{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:39.017260", "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-Oct-28_to_2011-Oct-30_289.0_8.0"}, "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": 2011100001252}, "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": "October 28 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 30 2011"}, "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": 55173.98071457221}, "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": ["Colombia", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 8.0}, "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": 289.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 287.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, 8.53], [-72.0, 8.75], [-71.75, 8.65], [-71.5, 8.75], [-71.25, 8.65], [-71.0, 8.75], [-70.75, 8.65], [-70.68, 8.68], [-70.53, 9.03], [-70.0, 9.25], [-69.47, 9.03], [-69.25, 8.5], [-69.35, 8.25], [-69.25, 8.0], [-69.35, 7.75], [-69.25, 7.5], [-69.35, 7.25], [-69.25, 7.0], [-69.47, 6.47], [-69.82, 6.32], [-69.97, 5.97], [-70.5, 5.75], [-71.0, 5.96], [-71.32, 5.82], [-71.47, 5.47], [-72.0, 5.25], [-72.53, 5.47], [-72.75, 6.0], [-72.53, 6.53], [-72.18, 6.68], [-72.15, 6.75], [-72.18, 6.82], [-72.53, 6.97], [-72.75, 7.5], [-72.65, 7.75], [-72.75, 8.0], [-72.53, 8.53]]]]}, "2011-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, 8.53], [-72.0, 8.75], [-71.75, 8.65], [-71.5, 8.75], [-71.25, 8.65], [-71.0, 8.75], [-70.75, 8.65], [-70.68, 8.68], [-70.53, 9.03], [-70.0, 9.25], [-69.47, 9.03], [-69.25, 8.5], [-69.35, 8.25], [-69.25, 8.0], [-69.35, 7.75], [-69.25, 7.5], [-69.35, 7.25], [-69.25, 7.0], [-69.47, 6.47], [-69.82, 6.32], [-69.97, 5.97], [-70.5, 5.75], [-71.0, 5.96], [-71.32, 5.82], [-71.47, 5.47], [-72.0, 5.25], [-72.53, 5.47], [-72.75, 6.0], [-72.53, 6.53], [-72.18, 6.68], [-72.15, 6.75], [-72.18, 6.82], [-72.53, 6.97], [-72.75, 7.5], [-72.65, 7.75], [-72.75, 8.0], [-72.53, 8.53]]]]}, "2011-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, 8.53], [-72.0, 8.75], [-71.75, 8.65], [-71.5, 8.75], [-71.25, 8.65], [-71.0, 8.75], [-70.75, 8.65], [-70.68, 8.68], [-70.53, 9.03], [-70.0, 9.25], [-69.47, 9.03], [-69.25, 8.5], [-69.35, 8.25], [-69.25, 8.0], [-69.35, 7.75], [-69.25, 7.5], [-69.35, 7.25], [-69.25, 7.0], [-69.47, 6.47], [-69.82, 6.32], [-69.97, 5.97], [-70.5, 5.75], [-71.0, 5.96], [-71.32, 5.82], [-71.47, 5.47], [-72.0, 5.25], [-72.53, 5.47], [-72.75, 6.0], [-72.53, 6.53], [-72.18, 6.68], [-72.15, 6.75], [-72.18, 6.82], [-72.53, 6.97], [-72.75, 7.5], [-72.65, 7.75], [-72.75, 8.0], [-72.53, 8.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.1454096162303244}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.040992645376597}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.288270676278103, 23.009233663001737, 23.536180426630096]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.074083581308741, 15.01109015343161, 14.186402411443908]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0337007029835314, -2.3241708404041534, -1.7651063927421073]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.572428235885525, -3.1454096162303244, -2.583538102669081]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.309766253945388, -2.59013823622362, -1.9791962672969277]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.783540164550919, -3.3074575453624706, -2.9742970696235056]}}