{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:37.856776", "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": "2012-Jun-05_to_2012-Jun-09_288.0_-42.0"}, "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": 2012060000279}, "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": "June 05 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2012"}, "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": 82164.2105833649}, "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.South-America", "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": ["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": -42.0}, "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": 288.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "288.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -42.0], [-69.53, -41.47], [-69.0, -41.25], [-68.47, -41.47], [-68.32, -41.82], [-67.97, -41.97], [-67.75, -42.5], [-67.97, -43.03], [-68.5, -43.25], [-69.03, -43.03], [-69.18, -42.68], [-69.53, -42.53], [-69.75, -42.0]]]]}, "2012-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.53, -42.47], [-73.18, -42.32], [-73.15, -42.25], [-73.25, -42.0], [-73.15, -41.75], [-73.25, -41.5], [-73.03, -40.97], [-72.68, -40.82], [-72.53, -40.47], [-72.0, -40.25], [-71.47, -40.47], [-71.32, -40.82], [-70.97, -40.97], [-70.82, -41.32], [-70.75, -41.35], [-70.5, -41.25], [-70.25, -41.35], [-70.18, -41.32], [-70.15, -41.25], [-70.25, -41.0], [-70.03, -40.47], [-69.5, -40.25], [-68.97, -40.47], [-68.82, -40.82], [-68.75, -40.85], [-68.5, -40.75], [-67.97, -40.97], [-67.75, -41.5], [-67.96, -42.0], [-67.75, -42.5], [-67.85, -42.75], [-67.75, -43.0], [-67.97, -43.53], [-68.5, -43.75], [-68.75, -43.65], [-69.0, -43.75], [-69.25, -43.65], [-69.32, -43.68], [-69.47, -44.03], [-70.0, -44.25], [-70.53, -44.03], [-70.68, -43.68], [-70.8, -43.62], [-70.97, -44.03], [-71.5, -44.25], [-71.75, -44.15], [-72.0, -44.25], [-72.25, -44.15], [-72.5, -44.25], [-72.75, -44.15], [-73.0, -44.25], [-73.53, -44.03], [-73.75, -43.5], [-73.65, -43.25], [-73.75, -43.0], [-73.53, -42.47]]]]}, "2012-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.53, -42.47], [-73.18, -42.32], [-73.15, -42.25], [-73.25, -42.0], [-73.15, -41.75], [-73.25, -41.5], [-73.03, -40.97], [-72.68, -40.82], [-72.53, -40.47], [-72.0, -40.25], [-71.47, -40.47], [-71.32, -40.82], [-70.97, -40.97], [-70.82, -41.32], [-70.75, -41.35], [-70.5, -41.25], [-70.25, -41.35], [-70.18, -41.32], [-70.15, -41.25], [-70.25, -41.0], [-70.03, -40.47], [-69.5, -40.25], [-68.97, -40.47], [-68.82, -40.82], [-68.75, -40.85], [-68.5, -40.75], [-67.97, -40.97], [-67.75, -41.5], [-67.96, -42.0], [-67.75, -42.5], [-67.85, -42.75], [-67.75, -43.0], [-67.97, -43.53], [-68.5, -43.75], [-68.75, -43.65], [-69.0, -43.75], [-69.25, -43.65], [-69.32, -43.68], [-69.47, -44.03], [-70.0, -44.25], [-70.53, -44.03], [-70.68, -43.68], [-70.8, -43.62], [-70.97, -44.03], [-71.5, -44.25], [-71.75, -44.15], [-72.0, -44.25], [-72.25, -44.15], [-72.5, -44.25], [-72.75, -44.15], [-73.0, -44.25], [-73.53, -44.03], [-73.75, -43.5], [-73.65, -43.25], [-73.75, -43.0], [-73.53, -42.47]]]]}, "2012-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.53, -42.47], [-73.18, -42.32], [-73.15, -42.25], [-73.25, -42.0], [-73.15, -41.75], [-73.25, -41.5], [-73.03, -40.97], [-72.68, -40.82], [-72.53, -40.47], [-72.0, -40.25], [-71.47, -40.47], [-71.32, -40.82], [-70.97, -40.97], [-70.82, -41.32], [-70.75, -41.35], [-70.5, -41.25], [-70.25, -41.35], [-70.18, -41.32], [-70.15, -41.25], [-70.25, -41.0], [-70.03, -40.47], [-69.5, -40.25], [-68.97, -40.47], [-68.82, -40.82], [-68.75, -40.85], [-68.5, -40.75], [-67.97, -40.97], [-67.75, -41.5], [-67.96, -42.0], [-67.75, -42.5], [-67.85, -42.75], [-67.75, -43.0], [-67.97, -43.53], [-68.5, -43.75], [-68.75, 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amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.237370060962405}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.291409443741793}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-2.8744165631486567, -3.0770397736565656, -2.401972669199779, -3.0479608397620837, -2.3072293056120543]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.7143388543764218, -8.422220557911999, -7.233669290948171, -7.27409846375059, -5.628788862580109]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.359574523046177, -5.77996802610068, -4.943928139802919, -5.451726548817971, -4.392756647294601]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.477587680570878, -10.237370060962405, -9.230565535557616, -8.829435834412834, -6.269760769991535]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4551642915310212, -2.1359936321963633, -1.831552463495308, -1.962602098336348, -1.7688401041837694]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4999164958350462, -3.217338105843336, -2.7089973675910133, -3.285014228403881, -2.6274086123558917]}}