{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:39.066771", "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": "2010-May-08_to_2010-May-12_37.0_3.5"}, "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": 2010050000257}, "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 08 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 12 2010"}, "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": 86404.4078951864}, "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": ["Ethiopia", "Kenya", "South Sudan", "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": 3.5}, "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": 37.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 33.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.75, 2.5], [33.85, 2.75], [33.75, 3.0], [33.97, 3.53], [34.5, 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4.04], [36.32, 4.18], [36.43, 4.43]]]]}, "2010-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 5.03], [34.32, 5.18], [34.47, 5.53], [35.0, 5.75], [35.25, 5.65], [35.5, 5.75], [35.75, 5.65], [36.0, 5.75], [36.53, 5.53], [36.75, 5.0], [36.57, 4.57], [37.0, 4.75], [37.53, 4.53], [37.75, 4.0], [37.65, 3.75], [37.68, 3.68], [38.03, 3.53], [38.25, 3.0], [38.03, 2.47], [37.5, 2.25], [37.25, 2.35], [37.13, 2.3], [37.25, 2.0], [37.03, 1.47], [36.5, 1.25], [36.0, 1.46], [35.5, 1.25], [34.97, 1.47], [34.82, 1.82], [34.47, 1.97], [34.25, 2.5], [34.35, 2.75], [34.25, 3.0], [34.35, 3.25], [34.32, 3.32], [33.97, 3.47], [33.75, 4.0], [33.85, 4.25], [33.75, 4.5], [33.97, 5.03]], [[36.43, 4.43], [36.0, 4.25], [35.75, 4.35], [35.68, 4.32], [35.65, 4.25], [35.68, 4.18], [36.0, 4.04], [36.32, 4.18], [36.43, 4.43]]]]}, "2010-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 4.53], [35.0, 4.75], [35.53, 4.53], [35.68, 4.18], [36.0, 4.04], [36.32, 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20.121868990761925, 22.911159675820215, 23.904357398635057]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1328377921302346, -2.8775423876789405, -3.7948263217452762, -2.7839460932393543, -2.56778961643228]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9732597809926347, -3.664445476686012, -5.739552522331394, -3.3097591033552476, -3.219795770653832]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2995891115491576, -1.670580757949603, -2.292938810132462, -1.701740273434973, -1.6591963629727173]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4189010580199155, -2.398645751870488, -3.5130732649004766, -2.874021416892434, -2.163582917582913]}}