{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:45.941334", "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": "2016-Dec-08_to_2016-Dec-10_293.5_-29.0"}, "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": 2016120000311}, "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": "December 08 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 2016"}, "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": 121621.01214181763}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": -29.0}, "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": 293.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "293.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 297.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.15, -29.25], [-67.25, -29.0], [-67.03, -28.47], [-66.68, -28.32], [-66.53, -27.97], [-66.12, -27.8], [-66.25, -27.5], [-66.03, -26.97], [-65.68, -26.82], [-65.53, -26.47], [-65.0, -26.25], [-64.7, -26.38], [-64.53, -25.97], [-64.0, -25.75], [-63.47, -25.97], [-63.25, -26.5], [-63.35, -26.75], [-63.32, -26.82], [-62.97, -26.97], [-62.75, -27.5], [-62.85, -27.75], [-62.75, -28.0], [-62.85, -28.25], [-62.82, -28.32], [-62.47, -28.47], [-62.25, -29.0], [-62.35, -29.25], [-62.25, -29.5], [-62.47, -30.03], [-62.82, -30.18], [-62.97, -30.53], [-63.5, -30.75], [-63.8, -30.62], [-63.97, -31.03], [-64.32, -31.18], [-64.47, -31.53], [-65.0, -31.75], [-65.25, -31.65], [-65.5, -31.75], [-65.75, -31.65], [-66.0, -31.75], [-66.53, -31.53], [-66.75, -31.0], [-66.65, -30.75], [-66.68, -30.68], [-67.03, -30.53], [-67.25, -30.0], [-67.15, -29.75], [-67.25, -29.5], [-67.15, -29.25]]]]}, "2016-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.15, -29.25], [-67.25, -29.0], [-67.03, -28.47], [-66.68, -28.32], [-66.53, -27.97], [-66.12, -27.8], [-66.25, -27.5], [-66.03, -26.97], [-65.68, -26.82], [-65.53, -26.47], [-65.0, -26.25], [-64.7, -26.38], [-64.53, -25.97], [-64.0, -25.75], [-63.47, -25.97], [-63.25, -26.5], [-63.35, -26.75], [-63.32, -26.82], [-62.97, -26.97], [-62.75, -27.5], [-62.85, -27.75], [-62.75, -28.0], [-62.85, -28.25], [-62.82, -28.32], [-62.47, -28.47], [-62.25, -29.0], [-62.35, -29.25], [-62.25, -29.5], [-62.47, -30.03], [-62.82, -30.18], [-62.97, -30.53], [-63.5, -30.75], [-63.8, -30.62], [-63.97, -31.03], [-64.32, -31.18], [-64.47, -31.53], [-65.0, -31.75], [-65.25, -31.65], [-65.5, -31.75], [-65.75, -31.65], [-66.0, -31.75], [-66.53, -31.53], [-66.75, -31.0], [-66.65, -30.75], [-66.68, -30.68], [-67.03, -30.53], [-67.25, -30.0], [-67.15, -29.75], [-67.25, -29.5], [-67.15, -29.25]]]]}, "2016-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.15, -29.25], [-67.25, -29.0], [-67.03, -28.47], [-66.68, -28.32], [-66.53, -27.97], [-66.12, -27.8], [-66.25, -27.5], [-66.03, -26.97], [-65.68, -26.82], [-65.53, -26.47], [-65.0, -26.25], [-64.7, -26.38], [-64.53, -25.97], [-64.0, -25.75], [-63.47, -25.97], [-63.25, -26.5], [-63.35, -26.75], [-63.32, -26.82], [-62.97, -26.97], [-62.75, -27.5], [-62.85, -27.75], [-62.75, -28.0], [-62.85, -28.25], [-62.82, -28.32], [-62.47, -28.47], [-62.25, -29.0], [-62.35, -29.25], [-62.25, -29.5], [-62.47, -30.03], [-62.82, -30.18], [-62.97, -30.53], [-63.5, -30.75], [-63.8, -30.62], [-63.97, -31.03], [-64.32, -31.18], [-64.47, -31.53], [-65.0, -31.75], [-65.25, -31.65], [-65.5, -31.75], [-65.75, -31.65], [-66.0, -31.75], [-66.53, -31.53], [-66.75, -31.0], [-66.65, -30.75], [-66.68, -30.68], [-67.03, -30.53], [-67.25, -30.0], [-67.15, -29.75], [-67.25, -29.5], [-67.15, -29.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.43466434783278}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.596217919208426}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.27506245732252, 19.17374613882481, 21.209172851217318]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.04142518896225, 12.699915321020285, 15.487241015253062]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.702570133784608, -7.021031251917045, -5.065052371923622]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.6942728822419895, -8.43466434783278, -6.371667140296665]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4263676834928996, -2.135748947632383, -1.558336893531232]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6766070617618685, -2.5700683983041293, -1.849327547962799]}}