{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:07.155500", "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-Jul-04_to_2010-Jul-07_288.0_-53.0"}, "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": 2010070000221}, "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": "July 04 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 07 2010"}, "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": 59087.52050441494}, "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"]}, "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": -53.0}, "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": 285.75}, "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": -55.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.65, -53.25], [-74.75, -53.0], [-74.65, -52.75], 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-53.5], [-74.65, -53.25]]]]}, "2010-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.65, -53.25], [-74.75, -53.0], [-74.65, -52.75], [-74.75, -52.5], [-74.65, -52.25], [-74.75, -52.0], [-74.53, -51.47], [-74.0, -51.25], [-73.47, -51.47], [-73.3, -51.88], [-73.18, -51.82], [-73.15, -51.75], [-73.25, -51.5], [-73.03, -50.97], [-72.5, -50.75], [-72.25, -50.85], [-72.0, -50.75], [-71.47, -50.97], [-71.25, -51.5], [-71.35, -51.75], [-71.32, -51.82], [-70.97, -51.97], [-70.75, -52.5], [-70.85, -52.75], [-70.75, -53.0], [-70.97, -53.53], [-71.32, -53.68], [-71.35, -53.75], [-71.25, -54.0], [-71.35, -54.25], [-71.32, -54.32], [-71.25, -54.35], [-71.0, -54.25], [-70.75, -54.35], [-70.5, -54.25], [-69.97, -54.47], [-69.75, -55.0], [-69.97, -55.53], [-70.5, -55.75], [-70.75, -55.65], [-71.0, -55.75], [-71.25, -55.65], [-71.5, -55.75], [-72.03, -55.53], [-72.18, -55.18], [-72.25, -55.15], [-72.5, -55.25], [-72.75, -55.15], [-73.0, -55.25], [-73.25, -55.15], [-73.5, 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{"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.359433446054078}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.2704151796427254, -5.391701644045952, -2.682735215717628, -6.612787675804384]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.896504209545526, -15.372425717901308, -10.073262020852269, -8.700729363294897]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.8124485868457896, -7.176141335820633, -4.510375696023901, -6.001918196774345]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.5495789858966305, -14.146608820602808, -8.31927671294261, -7.451635154102917]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6405672971173277, -2.622351209199961, -1.6678943930353478, -1.7108431250935137]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2229314188869074, -3.4521231862381856, -2.25775471900089, -2.023936544340342]}}