{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:29.676432", "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": "2024-Dec-25_to_2024-Dec-29_287.0_-36.0"}, "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": 2024120000604}, "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 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 50388.1308900095}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["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": -36.0}, "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": 287.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 285.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -36.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -34.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-72.25, -36.5], [-72.47, -37.03], [-73.0, -37.25], [-73.25, -37.15], [-73.5, -37.25], [-73.75, -37.15], [-74.0, -37.25], [-74.53, -37.03], [-74.68, -36.68], [-75.03, -36.53], [-75.25, -36.0], [-75.15, -35.75], [-75.25, -35.5], [-75.03, -34.97], [-74.5, -34.75], [-74.25, -34.85], [-74.18, -34.82], [-74.15, -34.75], [-74.25, -34.5], [-74.03, -33.97], [-73.5, -33.75], [-72.97, -33.97], [-72.82, -34.32], [-72.75, -34.35], [-72.68, -34.32], [-72.65, -34.25], [-72.75, -34.0], [-72.53, -33.47], [-72.0, -33.25], [-71.75, -33.35], [-71.5, -33.25], [-70.97, -33.47], [-70.75, -34.0], [-70.97, -34.53], [-71.32, -34.68], [-71.35, -34.75], [-71.25, -35.0], [-71.47, -35.53], [-71.82, -35.68], [-71.97, -36.03], [-72.32, -36.18], [-72.35, -36.25], [-72.25, -36.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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daily evolution of mean t2m anomalies.", "value": [-1.6871315740208874, -2.1204707664771405, -1.840906847020682, -1.5801620970459807, -1.3112892547172805]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.1933903699804205, -3.9118888215105585, -2.983371296531857, -2.455496737940507, -1.346854271141865]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6874985360200008, -2.24450194903798, -2.0137619048243125, -1.764095564967066, -1.5887400890572643]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0111729869238038, -3.245576404137664, -2.968807912192001, -2.536937128271268, -1.6123002062429252]}}