{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:43.479169", "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": "2019-May-29_to_2019-Jun-03_289.5_11.0"}, "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": 2019050000793}, "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 29 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 54599.05039466503}, "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", "N.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": ["Caribbean Sea"]}, "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": 11.0}, "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": 289.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.5, 11.75], [-69.97, 11.53], [-69.75, 11.0], [-69.96, 10.5], [-69.75, 10.0], [-69.97, 9.47], [-70.5, 9.25], [-71.03, 9.47], [-71.25, 10.0], [-71.04, 10.5], [-71.25, 11.0], [-71.03, 11.53], [-70.5, 11.75]]], [[[-73.03, 11.47], [-73.25, 12.0], [-73.03, 12.53], [-72.5, 12.75], [-71.97, 12.53], [-71.75, 12.0], [-71.97, 11.47], [-72.5, 11.25], [-73.03, 11.47]]]]}, "2019-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.5, 12.75], [-72.25, 12.65], [-72.0, 12.75], [-71.47, 12.53], [-71.25, 12.0], [-71.35, 11.75], [-71.32, 11.68], [-71.25, 11.65], [-71.0, 11.75], [-70.75, 11.65], [-70.5, 11.75], [-69.97, 11.53], [-69.75, 11.0], [-69.96, 10.5], [-69.75, 10.0], [-69.97, 9.47], [-70.5, 9.25], [-71.03, 9.47], [-71.25, 10.0], [-71.12, 10.3], [-71.25, 10.35], [-71.5, 10.25], [-71.75, 10.35], [-72.0, 10.25], [-72.53, 10.47], [-72.68, 10.82], [-72.75, 10.85], [-73.0, 10.75], [-73.53, 10.97], [-73.75, 11.5], [-73.53, 12.03], [-73.18, 12.18], [-73.03, 12.53], [-72.5, 12.75]]]]}, "2019-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.5, 12.75], [-72.25, 12.65], [-72.0, 12.75], [-71.47, 12.53], [-71.25, 12.0], [-71.35, 11.75], [-71.32, 11.68], [-71.25, 11.65], [-71.0, 11.75], [-70.75, 11.65], [-70.68, 11.68], [-70.53, 12.03], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.82, 11.68], [-68.47, 11.53], [-68.25, 11.0], [-68.47, 10.47], [-69.0, 10.25], [-69.25, 10.35], [-69.32, 10.32], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.25, 9.35], [-70.5, 9.25], [-71.03, 9.47], [-71.25, 10.0], [-71.15, 10.25], [-71.18, 10.32], [-71.25, 10.35], [-71.5, 10.25], [-71.75, 10.35], [-72.0, 10.25], [-72.53, 10.47], [-72.68, 10.82], [-72.75, 10.85], [-73.0, 10.75], [-73.53, 10.97], [-73.75, 11.5], [-73.53, 12.03], [-73.18, 12.18], [-73.03, 12.53], [-72.5, 12.75]]]]}, "2019-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.53, 10.97], [-73.75, 11.5], [-73.53, 12.03], [-73.0, 12.25], [-72.75, 12.15], [-72.68, 12.18], [-72.53, 12.53], [-72.0, 12.75], [-71.47, 12.53], [-71.25, 12.0], [-71.35, 11.75], [-71.32, 11.68], [-71.25, 11.65], [-71.0, 11.75], [-70.75, 11.65], [-70.68, 11.68], [-70.53, 12.03], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.82, 11.68], [-68.47, 11.53], [-68.25, 11.0], [-68.47, 10.47], [-69.0, 10.25], [-69.25, 10.35], [-69.32, 10.32], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.18, 10.32], [-71.25, 10.35], [-71.5, 10.25], [-71.75, 10.35], [-72.0, 10.25], [-72.53, 10.47], [-72.68, 10.82], [-72.75, 10.85], [-73.0, 10.75], [-73.53, 10.97]]]]}, "2019-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.68, 11.68], [-70.53, 12.03], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.82, 11.68], [-68.47, 11.53], [-68.25, 11.0], [-68.47, 10.47], [-69.0, 10.25], [-69.25, 10.35], [-69.32, 10.32], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.25, 10.5], [-71.15, 10.75], [-71.25, 11.0], [-71.03, 11.53], [-70.68, 11.68]]], [[[-72.53, 11.47], [-72.75, 12.0], [-72.53, 12.53], [-72.0, 12.75], [-71.47, 12.53], [-71.25, 12.0], [-71.47, 11.47], [-72.0, 11.25], [-72.53, 11.47]]]]}, "2019-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.0, 11.75], [-69.47, 11.53], [-69.25, 11.0], [-69.47, 10.47], [-70.0, 10.25], [-70.53, 10.47], [-70.75, 11.0], [-70.53, 11.53], [-70.0, 11.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.640752711315031}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.9251204890012739}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.554772710427073, 26.269033312014017, 26.02420478582934, 26.374517850042537, 25.933731570978864, 27.392160520381537]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.707718641640042, 23.214983346153247, 23.639553679813844, 23.925753054006805, 24.194565304705236, 27.392160520381537]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6118068547074245, -1.9803322047649545, -1.945265932120157, -1.8534194848032257, -2.0760944156247207, -1.587803059040425]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.5541099286944586, -2.6157367306897186, -3.640752711315031, -2.812454026769103, -3.1584987546471552, -1.587803059040425]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4392854940595186, -1.9886320056644464, -1.9242930649157581, -1.7488993426501651, -1.8771695561928248, -1.2247488902595285]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5748143106664652, -2.5023959082727423, -2.7365648273666614, -2.590265430772591, -2.396613150425751, -1.2247488902595285]}}