{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:51.903734", "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-Jan-13_to_2010-Jan-15_300.0_-24.5"}, "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": 2010010000471}, "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": "January 13 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 15 2010"}, "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": 83327.72765310305}, "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": -24.5}, "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": 300.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.75, -25.5], [-62.53, -24.97], [-62.0, -24.75], [-61.75, -24.85], [-61.68, -24.82], [-61.53, -24.47], [-61.0, -24.25], [-60.75, -24.35], [-60.68, -24.32], [-60.53, -23.97], [-60.0, -23.75], [-59.47, -23.97], [-59.32, -24.32], [-58.97, -24.47], [-58.82, -24.82], [-58.75, -24.85], [-58.5, -24.75], [-57.97, -24.97], [-57.75, -25.5], [-57.97, -26.03], [-58.37, -26.2], [-58.25, -26.5], [-58.35, -26.75], [-58.25, -27.0], [-58.47, -27.53], [-59.0, -27.75], [-59.25, -27.65], [-59.32, -27.68], [-59.47, -28.03], [-60.0, -28.25], [-60.25, -28.15], [-60.5, -28.25], [-61.03, -28.03], [-61.25, -27.5], [-61.15, -27.25], [-61.18, -27.18], [-61.25, -27.15], [-61.5, -27.25], [-62.03, -27.03], [-62.25, -26.5], [-62.15, -26.25], [-62.18, -26.18], [-62.53, -26.03], [-62.75, -25.5]]]]}, "2010-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.75, -25.5], [-62.53, -24.97], [-62.0, -24.75], [-61.75, -24.85], [-61.68, -24.82], [-61.53, -24.47], [-61.0, -24.25], [-60.75, -24.35], [-60.68, -24.32], [-60.53, -23.97], [-60.0, -23.75], [-59.47, -23.97], [-59.32, -24.32], [-58.97, -24.47], [-58.82, -24.82], [-58.75, -24.85], [-58.5, -24.75], [-57.97, -24.97], [-57.75, -25.5], [-57.97, -26.03], [-58.37, -26.2], [-58.25, -26.5], [-58.35, -26.75], [-58.25, -27.0], [-58.47, -27.53], [-59.0, -27.75], [-59.25, -27.65], [-59.32, -27.68], [-59.47, -28.03], [-60.0, -28.25], [-60.25, -28.15], [-60.5, -28.25], [-61.03, -28.03], [-61.25, -27.5], [-61.15, -27.25], [-61.18, -27.18], [-61.25, -27.15], [-61.5, -27.25], [-62.03, -27.03], [-62.25, -26.5], [-62.15, -26.25], [-62.18, -26.18], [-62.53, -26.03], [-62.75, -25.5]]]]}, "2010-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.75, -25.5], [-62.53, -24.97], [-62.0, -24.75], [-61.75, -24.85], [-61.68, -24.82], [-61.53, -24.47], [-61.0, -24.25], [-60.75, -24.35], [-60.68, -24.32], [-60.53, -23.97], [-60.0, -23.75], [-59.47, -23.97], [-59.32, -24.32], [-58.97, -24.47], [-58.82, -24.82], [-58.75, -24.85], [-58.5, -24.75], [-57.97, -24.97], [-57.75, -25.5], [-57.97, -26.03], [-58.37, -26.2], [-58.25, -26.5], [-58.35, -26.75], [-58.25, -27.0], [-58.47, -27.53], [-59.0, -27.75], [-59.25, -27.65], [-59.32, -27.68], [-59.47, -28.03], [-60.0, -28.25], [-60.25, -28.15], [-60.5, -28.25], [-61.03, -28.03], [-61.25, -27.5], [-61.15, -27.25], [-61.18, -27.18], [-61.25, -27.15], [-61.5, -27.25], [-62.03, -27.03], [-62.25, -26.5], [-62.15, -26.25], [-62.18, -26.18], [-62.53, -26.03], [-62.75, -25.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.748513369073294}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.656202485192625}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.69791635009176, 23.202959993425452, 23.89147739030585]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.6300294112001, 22.318907149717518, 22.957786014464943]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.009309062734619, -4.376380383727163, -3.5829180091160935]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.748513369073294, -5.71606039409096, -4.455250001684647]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.291118003140342, -1.6923729330124673, -1.411447180226241]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.875099140096892, -2.088498616048853, -1.6835681287047823]}}