{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:04.441484", "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": "2014-Apr-13_to_2014-Apr-15_300.5_-14.5"}, "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": 2014040000530}, "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": "April 13 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 15 2014"}, "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": 60151.66190655497}, "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": ["Bolivia", "Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "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": -14.5}, "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": 300.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 300.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.15, -12.25], [-63.25, -12.0], [-63.03, -11.47], [-62.5, -11.25], [-62.25, -11.35], [-62.0, -11.25], [-61.47, -11.47], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.75, -12.35], [-60.5, -12.25], [-59.97, -12.47], [-59.82, -12.82], [-59.47, -12.97], [-59.32, -13.32], [-58.97, -13.47], [-58.75, -14.0], [-58.85, -14.25], [-58.75, -14.5], [-58.97, -15.03], [-59.5, -15.25], [-59.75, -15.15], [-60.0, -15.25], [-60.25, -15.15], [-60.5, -15.25], [-61.03, -15.03], [-61.18, -14.68], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.68, -13.68], [-61.75, -13.65], [-62.0, -13.75], [-62.25, -13.65], [-62.5, -13.75], [-63.03, -13.53], [-63.25, -13.0], [-63.15, -12.75], [-63.25, -12.5], [-63.15, -12.25]]]]}, "2014-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.15, -12.25], [-63.25, -12.0], [-63.03, -11.47], [-62.5, -11.25], [-62.25, -11.35], [-62.0, -11.25], [-61.47, -11.47], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.75, -12.35], [-60.5, -12.25], [-59.97, -12.47], [-59.82, -12.82], [-59.47, -12.97], [-59.32, -13.32], [-58.97, -13.47], [-58.75, -14.0], [-58.85, -14.25], [-58.75, -14.5], [-58.97, -15.03], [-59.5, -15.25], [-59.75, -15.15], [-60.0, -15.25], [-60.25, -15.15], [-60.5, -15.25], [-61.03, -15.03], [-61.18, -14.68], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.68, -13.68], [-61.75, -13.65], [-62.0, -13.75], [-62.25, -13.65], [-62.5, -13.75], [-63.03, -13.53], [-63.25, -13.0], [-63.15, -12.75], [-63.25, -12.5], [-63.15, -12.25]]]]}, "2014-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.15, -12.25], [-63.25, -12.0], [-63.03, -11.47], [-62.5, -11.25], [-62.25, -11.35], [-62.0, -11.25], [-61.47, -11.47], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.75, -12.35], [-60.5, -12.25], [-59.97, -12.47], [-59.82, -12.82], [-59.47, -12.97], [-59.32, -13.32], [-58.97, -13.47], [-58.75, -14.0], [-58.85, -14.25], [-58.75, -14.5], [-58.97, -15.03], [-59.5, -15.25], [-59.75, -15.15], [-60.0, -15.25], [-60.25, -15.15], [-60.5, -15.25], [-61.03, -15.03], [-61.18, -14.68], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.68, -13.68], [-61.75, -13.65], [-62.0, -13.75], [-62.25, -13.65], [-62.5, -13.75], [-63.03, -13.53], [-63.25, -13.0], [-63.15, -12.75], [-63.25, -12.5], [-63.15, -12.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.5926075048722055}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3183896765792524}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.117055789399842, 21.46297416430889, 22.607350700300685]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.302520958611467, 18.920080755263882, 20.804400339278402]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.683453290213268, -3.237624876269635, -2.0340908632548547]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.321833758812545, -4.5926075048722055, -2.6737856248581124]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3668379598777105, -2.348426616113668, -1.3779571200797234]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5800847768443365, -3.0394878290774887, -1.6452896332576117]}}