{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:25.644738", "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": "2017-Nov-20_to_2017-Nov-22_307.0_-35.0"}, "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": 2017110000725}, "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": "November 20 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 22 2017"}, "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": 73545.29924166239}, "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": ["Uruguay"]}, "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": ["South Atlantic 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": -35.0}, "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": 307.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 303.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.65, -33.75], [-56.75, -33.5], [-56.53, -32.97], [-56.0, -32.75], [-55.75, -32.85], [-55.5, -32.75], [-55.25, -32.85], [-55.0, -32.75], [-54.47, -32.97], [-54.32, -33.32], [-53.97, -33.47], [-53.82, -33.82], [-53.75, -33.85], [-53.5, -33.75], [-53.25, -33.85], [-53.0, -33.75], [-52.75, -33.85], [-52.5, -33.75], [-51.97, -33.97], [-51.75, -34.5], [-51.85, -34.75], [-51.75, -35.0], [-51.97, -35.53], [-52.32, -35.68], [-52.47, -36.03], [-52.82, -36.18], [-52.97, -36.53], [-53.5, -36.75], [-53.75, -36.65], [-53.82, -36.68], [-53.97, -37.03], [-54.5, -37.25], [-54.75, -37.15], [-55.0, -37.25], [-55.53, -37.03], [-55.75, -36.5], [-55.54, -36.0], [-55.75, -35.5], [-55.62, -35.2], [-55.75, -35.15], [-56.0, -35.25], [-56.53, -35.03], [-56.75, -34.5], [-56.65, -34.25], [-56.75, -34.0], [-56.65, -33.75]]]]}, "2017-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.65, -33.75], [-56.75, -33.5], [-56.53, -32.97], [-56.0, -32.75], [-55.75, -32.85], [-55.5, -32.75], [-55.25, -32.85], [-55.0, -32.75], [-54.47, -32.97], [-54.32, -33.32], [-53.97, -33.47], [-53.82, -33.82], [-53.75, -33.85], [-53.5, -33.75], [-53.25, -33.85], [-53.0, -33.75], [-52.75, -33.85], [-52.5, -33.75], [-51.97, -33.97], [-51.75, -34.5], [-51.85, -34.75], [-51.75, -35.0], [-51.97, -35.53], [-52.32, -35.68], [-52.47, -36.03], [-52.82, -36.18], [-52.97, -36.53], [-53.5, -36.75], [-53.75, -36.65], [-53.82, -36.68], [-53.97, -37.03], [-54.5, -37.25], [-54.75, -37.15], [-55.0, -37.25], [-55.53, -37.03], [-55.75, -36.5], [-55.54, -36.0], [-55.75, -35.5], [-55.62, -35.2], [-55.75, -35.15], [-56.0, -35.25], [-56.53, -35.03], [-56.75, -34.5], [-56.65, -34.25], [-56.75, -34.0], [-56.65, -33.75]]]]}, "2017-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.65, -33.75], [-56.75, -33.5], [-56.53, -32.97], [-56.0, -32.75], [-55.75, -32.85], [-55.5, -32.75], [-55.25, -32.85], [-55.0, -32.75], [-54.47, -32.97], [-54.32, -33.32], [-53.97, -33.47], [-53.82, -33.82], [-53.75, -33.85], [-53.5, -33.75], [-53.25, -33.85], [-53.0, -33.75], [-52.75, -33.85], [-52.5, -33.75], [-51.97, -33.97], [-51.75, -34.5], [-51.85, -34.75], [-51.75, -35.0], [-51.97, -35.53], [-52.32, -35.68], [-52.47, -36.03], [-52.82, -36.18], [-52.97, -36.53], [-53.5, -36.75], [-53.75, -36.65], [-53.82, -36.68], [-53.97, -37.03], [-54.5, -37.25], [-54.75, -37.15], [-55.0, -37.25], [-55.53, -37.03], [-55.75, -36.5], [-55.54, -36.0], [-55.75, -35.5], [-55.62, -35.2], [-55.75, -35.15], [-56.0, -35.25], [-56.53, -35.03], [-56.75, -34.5], [-56.65, -34.25], [-56.75, -34.0], [-56.65, -33.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.6187135900369185}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.6647199858248967}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.118721538261639, 14.368632747371748, 13.97366321052715]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.975170431140612, 12.759112665101384, 13.092559217382075]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.576631621027524, -3.4512882094100696, -3.966240127037097]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.6187135900369185, -4.592434160272603, -4.835165035347643]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7068042669869588, -1.6329118365634865, -1.885358546215623]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0551372951357596, -1.9022038388918634, -2.636810991823377]}}