{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:39.682158", "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": "2011-Jun-06_to_2011-Jun-09_322.5_-9.5"}, "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": 2011060000384}, "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": "June 06 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 52021.869894270996}, "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": ["N.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": -9.5}, "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": 322.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "322.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 321.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 324.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.53, -10.03], [-38.75, -9.5], [-38.53, -8.97], [-38.0, -8.75], [-37.75, -8.85], [-37.5, -8.75], [-36.97, -8.97], [-36.75, -9.5], [-36.97, -10.03], [-37.5, -10.25], [-37.75, -10.15], [-38.0, -10.25], [-38.53, -10.03]]]]}, "2011-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.0, -8.75], [-37.75, -8.85], [-37.68, -8.82], [-37.65, -8.75], [-37.75, -8.5], [-37.65, -8.25], [-37.75, -8.0], [-37.65, -7.75], [-37.75, -7.5], [-37.53, -6.97], [-37.18, -6.82], [-37.15, -6.75], [-37.25, -6.5], [-37.03, -5.97], [-36.5, -5.75], [-36.25, -5.85], [-36.18, -5.82], [-36.03, -5.47], [-35.5, -5.25], [-34.97, -5.47], [-34.75, -6.0], [-34.97, -6.53], [-35.32, -6.68], [-35.35, -6.75], [-35.25, -7.0], [-35.35, -7.25], [-35.25, -7.5], [-35.47, -8.03], [-35.82, -8.18], [-35.96, -8.5], [-35.75, -9.0], [-35.97, -9.53], [-36.32, -9.68], [-36.47, -10.03], [-37.0, -10.25], [-37.25, -10.15], [-37.5, -10.25], [-37.75, -10.15], [-37.82, -10.18], [-37.97, -10.53], [-38.5, -10.75], [-39.03, -10.53], [-39.25, -10.0], [-39.03, -9.47], [-38.68, -9.32], [-38.53, -8.97], [-38.0, -8.75]]]]}, "2011-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.0, -8.75], [-37.75, -8.85], [-37.68, -8.82], [-37.65, -8.75], [-37.75, -8.5], [-37.65, -8.25], [-37.75, -8.0], [-37.65, -7.75], [-37.75, -7.5], [-37.53, -6.97], [-37.18, -6.82], [-37.15, -6.75], [-37.25, -6.5], [-37.03, -5.97], [-36.5, -5.75], [-36.25, -5.85], [-36.18, -5.82], [-36.03, -5.47], [-35.5, -5.25], [-34.97, -5.47], [-34.75, -6.0], [-34.97, -6.53], [-35.32, -6.68], [-35.35, -6.75], [-35.25, -7.0], [-35.35, -7.25], [-35.25, -7.5], [-35.47, -8.03], [-35.82, -8.18], [-35.96, -8.5], [-35.75, -9.0], [-35.97, -9.53], [-36.32, -9.68], [-36.47, -10.03], [-37.0, -10.25], [-37.25, -10.15], [-37.5, -10.25], [-37.75, -10.15], [-37.82, -10.18], [-37.97, -10.53], [-38.5, -10.75], [-39.03, -10.53], [-39.25, -10.0], [-39.03, -9.47], [-38.68, -9.32], [-38.53, -8.97], [-38.0, -8.75]]]]}, "2011-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-37.68, -8.82], [-37.65, -8.75], [-37.75, -8.5], [-37.65, -8.25], [-37.75, -8.0], [-37.65, -7.75], [-37.75, -7.5], [-37.53, -6.97], [-37.18, -6.82], [-37.15, -6.75], [-37.25, -6.5], [-37.03, -5.97], [-36.5, -5.75], [-36.25, -5.85], [-36.18, -5.82], [-36.03, -5.47], [-35.5, -5.25], [-34.97, -5.47], [-34.75, -6.0], [-34.97, -6.53], [-35.32, -6.68], [-35.35, -6.75], [-35.25, -7.0], [-35.35, -7.25], [-35.25, -7.5], [-35.47, -8.03], [-35.82, -8.18], [-35.96, -8.5], [-35.75, -9.0], [-35.97, -9.53], [-36.32, -9.68], [-36.47, -10.03], [-37.0, -10.25], [-37.25, -10.15], [-37.5, -10.25], [-37.8, -10.12], [-37.97, -10.53], [-38.5, -10.75], [-39.03, -10.53], [-39.25, -10.0], [-39.03, -9.47], [-38.5, -9.25], [-38.2, -9.38], [-38.03, -8.97], [-37.68, -8.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.648661810268493}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1981468772308075}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.272777204377917, 22.3301627491947, 22.358622262922495, 22.26895673420023]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.07434006056303, 20.175186316928546, 20.073624635423982, 20.072978260362675]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3409643822517694, -1.2465549492256134, -1.1785278518383226, -1.1497063270882215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4226473683217478, -1.648661810268493, -1.6176290996830858, -1.4470315344465234]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3904031018321255, -1.6288638570236271, -1.5238792873801126, -1.5217601939427554]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.455791134291486, -2.2031539697608697, -1.725784528897493, -2.133722541373853]}}