{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:54.167325", "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": "2010-Oct-28_to_2010-Oct-30_289.0_-35.5"}, "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": 2010100001127}, "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 28 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 30 2010"}, "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": 87568.6987838404}, "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": ["Argentina", "Chile"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.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": -35.5}, "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": 289.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 287.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.15, -36.75], [-73.25, -36.5], [-73.15, -36.25], [-73.25, -36.0], [-73.03, -35.47], [-72.68, -35.32], [-72.65, -35.25], [-72.75, -35.0], [-72.53, -34.47], [-72.18, -34.32], [-72.03, -33.97], [-71.5, -33.75], [-71.25, -33.85], [-71.18, -33.82], [-71.15, -33.75], [-71.25, -33.5], [-71.15, -33.25], [-71.25, -33.0], [-71.03, -32.47], [-70.5, -32.25], [-69.97, -32.47], [-69.75, -33.0], [-69.85, -33.25], [-69.75, -33.5], [-69.85, -33.75], [-69.75, -34.0], [-69.85, -34.25], [-69.82, -34.32], [-69.47, -34.47], [-69.25, -35.0], [-69.47, -35.53], [-69.82, -35.68], [-69.96, -36.0], [-69.75, -36.5], [-69.85, -36.75], [-69.75, -37.0], [-69.85, -37.25], [-69.75, -37.5], [-69.97, -38.03], [-70.5, -38.25], [-70.75, -38.15], [-71.0, -38.25], [-71.25, -38.15], [-71.32, -38.18], [-71.47, -38.53], [-72.0, -38.75], [-72.53, -38.53], [-72.68, -38.18], [-73.03, -38.03], [-73.25, -37.5], [-73.15, -37.25], [-73.25, -37.0], [-73.15, -36.75]]]]}, "2010-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.15, -36.75], [-73.25, -36.5], [-73.15, -36.25], [-73.25, -36.0], [-73.03, -35.47], [-72.68, -35.32], [-72.65, -35.25], [-72.75, -35.0], [-72.53, -34.47], [-72.18, -34.32], [-72.03, -33.97], [-71.5, -33.75], [-71.25, -33.85], [-71.18, -33.82], [-71.15, -33.75], [-71.25, -33.5], [-71.15, -33.25], [-71.25, -33.0], [-71.03, -32.47], [-70.5, -32.25], [-69.97, -32.47], [-69.75, -33.0], [-69.85, -33.25], [-69.75, -33.5], [-69.85, -33.75], [-69.75, -34.0], [-69.85, -34.25], [-69.82, -34.32], [-69.47, -34.47], [-69.25, -35.0], [-69.47, -35.53], [-69.82, -35.68], [-69.96, -36.0], [-69.75, -36.5], [-69.85, -36.75], [-69.75, -37.0], [-69.85, -37.25], [-69.75, -37.5], [-69.97, -38.03], [-70.5, -38.25], [-70.75, -38.15], [-71.0, -38.25], [-71.25, -38.15], [-71.32, -38.18], [-71.47, -38.53], [-72.0, -38.75], [-72.53, -38.53], [-72.68, -38.18], [-73.03, -38.03], [-73.25, -37.5], [-73.15, -37.25], [-73.25, -37.0], [-73.15, -36.75]]]]}, "2010-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.15, -36.75], [-73.25, -36.5], [-73.15, -36.25], [-73.25, -36.0], [-73.03, -35.47], [-72.68, -35.32], [-72.65, -35.25], [-72.75, -35.0], [-72.53, -34.47], [-72.18, -34.32], [-72.03, -33.97], [-71.5, -33.75], [-71.25, -33.85], [-71.18, -33.82], [-71.15, -33.75], [-71.25, -33.5], [-71.15, -33.25], [-71.25, -33.0], [-71.03, -32.47], [-70.5, -32.25], [-69.97, -32.47], [-69.75, -33.0], [-69.85, -33.25], [-69.75, -33.5], [-69.85, -33.75], [-69.75, -34.0], [-69.85, -34.25], [-69.82, -34.32], [-69.47, -34.47], [-69.25, -35.0], [-69.47, -35.53], [-69.82, -35.68], [-69.96, -36.0], [-69.75, -36.5], [-69.85, -36.75], [-69.75, -37.0], [-69.85, -37.25], [-69.75, -37.5], [-69.97, -38.03], [-70.5, -38.25], [-70.75, -38.15], [-71.0, -38.25], [-71.25, -38.15], [-71.32, -38.18], [-71.47, -38.53], [-72.0, -38.75], [-72.53, -38.53], [-72.68, -38.18], [-73.03, -38.03], [-73.25, -37.5], [-73.15, -37.25], [-73.25, -37.0], [-73.15, -36.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.642641081727845}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.9964317292200535}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.219103444129246, 2.8439324828245276, 5.364139726541282]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-4.591003852497067, -9.505726734553775, -5.8309678396034315]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.5057649891347133, -6.960744792018995, -4.522785406506453]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.637952320003251, -10.642641081727845, -7.761539308805709]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5741924562423721, -3.060665929354219, -1.9051172390607352]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0802678160217862, -4.4952437112853465, -3.1959180033141474]}}