{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:39.659214", "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": "2022-Jul-13_to_2022-Jul-15_28.0_27.0"}, "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": 2022070000564}, "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 13 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 15 2022"}, "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": 75248.52700032368}, "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": ["Egypt"]}, "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": 27.0}, "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": 26.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, 24.75], [26.25, 25.0], [26.35, 25.25], [26.25, 25.5], [26.35, 25.75], [26.25, 26.0], [26.47, 26.53], [26.82, 26.68], [26.97, 27.03], [27.32, 27.18], [27.35, 27.25], [27.25, 27.5], [27.35, 27.75], [27.25, 28.0], [27.47, 28.53], [28.0, 28.75], [28.25, 28.65], [28.5, 28.75], [28.75, 28.65], [29.0, 28.75], [29.53, 28.53], [29.75, 28.0], [29.65, 27.75], [29.75, 27.5], [29.65, 27.25], [29.75, 27.0], [29.53, 26.47], [29.0, 26.25], [28.57, 26.43], [28.68, 26.18], [29.03, 26.03], [29.18, 25.68], [29.53, 25.53], [29.75, 25.0], [29.53, 24.47], [29.18, 24.32], [29.03, 23.97], [28.68, 23.82], [28.65, 23.75], [28.75, 23.5], [28.53, 22.97], [28.0, 22.75], [27.75, 22.85], [27.5, 22.75], [26.97, 22.97], [26.82, 23.32], [26.47, 23.47], [26.25, 24.0], [26.35, 24.25], [26.25, 24.5], [26.35, 24.75]]]]}, "2022-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, 24.75], [26.25, 25.0], [26.35, 25.25], [26.25, 25.5], [26.35, 25.75], [26.25, 26.0], [26.47, 26.53], [26.82, 26.68], [26.97, 27.03], [27.32, 27.18], [27.35, 27.25], [27.25, 27.5], [27.35, 27.75], [27.25, 28.0], [27.47, 28.53], [28.0, 28.75], [28.25, 28.65], [28.5, 28.75], [28.75, 28.65], [29.0, 28.75], [29.53, 28.53], [29.75, 28.0], [29.65, 27.75], [29.75, 27.5], [29.65, 27.25], [29.75, 27.0], [29.53, 26.47], [29.0, 26.25], [28.57, 26.43], [28.68, 26.18], [29.03, 26.03], [29.18, 25.68], [29.53, 25.53], [29.75, 25.0], [29.53, 24.47], [29.18, 24.32], [29.03, 23.97], [28.68, 23.82], [28.65, 23.75], [28.75, 23.5], [28.53, 22.97], [28.0, 22.75], [27.75, 22.85], [27.5, 22.75], [26.97, 22.97], [26.82, 23.32], [26.47, 23.47], [26.25, 24.0], [26.35, 24.25], [26.25, 24.5], [26.35, 24.75]]]]}, "2022-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, 24.75], [26.25, 25.0], [26.35, 25.25], [26.25, 25.5], [26.35, 25.75], [26.25, 26.0], [26.47, 26.53], [26.82, 26.68], [26.97, 27.03], [27.32, 27.18], [27.35, 27.25], [27.25, 27.5], [27.35, 27.75], [27.25, 28.0], [27.47, 28.53], [28.0, 28.75], [28.25, 28.65], [28.5, 28.75], [28.75, 28.65], [29.0, 28.75], [29.53, 28.53], [29.75, 28.0], [29.65, 27.75], [29.75, 27.5], [29.65, 27.25], [29.75, 27.0], [29.53, 26.47], [29.0, 26.25], [28.57, 26.43], [28.68, 26.18], [29.03, 26.03], [29.18, 25.68], [29.53, 25.53], [29.75, 25.0], [29.53, 24.47], [29.18, 24.32], [29.03, 23.97], [28.68, 23.82], [28.65, 23.75], [28.75, 23.5], [28.53, 22.97], [28.0, 22.75], [27.75, 22.85], [27.5, 22.75], [26.97, 22.97], [26.82, 23.32], [26.47, 23.47], [26.25, 24.0], [26.35, 24.25], [26.25, 24.5], [26.35, 24.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.0501006087591804}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3634579982726533}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.45571724188818, 28.01222066078651, 28.49356830546253]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.60690034117141, 26.252790133892802, 26.610539290549752]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.201254098915302, -2.6715731042275457, -2.2175467916751113]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.37705143488472, -3.0501006087591804, -2.3706560440344333]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3795589078019106, -1.6604937121776222, -1.3599140488819967]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4809094121025534, -1.8217934392590254, -1.4734076380992498]}}