{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:25.027723", "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-May-24_to_2014-May-26_34.5_13.5"}, "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": 2014050000952}, "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 24 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 26 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": 60019.77994872841}, "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": ["Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "Sahara"]}, "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": 13.5}, "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": 34.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "34.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 31.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 35.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.82, 14.18], [31.97, 14.53], [32.5, 14.75], [32.75, 14.65], [33.0, 14.75], [33.25, 14.65], [33.32, 14.68], [33.35, 14.75], [33.25, 15.0], [33.47, 15.53], [33.82, 15.68], [33.97, 16.03], [34.5, 16.25], [35.03, 16.03], [35.25, 15.5], [35.15, 15.25], [35.25, 15.0], [35.13, 14.7], [35.53, 14.53], [35.75, 14.0], [35.65, 13.75], [35.75, 13.5], [35.65, 13.25], [35.75, 13.0], [35.53, 12.47], [35.0, 12.25], [34.75, 12.35], [34.5, 12.25], [33.97, 12.47], [33.82, 12.82], [33.75, 12.85], [33.5, 12.75], [33.25, 12.85], [33.0, 12.75], [32.7, 12.88], [32.53, 12.47], [32.0, 12.25], [31.75, 12.35], [31.5, 12.25], [30.97, 12.47], [30.75, 13.0], [30.97, 13.53], [31.32, 13.68], [31.47, 14.03], [31.82, 14.18]]]]}, "2014-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.82, 14.18], [31.97, 14.53], [32.5, 14.75], [32.75, 14.65], [33.0, 14.75], [33.25, 14.65], [33.32, 14.68], [33.35, 14.75], [33.25, 15.0], [33.47, 15.53], [33.82, 15.68], [33.97, 16.03], [34.5, 16.25], [35.03, 16.03], [35.25, 15.5], [35.15, 15.25], [35.25, 15.0], [35.13, 14.7], [35.53, 14.53], [35.75, 14.0], [35.65, 13.75], [35.75, 13.5], [35.65, 13.25], [35.75, 13.0], [35.53, 12.47], [35.0, 12.25], [34.75, 12.35], [34.5, 12.25], [33.97, 12.47], [33.82, 12.82], [33.75, 12.85], [33.5, 12.75], [33.25, 12.85], [33.0, 12.75], [32.7, 12.88], [32.53, 12.47], [32.0, 12.25], [31.75, 12.35], [31.5, 12.25], [30.97, 12.47], [30.75, 13.0], [30.97, 13.53], [31.32, 13.68], [31.47, 14.03], [31.82, 14.18]]]]}, "2014-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.82, 14.18], [31.97, 14.53], [32.5, 14.75], [32.75, 14.65], [33.0, 14.75], [33.25, 14.65], [33.32, 14.68], [33.35, 14.75], [33.25, 15.0], [33.47, 15.53], [33.82, 15.68], [33.97, 16.03], [34.5, 16.25], [35.03, 16.03], [35.25, 15.5], [35.15, 15.25], [35.25, 15.0], [35.13, 14.7], [35.53, 14.53], [35.75, 14.0], [35.65, 13.75], [35.75, 13.5], [35.65, 13.25], [35.75, 13.0], [35.53, 12.47], [35.0, 12.25], [34.75, 12.35], [34.5, 12.25], [33.97, 12.47], [33.82, 12.82], [33.75, 12.85], [33.5, 12.75], [33.25, 12.85], [33.0, 12.75], [32.7, 12.88], [32.53, 12.47], [32.0, 12.25], [31.75, 12.35], [31.5, 12.25], [30.97, 12.47], [30.75, 13.0], [30.97, 13.53], [31.32, 13.68], [31.47, 14.03], [31.82, 14.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.84016034704382}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.026688392867753}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.20040846843426, 27.484258045306035, 30.324867329923848]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.825920232181716, 26.031918414064876, 29.164912319016082]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2978766657966245, -5.88913544420426, -2.8930530686023728]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.226978235733952, -6.84016034704382, -3.7019193539654225]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7046711687130682, -3.0949423065872326, -1.5202979134578882]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0236675761532097, -3.444314200702871, -1.7973333929767288]}}