{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:53.537080", "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-28_to_2010-Jan-30_281.5_-49.5"}, "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": 2010010000895}, "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 28 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 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": 171364.2642722356}, "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.Pacific-Ocean", "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": -49.5}, "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": 281.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "281.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -51.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -46.0], [-80.53, -45.47], [-80.18, -45.32], [-80.15, -45.25], [-80.25, -45.0], [-80.15, -44.75], [-80.25, -44.5], [-80.03, -43.97], [-79.5, -43.75], [-78.97, -43.97], [-78.82, -44.32], [-78.75, -44.35], [-78.5, -44.25], [-77.97, -44.47], [-77.82, -44.82], [-77.75, -44.85], [-77.5, -44.75], [-77.25, -44.85], [-77.0, -44.75], [-76.47, -44.97], [-76.25, -45.5], [-76.35, -45.75], [-76.25, -46.0], [-76.35, -46.25], [-76.32, -46.32], [-75.97, -46.47], [-75.82, -46.82], [-75.47, -46.97], [-75.25, -47.5], [-75.35, -47.75], [-75.25, -48.0], [-75.35, -48.25], [-75.25, -48.5], [-75.35, -48.75], [-75.25, -49.0], [-75.35, -49.25], [-75.32, -49.32], [-74.97, -49.47], [-74.82, -49.82], [-74.75, -49.85], [-74.5, -49.75], [-73.97, -49.97], [-73.75, -50.5], [-73.96, -51.0], [-73.75, -51.5], [-73.97, -52.03], [-74.5, -52.25], [-74.75, -52.15], [-75.0, -52.25], [-75.53, -52.03], [-75.68, -51.68], [-75.75, -51.65], [-76.0, -51.75], [-76.25, -51.65], [-76.5, -51.75], [-77.03, -51.53], [-77.18, -51.18], [-77.25, -51.15], [-77.5, -51.25], [-78.03, -51.03], [-78.18, -50.68], [-78.53, -50.53], [-78.68, -50.18], [-79.03, -50.03], [-79.25, -49.5], [-79.15, -49.25], [-79.18, -49.18], [-79.53, -49.03], [-79.75, -48.5], [-79.65, -48.25], [-79.68, -48.18], [-80.03, -48.03], [-80.25, -47.5], [-80.15, -47.25], [-80.25, -47.0], [-80.15, -46.75], [-80.18, -46.68], [-80.53, -46.53], [-80.75, -46.0]]]]}, "2010-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -46.0], [-80.53, -45.47], [-80.18, -45.32], [-80.15, -45.25], [-80.25, -45.0], [-80.15, -44.75], [-80.25, -44.5], [-80.03, -43.97], [-79.5, -43.75], [-78.97, -43.97], [-78.82, -44.32], [-78.75, -44.35], [-78.5, -44.25], [-77.97, -44.47], [-77.82, -44.82], [-77.75, -44.85], [-77.5, -44.75], [-77.25, -44.85], [-77.0, -44.75], [-76.47, -44.97], [-76.25, -45.5], [-76.35, -45.75], [-76.25, -46.0], [-76.35, -46.25], [-76.32, -46.32], [-75.97, -46.47], [-75.82, -46.82], [-75.47, -46.97], [-75.25, -47.5], [-75.35, -47.75], [-75.25, -48.0], [-75.35, -48.25], [-75.25, -48.5], [-75.35, -48.75], [-75.25, -49.0], [-75.35, -49.25], [-75.32, -49.32], [-74.97, -49.47], [-74.82, -49.82], [-74.75, -49.85], [-74.5, -49.75], [-73.97, -49.97], [-73.75, -50.5], [-73.96, -51.0], [-73.75, -51.5], [-73.97, -52.03], [-74.5, -52.25], [-74.75, -52.15], [-75.0, -52.25], [-75.53, -52.03], [-75.68, -51.68], [-75.75, -51.65], [-76.0, -51.75], [-76.25, -51.65], [-76.5, -51.75], [-77.03, -51.53], [-77.18, -51.18], [-77.25, -51.15], [-77.5, -51.25], [-78.03, -51.03], [-78.18, -50.68], [-78.53, -50.53], [-78.68, -50.18], [-79.03, -50.03], [-79.25, -49.5], [-79.15, -49.25], [-79.18, -49.18], [-79.53, -49.03], [-79.75, -48.5], [-79.65, -48.25], [-79.68, -48.18], [-80.03, -48.03], [-80.25, -47.5], [-80.15, -47.25], [-80.25, -47.0], [-80.15, -46.75], [-80.18, -46.68], [-80.53, -46.53], [-80.75, -46.0]]]]}, "2010-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -46.0], [-80.53, -45.47], [-80.18, -45.32], [-80.15, -45.25], [-80.25, -45.0], [-80.15, 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[-78.68, -50.18], [-79.03, -50.03], [-79.25, -49.5], [-79.15, -49.25], [-79.18, -49.18], [-79.53, -49.03], [-79.75, -48.5], [-79.65, -48.25], [-79.68, -48.18], [-80.03, -48.03], [-80.25, -47.5], [-80.15, -47.25], [-80.25, -47.0], [-80.15, -46.75], [-80.18, -46.68], [-80.53, -46.53], [-80.75, -46.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.486113924377889}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.540260794288853}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.168501044243897, 7.571707520158441, 9.037114696562469]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.9397874198680825, 4.963139252313965, 5.79176059150285]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.977216747374413, -3.5656732101986814, -2.0778924252934634]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.858201720606644, -4.486113924377889, -3.6115262508882893]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7414252445420237, -3.077043436351359, -1.7177672885492938]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.646600885437423, -3.4668847067804274, -2.3922605402715087]}}