{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:09.942974", "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-Jul-23_to_2010-Jul-26_36.5_2.5"}, "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": 2010070000964}, "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": "July 23 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 26 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": 117091.53349862278}, "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"]}, "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": 2.5}, "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": 34.75}, "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": 7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.0, 3.75], [36.25, 3.65], [36.5, 3.75], [37.03, 3.53], [37.18, 3.18], [37.53, 3.03], [37.75, 2.5], [37.53, 1.97], [37.18, 1.82], [37.15, 1.75], [37.25, 1.5], [37.03, 0.97], [36.5, 0.75], [35.97, 0.97], [35.75, 1.5], [35.85, 1.75], [35.82, 1.82], [35.47, 1.97], [35.25, 2.5], [35.35, 2.75], [35.25, 3.0], [35.47, 3.53], [36.0, 3.75]]], [[[35.0, 6.75], [35.53, 6.53], [35.75, 6.0], [35.65, 5.75], [35.75, 5.5], [35.53, 4.97], [35.0, 4.75], [34.47, 4.97], [34.25, 5.5], [34.35, 5.75], [34.25, 6.0], [34.47, 6.53], [35.0, 6.75]]]]}, "2010-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 6.53], [35.0, 6.75], [35.25, 6.65], [35.32, 6.68], [35.35, 6.75], [35.25, 7.0], [35.47, 7.53], [36.0, 7.75], [36.53, 7.53], [36.68, 7.18], [37.03, 7.03], [37.18, 6.68], [37.53, 6.53], [37.68, 6.18], [38.03, 6.03], [38.25, 5.5], [38.03, 4.97], [37.68, 4.82], [37.65, 4.75], [37.75, 4.5], [37.53, 3.97], [37.18, 3.82], [37.15, 3.75], [37.25, 3.5], [37.15, 3.25], [37.18, 3.18], [37.53, 3.03], [37.75, 2.5], [37.65, 2.25], [37.75, 2.0], [37.65, 1.75], [37.75, 1.5], [37.53, 0.97], [37.0, 0.75], [36.75, 0.85], [36.5, 0.75], [36.25, 0.85], [36.0, 0.75], [35.47, 0.97], [35.25, 1.5], [35.46, 2.0], [35.32, 2.32], [34.97, 2.47], [34.75, 3.0], [34.85, 3.25], [34.75, 3.5], [34.85, 3.75], [34.75, 4.0], [34.85, 4.25], [34.75, 4.5], [34.85, 4.75], [34.82, 4.82], [34.47, 4.97], [34.25, 5.5], [34.35, 5.75], [34.25, 6.0], [34.47, 6.53]]]]}, "2010-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 6.53], [35.0, 6.75], [35.25, 6.65], [35.32, 6.68], [35.35, 6.75], [35.25, 7.0], [35.47, 7.53], [36.0, 7.75], [36.53, 7.53], [36.68, 7.18], [37.03, 7.03], [37.18, 6.68], [37.53, 6.53], [37.68, 6.18], [38.03, 6.03], [38.25, 5.5], [38.03, 4.97], [37.68, 4.82], [37.65, 4.75], [37.75, 4.5], [37.53, 3.97], [37.18, 3.82], [37.15, 3.75], [37.25, 3.5], [37.15, 3.25], [37.18, 3.18], [37.53, 3.03], [37.75, 2.5], [37.65, 2.25], [37.75, 2.0], [37.65, 1.75], [37.75, 1.5], [37.53, 0.97], [37.0, 0.75], [36.75, 0.85], [36.5, 0.75], [36.25, 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mean t2m anomalies.", "value": [-2.292291650607524, -3.1279495578248575, -2.495109501391952, -2.8965621405894315]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.4070078038762404, -6.312493879343435, -3.8778885679589052, -5.0045836102784165]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8709924172214416, -2.4151313760060176, -1.9546578051332368, -2.152271847897166]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.253409924428127, -4.360808841758286, -2.7527813220864674, -3.201401147387124]}}