{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:35.914292", "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-Jan-19_to_2016-Jan-21_28.0_16.0"}, "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": 2016010000477}, "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": "January 19 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 21 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": 55974.42176475578}, "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": ["Sudan"]}, "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": 16.0}, "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": 28.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 18.5], [23.47, 19.03], [23.82, 19.18], [23.97, 19.53], [24.5, 19.75], [25.03, 19.53], [25.18, 19.18], [25.25, 19.15], [25.5, 19.25], [26.03, 19.03], [26.25, 18.5], [26.15, 18.25], [26.18, 18.18], [26.25, 18.15], [26.5, 18.25], [26.75, 18.15], [27.0, 18.25], [27.53, 18.03], [27.68, 17.68], [27.75, 17.65], [28.0, 17.75], [28.53, 17.53], [28.75, 17.0], [28.65, 16.75], [28.75, 16.5], [28.65, 16.25], [28.75, 16.0], [28.53, 15.47], [28.0, 15.25], [27.47, 15.47], [27.32, 15.82], [26.97, 15.97], [26.82, 16.32], [26.47, 16.47], [26.32, 16.82], [26.25, 16.85], [26.0, 16.75], [25.75, 16.85], [25.5, 16.75], [25.25, 16.85], [25.0, 16.75], [24.47, 16.97], [24.32, 17.32], [23.97, 17.47], [23.82, 17.82], [23.47, 17.97], [23.25, 18.5]]]]}, "2016-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 18.5], [23.47, 19.03], [23.82, 19.18], [23.97, 19.53], [24.5, 19.75], [25.03, 19.53], [25.18, 19.18], [25.25, 19.15], [25.5, 19.25], [26.03, 19.03], [26.25, 18.5], [26.15, 18.25], [26.18, 18.18], [26.25, 18.15], [26.5, 18.25], [26.75, 18.15], [27.0, 18.25], [27.53, 18.03], [27.68, 17.68], [27.75, 17.65], [28.0, 17.75], [28.53, 17.53], [28.75, 17.0], [28.65, 16.75], [28.75, 16.5], [28.65, 16.25], [28.75, 16.0], [28.53, 15.47], [28.0, 15.25], [27.47, 15.47], [27.32, 15.82], [26.97, 15.97], [26.82, 16.32], [26.47, 16.47], [26.32, 16.82], [26.25, 16.85], [26.0, 16.75], [25.75, 16.85], [25.5, 16.75], [25.25, 16.85], [25.0, 16.75], [24.47, 16.97], [24.32, 17.32], [23.97, 17.47], [23.82, 17.82], [23.47, 17.97], [23.25, 18.5]]]]}, "2016-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 18.5], [23.47, 19.03], [23.82, 19.18], [23.97, 19.53], [24.5, 19.75], [25.03, 19.53], [25.18, 19.18], [25.25, 19.15], [25.5, 19.25], [26.03, 19.03], [26.25, 18.5], [26.15, 18.25], [26.18, 18.18], [26.25, 18.15], [26.5, 18.25], [26.75, 18.15], [27.0, 18.25], [27.53, 18.03], [27.68, 17.68], [27.75, 17.65], [28.0, 17.75], [28.53, 17.53], [28.75, 17.0], [28.65, 16.75], [28.75, 16.5], [28.65, 16.25], [28.75, 16.0], [28.53, 15.47], [28.0, 15.25], [27.47, 15.47], [27.32, 15.82], [26.97, 15.97], [26.82, 16.32], [26.47, 16.47], [26.32, 16.82], [26.25, 16.85], [26.0, 16.75], [25.75, 16.85], [25.5, 16.75], [25.25, 16.85], [25.0, 16.75], [24.47, 16.97], [24.32, 17.32], [23.97, 17.47], [23.82, 17.82], [23.47, 17.97], [23.25, 18.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.664059691182956}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5881925151497573}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.784650013847056, 9.81885714074673, 10.777540274338094]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.178085210448387, 8.360365311033831, 9.168345932450734]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0844214879580667, -4.227218009583271, -3.452938047907935]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.364207863190643, -4.664059691182956, -3.742799217303343]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.1285885091816759, -1.4828257615687863, -1.152022941087274]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.21177614817817, -1.6200394444649195, -1.2501584435734594]}}