{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:05.670146", "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-Nov-23_to_2022-Nov-26_313.5_-13.5"}, "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": 2022110000872}, "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": "November 23 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 26 2022"}, "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": 84406.52223762749}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -13.5}, "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": 313.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "313.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 311.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.0, -12.75], [-45.47, -12.97], [-45.32, -13.32], [-44.97, -13.47], [-44.75, -14.0], [-44.97, -14.53], [-45.5, -14.75], [-45.75, -14.65], [-46.0, -14.75], [-46.5, -14.54], [-47.0, -14.75], [-47.53, -14.53], [-47.75, -14.0], [-47.53, -13.47], [-47.0, -13.25], [-46.7, -13.38], [-46.53, -12.97], [-46.0, -12.75]]]]}, "2022-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.15, -11.25], [-49.25, -11.0], [-49.03, -10.47], [-48.5, -10.25], [-47.97, -10.47], [-47.82, -10.82], [-47.75, -10.85], [-47.5, -10.75], [-47.25, -10.85], [-47.0, -10.75], [-46.47, -10.97], [-46.25, -11.5], [-46.35, -11.75], [-46.3, -11.88], [-46.0, -11.75], [-45.47, -11.97], [-45.32, -12.32], [-44.97, -12.47], [-44.82, -12.82], [-44.75, -12.85], [-44.5, -12.75], [-43.97, -12.97], [-43.75, -13.5], [-43.97, -14.03], [-44.5, -14.25], [-44.75, -14.15], [-44.82, -14.18], [-44.97, -14.53], [-45.5, -14.75], [-45.75, -14.65], [-46.0, -14.75], [-46.5, -14.54], [-47.0, -14.75], [-47.53, -14.53], [-47.68, -14.18], [-48.03, -14.03], [-48.18, -13.68], [-48.53, -13.53], [-48.75, -13.0], [-48.62, -12.7], [-49.03, -12.53], [-49.25, -12.0], [-49.15, -11.75], [-49.25, -11.5], [-49.15, -11.25]]]]}, "2022-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.15, -11.25], [-49.25, -11.0], [-49.03, -10.47], [-48.5, -10.25], [-47.97, -10.47], [-47.82, -10.82], [-47.75, -10.85], [-47.5, -10.75], [-47.25, -10.85], [-47.0, -10.75], [-46.47, -10.97], [-46.25, -11.5], [-46.35, -11.75], [-46.3, -11.88], [-46.0, -11.75], [-45.47, -11.97], [-45.32, -12.32], [-44.97, -12.47], [-44.82, -12.82], [-44.75, -12.85], [-44.5, -12.75], [-43.97, -12.97], [-43.75, -13.5], [-43.97, -14.03], [-44.5, -14.25], [-44.75, -14.15], [-44.82, -14.18], [-44.97, -14.53], [-45.5, -14.75], [-45.75, -14.65], [-46.0, -14.75], [-46.5, -14.54], [-47.0, -14.75], [-47.53, -14.53], [-47.68, -14.18], [-48.03, -14.03], [-48.18, -13.68], [-48.53, -13.53], [-48.75, -13.0], [-48.62, -12.7], [-49.03, -12.53], [-49.25, -12.0], [-49.15, -11.75], [-49.25, -11.5], [-49.15, -11.25]]]]}, "2022-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.15, -11.25], [-49.25, -11.0], [-49.03, -10.47], [-48.5, -10.25], [-47.97, -10.47], [-47.82, -10.82], [-47.75, -10.85], [-47.5, -10.75], [-47.25, -10.85], [-47.0, -10.75], [-46.47, -10.97], [-46.25, -11.5], [-46.35, -11.75], [-46.3, -11.88], [-46.0, -11.75], [-45.47, -11.97], [-45.32, -12.32], [-44.97, -12.47], [-44.82, -12.82], [-44.75, -12.85], [-44.5, -12.75], [-43.97, -12.97], [-43.75, -13.5], [-43.97, -14.03], [-44.5, -14.25], [-44.75, -14.15], [-45.0, -14.25], [-45.25, -14.15], [-45.5, -14.25], [-46.0, -14.04], [-46.5, -14.25], [-46.75, -14.15], [-47.0, -14.25], [-47.25, -14.15], [-47.5, -14.25], [-48.03, -14.03], [-48.18, -13.68], [-48.53, -13.53], [-48.75, -13.0], [-48.62, -12.7], [-49.03, -12.53], [-49.25, -12.0], [-49.15, -11.75], [-49.25, -11.5], [-49.15, -11.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.1747149330311117}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.294016137111651}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.518743303196516, 22.796055562972697, 22.662236721704176, 22.982369489878636]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.705884880395672, 20.522699187135345, 20.667360023768822, 21.036235525969914]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0631117608784137, -2.2523637194223847, -2.373112066408445, -2.2888161029417424]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.1452918004834487, -2.7635925310727316, -3.1747149330311117, -3.005472699145912]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3204145597696, -1.420660209691977, -1.488050955816028, -1.4047203443029348]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4018023674405184, -1.5948598145615798, -1.8181465730796549, -1.5844181928208447]}}