{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:14.327771", "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": "2017-Jun-17_to_2017-Jun-20_288.0_-38.5"}, "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": 2017060000514}, "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 17 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 20 2017"}, "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": 94685.01205537477}, "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.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": -38.5}, "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": 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": 285.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -41.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.65, -37.75], [-74.75, -37.5], [-74.53, -36.97], 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-39.18], [-74.53, -39.03], [-74.75, -38.5], [-74.65, -38.25], [-74.75, -38.0], [-74.65, -37.75]]]]}, "2017-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.65, -37.75], [-74.75, -37.5], [-74.53, -36.97], [-74.18, -36.82], [-74.15, -36.75], [-74.25, -36.5], [-74.03, -35.97], [-73.68, -35.82], [-73.65, -35.75], [-73.75, -35.5], [-73.65, -35.25], [-73.75, -35.0], [-73.53, -34.47], [-73.0, -34.25], [-72.47, -34.47], [-72.25, -35.0], [-72.35, -35.25], [-72.25, -35.5], [-72.35, -35.75], [-72.32, -35.82], [-72.25, -35.85], [-72.0, -35.75], [-71.47, -35.97], [-71.25, -36.5], [-71.35, -36.75], [-71.32, -36.82], [-70.97, -36.97], [-70.75, -37.5], [-70.97, -38.03], [-71.32, -38.18], [-71.35, -38.25], [-71.25, -38.5], [-71.35, -38.75], [-71.25, -39.0], [-71.35, -39.25], [-71.25, -39.5], [-71.35, -39.75], [-71.25, -40.0], [-71.47, -40.53], [-71.82, -40.68], [-71.97, -41.03], [-72.32, -41.18], [-72.47, -41.53], [-73.0, -41.75], [-73.53, -41.53], [-73.75, -41.0], [-73.65, -40.75], [-73.75, -40.5], [-73.65, -40.25], [-73.68, -40.18], [-74.03, -40.03], [-74.25, -39.5], [-74.15, -39.25], [-74.18, -39.18], [-74.53, -39.03], [-74.75, -38.5], [-74.65, -38.25], [-74.75, -38.0], [-74.65, -37.75]]]]}, "2017-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.65, -37.75], [-74.75, -37.5], [-74.53, -36.97], [-74.18, -36.82], [-74.15, -36.75], [-74.25, -36.5], [-74.03, -35.97], [-73.68, -35.82], [-73.65, -35.75], [-73.75, -35.5], [-73.65, -35.25], [-73.75, -35.0], [-73.53, -34.47], [-73.0, -34.25], [-72.47, -34.47], [-72.25, -35.0], [-72.35, -35.25], [-72.25, -35.5], [-72.35, -35.75], [-72.32, -35.82], [-72.25, -35.85], [-72.0, -35.75], [-71.47, -35.97], [-71.25, -36.5], [-71.35, -36.75], [-71.32, -36.82], [-70.97, -36.97], [-70.75, -37.5], [-70.97, -38.03], [-71.32, -38.18], [-71.35, -38.25], [-71.25, -38.5], [-71.35, -38.75], [-71.25, -39.0], [-71.35, -39.25], [-71.25, -39.5], [-71.35, -39.75], [-71.25, -40.0], [-71.47, -40.53], [-71.82, 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-41.03], [-73.75, -40.5], [-73.65, -40.25], [-73.75, -40.0], [-73.65, -39.75], [-73.75, -39.5], [-73.65, -39.25], [-73.75, -39.0], [-73.65, -38.75], [-73.68, -38.68], [-74.03, -38.53], [-74.25, -38.0], [-74.15, -37.75], [-74.25, -37.5], [-74.03, -36.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.656121324196249}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.290924698359929}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.544550390206496, 3.337155990553754, 4.085869421096561, 2.843057522848653]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.4747601930327505, -3.6569453566228844, -2.713356762147612, -1.2877229524893892]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.22217676105363, -4.977678740322641, -4.224338857117643, -4.306710407557862]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.585882072302809, -7.437243122149653, -7.656121324196249, -5.763513504523644]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6714263394694822, -2.2880460145375716, -1.9654491090034611, -1.7472780895613749]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.113302753650901, -2.9386224064670943, -3.1446156857054093, -2.373323970163535]}}