{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:48.432077", "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-Nov-30_to_2014-Dec-04_39.0_-10.5"}, "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": 2014110001066}, "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": "November 30 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 04 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 100544.69499551319}, "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": ["Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "S.Eastern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": -10.5}, "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": 39.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 36.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.0, -10.75], [37.53, -10.97], [37.75, -11.5], [37.53, -12.03], [37.0, -12.25], [36.47, -12.03], [36.25, -11.5], [36.47, -10.97], [37.0, -10.75]]]]}, "2014-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, -10.47], [36.5, -10.25], [36.75, -10.35], [37.0, -10.25], [37.25, -10.35], [37.5, -10.25], [38.03, -10.47], [38.25, -11.0], [38.03, -11.53], [37.68, -11.68], [37.53, -12.03], [37.0, -12.25], [36.47, -12.03], [36.32, -11.68], [35.97, -11.53], [35.75, -11.0], [35.97, -10.47]]], [[[38.47, -11.03], [38.25, -10.5], [38.47, -9.97], [39.0, -9.75], [39.53, -9.97], [39.75, -10.5], [39.53, -11.03], [39.0, -11.25], [38.47, -11.03]]]]}, "2014-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.75, -11.0], [35.97, -10.47], [36.5, -10.25], [36.75, -10.35], [36.82, -10.32], [36.85, -10.25], [36.82, -10.18], [36.47, -10.03], [36.25, -9.5], [36.47, -8.97], [36.82, -8.82], [36.85, -8.75], [36.75, -8.5], [36.85, -8.25], [36.75, -8.0], [36.97, -7.47], [37.32, -7.32], [37.47, -6.97], [38.0, -6.75], [38.53, -6.97], [38.68, -7.32], [38.75, -7.35], [39.0, -7.25], [39.53, -7.47], [39.75, -8.0], [39.54, -8.5], [39.68, -8.82], [40.03, -8.97], [40.25, -9.5], [40.15, -9.75], [40.25, -10.0], [40.15, -10.25], [40.25, -10.5], [40.03, -11.03], [39.5, -11.25], [39.25, -11.15], [39.18, -11.18], [39.03, -11.53], [38.5, -11.75], [38.25, -11.65], [38.0, -11.75], [37.75, -11.65], [37.68, -11.68], [37.53, -12.03], [37.0, -12.25], [36.47, -12.03], [36.32, -11.68], [35.97, -11.53], [35.75, -11.0]]]]}, "2014-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.75, -11.0], [35.97, -10.47], [36.5, -10.25], [36.75, -10.35], [36.82, -10.32], [36.85, -10.25], [36.82, -10.18], [36.47, -10.03], [36.25, -9.5], [36.47, -8.97], [36.82, -8.82], [36.85, -8.75], [36.75, -8.5], [36.85, -8.25], [36.75, -8.0], [36.97, -7.47], [37.32, -7.32], [37.47, -6.97], [38.0, -6.75], [38.53, -6.97], [38.68, -7.32], [38.75, -7.35], [39.0, -7.25], [39.53, -7.47], [39.75, -8.0], [39.54, -8.5], [39.68, -8.82], [40.03, -8.97], [40.25, -9.5], [40.15, -9.75], [40.25, -10.0], [40.15, -10.25], [40.25, -10.5], [40.03, -11.03], [39.5, -11.25], [39.25, -11.15], [39.18, -11.18], [39.03, -11.53], [38.5, -11.75], [38.25, -11.65], [38.0, -11.75], [37.75, -11.65], [37.68, -11.68], [37.53, -12.03], [37.0, -12.25], [36.47, -12.03], [36.32, -11.68], [35.97, -11.53], [35.75, -11.0]]]]}, "2014-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.25, -9.5], [36.47, -8.97], [36.82, -8.82], [36.85, -8.75], [36.75, -8.5], [36.85, -8.25], [36.75, -8.0], [36.97, -7.47], [37.32, -7.32], [37.47, -6.97], [38.0, -6.75], [38.53, -6.97], [38.68, -7.32], [38.75, -7.35], [39.0, -7.25], [39.53, -7.47], [39.75, -8.0], [39.54, -8.5], [39.68, -8.82], [40.03, -8.97], [40.25, -9.5], [40.15, -9.75], [40.25, -10.0], [40.15, -10.25], [40.25, -10.5], [40.03, -11.03], [39.5, -11.25], [39.25, -11.15], [39.18, -11.18], [39.03, -11.53], [38.5, -11.75], [38.25, -11.65], [38.0, -11.75], [37.47, -11.53], [37.32, -11.18], [36.97, -11.03], [36.75, -10.5], [36.85, -10.25], [36.82, -10.18], [36.47, -10.03], [36.25, -9.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.784352985617147}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.5475905665952707}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.70732042705356, 23.078343359341716, 24.136298405090713, 23.73478054697881, 24.56261012127186]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.70732042705356, 21.616720249686637, 21.865055869031778, 21.650909956347903, 22.67495742028774]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.4473409435196345, -2.8793245221126424, -2.465663123039211, -2.893607021568879, -2.158854099999052]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.4473409435196345, -3.6363777286458117, -3.19791472661052, -3.784352985617147, -3.1198631064558526]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6951428593172606, -1.6558967611730235, -1.9737536596402379, -2.428434515328425, -1.8576776239497728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6951428593172606, -1.9463747552853232, -2.6893023297567993, -3.329191435837502, -2.901422927113195]}}