{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:19.868795", "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": "2024-Oct-16_to_2024-Oct-18_35.5_-22.5"}, "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": 2024100000330}, "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": "October 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2024"}, "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": 54287.70214296574}, "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": ["Mozambique"]}, "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": -22.5}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[34.25, -22.0], [34.47, -21.47], [35.0, -21.25], [35.25, -21.35], [35.32, -21.32], [35.47, -20.97], [36.0, -20.75], [36.25, -20.85], [36.5, -20.75], [36.75, -20.85], [37.0, -20.75], [37.53, -20.97], [37.75, -21.5], [37.65, -21.75], [37.75, -22.0], [37.65, -22.25], [37.75, -22.5], [37.53, -23.03], [37.18, -23.18], [37.15, -23.25], [37.25, -23.5], [37.03, -24.03], [36.5, -24.25], [36.25, -24.15], [36.0, -24.25], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5], [34.35, -22.25], [34.25, -22.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -22.5], [34.35, -22.25], [34.25, -22.0], [34.47, -21.47], [35.0, -21.25], [35.25, -21.35], [35.32, -21.32], [35.47, -20.97], [36.0, -20.75], [36.25, -20.85], [36.5, -20.75], [36.75, -20.85], [37.0, -20.75], [37.53, -20.97], [37.75, -21.5], [37.65, -21.75], [37.75, -22.0], [37.65, -22.25], [37.75, -22.5], [37.53, -23.03], [37.18, -23.18], [37.15, -23.25], [37.25, -23.5], [37.03, -24.03], [36.5, -24.25], [36.25, -24.15], [36.0, -24.25], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5]]]]}, "2024-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -22.5], [34.35, -22.25], [34.25, -22.0], [34.47, -21.47], [35.0, -21.25], [35.25, -21.35], [35.32, -21.32], [35.47, -20.97], [36.0, -20.75], [36.25, -20.85], [36.5, -20.75], [36.75, -20.85], [37.0, -20.75], [37.53, -20.97], [37.75, -21.5], [37.65, -21.75], [37.75, -22.0], [37.65, -22.25], [37.75, -22.5], [37.53, -23.03], [37.18, -23.18], [37.15, -23.25], [37.25, -23.5], [37.03, -24.03], [36.5, -24.25], [36.25, -24.15], [36.0, -24.25], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5]]]]}, "2024-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -22.5], [34.35, -22.25], [34.25, -22.0], [34.47, -21.47], [35.0, -21.25], [35.25, -21.35], [35.32, -21.32], [35.47, -20.97], [36.0, -20.75], [36.25, -20.85], [36.5, -20.75], [36.75, -20.85], [37.0, -20.75], [37.53, -20.97], [37.75, -21.5], [37.65, -21.75], [37.75, -22.0], [37.65, -22.25], [37.75, -22.5], [37.53, -23.03], [37.18, -23.18], [37.15, -23.25], [37.25, -23.5], [37.03, -24.03], [36.5, -24.25], [36.25, -24.15], [36.0, -24.25], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.170963143679728}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.9659455978268787}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.958688889888265, 21.4559643929465, 22.328053109687744]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.61757303873702, 19.464535013834677, 21.306902821858728]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.856016976761294, -2.428878646156806, -1.6129411705625365]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9053787370884265, -4.170963143679728, -2.534568088587946]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6889352141055423, -2.197482850122233, -1.5181708490960681]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9601627336179746, -2.380458617541164, -1.7980327461150831]}}