29.18], [-50.47, -29.53], [-51.0, -29.75], [-51.53, -29.53], [-51.68, -29.18], [-51.75, -29.15], [-52.0, -29.25], [-52.53, -29.03], [-52.68, -28.68], [-52.75, -28.65], [-53.0, -28.75], [-53.53, -28.53], [-53.75, -28.0], [-53.53, -27.47], [-53.18, -27.32], [-53.15, -27.25], [-53.18, -27.18]]]]}, "2016-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -26.5], [-52.53, -25.97], [-52.18, -25.82], [-52.15, -25.75], [-52.25, -25.5], [-52.03, -24.97], [-51.5, -24.75], [-50.97, -24.97], [-50.82, -25.32], [-50.47, -25.47], [-50.32, -25.82], [-49.97, -25.97], [-49.82, -26.32], [-49.75, -26.35], [-49.5, -26.25], [-49.25, -26.35], [-49.0, -26.25], [-48.47, -26.47], [-48.25, -27.0], [-48.35, -27.25], [-48.25, -27.5], [-48.47, 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"anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0149378630371424, -4.057674347753682, -4.408534868570571, -2.8196643818994755]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.4633426493480215, -4.831609176628149, -6.067072746146096, -3.318219791344063]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.373927566540943, -1.888975896895845, -2.1829734884518026, -1.4764844349867465]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.538232223467522, -2.186152529077396, -2.8744567837991952, -1.781696627300256]}}