{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:38.349999", "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-03_to_2010-May-06_36.5_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": 2010050000144}, "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 03 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 66249.76324497117}, "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": 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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\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": 38.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.0, 12.75], [35.25, 12.65], [35.32, 12.68], [35.47, 13.03], 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15.18], [36.97, 15.53], [37.5, 15.75], [38.0, 15.54], [38.5, 15.75], [39.03, 15.53], [39.25, 15.0], [39.03, 14.47], [38.68, 14.32], [38.65, 14.25], [38.75, 14.0], [38.53, 13.47], [38.0, 13.25], [37.75, 13.35], [37.68, 13.32], [37.65, 13.25], [37.75, 13.0], [37.53, 12.47], [37.13, 12.3], [37.25, 12.0], [37.03, 11.47], [36.68, 11.32], [36.65, 11.25], [36.75, 11.0], [36.53, 10.47], [36.0, 10.25], [35.75, 10.35], [35.5, 10.25], [34.97, 10.47], [34.82, 10.82], [34.75, 10.85], [34.5, 10.75], [33.97, 10.97], [33.75, 11.5], [33.97, 12.03], [34.32, 12.18], [34.47, 12.53], [35.0, 12.75]]]]}, "2010-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.0, 12.75], [35.25, 12.65], [35.32, 12.68], [35.47, 13.03], [35.82, 13.18], [35.85, 13.25], [35.75, 13.5], [35.97, 14.03], [36.32, 14.18], [36.35, 14.25], [36.25, 14.5], [36.47, 15.03], [36.82, 15.18], [36.97, 15.53], [37.5, 15.75], [38.0, 15.54], [38.5, 15.75], [39.03, 15.53], [39.25, 15.0], [39.03, 14.47], [38.68, 14.32], 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.546008993366911}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.3771847273269624}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.515103762405545, 27.020562436400326, 26.698171605927314, 26.7774141291942]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.565731834764904, 23.203780637286513, 22.520092191563265, 24.269062634111208]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.6883417091413757, -3.1266958796463897, -3.388208285082726, -3.061741283012702]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.546008993366911, -3.7838964716439705, -4.161020251262528, -3.2879314890444107]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9799209158479483, -1.6270476514246546, -1.739975726462955, -1.5024249683980495]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.322856478745506, -2.111447930128644, -1.9872217192853718, -1.5778346583546272]}}