{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:34.207556", "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-Jun-03_to_2014-Jun-05_9.0_28.5"}, "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": 2014060000197}, "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": "June 03 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 05 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": 106063.41065949296}, "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": ["Algeria", "Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 28.5}, "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": 9.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "9.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 12.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.97, 29.53], [6.5, 29.75], [7.03, 29.53], [7.18, 29.18], [7.25, 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29.15], [8.0, 29.25], [8.25, 29.15], [8.32, 29.18], [8.47, 29.53], [9.0, 29.75], [9.25, 29.65], [9.32, 29.68], [9.47, 30.03], [10.0, 30.25], [10.25, 30.15], [10.5, 30.25], [10.75, 30.15], [11.0, 30.25], [11.25, 30.15], [11.5, 30.25], [11.75, 30.15], [12.0, 30.25], [12.53, 30.03], [12.75, 29.5], [12.53, 28.97], [12.18, 28.82], [12.15, 28.75], [12.25, 28.5], [12.03, 27.97], [11.68, 27.82], [11.53, 27.47], [11.18, 27.32], [11.15, 27.25], [11.25, 27.0], [11.03, 26.47], [10.5, 26.25], [10.25, 26.35], [10.0, 26.25], [9.75, 26.35], [9.5, 26.25], [8.97, 26.47], [8.82, 26.82], [8.75, 26.85], [8.5, 26.75], [7.97, 26.97], [7.82, 27.32], [7.75, 27.35], [7.5, 27.25], [6.97, 27.47], [6.82, 27.82], [6.75, 27.85], [6.5, 27.75], [5.97, 27.97], [5.75, 28.5], [5.85, 28.75], [5.75, 29.0], [5.97, 29.53]]]]}, "2014-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.97, 29.53], [6.5, 29.75], [7.03, 29.53], [7.18, 29.18], [7.25, 29.15], [7.5, 29.25], [7.75, 29.15], [8.0, 29.25], [8.25, 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over entire duration", "value": -5.988905615896032}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.669177871105262, 24.24254554107148, 27.47466450888095]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.404583765843086, 21.86427464830581, 24.416581469648065]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.596448924698002, -7.215400561966876, -4.154867361023212]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.173667574354454, -7.716818637147867, -4.885056351214928]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.403438401307873, -2.688983128653286, -1.5799226990664175]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.167945075335921, -2.8909244784123582, -1.8871239691119344]}}