{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:20.638331", "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": "2012-May-12_to_2012-May-14_308.5_-34.5"}, "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": 2012050000699}, "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": "May 12 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 14 2012"}, "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": 65108.81570936909}, "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": ["Brazil"]}, "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": -34.5}, "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": 308.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, -32.82], [-53.03, -32.47], [-52.68, -32.32], [-52.65, -32.25], [-52.75, -32.0], [-52.53, -31.47], [-52.18, -31.32], [-52.03, -30.97], [-51.5, -30.75], [-51.25, -30.85], [-51.0, -30.75], [-50.75, -30.85], [-50.68, -30.82], [-50.53, -30.47], [-50.0, -30.25], [-49.47, -30.47], [-49.25, -31.0], [-49.35, -31.25], [-49.25, -31.5], [-49.35, -31.75], [-49.25, -32.0], [-49.35, -32.25], [-49.25, -32.5], [-49.47, -33.03], [-49.82, -33.18], [-49.85, -33.25], [-49.75, -33.5], [-49.97, -34.03], [-50.32, -34.18], [-50.47, -34.53], [-50.82, -34.68], [-50.97, -35.03], [-51.5, -35.25], [-52.03, -35.03], [-52.25, -34.5], [-52.03, -33.97], [-51.68, -33.82], [-51.65, -33.75], [-51.7, -33.62], [-52.0, -33.75], [-52.25, -33.65], [-52.32, -33.68], [-52.47, -34.03], [-52.82, -34.18], [-52.97, -34.53], [-53.5, -34.75], [-54.03, -34.53], [-54.25, -34.0], [-54.03, -33.47], [-53.68, -33.32], [-53.53, -32.97], [-53.18, -32.82]]]]}, "2012-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, -32.82], [-53.03, -32.47], [-52.68, -32.32], [-52.65, -32.25], [-52.75, -32.0], [-52.53, -31.47], [-52.18, -31.32], [-52.03, -30.97], [-51.5, -30.75], [-51.25, -30.85], [-51.0, -30.75], [-50.75, -30.85], [-50.68, -30.82], [-50.53, -30.47], [-50.0, -30.25], [-49.47, -30.47], [-49.25, -31.0], [-49.35, -31.25], [-49.25, -31.5], [-49.35, -31.75], [-49.25, -32.0], [-49.35, -32.25], [-49.25, -32.5], [-49.47, -33.03], [-49.82, -33.18], [-49.85, -33.25], [-49.75, -33.5], [-49.97, -34.03], [-50.32, -34.18], [-50.47, -34.53], [-50.82, -34.68], [-50.97, -35.03], [-51.5, -35.25], [-52.03, -35.03], [-52.25, -34.5], [-52.03, -33.97], [-51.68, -33.82], [-51.65, -33.75], [-51.7, -33.62], [-52.0, -33.75], [-52.25, -33.65], [-52.32, -33.68], [-52.47, -34.03], [-52.82, -34.18], [-52.97, -34.53], [-53.5, -34.75], [-54.03, -34.53], [-54.25, -34.0], [-54.03, -33.47], [-53.68, -33.32], [-53.53, -32.97], [-53.18, -32.82]]]]}, "2012-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, -32.82], [-53.03, -32.47], [-52.68, -32.32], [-52.65, -32.25], [-52.75, -32.0], [-52.53, -31.47], [-52.18, -31.32], [-52.03, -30.97], [-51.5, -30.75], [-51.25, -30.85], [-51.0, -30.75], [-50.75, -30.85], [-50.68, -30.82], [-50.53, -30.47], [-50.0, -30.25], [-49.47, -30.47], [-49.25, -31.0], [-49.35, -31.25], [-49.25, -31.5], [-49.35, -31.75], [-49.25, -32.0], [-49.35, -32.25], [-49.25, -32.5], [-49.47, -33.03], [-49.82, -33.18], [-49.85, -33.25], [-49.75, -33.5], [-49.97, -34.03], [-50.32, -34.18], [-50.47, -34.53], [-50.82, -34.68], [-50.97, -35.03], [-51.5, -35.25], [-52.03, -35.03], [-52.25, -34.5], [-52.03, -33.97], [-51.68, -33.82], [-51.65, -33.75], [-51.7, -33.62], [-52.0, -33.75], [-52.25, -33.65], [-52.32, -33.68], [-52.47, -34.03], [-52.82, -34.18], [-52.97, -34.53], [-53.5, -34.75], [-54.03, -34.53], [-54.25, -34.0], [-54.03, -33.47], [-53.68, -33.32], [-53.53, -32.97], [-53.18, -32.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.8369921175230957}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.734489039519708}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.17825150874512, 15.030561536164612, 15.860734937508767]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.760896853714655, 13.113995554301198, 13.570858552943378]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3815968192019796, -3.4020417215440126, -2.4198285778131323]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.04985337809984, -3.8369921175230957, -2.98642487160771]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.627663431767301, -2.28452425724998, -1.5535636967114164]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.051459210513268, -2.4921865833184174, -1.7212022871633332]}}