{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:40.323404", "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-10_to_2011-Jun-12_30.5_1.0"}, "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": 2011060000560}, "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 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 12 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": 86461.57966335723}, "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": ["Congo DRC", "Uganda"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-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": 1.0}, "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": 30.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -0.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.75, 1.0], [27.85, 1.25], [27.75, 1.5], [27.97, 2.03], [28.32, 2.18], [28.35, 2.25], [28.25, 2.5], [28.35, 2.75], [28.25, 3.0], [28.35, 3.25], [28.25, 3.5], [28.35, 3.75], [28.25, 4.0], [28.47, 4.53], [28.82, 4.68], [28.97, 5.03], [29.5, 5.25], [30.03, 5.03], [30.18, 4.68], [30.53, 4.53], [30.68, 4.18], [31.03, 4.03], [31.25, 3.5], [31.03, 2.97], [30.68, 2.82], [30.65, 2.75], [30.75, 2.5], [30.65, 2.25], [30.75, 2.0], [30.65, 1.75], [30.68, 1.68], [31.03, 1.53], [31.25, 1.0], [31.03, 0.47], [30.5, 0.25], [30.0, 0.46], [29.5, 0.25], [29.25, 0.35], [29.18, 0.32], [29.15, 0.25], [29.25, 0.0], [29.03, -0.53], [28.5, -0.75], [28.25, -0.65], [28.0, -0.75], [27.47, -0.53], [27.25, 0.0], [27.47, 0.53], [27.82, 0.68], [27.85, 0.75], [27.75, 1.0]]]]}, "2011-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.75, 1.0], [27.85, 1.25], [27.75, 1.5], [27.97, 2.03], [28.32, 2.18], [28.35, 2.25], [28.25, 2.5], [28.35, 2.75], [28.25, 3.0], [28.35, 3.25], [28.25, 3.5], [28.35, 3.75], [28.25, 4.0], [28.47, 4.53], [28.82, 4.68], [28.97, 5.03], [29.5, 5.25], [30.03, 5.03], [30.18, 4.68], [30.53, 4.53], [30.68, 4.18], [31.03, 4.03], [31.25, 3.5], [31.03, 2.97], [30.68, 2.82], [30.65, 2.75], [30.75, 2.5], [30.65, 2.25], [30.75, 2.0], [30.65, 1.75], [30.68, 1.68], [31.03, 1.53], [31.25, 1.0], [31.03, 0.47], [30.5, 0.25], [30.0, 0.46], [29.5, 0.25], [29.25, 0.35], [29.18, 0.32], [29.15, 0.25], [29.25, 0.0], [29.03, -0.53], [28.5, -0.75], [28.25, -0.65], [28.0, -0.75], [27.47, -0.53], [27.25, 0.0], [27.47, 0.53], [27.82, 0.68], [27.85, 0.75], [27.75, 1.0]]]]}, "2011-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.75, 1.0], [27.85, 1.25], [27.75, 1.5], [27.97, 2.03], [28.32, 2.18], [28.35, 2.25], [28.25, 2.5], [28.35, 2.75], [28.25, 3.0], [28.35, 3.25], [28.25, 3.5], [28.35, 3.75], [28.25, 4.0], [28.47, 4.53], [28.82, 4.68], [28.97, 5.03], [29.5, 5.25], [30.03, 5.03], [30.18, 4.68], [30.53, 4.53], [30.68, 4.18], [31.03, 4.03], [31.25, 3.5], [31.03, 2.97], [30.68, 2.82], [30.65, 2.75], [30.75, 2.5], [30.65, 2.25], [30.75, 2.0], [30.65, 1.75], [30.68, 1.68], [31.03, 1.53], [31.25, 1.0], [31.03, 0.47], [30.5, 0.25], [30.0, 0.46], [29.5, 0.25], [29.25, 0.35], [29.18, 0.32], [29.15, 0.25], [29.25, 0.0], [29.03, -0.53], [28.5, -0.75], [28.25, -0.65], [28.0, -0.75], [27.47, -0.53], [27.25, 0.0], [27.47, 0.53], [27.82, 0.68], [27.85, 0.75], [27.75, 1.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.8415927865106028}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7434555943638297}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.96340607693179, 20.32906397995606, 20.641846026353676]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.0709353216036, 18.74451591565395, 19.161508627066326]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4212102665051052, -2.0726206641485834, -1.7365358524378007]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.185871242774681, -2.8415927865106028, -2.3222426266285083]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5041245235242833, -2.2412596079861795, -1.8957219641687726]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.922065848426027, -2.716314847327965, -2.2917575915103767]}}