{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:20.988609", "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": "2016-May-05_to_2016-May-07_35.0_15.0"}, "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": 2016050000234}, "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 05 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 07 2016"}, "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": 87070.36824568437}, "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": ["Eritrea", "Ethiopia", "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": 15.0}, "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": 35.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.25}, "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": {"2016-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 15.53], [34.32, 15.68], [34.47, 16.03], [35.0, 16.25], [35.25, 16.15], [35.5, 16.25], [36.03, 16.03], [36.18, 15.68], [36.25, 15.65], [36.5, 15.75], [37.03, 15.53], [37.25, 15.0], [37.15, 14.75], [37.25, 14.5], [37.03, 13.97], [36.68, 13.82], [36.54, 13.5], [36.75, 13.0], [36.65, 12.75], [36.68, 12.68], [37.03, 12.53], [37.18, 12.18], [37.53, 12.03], [37.75, 11.5], [37.53, 10.97], [37.0, 10.75], [36.47, 10.97], [36.32, 11.32], [36.0, 11.46], [35.5, 11.25], [35.25, 11.35], [35.0, 11.25], [34.47, 11.47], [34.32, 11.82], [33.97, 11.97], [33.75, 12.5], [33.96, 13.0], [33.75, 13.5], [33.96, 14.0], [33.75, 14.5], [33.85, 14.75], [33.75, 15.0], [33.97, 15.53]]]]}, "2016-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 15.53], [34.32, 15.68], [34.47, 16.03], [35.0, 16.25], [35.25, 16.15], [35.5, 16.25], [36.03, 16.03], [36.18, 15.68], [36.25, 15.65], [36.5, 15.75], [37.03, 15.53], [37.25, 15.0], [37.15, 14.75], [37.25, 14.5], [37.03, 13.97], [36.68, 13.82], [36.54, 13.5], [36.75, 13.0], [36.65, 12.75], [36.68, 12.68], [37.03, 12.53], [37.18, 12.18], [37.53, 12.03], [37.75, 11.5], [37.53, 10.97], [37.0, 10.75], [36.47, 10.97], [36.32, 11.32], [36.0, 11.46], [35.5, 11.25], [35.25, 11.35], [35.0, 11.25], [34.47, 11.47], [34.32, 11.82], [33.97, 11.97], [33.75, 12.5], [33.96, 13.0], [33.75, 13.5], [33.96, 14.0], [33.75, 14.5], [33.85, 14.75], [33.75, 15.0], [33.97, 15.53]]]]}, "2016-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 15.53], [34.32, 15.68], [34.47, 16.03], [35.0, 16.25], [35.25, 16.15], [35.5, 16.25], [36.03, 16.03], [36.18, 15.68], [36.25, 15.65], [36.5, 15.75], [37.03, 15.53], [37.25, 15.0], [37.15, 14.75], [37.25, 14.5], [37.03, 13.97], [36.68, 13.82], [36.54, 13.5], [36.75, 13.0], [36.65, 12.75], [36.68, 12.68], [37.03, 12.53], [37.18, 12.18], [37.53, 12.03], [37.75, 11.5], [37.53, 10.97], [37.0, 10.75], [36.47, 10.97], [36.32, 11.32], [36.0, 11.46], [35.5, 11.25], [35.25, 11.35], [35.0, 11.25], [34.47, 11.47], [34.32, 11.82], [33.97, 11.97], [33.75, 12.5], [33.96, 13.0], [33.75, 13.5], [33.96, 14.0], [33.75, 14.5], [33.85, 14.75], [33.75, 15.0], [33.97, 15.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.813492801490497}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5333086234191216}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.054312097566367, 29.169648583305275, 29.64404065886248]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.21004851787643, 18.75007107433413, 18.695587539210976]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.152309660440335, -3.978516762278234, -3.469099447538795]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.771713379645348, -4.813492801490497, -4.7322251706839324]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.683817917182497, -2.1937002396384626, -1.9033881483422406]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1248220619839757, -2.714697297992233, -2.3838869877995013]}}