{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:10.614329", "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-Aug-22_to_2012-Aug-26_285.0_-41.5"}, "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": 2012080001028}, "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": "August 22 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 26 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": 176567.02948863542}, "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": -41.5}, "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": 285.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 283.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 289.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.0, -40.75], [-75.75, -40.85], [-75.5, -40.75], [-75.25, -40.85], [-75.0, -40.75], [-74.47, -40.97], [-74.25, -41.5], [-74.47, -42.03], [-74.82, -42.18], [-74.97, -42.53], [-75.5, -42.75], [-75.75, -42.65], [-76.0, -42.75], [-76.25, -42.65], [-76.5, -42.75], [-77.03, -42.53], [-77.25, -42.0], [-77.03, -41.47], [-76.68, -41.32], [-76.53, -40.97], [-76.0, -40.75]]]]}, "2012-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.03, -41.47], [-76.68, -41.32], [-76.53, -40.97], [-76.0, -40.75], [-75.75, -40.85], [-75.68, -40.82], [-75.53, -40.47], [-75.0, -40.25], [-74.5, -40.46], [-74.12, -40.3], [-74.25, -40.0], [-74.03, -39.47], [-73.5, -39.25], [-72.97, -39.47], [-72.82, -39.82], [-72.47, -39.97], [-72.25, -40.5], [-72.35, -40.75], [-72.25, -41.0], [-72.35, -41.25], [-72.25, -41.5], [-72.43, -41.93], [-72.18, -41.82], [-72.03, -41.47], [-71.5, -41.25], [-70.97, -41.47], [-70.82, -41.82], [-70.47, -41.97], [-70.25, -42.5], [-70.37, -42.8], [-69.97, -42.97], [-69.75, -43.5], [-69.97, -44.03], [-70.5, -44.25], [-70.75, 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"value": [8.045082195946804, 5.611726301340582, 3.260033583546715, 3.062809303664096, -0.936028536033632]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.867925788672608, -2.7919903908654646, -3.391029863775259, -4.725500612715393, -3.2901750075230325]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6272562186948771, -2.3020203679167004, -2.862007134494422, -3.04018325388281, -3.150707836585468]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6969790438770929, -4.812797871613611, -4.776140550224568, -5.486095690558784, -4.2079642814442195]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.436137242267112, -1.5591725380006383, -1.7328913876583647, -1.8051466252069441, -1.5678351087716949]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4940445165249454, -1.8915603230088618, -2.4020197360461184, -2.4392158989448958, -2.029839596700327]}}