{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:38.937200", "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": "2023-Oct-08_to_2023-Oct-10_290.5_-55.5"}, "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": 2023100000196}, "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 08 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 10 2023"}, "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": 54182.20427804513}, "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": ["Chile"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America", "Southern-Ocean"]}, "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": ["South Pacific Ocean"]}, "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": -55.5}, "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": 290.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 292.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -57.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -54.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.25, -55.0], [-74.03, -54.47], [-73.68, -54.32], 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"coordinates": [[[[-74.25, -55.0], [-74.03, -54.47], [-73.68, -54.32], [-73.53, -53.97], [-73.0, -53.75], [-72.75, -53.85], [-72.5, -53.75], [-72.25, -53.85], [-72.0, -53.75], [-71.75, -53.85], [-71.5, -53.75], [-70.97, -53.97], [-70.82, -54.32], [-70.75, -54.35], [-70.5, -54.25], [-69.97, -54.47], [-69.82, -54.82], [-69.75, -54.85], [-69.5, -54.75], [-69.25, -54.85], [-69.0, -54.75], [-68.75, -54.85], [-68.5, -54.75], [-67.97, -54.97], [-67.82, -55.32], [-67.47, -55.47], [-67.25, -56.0], [-67.47, -56.53], [-68.0, -56.75], [-68.25, -56.65], [-68.5, -56.75], [-68.75, -56.65], [-69.0, -56.75], [-69.3, -56.62], [-69.47, -57.03], [-69.82, -57.18], [-69.97, -57.53], [-70.5, -57.75], [-70.75, -57.65], [-71.0, -57.75], [-71.53, -57.53], [-71.75, -57.0], [-71.65, -56.75], [-71.68, -56.68], [-72.03, -56.53], [-72.18, -56.18], [-72.25, -56.15], [-72.5, -56.25], [-72.75, -56.15], [-73.0, -56.25], [-73.53, -56.03], [-73.68, -55.68], [-74.03, -55.53], [-74.25, -55.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.827760378790913}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2051473804981914}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [2.6833981176592374, 2.6325366513056565, 2.593893606433653]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.9018023592129225, 1.5395095974465107, 1.5933131766215638]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1373891612263285, -2.2093696599934654, -2.2686833202747807]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.637551168328116, -2.6258550340294846, -2.827760378790913]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5278798259246147, -1.5955329001164094, -1.67129022678525]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6975569648851387, -1.957957757047479, -1.957586256210103]}}